Konica Minolta 7155 Service Manual
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Konica Minolta 7155 Service Manual

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Table of Contents

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See also: Instruction Manual
SERVICE MANUAL
Models
7155/7165/7255/7272
JANUARY 2004
CSM-7155/7165/7255/7272
KONICA MINOLTA BUSINESS SOLUTIONS U.S.A., INC.

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Summary of Contents for Konica Minolta 7155

  • Page 1 SERVICE MANUAL Models 7155/7165/7255/7272 JANUARY 2004 CSM-7155/7165/7255/7272 KONICA MINOLTA BUSINESS SOLUTIONS U.S.A., INC.
  • Page 3 7155/7165/7255/7272 SERVICE MANUAL JANUARY 2004...
  • Page 4 Corporate Publications Department © 2004, KONICA MINOLTA BUSINESS SOLUTIONS U.S.A. , INC. All rights reserved. Printed in U.S.A.

  • Page 5: Table Of Contents

    CONTENTS CONTENTS LIST OF DIFFERENCE for 7155/7165 and SAFETY AND IMPORTANT WARNING ..S-1 7255/7272..............1 ITEMS 1. OUTLINE IMPORTANT NOTICE ....S-1 OUTLINE OF SYSTEM ..........1-1...
  • Page 6 Counter Control........2-P-8 TGR (Toner Guide Roller) Control... 2-I-2 Option Control ........2-P-9 Other Control........... 2-I-2 3. DISASSEMBLY/ASSEMBLY TRAY 1/2 (7155, 7165), TRAY 3/4 (7255/7272) PAPER FEED UNIT..........2-J-1 EXTERNAL SECTION........... 3-A-1 Composition..........2-J-1 Replacing the Ozone Filter..... 3-A-1 Mechanisms ........... 2-J-1 Replacing the Developing Suction First Paper Feed Control ......
  • Page 7 Wire Cleaning Unit.........3-F-3 and/ R............3-J-11 Removing and Reinstalling the PCL..3-F-3 Replacing the Wires ......3-J-12 Cleaning the Charging Corona PAPER FEED UNIT OF TRAY 3 (7155/7165)..3-K-1 Unit/PCL ..........3-F-4 Removing and Reinstalling the Paper Removing and Reinstalling the Transfer/ Feed Unit..........3-K-1 Separation Corona Unit ......3-F-4...
  • Page 8 Removing and Reinstalling the Fixing Upper Roller and Fixing Drive Gear ..3-O-7 [10] Removing and Reinstalling the Fixing Lower Roller .......... 3-O-8 [11] Removing and Reinstalling the Decurler........... 3-O-8 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...

  • Page 9: Safety And Important Warning Items

    Because of possible hazards to an inexperienced person servicing this copier as well as the risk of damage to the copier, Konica Minolta Business Technologies, INC. (hereafter called the KMBT) strongly recommends that all servicing be performed only by KMBT-trained service technicians.
  • Page 10 MODIFICATIONS NOT AUTHORIZED BY KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. Konica Minolta brand copiers are renowned for their high reliability. This reliability is achieved through high-quality design and a solid service network. Copier design is a highly complicated and delicate process where numerous mechanical, physical, and electrical aspects have to be taken into consideration, with the aim of arriving at proper tolerances and safety factors.
  • Page 11 CHECKPOINTS WHEN PERFORMING ON-SITE SERVICE Konica Minolta brand copiers are extensively tested before shipping, to ensure that all applicable safety standards are met, in order to protect the customer and customer engineer (hereafter called the CE) from the risk of injury. However, in daily use, any electrical equipment may be subject to parts wear and eventual failure.
  • Page 12 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Power Plug and Cord • Do not bundle or tie the power cord. Overheating may occur there, leading to a risk of fire. • Check whether dust is collected around the power plug and wall outlet. Using the power plug and wall outlet without removing dust may result in fire.
  • Page 13 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Ground Lead • Pay attention to the point to which the ground lead is connected. Connecting the ground lead to an improper point such as the points listed below results in a risk of explosion and electric shock: a.
  • Page 14 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...
  • Page 15 SAFETY AND IMPORTANT WARNING ITEMS DANGER: Work Performed with the Copier Powered • Take every care when servicing with the external cover detached. High-voltage exists around the drum unit. A risk of electric shock exists. WARNING: Safety Checkpoints • Check the exterior and frame for edges, burrs, and other damages. The user or CE may be injured.
  • Page 16 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Safety Checkpoints • After replacing a part to which AC voltage is applied (e.g., optical lamp and fixing lamp), be sure to check the installation state. A risk of fire exists. • Check the interlock switch and actuator for loosening and check whether the interlock functions properly.
  • Page 17 2. When performing service, each copier on the site must be tested for safety. The customer engineer must verify the safety of parts and ensure appropriate management of the equipment. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...
  • Page 18 SAFETY AND IMPORTANT WARNING ITEMS SAFETY INFORMATION IMPORTANT INFORMATION The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration implemented regulations for laser products manufactured since August 1, 1976. Compliance is mandatory for products mar- keted in the United States.
  • Page 19 SAFETY AND IMPORTANT WARNING ITEMS SAFETY CIRCUITS This machine is provided with the following safety circuits Protection by L2, L3 and L4 (Fixing to prevent machine faults from resulting in serious acci- Heater Lamps) Overheating Preven- dents. tion Circuit Overall protection circuit L2 and L3 (fixing heater lamps) overheating DCPS prevention circuit...
  • Page 20 SAFETY AND IMPORTANT WARNING ITEMS Protection by the hardware circuit The output voltages from TH1 and TH2 (fixing temperature sensors) are compared with the abnor- mality judgment reference value in the comparator circuit. If the output voltage from TH1 or TH2 exceeds the reference value, L2 (fixing heater lamp 1), L3 (fixing heater lamp 2), L4 (fixing heater lamp 3) and RL1 (main relay) are turned OFF in...
  • Page 21 SAFETY AND IMPORTANT WARNING ITEMS INDICATION OF WARNING ON THE MACHINE Caution labels shown below are attached in some areas on/in the machine. When accessing these areas for maintenance, repair, or adjustment, special care should be taken to avoid burns and electric shock.
  • Page 22 SAFETY AND IMPORTANT WARNING ITEMS In the case of the 7155/7165 CAUTION You may be burned or injured if you touch any area that you are advised by any caution label to keep your- self away from. Do not remove caution labels. If any caution label has come off or soiled and therefore the caution cannot be read, contact our Service Office.
  • Page 23 Do not remove caution labels. If any caution label has come off or soiled and therefore the caution cannot be read, contact our Service Office. MODEL MANUAL REVISED EDITION DATE PAGE METHOD S-15 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 S-14-1 ADDITION...
  • Page 24 Do not remove caution labels. If any caution label has come off or soiled and therefore the caution cannot be read, contact our Service Office. MODEL MANUAL REVISED EDITION DATE PAGE METHOD S-16 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 S-14-2 ADDITION...
  • Page 25 SAFETY AND IMPORTANT WARNING ITEMS SCANNER SECTION 7272sf004 WRITE UNIT In the case of the 7155/7165 7272sf005 In the case of the 7255/7272 7272sf001 MODEL MANUAL REVISED EDITION DATE PAGE METHOD S-17 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 S-15 REPLACEMENT...
  • Page 26 SAFETY AND IMPORTANT WARNING ITEMS REAR COVER CAUTION You may be burned or injured if you touch any area that you are advised by any caution label to keep your- self away from. Do not remove caution labels. If any caution label has come off or soiled and therefore the caution cannot be read, contact our Service Office.
  • Page 27 Do not remove caution labels. If any caution label has come off or soiled and therefore the caution cannot be read, contact our Service Office. MODEL MANUAL REVISED EDITION DATE PAGE METHOD S-19 S-17 7155/7165 SERVICE HANDBOOK Apr. 2003 ADDITION...
  • Page 28 Blank page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 S-18 ADDITION...
  • Page 29 7155/7165/7255/7272 LIST OF DIFFERENCE LIST OF DIFFERENCE FOR 7155/7165 AND 7255/7272 Classification 7155 7165 7255 7272 Reason Warm-up time 5.5 minutes 6.5 minutes 5 minutes 6 minutes Change of fixing max.(at 68 ºF max.(at 68 ºF max.(at 68 ºF max.(at 68 ºF...
  • Page 30 Blank page...

  • Page 31: Outline

    OUTLINE...
  • Page 32 Blank page...

  • Page 33: Outline Of System

    MAIN BODY OUTLINE OF SYSTEM In the case of the 7155/7165 PS3 option [PS-351] Cover sheet feeder Printer controller [PI-110] [IP-511] Expansion memory unit [MU-404/405] Key counter Hard disk Punch kit [HD-105] Expansion memory unit [PK-110/120] [MU-401/402] Adapter for PZ...
  • Page 34 Cover sheet feeder [LT-402] [PI-110] Puncher with Punch kit Z-folding function [PK-110/120] [PZ-108/109] [LT-412] Adapter for PZ [PZ-108A-kit] Finisher [FS-210] Finisher [FS-111] Shift tray 101] 7272ma1001 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-1-1 ADDITION...
  • Page 35 Blank page...
  • Page 36 • Inch area AE or AES, manual (9 steps) 11x17 to 8.5x5.5, A3 to B5R, F4 Arbitrary density (2 modes) Wide paper (7155/7165:314 mm x 459 mm max.) E-RDH memory capacity: (7255/7272:314 mm x 458 mm max.) Standard 64 MB...
  • Page 37 Expansion memory unit: Periodic maintenance: Every 250,000 copies MU-401, MU-404 (64 MB) MU-402, MU-405 (128 MB) [7] Consumables Paper exit tray Developer: Common to 7155/7165/7255/7272 Hard disk: HD-105 Toner: Common to 7155/7165/7255/7272 Finisher: FS-110, FS-210, FS-111 Drum: Common to 7155/7165/7255/7272 Shift tray: SF-101 φ...

  • Page 38: Central Cross-Sectional View

    MAIN BODY CENTRAL CROSS-SECTIONAL VIEW In the case of the 7155/7165 Charging corona section RADF(DF-316) Image write section Cleaning section Image read section Toner supply section Fixing section Developing section Second paper feed section Paper exit section Bypass tray Loop roller...
  • Page 39 Paper reverse exit section Transfer corona section Horizontal conveyance section Tray 1 Tray 2 Vertical conveyance section Tray 3 Tray 4 Paper conveyance section Separation corona section 7272ma1002 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-4-1 ADDITION...
  • Page 40 Blank page...

  • Page 41: Drive System Diagram

    MAIN BODY DRIVE SYSTEM DIAGRAM [1] Fixing/Web Drive Section Cleaning web unwinding shaft Web SD (SD2) Ratchet Cleaning web wind-up shaft FRONT Fixing input gear Reverse/exit switching gate Fixing upper roller Fixing lower roller Fixing motor (M4) Decurler roller Reverse gate SD (SD7)

  • Page 42: Drum Drive Section

    MAIN BODY [2] Drum Drive Section Separation claw swing cam Separation claw SD (SD1) Drum Drum motor (M2) Separation claw section Toner conveyance screw Toner guide roller Toner conveyance screw Drum motor (M2) [3] Developing Drive Section Developing sleeve Agitator screws Developing motor (M3) Agitator wheel 1-10...

  • Page 43: Paper Feed/Vertical Conveyance/Tray Up Drive Section

    MAIN BODY [4] Paper Feed/Vertical Conveyance/Tray Up Drive Sections In the case of the 7155/7165 Paper feed roller Paper feed MC (MC3/5/7) Pre-registration MC (MC4/6/8) Feed roller Pre-registration roller Double feed prevention roller Tray 1/2 Drive belt Vertical conveyance MC/1 (MC11)
  • Page 44 Paper feed motor (M1) Up/down plate Tray up drive motor/1 (M16) Tray up drive motor/2 (M17) Tray up drive motor/3 (M18) Tray up drive motor/4 (M19) 7272ma1003 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-12 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-7-1 ADDITION...
  • Page 45 Blank page...

  • Page 46: Bypass Paper Feed/Adu Pre-Registration Drive Section

    MAIN BODY [5] Bypass Paper Feed /ADU Pre-Registration Drive Section Paper feed roller Feed roller Loop roller ADU pre-registration roller Loop roller motor (M6) Paper up/down plate Up/down motor/BP (M20) 1-14...

  • Page 47: Charging And Transfer/Separation Wire Cleaning Drive Section

    MAIN BODY [6] Charging and Transfer/Separation Wire Cleaning Drive Section [Charging corona unit] Charging cleaning motor (M14) [Transfer and separation corona unit] FRONT Transfer/separation cleaning motor (M10) 1-15...

  • Page 48: Adu Conveyance Drive Section

    ADU reverse roller ADU conveyance MC (MC13) ADU reverse motor (M9) Reverse/exit gate Reverse/exit motor (M8) Reverse/exit roller ADU gate FRONT Reverse/exit roller knob 7272ma1004 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-16 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-10 REPLACEMENT...

  • Page 49: Paper Exit Drive Section

    MAIN BODY [8] Paper Exit Drive Section Paper exit motor (M7) Exit conveyance roller Paper exit roller [9] Toner Supply Drive Section Toner cartridge Toner bottle motor (M13) Toner supply motor (M12) Toner supply screws Toner supply screw [Rear view] Toner conveyance screw [Front view] 1-17...

  • Page 50: Optics Drive Section

    MAIN BODY [10] Optics Drive Section Scanner drive wire (rear) Scanner motor (M11) Exposure unit FRONT Scanner drive wire (front) V-mirror unit 1-18 1-12...

  • Page 51: Unit Explanation

    UNIT EXPLANATION...
  • Page 52 Blank page...

  • Page 53: External Section

    EXTERNAL SECTION EXTERNAL SECTION [1] Composition In the case of the 7155/7165 Operation panel Sub power switch (SW2) RADF Right side cover (upper) Toner supply cover Front right cover Developing suction filter cover Front left cover Tray 1 Bypass tray...
  • Page 54 Horizontal conveyance section Right side cover (lower front) Main power switch (SW1) Ozone filter cover Paper exit tray Optional cover Rear cover Left side cover 7272ma2001 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-A-2 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-A-2 REPLACEMENT...

  • Page 55: Drive Section

    Paper type Motor speed Fixing Fixing roller (upper) Gear drive (ded- Thick paper 185 mm/s (7155/7165) drive*1 icated motor) 172.5mm/s (7255/7272) Paper Tray 1/2/3, Vertical Gear drive (ded- Others 280 mm/s (7155/7255)

  • Page 56: M2 (Drum) Control

    DRIVE SECTION [3] M2 (Drum) Control 2. Signals Input signal (1) DRUM_EM (M2 to PRCB) M2 (drum) rotation abnormality detection signal [H]: Rotation error (when motor speed changes P.GND DRUM CONT by 6.5% more or less than the motor speed DRUM CLK CW/CCW specified value)

  • Page 57: M4 (Fixing) Control

    DRIVE SECTION [4] M4 (Fixing) Control 2. Signals Input signal (1) MAINM_EM (M4 to PRCB) M4 (fixing) rotation error detection signal [H]: Rotation error (when motor speed changes P.GND MAINM CONT by 6.5% more or less than the motor speed MAINM CLK MAINM F/R specified value)
  • Page 58 Blank page...

  • Page 59: Scanner Section

    SCANNER SECTION SCANNER SECTION [1] Composition Scanner HP PS (PS61) Exposure unit APS sensor 3 (PS65) V-mirror unit APS sensor 1 (PS63) Slit glass APS sensor 2 (PS64) Optical rail (R) Scanner cooling fan (FM9) Scanner drive wire Exposure lamp (L1) L1 inverter (L1 INVB) A/D converter board (ADB)

  • Page 60: M11 (Scanner) Control

    Next, M11 moves Operation mode Movement speed the exposure unit toward the paper exit side. Scan (1:1) 320 mm/s (7155/7165) After being driven by the specified number of 357 mm/s (7255/7272) steps, M11 performs the second white correc- tion.
  • Page 61 SCANNER SECTION ADF copy operation Platen APS PS61 After completion of the shading correction read position started by pressing the START button, M11 (scanner) moves the exposure unit toward the paper exit side. After being driven by the speci- First white correction fied number of steps from the position where Second PS61 (scanner HP) was turned ON, it stops.
  • Page 62 [L]: The exposure unit is detected. the AE mode has been selected. [H]: The exposure unit is not detected. EE scanning distance is different between 7155/ b. PRCB output signal 7165 and 7255/7272. (1) SCAN_CLK (PRCB to SCDB)

  • Page 63: Exposure Control

    SCANNER SECTION [4] Exposure Control [5] Original Read Control In the case of the 7155/7165 EXP CONT 12V2 12V2 L1 INVB CONT LAMP.PG ADRST PDWN PRCB /TCK S.GND /RCK 24V1 LCLK1 S.GND P.GND /LCLK1 L.PG SCLK DCPS SCDB /SEN L1 (exposure lamp) is driven by L1 INVB (L1...
  • Page 64 The original read timing is as follows: (1) Platen mode After lapse of the specified interval since the exposure unit turned PS61 (scanner HP) OFF. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-C-6 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-C-5-1 ADDITION...
  • Page 65 Blank page...

  • Page 66: Aps Control

    SCANNER SECTION [6] APS Control Relationships between sensors and paper sizes are as follows: Sensor S.GND APC CONT PS51 PS65 PS63 PS64 APS TIM COVER SIG Paper size APS.1 SIG APS.2 SIG S.GND PS63 APS.3 SIG APS.1 Min. size APS 5V S.GND PS64 APS.2...
  • Page 67 SCANNER SECTION 2. Signals [7] AE Control Input signals In the case of the 7155/7165 (1) APS_TIM (PS51 to SCDB) ADF open/close detection signal 12V2 [L]: ADF is closed. 12V2 [H]: ADF is open. ADRST (2) APS.1/APS.1_SIG (PS63 to SCDB to ICB)
  • Page 68 <AE sampling area> -RCLK 1) Normal copy +RCLK 10 mm inside the perimeter of the original +TCK detected by APS. (7155/7165) -TCK 10 mm inside the perimeter of the scanned area SCLK within 30mm from the leading edge of an original. /SEN...

  • Page 69: Write Unit

    OPC drum via the collimator f lens θ lens, cylindrical lens 1, polygon mirror, f lens, Cylindrical lens 2 cylindrical lens 2, and write mirror. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Nov. 2001 REPLACEMENT 2-D-1...

  • Page 70: M15 (Polygon) Control

    Its rotation is held constant by PLL control. b. Rotational speed M15 is powered by 24 VDC and its rotational speed is as follows: In the case of the 7155/7165 Rotational Linear 7155 7165 speed...
  • Page 71 WRITE UNIT 2. Signals [4] Image Write Control Input signals In the case of the 7155/7165 (1) POLM_LOCK (PMDB to PRCB) This signal indicates the clock synchronization SGND state of M15 (polygon). /IND SGND INDXSB /INDPR [L]: Synchronous (normal) [H]: Asynchronous (abnormal)
  • Page 72 INDXSB (index sensor board). The ICB has an E-RDH (electronic RDH) function to store dig- itized image data. Various editing functions can be performed based on this data. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-D-4 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-D-3-1 ADDITION...
  • Page 73 Blank page...
  • Page 74 WRITE UNIT 1. Operation (2) APC (Automatic Power Control) Image processing After MPC is set, the ICB (image control board) The following processing is performed by the ICB outputs an APC start instruction to LDB (laser (image control board): driver board) at the following timing: (1) AOC (Automatic Offset Control) <APC timing>...
  • Page 75 Sampling signal for laser bias current control (for laser 1) (7255/7272 only) (11) /S/HB2 (ICB to LDB) Sampling signal for laser bias current control (for laser 2) (7255/7272 only) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-D-7 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-D-5 REPLACEMENT...
  • Page 76 Blank page...

  • Page 77: Drum Unit

    DRUM UNIT DRUM UNIT [1] Composition Cleaning/toner recycle section Charging corona unit Separation claw SD (SD1) Separation Developing unit claws Toner guide roller (TGR) Drum Charging corona unit Drum Cleaning/toner recycle section Developing unit Transfer and separation corona unit [2] Mechanisms Mechanism Method Separation claw SD (SD1)

  • Page 78: Separation Claw Control

    DRUM UNIT [3] Separation Claw Control [4] Paper Guide Plate Control MC24V 2 GP.CONT SPSD DRV PRCB P.GND DRUM CONT DRUM CLK 24V2 CW/CCW DRUM EM P.GND DCPS PRCB 24V2 To prevent toner from adhering to the paper P.GND guide plate, a constant voltage is applied to the DCPS paper guide plate.

  • Page 79: Corona Unit Section

    CORONA UNIT SECTION CORONA UNIT SECTION [1] Composition <Charging corona unit> <Transfer and separation corona unit> Transfer entrance Guide rollers guide plate Charging control plate Transfer Charging corona wire corona wire Plunging prevention plate (rear) Separation corona wire Plunging prevention plate (front) Charging wire cleaning motor (M14)

  • Page 80: Charging Control

    CORONA UNIT SECTION [3] Charging Control b. Output signals (1) C.CONT (PRCB to HV) C.CONT This signal turns ON/OFF the charging wire. EM(C).SIG [L]: Charging voltage ON LATCH [H]: Charging voltage OFF CHARGING PRCB (2) TXD (PRCB to HV) Output level of each high voltage electrode. 24V2 Serial data signal for control P.GND...

  • Page 81: Transfer/Separation Control

    CORONA UNIT SECTION [4] Transfer/Separation Control b. PRCB output signals (1) T.CONT (PRCB to HV) This signal turns ON/OFF the voltage applied to T.CONT EM(T).SIG the transfer wire. S.CONT EM(S).SIG [L]: Transfer voltage ON TRANSFER [H]: Transfer voltage OFF LATCH (2) S.CONT (PRCB to HV) PRCB SEPARATION...

  • Page 82: M14 (Charger Cleaning) Control

    CORONA UNIT SECTION [5] M14 (Charger Cleaning) Control 2. Signals Output signal (1) CHGM_A, B (PRCB to M14) CHGM A M14 (charger cleaning) drive control signal. CHGM B The drive direction of M14 is controlled by switch- ing between the drive current directions of two signals.

  • Page 83: Model Manual Revised Edition Date

    M10 (transfer/separation cleaning). The rotational direction of M10 and the position of the cleaner are detected by monitoring the cur- rent value of M10 with PRCB (printer control board). (7155/7165) MODEL MANUAL REVISED EDITION DATE...

  • Page 84: Pcl/Tsl Control

    CORONA UNIT SECTION b. Output signals [7] PCL/TSL Control (1) SEP_CLM_M A, B (ADUDB to M10) M10 (transfer/separation cleaning) drive control MC 24V2 signal PCL CONT The drive direction of M10 (transfer/separation IO DTXD IO DCLK cleaning) drive control signal ADU LATCH IO UCLK The drive direction of M10 is controlled by switch-...

  • Page 85: Developing Unit

    DEVELOPING UNIT DEVELOPING UNIT [1] Composition Splash prevention Developing unit cover sheet (upper) Developing regulation plate Agitator screws Agitator Developing Developing sleeve wheel Agitator Developing sleeve screws regulation plate [2] Mechanisms Splash prevention sheet (upper) Mechanism Method Developing 2-component developer Developing regulation plate Developing bias...

  • Page 86: M3 (Developing) Control

    DEVELOPING UNIT [3] M3 (Developing) Control 2. Signals Input signals (1) DEVM_EM (M3 to PRCB) P.GND M3 (developing) abnormality detection signal DEVM CONT DEVM CLK [H] Abnormal rotation (when motor speed DEVM CW/CCW DEVM GAIN changes by 6.5% more or less than the motor DEVM EM PRCB speed specified value)

  • Page 87: Developing Bias Control

    DEVELOPING UNIT [4] Developing Bias Control B.CONT LATCH BIAS PRCB 24V1 P.GND DCPS The developing bias voltage is supplied from HV (high voltage unit) and is controlled by PRCB (printer control board). The output level of the developing bias voltage is transmitted using 8-bit serial data.

  • Page 88: Dmax Control

    DEVELOPING UNIT [5] Dmax Control A.GND P.GND DMLED CONT DRUM CONT DM MONI EX DRUM CLK DJLED CONT CW/CCW DM SIG EX DRUM EM DRUM JSIG EX TNLED REF TEMP 3.3V2 TCSB P.GND DEVM CONT DEVM CLK DEVM CW/CCW DEVM GAIN DEVM EM PRCB 12V2...
  • Page 89 DEVELOPING UNIT 2. Signals Input signals (1) DM_SIG_EX (TCSB to PRCB) Output voltage of Dmax detection sensor (PC1) on TCSB (toner control sensor board) Reference voltage: 2.5 V (2) DM_MONI_EX (TCSB to PRCB) This signal monitors the light reflected by the drum surface (without toner).

  • Page 90: Gradation Correction Control

    DEVELOPING UNIT [6] Gradation Correction Control A.GND P.GND DRUM CONT G SIG EX DRUM CLK LED CONT CW/CCW DRUM EM TNLED REF TCSB P.GND DEVM CONT DEVM CLK DEVM CW/CCW DEVM GAIN DEVM EM PRCB 12V2 S.GND MS1 MS2 24V2 P.GND DCPS Gradation correction control is performed by...

  • Page 91: Dot Diameter Correction Control

    DEVELOPING UNIT [7] Dot Diameter Correction Control [8] Toner Density Control TNSM24V TNSM24V A.GND A.GND TNSM A DMLED CONT TNSM AB DM MONI EX G SIG EX TNSM B DJLED CONT LED CONT TNSM BB DM SIG EX DRUM JSIG EX TNLED REF TNLED REF TEMP...

  • Page 92: Fm4 (Developing Suction) Control

    DEVELOPING UNIT [9] FM4 (Developing Suction) Control SUCTFAN D SFAN EM P.GND PRCB 24V1 S.GND P.GND DCPS FM4 (developing suction) is controlled by PRCB (printer control board). 1. Operation ON timing FM4 (developing suction) is turned ON when M2 (drum) is turned ON. b.

  • Page 93: Toner Supply Unit

    TONER SUPPLY UNIT TONER SUPPLY UNIT [1] Composition Toner cartridge Toner bottle motor (M13) Hopper Toner level detection sensor (TLD) Toner supply motor (M12) Toner supply screws [2] Mechanisms Mechanism Method Toner cartridge Toner supply Supply by screw Toner level detection Piezoelectric method ±...

  • Page 94: Toner Level Detection Control

    TONER SUPPLY UNIT *2 Toner cartridge [3] Toner Level Detection Control When the toner cartridge rotates, toner is fed to the outlet of the cartridge through the spiral S.GND groove on the surface of the toner cartridge. TONER SIG T SENSE CONT When the outlet of the cartridge faces downward, toner flows out of the outlet into the agitation/con- P.GND...

  • Page 95: M12 (Toner Supply) Control

    TONER SUPPLY UNIT 2. Signals [4] M12 (Toner Supply) Control Input signals (1) TONER_SIG (TLD to PRCB) TNSM24V When the level of toner in the toner supply unit TNSM24V TNSM A becomes low, this signal goes low ([L]), display- TNSM AB TNSM B ing a message on the LCD connected to OB1 TNSM BB...
  • Page 96 TONER SUPPLY UNIT b. Toner supply When the voltage detected by TCSB (toner con- trol sensor board) is below the specified value, PRCB issues a control signal to drive M12 (toner supply). The relationship between the paper size and toner supply time is summarized in the fol- lowing table: Paper size Supply time (sec.)

  • Page 97: Cleaning/Toner Recycle Unit

    CLEANING/TONER RECYCLE UNIT CLEANING/TONER RECYCLE UNIT [1] Composition Cleaning blade Cleaning/toner recycle section Toner guide roller (TGR) Cleaning blade Scraper Toner recycle MC (MC14) Separation Toner conveyance screw Drum claw [2] Mechanisms Mechanism Method HV Terminal Drum cleaning Cleaning blade Toner collection *1 Toner guide roller (TGR) Cleaning blade Toner recycle...

  • Page 98: Tgr (Toner Guide Roller) Control

    PRCB (printer control board). The out- cleaned. put level of the applied voltage is transmitted 7155/7165: once every 10 copies using 8-bit serial data. This serial data includes 7255/7272: once every 12 copies the level information for all outputs driven by the * Changeable with the 25-mode DIP SW HV unit excluding the ON/OFF control signal.

  • Page 99: Tray 1/2 (7155/7165), Tray 3/4 (7255/7272) Paper Feed Unit

    TRAY 1/2 (7155/7165), TRAY 3/4 (7255/7272) PAPER FEED UNIT Caution: Tray 1/2 of 7155/7165 and tray 3/4 of 7255/7272 have the same shape and mechanism. Therefore, the explanation for only tray 1 and 2 shall be given here. [1] Composition...
  • Page 100 TRAY 1/2 (7155/7165), TRAY 3/4 (7255/7272) PAPER FEED UNIT b) Lowering of tray *3 First paper feed paper loop mechanism When the paper feed tray is pulled out, the When paper feed starts, paper is fed to the pre- coupling shaft of the tray is disengaged from...

  • Page 101: First Paper Feed Control

    TRAY 1/2 (7155/7165), TRAY 3/4 (7255/7272) PAPER FEED UNIT [3] First Paper Feed Control 24V1 MC24V_1 P.GND T1FEED_DRV S.GND MC24V_1 Tray 1 T1PREMC_DRV 24V2 P.GND T1PRE_PS SGND DCPS MC24V_1 FEEDM_CONT FEEDM_CLK FEEDM_F/E MC24_1 Tray 2 FEEDM_EM T2PREMC_DRV P.GND T2PRE_PS SGND...
  • Page 102 TRAY 1/2 (7155/7165), TRAY 3/4 (7255/7272) PAPER FEED UNIT 2. Signals PRCB input signals (1) T1PRE_PS (PS1 to PRCB) Paper passage detection signal (tray 1) [L]: Detected. [H]: Not detected. (2) T2PRE_PS (PS7 to PRCB) Paper passage detection signal (tray 2) [L]: Detected.

  • Page 103: Paper Up Drive Control

    TRAY 1/2 (7155/7165), TRAY 3/4 (7255/7272) PAPER FEED UNIT [4] Paper Up Drive Control 24V1 TIUP_PS P.GND SGND Tray 1 S.GND TIRM_PS DCPS SGND T2UP_PS T1RISEM_24V SGND Tray 2 T1RISEM_D PS10 T2RM_PS SGND T2RISEM_24 T2RISEM_D PRCB Paper stacked in the tray is pushed up by trans- b.

  • Page 104: Paper Size Detection Control

    TRAY 1/2 (7155/7165), TRAY 3/4 (7255/7272) PAPER FEED UNIT 2. Signals [5] Paper Size Detection Control PRCB input signals Tray 1 (1) T1UP_PS (PS2 to PRCB) Paper upper limit detection signal (tray 1) T1SIZE_S_PS SGND [L]: Not detected. T1SIZE_L_PS [H]: Detected.

  • Page 105: No Paper Detection Control

    TRAY 1/2 (7155/7165), TRAY 3/4 (7255/7272) PAPER FEED UNIT 2. Signals [6] No Paper Detection Control PRCB input signals (1) T1SIZE_S_PS (PS5 to PRCB) Paper size detection signal (tray 1) T1_0PS SGND [L]: Paper does not exist. T2_0PS [H]: Paper exists.

  • Page 106: Tray 1/2 Paper Feed Unit (7255/7272)

    Photosensor + Actuator 2 (M17) stops. 1st paper feed paper Photosensor + Actuator loop mechanism*2 + clutch Horizontal convey- Horizontal conveyance ance (Tray 1) roller /L, /R MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-J-8 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-J-8 ADDITION...
  • Page 107 In this way paper skew is corrected. Pre-registration roller Paper feed PS/1(PS1), /2 (PS2) Feed roller Paper feed roller 7272ma2006 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-J-9 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-J-9 ADDITION...

  • Page 108: First Paper Feed Control

    MC1/2) (1) ON timing After a specified time from MC3/5 (paper feed MC/1/2) turning ON. (2) OFF timing When PS1/7 (paper feed/1/2) is turned OFF. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-J-10 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-J-10 ADDITION...
  • Page 109 MC5 drive control signal (tray 2) [L]: MC5 ON [H]: MC5 OFF (4) T2PREMC_DRV (PRCB to MC6) MC6 drive control signal (tray 2) [L]: MC6 ON [H]: MC6 OFF MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-J-11 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-J-11 ADDITION...

  • Page 110: Horizontal Conveyance Control (Tray 1)

    When the restart of MC3 (feed MC/1) is turned (2) ON timing for the second paper After a specified time when MC1 (registration MC) is turned ON. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-J-12 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-J-12 ADDITION...
  • Page 111 MC15 drive control signal [L]: MC15 ON [H]: MC15 OFF (2) HFMC_R (PRCB to MC16) MC16 drive control signal [L]: MC16 ON [H]: MC16 OFF MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-J-13 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-J-13 ADDITION...

  • Page 112: Paper Up Drive Control

    The up/down plate in the tray remaining paper level when it lowers below about is lowered mechanically by its own weight. 10%. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-J-14 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-J-14 ADDITION...

  • Page 113: No Paper Detection Control

    [H]: Paper exists in tray. (2) T2_0PS (PS9 to PRCB) No paper detection signal (tray 2) [L]: Paper does not exist in tray. [H]:Paper exists in tray. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-J-15 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-J-15 ADDITION...
  • Page 114 Blank page...

  • Page 115: Composition

    TRAY 3 PAPER FEED UNIT (7155/7165) TRAY 3 PAPER FEED UNIT (7155/7165) [1] Composition Drive pulley (for wire C/D) Tray up drive motor/3 Feed roller (M18) Paper feed roller Double feed prevention roller Side guide Side guide Drive pulley (for wire A/B)
  • Page 116 TRAY 3 PAPER FEED UNIT (7155/7165) b) Lowering of tray *3 First paper feed paper loop mechanism When the paper feed tray is pulled out, the When paper feed starts, paper is fed to the pre- coupling shaft of the tray is disengaged from...
  • Page 117 TRAY 3 PAPER FEED UNIT (7155/7165) [3] First Paper Feed Control MC24V_1 24V1 T3FEED_DRV P.GND S.GND MC24V_1 Tray 3 T3PREMC_DRV 24V2 P.GND T3PREM_PS PS13 DCPS SGND FEEDM_CONT FEEDM_CLK FEEDM_F/E FEEDM_EM P.GND PRCB The 1st paper feed from tray 3 takes place as the 1.
  • Page 118 TRAY 3 PAPER FEED UNIT (7155/7165) 2. Signals PRCB input signals (1) T3PREM_PS (PS13 to PRCB) Paper passage detection signal (tray 3) [L]: Detected. [H]: Not detected. b. PRCB output signals (1) T3FEED_DRV (PRCB to MC7) MC7 drive control signal (tray 3)
  • Page 119 TRAY 3 PAPER FEED UNIT (7155/7165) [4] Paper Up Drive Control 24V1 PS14 TIUP_PS P.GND SGND Tray 3 S.GND PS16 TIRM_PS DCPS SGND T3RISEM_24 T3RISEM_D PRCB Paper stacked in the tray is pushed up by trans- b. Paper up drive timing...

  • Page 120: Paper Size Detection Control

    TRAY 3 PAPER FEED UNIT (7155/7165) 2. Signals [5] Paper Size Detection Control PRCB input signals (1) T3UP_PS (PS14 to PRCB) Tray 3 Paper upper limit detection signal T3SIZE_S_PS PS17 [L]: Not detected. SGND [H]: Detected. T3SIZE_L_PS PS18 (2) T3RM_PS (PS16 to PRCB)

  • Page 121: No Paper Detection Control

    TRAY 3 PAPER FEED UNIT (7155/7165) 2. Signals [6] No Paper Detection Control PRCB input signals (1) T3SIZE_S_PS (PS17 to PRCB) Paper size detection signal T3_0PS PS15 SGND [L]: Paper does not exist. [H]: Paper exists. (2) T3SIZE_L_PS (PS18 to PRCB) Paper size detection signal S.GND...
  • Page 122 Blank page...

  • Page 123: Bypass Tray

    BYPASS TRAY BYPASS TRAY [1] Composition Up/down motor/BP (M20) By-pass paper feed roller By-pass feed roller By-pass double feed prevention roller Loop roller By-pass tray [2] Mechanisms *1 Paper lift-up The up/down motor/BP (M20) drives the paper Mechanism Method up/down plate via gears. Paper is automatically First paper feed Bypass feed roller pushed up to the paper feed position, when the...

  • Page 124: First Paper Feed Control

    BYPASS TRAY *2 Paper size detection [3] First Paper Feed Control The paper size is automatically detected by the following three sensors: • Lateral: Paper size detection VR/BP (VR5) 24V2 P.GND • Longitudinal: Paper size PS/1, 2-BP (PS31/ S.GND Paper size VR/BP (VR5) PS36 LOOP_PS S.GND...

  • Page 125: Paper Up/Down Control

    BYPASS TRAY b. PRCB output signals [4] Paper Up/Down Control (1) A and /A (PRCB to M6) A-phase drive control pulse signal for M6 (2) B and /B (PRCB to M6) B-phase drive control pulse signal for M6 BPUDM_A PS34 BPUP_PS BPUDM_B SGND...

  • Page 126: Paper Size Detection Control

    BYPASS TRAY 2. Signals [5] Paper Size Detection Control PRCB input signals (1) BPUP_PS (PS34 to PRCB) S.GND BPSIZE_S_PS PS31 Paper upper limit position detection signal (by- SGND DCPS pass tray) BPSIZE_L_PS PS32 [L]: Not detected. SGND [H]: Detected. BPSIZE_VR (2) BPDN_PS (PS35 to PRCB) PRCB Paper lower limit position detection signal (by-...

  • Page 127: No Paper Detection Control

    BYPASS TRAY [6] No Paper Detection Control S.GND BP_OPS PS33 SGND DCPS PRCB No paper in the tray is detected by PS33 (no paper/BP) which is controlled by PRCB (printer control board). 1. Operation When the tray becomes empty, PS33 (no paper/ BP) is turned OFF, displaying a message on the LCD via OB1 (operation board/1).
  • Page 128 Blank page...

  • Page 129: Vertical Conveyance Section

    Conveyance drive Vertical conveyance roller (upper): Paper feed motor (M1) Vertical conveyance roller (middle): Paper feed motor (M1) Vertical conveyance roller (lower): Paper feed motor (M1) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-M-1 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-M-1 REPLACEMENT...

  • Page 130: Vertical Conveyance Control

    [L]: Open 1. Operation [H]: Closed Paper fed from tray 1 (7155/7165) or tray 1 or 2 b. PRCB output signals (7255/7272) is then fed to the second paper feed (1) VFMC1_DRV (PRCB to MC11) unit directly without passing through vertical con- MC11 drive control signal veyance rollers.

  • Page 131: Adu

    Paper exit fan/F (FM6) Reverse/exit roller rotation knob Conveyance motor (M5) ADU deceleration MC (MC2) ADU drive board (ADUDB) Registration roller rotation knob ADU conveyance MC (MC13) 7155/7165 Registration MC (MC1) Paper dust cleaning brush Paper dust cleaning brush Mis-centering PS (PS70) 7272ma2012...

  • Page 132: Mechanisms

    [2] Mechanisms Mechanisms Method Second paper feed paper loop *1 Loop roller (trays 1-3/LCT), Feed roller (bypass tray), ADU pre-registration roller (ADU) Image position correction *2 Image position is corrected according to the information detected by PS43 (leading edge) and PS70 (paper mis- centering).
  • Page 133 *1 Second paper feed paper loop mechanism A paper loop is formed before the registration <Trays 1-3/LCT> roller to correct mis-centering of paper during second paper feed. The paper loop is formed by Loop formation point pushing the fed paper against the registration Feed roller (LCT) roller for the prescribed time.
  • Page 134 and the mis-centering PS (PS70) is used to cor- *5 Reverse/exit paper path selection rect the write position in the main scanning direc- The reverse/exit selection gate in the fixing unit tion. determines whether the paper is to be ejected *3 Second paper feed auxiliary mechanism straight or reversed and ejected.
  • Page 135 Fixing roller (upper) Reverse/exit selection gate Fixing roller (upper) Fixing exit PS (PS30) Fixing roller (lower) Exit roller Fixing roller (lower) Decurler roller Fixing exit PS (PS30) Exit roller Reverse/exit selection gate ADU gate Main body exit roller Reverse/exit roller Paper reverse PS (PS42) ADU paper conveyance Reverse/exit gate...
  • Page 136 (M9) are switched as shown below according to the paper type selected in the key operator Reverse/exit PS (PS46) mode. Paper type Linear speed ADU pre-registration roller 185 mm/s (7155/7165) Thick paper 172.5 mm/s (7255/7272) 280 mm/s (7155/7255) Others 320 mm/s (7165) 345 mm/s (7272)

  • Page 137: Loop/Second Paper Feed Control

    [3] Loop/Second Paper Feed Control LOOP PS PS36 S.GND PGND START/STOP CW/CCW IO DTXD IO DCLK ADU LATCH PGND IO UCLK +24V REQ1 IO URXD MC24V ACK1 ERR OUT1 2ND MC 2NDM CLK REG PS PS43 EDGE PS S.GND PS44 2ND PS S.GND PRCB...
  • Page 138 A contact image sensor is used as PS70 (paper (5) DEF_CLK (ADUDB to PS70) mis-centering). The paper edge position is PS70 (paper mis-centering) drive clock signal detected by paper mis-centering sensors. Based (6) DEF_LED (ADUDB to PS70) on the edge position information, the image write PS70 (paper mis-centering) LED control signal position is shifted to correct mis-centering and (7) CW/CCW (ADUDB to M5)

  • Page 139: Paper Conveyance Control

    [4] Paper Conveyance Control 2. Signals Input signals (1) MAINEXIT_PS (PS37 to PRCB) MAINEXIT PS PS37 Main body exit section paper passage detection S.GND IO DTXD signal IO DCLK ADU LATCH [L]: Detected. IO UCLK REQ1 IO URXD SUC FAN [H]: Not detected.

  • Page 140: Paper Reverse And Exit Control

    [5] Paper Reverse and Exit Control P.GND MAINM CONT MAINM CLK MAINM F/R MAINM EM PS30 FIXEXIT PS S.GND PS37 MAINEXIT PS S.GND IO DTXD IO DCLK ADU LATCH IO UCLK REQ1 IO URXD ACK1 ERR OUT1 2NDM CLK PS42 DECUR PS S.GND PRCB...
  • Page 141 1. Operation quently turns OFF, M8 and M9 start rotating in Reverse/exit selection gate control the opposite direction at a high speed, feeding The reverse/exit selection gate is driven by SD7 the paper in the paper exit direction. (reverse gate). Normally, the reverse/exit selec- When PS45 (ADU paper reverse) detects the tion gate is open to guide paper to the reverse/ trailing edge of paper and consequently turns...
  • Page 142 starts rotating at a low speed to even up the 2. Signals edges of paper in the exit tray. When PS37 Input signals (paper exit) is turned OFF at detection of the trail- (1) FIXEXIT_PS (PS30 to PRCB) ing edge of paper, M7 starts rotating at a high Detection signal of paper passage at fixing unit speed again, proceeding to eject the next sheet exit...

  • Page 143: Adu Paper Conveyance/Feed Control

    [6] ADU Paper Conveyance/Feed Control PGND START/STOP CW/CCW PGND +24V PS41 ADU JAM S.GND ADU REV PS45 S.GND IO DTXD IO DCLK ADU LATCH IO UCLK REV PS PS46 REQ1 S.GND IO URXD ACK1 ERR OUT1 PS47 HD PS 2NDM CLK S.GND PRCB PS48...
  • Page 144 1. Operation 2. Signals ADU conveyance control Input signals The paper fed from the ADU paper reversal sec- (1) ADU_JAM (PS41 to ADUSDB) tion is fed to ADU pre-registration rollers at a high Detection signal of paper passage from exit of speed by transmitting the drive force of M5 (con- ADU conveyance roller 1 veyance) to ADU conveyance rollers 1 to 4.

  • Page 145: Fixing Unit

    FIXING UNIT FIXING UNIT [1] Composition Fixing heater lamp/2 (L3) Cleaning web wind-up shaft Pressure roller Cleaning web unwinding shaft Fixing claw unit (upper) Fixing claw (upper) Fixing unit cover (upper) Cleaning web Fixing roller (upper) Fixing heater lamp/1 (L2) Fixing heater lamp/3 Restriction shaft (L4)
  • Page 146 FIXING UNIT *1 Fixing heater lamps *3 Decurler Two halogen lamps are used for the fixing upper The paper guided by the reverse/exit selection roller and one halogen lamp is used for the fixing gate is decurled while it passes between the lower roller to reduce the warm-up time and decurler roller and restriction shafts.

  • Page 147: M16 (Web Drive) Control

    FIXING UNIT [3] M16 (Web Drive) Control 2. Signals PRCB input signal (1) FIXEXIT_PS (PS30 to PRCB) 24VDC Detection signal of passage of paper at fixing unit FIXEXIT_PS PS30 PGND S.GND 5VDC exit SGND MC24V_2 [L]: Detected. DCPS WEBSC_DRV [H]: Not detected. PRCB b.

  • Page 148: Fixing Temperature Control

    FIXING UNIT [4] Fixing Temperature Control TRC1 AC(H) FIXHT1_CONT TRC2 FIXHT2_CONT TRC3 FIXHT3_CONT 24VDC S.GND AC(C) MAINRL_CONT DCPS TH1+ TH1- TH2+ TH2- PRCB The fixing roller (upper) is heated by L2 (fixing The operating temperature of the thermostats heater lamp 1) and L3 (fixing heater lamp 2) and are as follows: the fixing roller (lower) is heated by L4 (fixing TS1: Opens at 356°F...
  • Page 149 FIXING UNIT b. PRCB output signals (1) FIXHT1_CONT (PRCB to DCPS) L2 drive control signal [L]: L2 ON [H]: L2 OFF (2) FIXHT2_CONT (PRCB to DCPS) L3 drive control signal [L]: L3 ON [H]: L3 OFF (3) FIXHT3_CONT (PRCB to DCPS) L4 drive control signal [L]: L4 ON [H]: L4 OFF...
  • Page 150 Blank page...

  • Page 151: Other Kinds Of Control

    OTHER KINDS OF CONTROL OTHER KINDS OF CONTROL [1] Parts Energized When SW1 (Main Power) is OFF In the case of the 7155/7165 CBR1 AC(L) COIL2 12V1 (Europe DCPS only) COIL1 CBR2 AC(N) (Europe only) TRANSFORMER OPTION In the case of the 7255/7272...
  • Page 152 Internal heaters HTR1 (heater/1), HTR2 (heater/2), and HTR3 (drum heater (spare parts)) are energized in syn- chronization with ON or OFF operation of SW1 (main power). (7155/7165) HTRs 1 to 3 are energized by turning ON/OFF SW3 (heater switch). (7255/7272) MODEL...
  • Page 153 Blank page...

  • Page 154: Parts That Operate When Sw1

    The DC voltage output from DCPS (DC power supply unit) is controlled according to the com- bination of levels of two signals. REM/2 REM/3 Output 5V1,12V1 5V1,12V1,5V2,12V2, 24V1,-5V1 5V1,12V1,5V2,12V2, 24V1,-5V1,24V2 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-P-4 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-P-2 REPLACEMENT...

  • Page 155: Cooling Fan Control

    (power supply cooling) is driven by DCPS (DC speed for the specified time according to the power supply unit). temperature in the machine, then starts rotat- ing at a low speed. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-P-5 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-P-3 REPLACEMENT...
  • Page 156 Turned ON when the copying is started. FM8 (main cooling/2) (2) OFF timing Turned OFF when M7 (paper exit) is turned ON. Fan air flow Developing suction fan FRONT 7272ma2016 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-P-6 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-P-4 REPLACEMENT...
  • Page 157 (9) FIXFAN-D (PRCB to FM8) signal FM8 (main cooling/2) ON/OFF control signal [L]: FM9 is normal. [L]: FM8 ON [H]: FM9 is abnormal. [H]: FM8 OFF MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-P-7 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-P-5 REPLACEMENT...

  • Page 158: Operation Panel Control

    CPU of OB1 at the command of the LCD directly. PAKB is controlled by OB1 ICB (image control board). (operation board/1). MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-P-8 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-P-6 REPLACEMENT...
  • Page 159 OTHER KINDS OF CONTROL 2. Signals Input signals (1) S_IN2 (OB1 to ICB) Serial data which informs ICB (image control board) of the operation state of OB1 (operation board/1). (2) /CTS2 (OB1 to ICB) Signal which indicates that data can be sent from OB1 (operation board/1) to ICB (image control board) When this signal is at the high level ([H]), ICB...

  • Page 160: Counter Control

    OTHER KINDS OF CONTROL [5] Counter Control MC24V 3 C(T) TC DRV KEYC DRV S.GND C(K) KEYC SET MC24V 3 MAINEXIT PS PS37 S.GND S OUT2 S IN2 /RTS2 /CTS2 /DTR2 /DSR2 24V1 S.GND P.GND PRCB DCPS 2. Signals This machine has the following counters: C (T): Total counter PRCB input signals C (K): Key counter...

  • Page 161: Option Control

    FNS incorporates CB which exchanges only control data with PRCB (printer control board) of the main body. LCT, FNS, and HDD are powered by the DCPS (DC power supply unit). MODEL MANUAL REVISED EDITION DATE PAGE METHOD 2-P-11 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-P-9 REPLACEMENT...
  • Page 162 OTHER KINDS OF CONTROL <Functions and output timings of signals for copy vendors> Connector Pin No. Signal name Description Output timing Signal type DV24V Key counter power supply Always 24 V, 300 mA C(K) SIG Key counter connection rec- ognition C(K) GND Signal ground C(K) DRIVE Key counter signal count up 100-ms L-signal output...

  • Page 163: Disassembly/Assembly

    DISASSEMBLY/ASSEMBLY...
  • Page 164 This section explains how to disassemble and reassemble the machine. When disassembling and reassembling the machine, follow the precau- tions given below. 1. Be sure the power cord has been unplugged from the wall outlet. 2. The disassembled parts must be reassembled following the disas- sembly procedure in reverse unless otherwise specified.

  • Page 165: External Section

    EXTERNAL SECTION EXTERNAL SECTION [1] Replacing the Ozone Filter In the case of the 7255/7272 In the case of the 7155/7165 Caution: Be sure the power cord has been Caution: unplugged from the wall outlet. Be sure the power cord has been unplugged from the wall outlet.

  • Page 166: Replacing The Developing Suction Filter

    (3) Reinstall the above parts following the removal steps in reverse. Caution: When installing the developing suc- tion filter, the filter-supporting material should face the back of the machine. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-A-2 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-A-1-1 ADDITION...
  • Page 167 Blank page...

  • Page 168: Removing And Reinstalling The External Covers

    EXTERNAL SECTION [3] Removing and Reinstalling the (2) Remove seven screws to detach the left side cover. External Covers Caution: Left side cover Be sure the power cord has been Screw unplugged from the wall outlet. Procedure Screw (1) Remove fourteen screws to detach the rear cover.
  • Page 169 EXTERNAL SECTION (3) Loosen one screw and remove the developing (14) Remove the top cover (middle front) and top suction filter cover. cover (middle rear). (4) Loosen five screws and detach the right side Original stopper plate (rear) cover (upper). Shoulder screws Caution: The developing suction filter cover Top cover...

  • Page 170: Changing The Operation Panel Attachment Angle And Removing/Reinstalling

    EXTERNAL SECTION (15) Open the front right door and front left door. [4] Changing the Operation Panel (16) Remove one screw to remove the front open/ Attachment Angle and Removing/ close stopper. Reinstalling (17) Remove two screws to remove the front right Caution: door open/close hinge (lower) and front right Be sure the power cord has been...
  • Page 171 EXTERNAL SECTION (4) When changing the operation panel attachment (5) Remove the relay connectors (CN163, 164). angle, align the operation panel stopper with the Caution: Each relay connector consist of two stopper hole at the front side on the bottom of the male sides and one female side.

  • Page 172: Resetting The Circuit Breaker

    EXTERNAL SECTION [5] Resetting the Circuit Breaker (3) Turn over the circuit breaker assemblies and press the reset button at the center of each circuit Caution: breaker. Be sure the power cord has been (4) Reinstall the above parts following the removal unplugged from the wall outlet.

  • Page 173: Drive Section

    Screws (7) ward, release the lock, and then pull out the ribbon cable. Ribbon cable Screws (5) Screws (5) Screws (4) Lock lever 7272ma3002 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-B-1 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-B-1 REPLACEMENT...
  • Page 174 Image control board mounting plate Lock lever Conductive surface 7272ma3003 Subsequently, set back the lock lever in original position and lock the ribbon cable. Ribbon cable Lock lever 7272ma3004 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-B-2 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-B-1-1 ADDITION...
  • Page 175 Blank page...

  • Page 176: Removing And Reinstalling The Fixing Input Gear

    DRIVE SECTION (8) Remove three screws and remove the two fly- [2] Removing and Reinstalling the Fixing wheels. Input Gear Caution: Flywheels (2) Be sure the power cord has been unplugged from the wall outlet. Procedure (1) Open the image control bard mounting board. (2) Remove six screws and remove the fixing motor Screws (3) cover.

  • Page 177: Scanner Section

    Read position adjusting plate (right rear) Lens light blocking cover (3) Remove the connector (CN170) from the A/D converter board (ADB). In the case of the 7155/7165 Screws that CCD unit must not be removed Read position adjusting plate (left front)
  • Page 178 7272ma3032 Lock lever Subsequently, set back the lock lever in original position and lock the ribbon cable. Lock lever Ribbon cable 7272ma3031 Ribbon cable 7272ma3033 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-C-2 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-C-1-1 ADDITION...
  • Page 179 Blank page...

  • Page 180: Replacing The Exposure Lamp

    SCANNER SECTION (4) Remove two screws to remove the CCD unit. [3] Replacing the Exposure Lamp Caution1: Screws Be sure the power cord has been unplugged from the wall outlet. Caution2: Do not touch the exposure lamp with bare hands. Caution: Be sure to check the image after installing the exposure lamp.

  • Page 181: Removing And Reinstalling The Exposure Unit

    SCANNER SECTION [4] Removing and Reinstalling the (6) Move the exposure unit to the notch in the main body frame on the paper exit side. Exposure Unit (7) Remove two screws to detach the cord clamp Caution: (B). Be sure the power cord has been (8) Remove one screw to remove the ground termi- unplugged from the wall outlet.

  • Page 182: Installing The Optics Wire

    SCANNER SECTION b. Installation procedure [5] Installing the Optics Wire (1) Move the V-mirror unit toward the paper exit side, Caution: then insert the optics positioning jigs from the Be sure the power cord has been front to secure the V-mirror unit. Ensure that the unplugged from the wall outlet.
  • Page 183 SCANNER SECTION Four turns Four turns Rear Front Metal bead Five turns Five turns Metal bead Wire stopper Metal bead Metal bead Pulley 1 Exposure unit mounting piece Pulley 1 V-mirror pulley Wire stopper V-mirror unit Exposure unit mounting piece Pulley 3 Drive pulley Wire stopper...

  • Page 184: Cleaning The Slit Glass And Platen Glass

    (4) Remove four screws from the scanner motor Slit glass (M11), then remove the scanner belt and the Screw scanner motor. (4) Reinstall the above parts following the removal steps in reverse. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Nov. 2001 REPLACEMENT 3-C-6...
  • Page 185 (10) Follow the disassembly procedures in reverse Pulley order to install. (6) Hook the spring scale on the upper hole of the scanner motor (M11). Spring scale Upper hole MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Nov. 2001 3-C-7 ADDITION...
  • Page 186 Blank page...

  • Page 187: Write Section

    WRITE SECTION WRITE SECTION [1] Removing and Reinstalling the Write Unit In the case of the 7155/7165 Warning: (1) Do not energize the write unit when it is not in the correct position. (2) Never remove the write unit cover and the polygon unit cover.
  • Page 188 (3) Remove eleven screws to detach the fan holder (6) Reinstall the above parts following the removal assembly. steps in reverse. Screws Fan folder assembly Relay connector Screws (CN338) 7272ma3006 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-D-2 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-D-1-1 ADDITION...
  • Page 189 Blank page...

  • Page 190: Cleaning The Dust-Proof Glass

    WRITE SECTION [2] Cleaning the Dust-Proof Glass Caution: Be sure the power cord has been unplugged from the wall outlet. Procedure (1) Remove the write unit. (2) Clean the dust-proof glass at the bottom of the write unit with cleaning pad and blower brush. Write unit Dust-proof glass (3) Reinstall the above parts following the removal...

  • Page 191: Drum Unit

    Caution: To install the coupling, see "[2] Install- to release the crimp of the cleaning blade. ing the Coupling." MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-E-1 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-E-1 REPLACEMENT...

  • Page 192: Installing The Coupling

    DRUM UNIT [2] Installing the Coupling (4) Turn the head of the drum coupling clockwise so that the flange section on the drum shaft coupling Caution: is flush. Be sure the power cord has been unplugged from the wall outlet. Procedure (1) Clean the outer surface of the drum coupling and drum shaft coupling with drum cleaner and...

  • Page 193: Removing, Cleaning, And Reinstalling The Drum

    DRUM UNIT [3] Removing, Cleaning, and Procedure (1) Remove the drum unit from the main body. Reinstalling the Drum (2) Remove the charging corona unit, developing Caution: unit, cleaning blade, and toner guide roller from Be sure the power cord has been the drum unit.

  • Page 194: Removing And Reinstalling The Separation Claws And Separation Claw Solenoid

    DRUM UNIT [4] Removing and Reinstalling the (5) Remove the stop ring, slide the shaft, and remove the three separation claws. Separation Claws and Separation Caution1: Clean the shaft with drum cleaner Claw Solenoid and a cleaning pad when installing. Caution: The separator claws cannot move Be sure the power cord has been...
  • Page 195 DRUM UNIT (7) Remove two screws and detach the separation [Reference] claw SD (SD1). When removing the separation claw solenoid (Normally, it should not be removed except when replacing the solenoid). Separation claw SD (SD1) (1) Install the separation claw unit to the drum unit.

  • Page 196: Removing And Reinstalling The Toner Control Sensor Board

    DRUM UNIT [5] Removing and Reinstalling the Toner Caution: When installing the toner control sen- sor board, tighten the screws pulling it Control Sensor Board up until stoppers. Caution: Be sure the power cord has been unplugged from the wall outlet. Procedure (1) Remove the drum unit from the main body.

  • Page 197: Corona Unit

    CORONA UNIT CORONA UNIT [1] Screws That Must Not be Removed [2] Removing and Reinstalling the Five screws securing the transfer entrance Charging Corona Unit guide plate Caution: Be sure the power cord has been Screws that must not be removed unplugged from the wall outlet.

  • Page 198: Removing And Reinstalling The Charge Control Plate

    CORONA UNIT [3] Removing and Reinstalling the (3) Remove the spark arrester plates (front and rear). Charge Control Plate Caution: Spark arrester plate (front) Be sure the power cord has been unplugged from the wall outlet. Spark arrester plate (rear) Procedure (1) Remove the charging corona unit.

  • Page 199: Removing And Reinstalling The Charging Wire Cleaning Unit

    CORONA UNIT [5] Removing and Reinstalling the [6] Removing and Reinstalling the PCL Charging Wire Cleaning Unit Caution: Be sure the power cord has been Caution: unplugged from the wall outlet. Be sure the power cord has been Procedure unplugged from the wall outlet. (1) Remove the charging corona unit.
  • Page 200 Caution: When the urethane sheet is peeled off from PCL, be sure to paste it again. (7272/7255) Charging corona unit Urethane sheet 7272ma3008 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-F-4 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-F-3-1 ADDITION...
  • Page 201 Blank page...

  • Page 202: Cleaning The Charging Corona Unit/Pcl

    CORONA UNIT [7] Cleaning the Charging Corona Unit/ [8] Removing and Reinstalling the Transfer/Separation Corona Unit Caution: Caution: Be sure the power cord has been Be sure the power cord has been unplugged from the wall outlet. unplugged from the wall outlet. Procedure Procedure (1) Remove the charging corona unit.

  • Page 203: Removing And Reinstalling The Plunger Prevention Plate

    CORONA UNIT [9] Removing and Reinstalling the [10] Replacing the Transfer/Separation Plunger Prevention Plate Wires and Transfer/Separation Wire Cleaning Block Caution: Be sure the power cord has been Caution: unplugged from the wall outlet. Be sure the power cord has been Procedure unplugged from the wall outlet.
  • Page 204 CORONA UNIT (6) Release and remove three wires from each (7) Turn the transfer/separation corona unit upside cleaning block. down, remove the stop rings, and remove the transfer wire cleaning block and separation wire Caution: Be careful not to drop and lose the cleaning block from the front side.

  • Page 205: Removing And Reinstalling The Tsl Unit

    (4) Remove the three screws and remove the TSL unit. TSL unit Relay connector (CN463) Screws 7272ma3034 (5) Reinstall the above parts following the removal steps in reverse. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-F-9 3-F-7 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-F-7 REPLACEMENT...
  • Page 206 Blank page...

  • Page 207: Developing Unit

    DEVELOPING UNIT DEVELOPING UNIT [1] Screws That Must Not be Removed [2] Removing and Reinstalling the Procedure Developing Unit (1) Two screws securing the toner transfer regula- Caution: tion plate. Be sure the power cord has been (2) One screw securing the magnet angle adjusting unplugged from the wall outlet.

  • Page 208: Replacing The Developer

    (3) Release the hook of the developing unit cover and remove it upward. Developing unit cover Developing unit stopper roller Hooks (Same as on the opposite side) Hooks MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-G-2 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-G-2 REPLACEMENT...

  • Page 209: Cleaning The Developing Unit Bias Shaft

    DEVELOPING UNIT (8) Rotate the developing gear counterclockwise to [4] Cleaning the Developing Unit Bias check that the developer bristles along the entire Shaft length of the developing sleeve. Caution: Be sure the power cord has been Developing sleeve unplugged from the wall outlet. Procedure Developing unit (1) Draw out the drum unit from the main body.
  • Page 210 Blank page...

  • Page 211: Toner Supply Unit

    TONER SUPPLY UNIT TONER SUPPLY UNIT [1] Replacing and Cleaning the Toner Cartridge Procedure (1) Open the toner supply door and pull the toner supply unit forward. Toner supply door Toner supply unit (2) Remove the toner cartridge. (3) After removing the toner cartridge, clean the area around the toner cartridge insertion hole with a cleaning pad.
  • Page 212 Blank page...

  • Page 213: Cleaning/Toner Recycle Unit

    Caution: After replacing the cleaning blade, be sure to perform Blade Setting Mode Adjustment in the 36 mode. (To pre- vent the blade from peeling.) Cleaner cover MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-I-1 7155/7165 SERVICE HANDBOOK May 2002 REPLACEMENT...

  • Page 214: Removing And Reinstalling The Toner Guide Roller (Tgr)

    Caution7: When installing a toner guide roller, be sure to enter mode 25 and select "Copy Count by Parts to be Replaced" to reset toner collection roller assembly counter. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-I-2 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-I-2 REPLACEMENT...
  • Page 215 CLEANING/TONER RECYCLE UNIT (8) Remove the toner guide roller. Screw Positioning part Toner guide roller In the case of the 7155/7165 Positioning part Screw Power supply pin Cleaner idle gear In the case of the 7255/7272 Cleaner idle gear Positioning part...
  • Page 216 Blank page...

  • Page 217: Paper Feed Units Of Trays 1 And 2 (7155/7165)

    PAPER FEED UNITS OF TRAYS 1 AND 2 (7155/7165) PAPER FEED UNITS OF TRAYS 1 AND 2 (7155/7165) [1] Removing and Reinstalling the Paper [2] Removing and Reinstalling the Paper Feed Unit Feed Trays 1 and 2 Caution: Warning: Be sure the power cord has been When removing the tray, stand in a proper unplugged from the wall outlet.

  • Page 218: Removing And Reinstalling The Paper Feed Roller And Feed Roller Rubber

    PAPER FEED UNITS OF TRAYS 1 AND 2 (7155/7165) [3] Removing and Reinstalling the Paper [4] Removing and Reinstalling the DF Feed Roller and Feed Roller Rubber Prevention Roller Rubber Procedure Procedure (1) Remove the paper feed unit. (1) Remove the paper feed unit.

  • Page 219: Replacing The Pre-Registration And Feed Clutches (Mcs)

    PAPER FEED UNITS OF TRAYS 1 AND 2 (7155/7165) [5] Replacing the Pre-Registration and Feed Clutches (MCs) Procedure (1) Remove the paper feed unit. (2) Remove the four connectors (CN810, 811, 830, 831). (3) Remove the stop ring to detach the pre-registra- tion MC/1/2 (MC4/6) and feed MC/1/2 (MC3/5).

  • Page 220: Replacing The Wires

    PAPER FEED UNITS OF TRAYS 1 AND 2 (7155/7165) [6] Replacing the Wires Caution1: After replacing or reinstalling the wires, manually rotate the up/down drive shaft to check that the tray moves up and down smoothly. Caution2: Be sure to install the wires so that they do not cross or ride over each other.
  • Page 221 PAPER FEED UNITS OF TRAYS 1 AND 2 (7155/7165) (3) Remove the front and rear wires according to steps 1 to 7 below. 2, 4 Remove the E-ring to slide out Remove the E-ring to detach the drive pulley. the wire restraining cover and pulley.
  • Page 222 PAPER FEED UNITS OF TRAYS 1 AND 2 (7155/7165) Wire Lengths 182.8±1 mm (Tray 1, 2) Wire A, C 473.1±1 mm (Tray 1, 2) Wire B, D Installing Wires Install the pulley, pass Install the pulley, pass Install the wires C and D from...

  • Page 223: Paper Feed Units Of Trays 1 And 2 (7255/7272)

    "[1] Removing and Reinstalling the Paper remove all paper before removing the tray. Feed Unit" of PAPER FEED UNITS OF TRAY 1 Caution: and 2 (7155/7165). Be sure the power cord has been unplugged from the wall outlet. Procedure (1) Draw out paper feed tray 1.

  • Page 224: Removing And Reinstalling The Paper Feed Tray 2

    (3) Remove five screws and remove the LCT cover Tray 1 Screws 7272ma3011 (5) Reinstall the above parts following the removal Screws steps in reverse. LCT cover /R Screws 7272ma3012 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-J-8 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-J-8 ADDITION...

  • Page 225: Removing And Reinstalling The Paper Feed Roller And Feed Roller Rubber

    Paper feed roller unit Bearing Stop ring (4) Remove the two stop rings from the paper feed roller unit to detach the paper feed roller and feed roller. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-J-9 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-J-9 ADDITION...
  • Page 226 The contents here shall be in accordance with Paint mark Paper feed roller rubber the "[4] Removing and Reinstalling the Double Feed Prevention Roller Rubber" of PAPER FEED UNITS OF TRAY 1 AND 2 (7155/7165). Paper feed roller Paint mark Feed roller rubber Stop ring...
  • Page 227 "[5] Replacing the Pre-registration and Feed (1) Remove the vertical conveyance section. (See Clutches (MCs)" of PAPER FEED UNITS OF "VERTICAL CONVEYNACE SECTION") TRAY 1 and 2 (7155/7165). (2) Draw out the horizontal conveyance section and tray 2. (3) Remove two relay connectors (CN902, 903).

  • Page 228: Replacing The Wires

    (2) Remove two screws for each to remove the wire cover (front) and wire cover (rear). Screws Wire cover (rear) Wire cover (front) Screws 7272ma3016 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-J-12 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-J-12 ADDITION...
  • Page 229 9. Remove the E-ring, slide the drive pulley outward, 1. Remove the E-ring and bearing to detach the and remove the wire A (black) from the drive shaft. gear assembly. 7272ma3017 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-J-13 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-J-13 ADDITION...
  • Page 230 5. Remove the E-ring, slide the drive pulley outward, and remove the wire C (black) from the drive shaft. and remove the wire D (white) from the drive shaft. 7272ma3018 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-J-14 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-J-14 ADDITION...
  • Page 231 1mm(Tray 2) Wire A, C 391.7 1mm(Tray 1) 329.2 1mm(Tray 2) Wire B, D 7272ma3019 <Installing Wires> Reinstall the wires following the removal steps in reverse. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-J-15 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-J-15 ADDITION...
  • Page 232 Blank page...

  • Page 233: Paper Feed Unit Of Tray 3 (7155/7165)

    PAPER FEED UNIT OF TRAY 3 (7155/7165) PAPER FEED UNIT OF TRAY 3 (7155/7165) [1] Removing and Reinstalling the Paper [2] Removing and Reinstalling Paper Feed Unit Feed Tray 3 Caution: Warning: Be sure the power cord has been When removing the tray, stand in a proper unplugged from the wall outlet.

  • Page 234: Removing And Reinstalling The Paper Feed Roller And Feed Roller Rubber

    PAPER FEED UNIT OF TRAY 3 (7155/7165) [3] Removing and Reinstalling the Paper [4] Removing and Reinstalling the DF Feed Roller and Feed Roller Rubber Prevention Roller Rubber Procedure Procedure (1) Remove the paper feed unit. (1) Remove the paper feed unit.

  • Page 235: Replacing The Pre-Registration And Feed Clutches (Mcs)

    PAPER FEED UNIT OF TRAY 3 (7155/7165) [5] Replacing the Pre-Registration and Feed Clutches (MCs) Procedure (1) Remove the paper feed unit. (2) Remove two connectors (CN850, 851). (3) Remove two stop rings to detach the pre-regis- tration MC/3 (MC8) and feed MC/3 (MC7).

  • Page 236: Replacing The Wires

    PAPER FEED UNIT OF TRAY 3 (7155/7165) [6] Replacing the Wires Caution1: After replacing or reinstalling the wires, manually rotate the up/down drive shaft to check that the tray moves up and down smoothly. Caution2: Be sure to install the wires so that they do not cross or ride over each other.
  • Page 237 PAPER FEED UNIT OF TRAY 3 (7155/7165) (5) Remove the front and rear wires according to steps 1 to 7 below. 2, 4 Remove two E-rings to slide out the Remove the E-ring to detach drive pulley. the wire restraining cover and pulley.
  • Page 238 PAPER FEED UNIT OF TRAY 3 (7155/7165) Wire Lengths 298.9±1 mm (Tray 3) Wire A, C 589.2±1 mm (Tray 3) Wire B, D Installing Wires Install the pulley, pass Install the pulley, pass Install the wires C and D from...

  • Page 239: Paper Feed Unit Of Tray 3 And

    "[1] Removing and Reinstalling the Paper remove all paper before removing the tray. Feed Unit" of PAPER FEED UNITS OF TRAY 1 Caution: AND 2 (7155/7165). Be sure the power cord has been unplugged from the wall outlet. Procedure (1) Draw out paper feed tray 3.

  • Page 240: Removing And Reinstalling The Paper Feed Roller And Feed Roller Rubber

    "[4] Removing and Reinstalling the Double Feed Roller and Feed Roller Rubber" of PAPER Feed Prevention Roller Rubber" of PAPER FEED FEED UNITS OF TRAY 1 AND 2 (7255/7272). UNITS OF TRAY 1 AND 2 (7155/7165). MODEL MANUAL REVISED EDITION...

  • Page 241: Replacing The Pre-Registration And Feed Clutches (Mcs)

    The contents here shall be in accordance with the "[6] Replacing the Wires" of PAPER FEED The contents here shall be in accordance with UNITS OF TRAY 1 and 2 (7155/7165). the "[5] Replacing the Pre-registration and Feed Clutches (MCs)" of PAPER FEED UNITS OF TRAY 1 and 2 (7155/7165).
  • Page 242 Blank page...

  • Page 243: Bypass Feed Tray

    Caution1: Check that the orientation of the roller is correct when installing. Caution2: Check that no grease or the like remains on the roller. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-L-1 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-L-1 REPLACEMENT...

  • Page 244: Roller Rubber

    BYPASS FEED TRAY [3] Replacing the DF Prevention Roller (6) Reinstall the above parts following the removal steps in reverse. Rubber Caution1: Check that the orientation of the dou- Procedure ble feed prevention roller is correct (1) Remove the bypass feed tray and place the tray when installing.

  • Page 245: Vertical Conveyance Section

    VERTICAL CONVEYANCE SECTION VERTICAL CONVEYANCE SECTION [1] Removing/Reinstalling the Vertical [2] Removing/Reinstalling the Vertical Conveyance Section Conveyance MC (MC11, MC12) Caution: Caution: Be sure the power cord has been Be sure the power cord has been unplugged from the wall outlet. unplugged from the wall outlet.
  • Page 246 Blank page...

  • Page 247: Revised Edition Date

    ADU UNIT [1] Drawing Out and Reinstalling the [2] Cleaning the Paper Dust Removing ADU Stand Brush In the case of the 7155/7165 Warning: The interlock which is turned OFF when Caution: the front right or left door opens or closes...
  • Page 248 Caution: When installing, align the projections on the paper dust removing brush with Second paper feed unit Projections the positioning holes on the second paper feed unit. 7272ma3022 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-N-2 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-N-1-1 ADDITION...
  • Page 249 Blank page...

  • Page 250: Removing And Reinstalling The Registration Mc (Mc1)

    ADU UNIT [3] Cleaning the Paper Mis-Centering PS [4] Removing and Reinstalling the (PS70)/Leading Edge PS (PS43) Registration MC (MC1) Warning: Warning: The interlock which is turned OFF when The interlock which is turned OFF when the front right or left door opens or closes the front right or left door opens or closes should never be turned ON forcibly with should never be turned ON forcibly with...
  • Page 251 (shown below) of the CN422 connector. (6) Loosen two hexagon socket head screws. (7) Remove the screw to detach the clutch fixing member. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-N-5 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-N-3 REPLACEMENT...

  • Page 252: Removing And Reinstalling The Second Paper Feed Unit

    Be sure to remove only the male side (shown below) of the connector. Registration MC (MC1) Relay connector (CN420) Relay connector (CN422) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-N-6 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-N-3-1 ADDITION...
  • Page 253 Blank page...

  • Page 254: Cleaning The Registration Ps (Ps44)

    ADU UNIT (4) Remove five screws to remove the second paper [6] Cleaning the Registration PS (PS44) feed unit. Warning: The interlock which is turned OFF when Screws Screws the front right or left door opens or closes should never be turned ON forcibly with the ADU stand drawn out.

  • Page 255: Removing And Reinstalling The Registration Roller

    (6) Remove the two E-rings (one at the left and the other at the right) and one bearing from the reg- Registration Roller istration roller. In the case of the 7155/7165 Warning: The interlock which is turned OFF when Bearing...
  • Page 256 (7) Remove the two bearings (one at the left and the steps in reverse. other at the right) from the registration roller. Bearing Registration E-ring roller E-ring Bearing Bearing E-ring 7272ma3028 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-N-10 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-N-5-1 ADDITION...
  • Page 257 Blank page...

  • Page 258: Removing And Reinstalling The Pre-Transfer Roller

    ADU UNIT [8] Removing and Reinstalling the (4) Remove the E-ring to remove the pre-transfer roller from the shaft. Pre-Transfer Roller Warning: Caution: When reinstalling, pay attention to the The interlock which is turned OFF when position of the E-ring. the front right or left door opens or closes should never be turned ON forcibly with Pre-transfer roller...

  • Page 259: Cleaning The Adu Paper Reverse Ps (Ps45)/Reverse/Exit Ps (Ps46)

    ADU UNIT [9] Cleaning the ADU Paper Reverse PS (7) Remove two screws to remove the ADU reverse guide assembly. (PS45)/Reverse/Exit PS (PS46) Warning: Caution: When reinstalling, align the projection The interlock which is turned OFF when on the rear of the ADU reverse guide the front right or left door opens or closes assembly with the hole on the ADU should never be turned ON forcibly with...
  • Page 260 ADU UNIT (8) Remove the nine screws illustrated from the bot- (10) Lower the ADU bottom plate assembly straight tom of the ADU stand. down and remove the ADU guide cover. Front Screws Screws Paper exit side ADU bottom plate assembly ADU guide cover ADU bottom plate assembly (11) Clean the ADU paper reverse PS (PS45) and...

  • Page 261: Removing And Reinstalling The Adu Reverse Roller

    ADU UNIT [10] Removing and Reinstalling the ADU (9) Slide the ADU reverse roller to the upper side and then to the lower side to slide it out. Reverse Roller Warning: E-ring (1) Paper exit reverse gear (1) The interlock which is turned OFF when the front right or left door opens or closes should never be turned ON forcibly with the ADU stand drawn out.

  • Page 262: Removing And Reinstalling The Adu Stand

    (5) Remove the front right door and the front left door. (See "EXTERNAL SECTION.") (6) Remove one screw (in the case of the 7155/ 7165) or loosen one screw (in the case of the 7255/7272) to detach the connector cover.

  • Page 263: Removing And Reinstalling The Pre-Registration Roller

    ADU UNIT (9) Remove one screw to release the lock of the han- [12] Removing and Reinstalling the dle(right). Pre-Registration Roller (10) Remove the two screws securing the guide rails Warning: on the paper feed side and paper exit side. The interlock which is turned OFF when Caution: Do not mistake the screws securing the front right or left door opens or closes...

  • Page 264: Removing And Reinstalling The Adu Conveyance Roller 3 And 4

    ADU UNIT (6) Slide the ADU pre-registration roller back and [13] Removing and Reinstalling the ADU forth to remove. Conveyance Roller 3 and 4 Warning: E-ring( / 8) The interlock which is turned OFF when E-ring( / 6) the front right or left door opens or closes Registration Polyslider should never be turned ON forcibly with...
  • Page 265 ADU UNIT (7) Remove two screws to release the high voltage (11) Remove two screws to remove the harness supply unit (1). guide plate (front). (8) Disconnect the two connectors (CN460, 461). Caution: Each relay connector consists of two male sides and one female side. Be sure to remove only the male side (shown below) of the connector.
  • Page 266 ADU UNIT (13) Remove the stop rings to remove the ADU decel- (18) Remove the front E-ring and bearing, and eration MC (MC2) and ADU conveyance MC remove the ADU conveyance roller (3) and ADU (MC13). conveyance roller (4) by sliding them back and forth.

  • Page 267: Removing And Reinstalling The Adu Conveyanece Roller 1 And 2

    ADU UNIT [14] Removing and Reinstalling the ADU (11) Disconnect the connector (CN415). (12) Remove three screws to detach the reverse Conveyance Roller 1 and 2 motor assembly. Warning: The interlock which is turned OFF when Screws the front right or left door opens or closes Reverse motor should never be turned ON forcibly with assembly...
  • Page 268 ADU UNIT (13) Disconnect the two connectors (CN403, 404). (17) Remove the E-ring from ADU conveyance roller (14) Disconnect the connector (CN417). (2) shaft. (18) Remove the front E-ring, two belt holding collars, Caution: Each relay connector consists of two ADU conveyance belt (2), and two ADU convey- male sides and one female side.

  • Page 269: Removing And Reinstalling The Paper Reverse/Exit Roller

    ADU UNIT [15] Removing and Reinstalling the Paper (12) Remove the paper reverse/exit roller by sliding it back and forth. Reverse/Exit Roller Warning: E-ring Bearing The interlock which is turned OFF when the front right or left door opens or closes should never be turned ON forcibly with the ADU stand drawn out.
  • Page 270 Blank page...

  • Page 271: Fixing Unit

    FIXING UNIT FIXING UNIT [1] Removing and Reinstalling the Fixing [2] Removing and Reinstalling the Fixing Unit Unit (Top) Caution: Warning: Before opening the fixing unit (top), check Do not touch the fixing unit immediately that the pressure release lever is turned after turning OFF the main power switch counterclockwise and the bottom roller because it is very hot and you may suffer...

  • Page 272: Removing And Reinstalling The Web Cover

    FIXING UNIT [3] Removing and Reinstalling the Web [4] Removing and Reinstalling the Cover Cleaning Web Procedure Procedure (1) Remove the fixing unit. (1) Draw out the ADU stand. (See "ADU UNIT.") (2) Remove the fixing unit front cover. (2) Remove the web cover. (3) Open the fixing separation claw (upper) unit and (3) Remove two screws to remove the cleaning web remove two screws inside.

  • Page 273: Replacing The Fixing Heater Lamps (L2, L3)

    FIXING UNIT [5] Replacing the Fixing Heater Lamps (7) Remove the two Faston terminals of the far side lamp. (L2, L3) Caution: Caution: When removing the Faston terminals, Do not touch the fixing heater lamp with be sure to hold the connector. Con- bare hands.

  • Page 274: Replacing The Fixing Heater Lamp(L4)

    FIXING UNIT (9) Reinstall the above parts following the removal [6] Replacing the Fixing Heater Lamp steps in reverse. (L4) Caution: When installing the lamps, pay atten- Caution: tion to their orientation. The size of the Do not touch the fixing heater lamp with lamp terminal mounting hole in the bare hands.

  • Page 275: Removing And Reinstalling The Fixing Separation Claw (Upper) Unit And Fixing Separation Claws (Upper)

    FIXING UNIT (4) Remove the rear lamp harness from the two har- [7] Removing and Reinstalling the Fixing ness guide to remove the Faston terminal. Separation Claw (Upper) Unit and Fixing Separation Claws (Upper) Procedure (1) Remove the fixing unit. (2) Remove the fixing unit front cover.

  • Page 276: Removing And Reinstalling The Fixing Separation Claw (Lower) Unit And Fixing Separation Claws (Lower)

    FIXING UNIT (9) Reinstall the above parts following the removal [8] Removing and Reinstalling the Fixing steps in reverse. Separation Claw (Lower) Unit and Fixing Separation Claws (Lower) Caution: After installing the fixing separation Procedure claw (upper), move the upper claws (1) Remove the fixing unit.

  • Page 277: Removing And Reinstalling The Fixing Upper Roller And Fixing Drive Gear

    Gear 7155/7255 Washer 7165/7272 None (only Lot No.) Caution4: The fixing drive gear of 7155/7165 is different from that of 7255/7272. Fixing upper roller The fixing drive gear of 7255/7272 is designated for periodical replace- ment parts.

  • Page 278: Removing And Reinstalling The Fixing Lower Roller

    Caution: The fixing entrance guide plate Screw (lower) should be pressed against the fixing upper roller bearing when Screw Bearing installing. Washer Gear E-ring E-ring Jam handling release knob 7272ma3036 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-O-8 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-O-8 REPLACEMENT...
  • Page 279 FIXING UNIT (7) Reinstall the above parts following the removal [12] Removing and Reinstalling the Fixing steps in reverse. Temperature Sensors 1 and 2 Caution1: After reinstalling fixing temperature Caution: When reinstalling, check that the gear sensor 2, make sure that the sensor is installed correctly.
  • Page 280 (6) Reverse the removal procedure to reinstall other parts. Fixing upper roller Screws(2) Positioning jig (7050K0010) Fixing temperature sensor 1 7272ma3037 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 3-O-10 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 3-O-10 REPLACEMENT...
  • Page 281 FIXING UNIT [13] Removing and Reinstalling the b. Reinstallation procedure (1) Connect two Faston terminals to the thermostat/ Thermostat/U (TS1) Caution: (2) Set a thermostat positioning jig (00M8-1-00) This is an important safety part. (P/N: between the thermostat/U and fixing upper roller SP00-0020) Be sure to observe the follow- and secure the thermostat/U with one screw so ing cautions and steps when removing or...
  • Page 282 FIXING UNIT b) When making the adjustment, make sure that [14] Removing and Reinstalling the the thermostat/U does not ride on the posi- Thermostat/L (TS2) tioning jig (C). Caution: This is an important safety part. (P/N : SP00-0010) Be sure to observe the follow- ing cautions and steps when removing or reinstalling.
  • Page 283 FIXING UNIT b. Reinstallation procedure b) After setting the distance “b”, remove the (1) Set a part (a) thermostat/L positioning jig thermostat/L positioning jig, and make sure (56AEJG011) between the thermostat/L and the that the part (b) thermostat/L positioning jig fixing lower roller, and secure the thermostat/L cannot be inserted in a space between the fix- with two screws so that the distance between the...
  • Page 284 Blank page...
  • Page 285 SERVICE MANUAL Models 7155/7165/7255/7272 Service Section JANUARY 2004 KONICA MINOLTA BUSINESS SOLUTIONS U.S.A., INC.
  • Page 287 7155/7165/7255/7272 SERVICE MANUAL JANUARY 2004...
  • Page 288 Corporate Publishing Department © 2004, KONICA MINOLTA BUSINESS SOLUTIONS U.S.A., INC. All rights reserved. Printed in U.S.A.
  • Page 289 [14] Non-image area erase check ....1-69 [15] Recall standard data (Image adjustment) 1-70 [16] Running Test Mode ........1-71 [17] Test pattern output mode ......1-71 [18] Test pattern density setting ......1-78 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...
  • Page 290 (FS-210) ..........1-126 [25] PK Adjusting the tilt of the punch hole position (PK-110) ..........1-127 [25-1] PK Adjusting the tilt of the punch hole position (PK-120) ..........1-128 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...
  • Page 291 5. ELECTRIC PARTS LIST Internet ISW using Web utility....2-30 Internet ISW by operation panel ....2-33 PARTS LAYOUT DRAWING........5-1 Precautions for use........2-35 7155/7165/7255/7272 Parts Layout Drawing ............5-1 3. KRDS DF-316/DF-322 Parts Layout Drawing ..5-9 LT-402/LT-412 Parts Layout Drawing ..5-10 FS-110/FS-210 Parts Layout Drawing ..5-11...
  • Page 292 PK-120 Overall Wiring Diagram ....5-61 PZ-108/PZ-109 Overall Wiring Diagram.. 5-62 FS-111 Overall Wiring Diagram....5-63 SF-101 Overall Wiring Diagram....5-64 APPENDIX 7155/7165 Overall Wiring Diagram ... A-1 7255/7272 Overall Wiring Diagram ... A-2 FS-110/FS-210 Overall Wiring Diagram..A-3 MODEL MANUAL...

  • Page 293: Safety And Important Warning Items

    Because of possible hazards to an inexperienced person servicing this copier as well as the risk of damage to the copier, Konica Minolta Business Solutions U.S.A., INC. (hereafter called the KMBS) strongly recommends that all servicing be performed only by KMBS-trained service technicians.

  • Page 294: Safety Warnings

    MODIFICATIONS NOT AUTHORIZED BY KONICA MINOLTA BUSINESS TECHNOLOGIES, INC. Konica Minolta brand copiers are renowned for their high reliability. This reliability is achieved through high-qual- ity design and a solid service network. Copier design is a highly complicated and delicate process where numerous mechanical, physical, and electrical aspects have to be taken into consideration, with the aim of arriving at proper tolerances and safety factors.
  • Page 295 CHECKPOINTS WHEN PERFORMING ON-SITE SERVICE Konica Minolta brand copiers are extensively tested before shipping, to ensure that all applicable safety stan- dards are met, in order to protect the customer and customer engineer (hereafter called the CE) from the risk of injury.
  • Page 296 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Power Plug and Cord • Do not bundle or tie the power cord. Overheating may occur there, leading to a risk of fire. • Check whether dust is collected around the power plug and wall outlet. Using the power plug and wall outlet without removing dust may result in fire.
  • Page 297 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Ground Lead • Pay attention to the point to which the ground lead is connected. Connecting the ground lead to an improper point such as the points listed below results in a risk of explosion and electric shock: a.
  • Page 298 MODEL MANUAL REVISED EDITION DATE PAGE METHOD REPLACEMENT 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003...
  • Page 299 SAFETY AND IMPORTANT WARNING ITEMS DANGER: Work Performed with the Copier Powered • Take every care when servicing with the external cover detached. High-voltage exists around the drum unit. A risk of electric shock exists. WARNING: Safety Checkpoints • Check the exterior and frame for edges, burrs, and other damages. The user or CE may be injured.
  • Page 300 SAFETY AND IMPORTANT WARNING ITEMS WARNING: Safety Checkpoints • After replacing a part to which AC voltage is applied (e.g., optical lamp and fixing lamp), be sure to check the installation state. A risk of fire exists. • Check the interlock switch and actuator for loosening and check whether the interlock functions properly.
  • Page 301 2. When performing service, each copier on the site must be tested for safety. The customer engineer must verify the safety of parts and ensure appropriate management of the equipment. MODEL MANUAL REVISED EDITION DATE PAGE METHOD REPLACEMENT 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003...

  • Page 302: Safety Information

    SAFETY AND IMPORTANT WARNING ITEMS SAFETY INFORMATION IMPORTANT INFORMATION The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration implemented regulations for laser products manufactured since August 1, 1976. Compliance is mandatory for products mar- keted in the United States.

  • Page 303: Safety Circuits

    SAFETY AND IMPORTANT WARNING ITEMS SAFETY CIRCUITS This machine is provided with the following safety cir- Protection by L2, L3 and L4 (fixing cuits to prevent machine faults from resulting in seri- heater lamps) overheating prevention ous accidents. circuit Overall protection circuit L2 and L3 (fixing heater lamps) overheating DCPS prevention circuit...
  • Page 304 SAFETY AND IMPORTANT WARNING ITEMS Protection by the hardware circuit The output voltages from TH1 and TH2 (fixing temperature sensors) are compared with the abnormality judgment reference value in the comparator circuit. If the output voltage from TH1 or TH2 exceeds the reference value, L2 (fixing heater lamp 1), L3 (fixing heater lamp 2), L4 (fixing heater lamp 3) and RL1 (main relay) are turned OFF in hardware means.

  • Page 305: Indication Of Warning On The Machine

    SAFETY AND IMPORTANT WARNING ITEMS INDICATION OF WARNING ON THE MACHINE Caution labels shown below are attached in some areas on/in the machine. When accessing these areas for maintenance, repair, or adjustment, special care should be taken to avoid burns and electric shock.
  • Page 306 SAFETY AND IMPORTANT WARNING ITEMS In the case of the 7155/7165 CAUTION You may be burned or injured if you touch any area that you are advised by any caution label to keep your- self away from. Do not remove caution labels. If any caution label has come off or soiled and therefore the caution cannot be read, contact our Service Office.
  • Page 307 Do not remove caution labels. If any caution label has come off or soiled and therefore the caution cannot be read, contact our Service Office. MODEL MANUAL REVISED EDITION DATE PAGE METHOD S-15 S-14-1 ADDITION 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003...
  • Page 308 Do not remove caution labels. If any caution label has come off or soiled and therefore the caution cannot be read, contact our Service Office. MODEL MANUAL REVISED EDITION DATE PAGE METHOD S-16 S-14-2 ADDITION 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003...
  • Page 309 SAFETY AND IMPORTANT WARNING ITEMS <SCANNER SECTION> 7272sf004 <WRITE UNIT> In the case of the 7155/7165 7272sf005 In the case of the 7255/7272 7272sf001 MODEL MANUAL REVISED EDITION DATE PAGE METHOD S-17 S-15 REPLACEMENT 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003...
  • Page 310 SAFETY AND IMPORTANT WARNING ITEMS <REAR COVER> CAUTION You may be burned or injured if you touch any area that you are advised by any caution label to keep your- self away from. Do not remove caution labels. If any caution label has come off or soiled and therefore the caution cannot be read, contact our Service Office.
  • Page 311 Do not remove caution labels. If any caution label has come off or soiled and therefore the caution cannot be read, contact our Service Office. MODEL MANUAL REVISED EDITION DATE PAGE METHOD S-19 S-17 7155/7165 SERVICE HANDBOOK Apr. 2003 ADDITION...
  • Page 312 Blank page MODEL MANUAL REVISED EDITION DATE PAGE METHOD S-18 ADDITION 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003...

  • Page 313: Adjustment

    ADJUSTMENT...
  • Page 314 Blank page...

  • Page 315: How To Use This Section

    HOW TO USE THIS SECTION HOW TO USE THIS ADJUSTMENTS MADE SECTION WHEN REPLACING PARTS [1] Scope and Precautions Adjustments (including checks) and settings are not This section provides detailed information about only required when a customer complaint about the adjustment items and procedures.

  • Page 316: List Of Adjustment Items

    (main scan) Scanner (RADF) warp 1-68 (sub-scan) 32 Finisher Stitch and fold stopper adjustment 1-79 Adjust- Folding stopper adjustment 1-79 ment Cover sheet tray size adjustment 1-80 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 REPLACEMENT...
  • Page 317 “47mode -92” and -96” settings using the saved adjustment data, the protection must be disabled. For the unprotection method, contact the service manager ot the authorized distributor. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...

  • Page 318: Lcd Adjustment

    LCD ADJUSTMENT LCD ADJUSTMENT SETTINGS AND ADJUST- MENTS MADE WITH THE [1] LCD Control Panel Adjustment P FUNCTION Enter the key operator mode and select " Touch panel adjustment" to adjust the LCD touch panel. The P function allows you to perform following numeri- *If you cannot select the touch panel adjustment cal value checks using the P button: mode pressing any numeric key after entering key...

  • Page 319: Mode Changing Menu

    MODE CHANGING MENU MODE CHANGING MENU [1] Mode Selection You can select a mode from the following [Mode chang- ing menu: [Select mode] without turning OFF and ON the power switch. Basic screen 3-6 mode 2-5 mode Key operation mode 4-7 mode Step Operation...

  • Page 320: Mode

    25 MODE 25 MODE [1] Setting the 25 Mode This machine has an adjustment mode called the "25 Mode". Select this mode to rewrite data in the non-vol- atile memory or make various settings. Turn OFF the SW2 (sub power). While pressing the copy quantity setting button 2 and 5, turn ON the SW2 (sub power).

  • Page 321: List Of Adjustment Items For 25 Mode

    Switches". Paper size setting PM count Resetting PM Count Setting PM cycle Data collection (7155/7165) Total count of each paper size Copy count of each paper size Print count of each paper size RADF count Pixel ratio of each section...
  • Page 322 Setting KRDS Phone Number Setting KRDS Software SW Setting KRDS Setup Call for maintenance start Call for maintenance end KRDS mail setting ISW updating Setting date input MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-7-1 ADDITION...
  • Page 323 Blank page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-7-2 ADDITION...

  • Page 324: Setting Software Dip Switches

    25 MODE [3] Setting Software DIP Switches 1. Procedure Bring up the Software DIP SW Setting screen and set software DIP switches. Step Operation Enter the 25 mode. [Memory setting mode menu Screen] Select " Software DIP SW setting". [Software DIP SW setting screen] Select a DIP switch number.
  • Page 325 Transfer/separation output for plain paper * 9 3 Transfer/separation output for thick paper * 10 * 10 DIPSW 6 5 Transfer/separation output for thin paper * 11 * 11 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...
  • Page 326 * 18 2 Page memory allocation when job starts * 19 * 19 Duplex shift printing from Adobe PS3 Independent Common shift (7155/7165) (Note2) shift DIPSW10 Fixing low power recalling temperature set- Recalled after Recalled after ting (7255/7272) (Note3) 45 seconds...
  • Page 327 25 MODE DIPSW Initial Value Function Japan Inch Metric Every 10 copies Every 50 copies (7155/7165) (7155/7165) 0 Black stripe creation interval Every 12 copies Every 60 copies (7255/7272) (7255/7272) Coin vendor paper size signal switchover (7155/7165) Shifting from A3 to A3R (7255/7272)
  • Page 328 * 30 * 30 Image reference position of unspecified size of paper 4 Power save button function Enabled Disabled Correspondence of PZ-109 (7155/7165) Not correspond Correspond DIPSW22 Automatic punch hole switching unit (7255/ Not provided Provided 7272) Request for staple...
  • Page 329 7 Proof/wait with tandem mode (IP). Disabled Enabled Setting of document size to be defined Sub-scan: Sub-scan: large-size by scanner count 338mm or more 391mm or more DIPSW26 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-13 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-13 REPLACEMENT...
  • Page 330 DIPSW28 Centering adjustment in key operation Not available Available mode (7255/7272) Correspondence of E-mail KRDS (IP) Not correspond Correspond (7155/7165) Correspondence of E-mail KRDS (IP) Not correspond Correspond (7255/7272) 1 Correspondence of memory overflow when IP printing Include of proof copy to the set copy quan-...
  • Page 331 DIPSW30 7 Passwords to save/access hard disk JOB Not displayed Displayed Double-sided copy of non-standard size Disabled Enabled papers DIPSW32 Fixing linear velocity adjustment DIPSW33 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-15 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-14-1 ADDITION...
  • Page 332 Blank page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-14-2 ADDITION 1-16...
  • Page 333 15,000 copies are as follows : 20,000 copies (1) Laser PWM 25,000 copies (2) Toner density of developer 30,000 copies (3) Toner concentration threshold Not cleaned MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Apr. 2003 1-15 REPLACEMENT...
  • Page 334 Recycled paper 1 (Japan) Mode Recycled paper 2 (Inch area) Standard Recycled paper 3 (Metric area) Approx. +10 µA User paper Approx. +20 µA No correction MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Apr. 2003 1-16 REPLACEMENT...
  • Page 335 This bit sets the maximum time of initial rotation lb recycled paper, Inch area/inch: 20 lb recycled of the fixing roller. paper, metric: 80g/m recycled paper, Metric 7155/7165 area/metric: 80g/m recycled paper, inch: 20 lb Mode recycled paper) is used.
  • Page 336 10-1 with power supply ON, this setting has Stop immediately after detection priority. Stop at end of copy after detection No alarm stop No alarm stop MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-18 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-18 ADDITION...
  • Page 337 4 holes or 2 and 4 holes The higher the brightness level, the higher the (Metric area) density. Mode 17-6 17-5 17-4 80 (brightness level) 255(not clipped) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Apr. 2003 1-19 REPLACEMENT...
  • Page 338 MC during drum/developer rotation). No cuuntermeasure Mode 27-6 27-5 Remaining capacity 10% None Remaining capacity 20% 30 seconds Remaining capacity 30% 45 seconds 60 seconds MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-20 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-20 REPLACEMENT...
  • Page 339 Mode 33-3 33-2 33-1 33-0 -0.2% -0.4% -0.6% -0.8% -1.0% -1.2% -1.4% -1.6% +0.2% +0.4% +0.6% +0.8% +1.0% +1.2% +0.4% MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-20-1 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-20-1 ADDITION...

  • Page 340: Setting The Paper Size

    Press the key to finish setting.To cancel the new setting, press the key, Pressing either key will CANCEL display the Memory setting mode menu Screen again. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-20-2 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-20-2 ADDITION...
  • Page 341 Screen again. Reference 1: Each time the current tray size is changed on this screen, the new setting will be written into the non-volatile memory. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-21 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-21 REPLACEMENT...

  • Page 342: Pm Count Resetting

    25 MODE [5] PM Count Resetting [6] Setting the PM Cycle Care should be taken not to reset the PM count by mis- This function allows you to change the PM cycle. take. Caution: The PM cycle is factory-set. Use this Step Operation function to change the factory-set PM...

  • Page 343: Collecting Data

    KRDS. Print count of each paper size 1. Data that can be Viewed In the case of the 7155/7165 4 RADF count Data Type Pre-operation 5 Scanner count Total count of...
  • Page 344 25 MODE 3. Viewing Collecting Data No.7 to No.12 (7155/7165), No.8 to 13 (7255/7272) Step Operation Enter the 25 mode. [Memory setting mode menu Screen] Select " Software DIP SW setting". [Software DIP SW Setting Screen] Set bit 1 of DIP switch 30-1 to 1.
  • Page 345 1. Each time a printed copy is ejected, the counter is incremented by 1 regardless of the paper size. 2. Any size other than paper sizes 1-9 is counted as Special size. (SEL/LEF are counted as the same size.) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-25 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-25 REPLACEMENT...
  • Page 346 2. Counters 1 and 2 count original sides independently of counters 3-7. (3) Collecting data No. 5 (7155/7165), No.6 (7255/7272): Pixel ratio of each section *1 This allows checking the average pixel ratio of 5000 prints for latest 30 data.
  • Page 347 25 MODE (6) Collecting data No.8 (7155/7165), No.9 (7255/7272): JAM count / Collecting data No.11 (7155/7165), No.12 (7255/7272): JAM count of each section (can be reset) Description of JAM Code displayed position KRDS when display of display param- Maximum Counting...
  • Page 348 999999 6-digit counters. 72-23 72-24 72-25 72-26 72-27 72-28 72-29 72-30 72-32 72-33 72-34 72-35 72-38 72-39 72-40 72-41 72-42 72-43 72-44 72-45 72-46 72-47 72-48 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 1-28 REPLACEMENT...
  • Page 349 999999 72-90 6-digit counters. 72-60 72-61 72-62 72-63 71-3 1. When a jam occurs, the associated counter is incremented by 1 (Static jams are not counted.) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 1-29 REPLACEMENT...
  • Page 350 25 MODE (7) Collecting Data No.7 (7155/7165), No.10 (7255/7272):Count of each copy mode KRDS Maximum parameter Item Counting condition count (F1) 1-1 mode 1-2 mode 2-1 mode 2-2 mode ADF1-1 mode ADF1-2 mode Mixed original mode Index original Z-folded original mode...
  • Page 351 25 MODE KRDS Maximum parameter Item Counting condition count (F1) Preset magnification R3 Preset magnification R2 Preset magnification R1 User lens mode 1 User lens mode 2 User lens mode 3 ZOOM Vertical/Horizontal zoom Maximum ZOOM Minimum ZOOM Auto density (EE) User density level 1 User density level 2 Interrupted copy...
  • Page 352 25 MODE KRDS Maximum parameter Item Counting condition count (F1) Set quantity 11 or more All counters are 8-digit counters. Energized time of power condition 1 Total period of time during which image control board is energized. Total period of time during the opera- tion of CPU.
  • Page 353 Wide paper count (A4W or 8.5x11W) Wide paper count (A4RW or 8.5x11RW) Wide paper count (A5W or 5.5x8.5W) Wide paper count (Others) Punch Z-fold Unused Mixplex (1-sided) Mixplex (2-sided) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-33 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-33 REPLACEMENT...
  • Page 354 25 MODE (8) Collecting data No.10 (7155/7165), No.11 (7255/7272): SC count / Collecting data No.12 (7155/7165), No.13 (7255/7272): SC count of each section (can be reset) KRDS Trouble Maximum parameter Description Remarks code count (E0) Paper feed MT EM LCT conveyance MT EM...
  • Page 355 29 Calibration start error 30 Calibration abend 31 APC initial sampling error 32 MPC error 33 Sub-scan beam correction error 34 Unfinished Calibration 35 Continuous copy page area error MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 1-35 REPLACEMENT...
  • Page 356 25 MODE KRDS Trouble Maximum parameter Description Remarks code count (E0) 40 HDD initialization trouble 41 HDD JOB save error 42 HDD periodic cleaning error 43 HDD access failure 50 Tandem communication error 51 Tandem image communication error 64 PWMg curve generation failure 80 Insufficient/broken message queue 81 Invalid message or method parameter 82 Invalid task...
  • Page 357 25 MODE KRDS Trouble Maximum parameter Description Remarks code count (E0) 12 Stapler/R error 13 Clincher/F driving error 14 Clincher/F driving error 21 Stopper motor drive error 22 Alignment plate/L drive error 25 Folding knife motor drive error 26 Folding conveyance motor drive error 31 Trimmer conveyance drive error 32 Trimmer conveyance error 33 Trimmer rear end stopper drive error...
  • Page 358 Large size All counters are 99999999 8-digit counters. 1. Counted when the uploading is completed. 2. The threshold for large size is set by 25-mode DIPSW26-1. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-38 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-37-1 REPLACEMENT...
  • Page 359 25 MODE ADJUSTMENT 25 MODE Blank page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-37-2 ADDITION...

  • Page 360: Copy Count By Parts To Be Replaced (Fixed Parts)

    03 Cleaning blade 56AA2010 =1: For A3, 11x17, 8k, count 2 per ejected paper 04 Toner reclaim roller 56AA-213 for single sided, 4 for double sided unit assembly (7155/7165) 56QA-213 (7255/7272) 99999999 05 Charging blade 56AA2503 06 Charger cleaning 56AA-253...
  • Page 361 56AA5427 0E Fixing lower claw 25BA5333 (7155/7165) 56QA5320 (7255/7272) 0F Heat insulate sleeve 45405339 (upper) 10 Upper roller bearing 45407504 11 Cleaning roller (7155/7165) 56AA5308 12 Toner control board 56AA-910 unit 13 Trans./sep. corona 56AA-260 99999999 unit (7155/7165) 56QA-260 (7255/7272)
  • Page 362 Counting condition para- count meter 1C Tray 1 feed rubber 25AA4001 1 is counted each time the paper from tray 1 is ejected. (7155/7165) 56AA-658 (7255/7272) 1D Tray 1 feed conv/rev 25SA4096 rubber 1E Tray 1 feed clutch 56AA8201 1F Tray 1 convey clutch 56AA8201...
  • Page 363 1 is counted each time the paper from by-pass tray is ejected. 31 By-pass conveyance/ 54004056 reverse roller 32 By-pass count 56AA-460 (7155/7165) 56QA-460 (7255/7272) 33 LCT feed roller 55VA-484 1 is counted each time the paper from LCT is ejected.
  • Page 364 1 is counted each time one set of papers in DM folding mode is ejected. 4B FNS DM gate SD 12QR-263 Counted each time one paper is ejected in three- holding mode MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-42 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-42 REPLACEMENT...
  • Page 365 99999999 vention roller 5F ADF paper exit sole- 12QV8251 1 is counted each time one original passes in the noid (7155/7165) double side or the mixed mode 13QA-407 (7255/7272) 60 ADF feed clutch 56AA8201 single side: Number of originals passes in every...
  • Page 366 (7255/7272) 4 is counted for double-sided. 73 Fixing drive gear 56QA7721 (7255/7272) 124 7B 125 7C 126 7D 127 7E 128 7F MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-44 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-42-2 ADDITION...

  • Page 367: (Optional Parts)

    25 MODE [9] Copy Count by Parts to be Replaced 2. Changing the data on the Copy Count by Parts to be Replaced (Optional Parts) (Optional Parts) This function allows you to change the limit value, part This function allows you to make the following settings number, or part name for the desired optional copy for an optional part or data: count by parts to be replaced (optional parts).

  • Page 368: Setting Passwords

    25 MODE Reference1: The characters entered in the data [10] Setting Passwords field of each data item will be This function allows you to set the following pass- shifted to the left one after another. words: Key operator password (4 digits) Reference2: When the number of entered char- This password is required to enter the key oper- acters exceeds 10, the leftmost...

  • Page 369: Setting The Telephone Number And/Or Fax Number Of The Service Center

    25 MODE Reference1: The digits entered in the data field [11] Setting the Telephone Number and/or of each data item will be shifted to Fax Number of the Service Center the left one after another. This function allows you to set the telephone number and/or fax number of the service center displayed Reference2: When the number of entered digits when a service call occurs.

  • Page 370: Setting The Serial Number

    Reference2: The entered characters will be shifted to the left one after another, starting at the right end. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 1-46 REPLACEMENT...

  • Page 371: Krds Setting

    Memory setting mode menu Screen. Note: Ends when the key is pressed with- CANCEL out amending the entered date, and returns to the Memory setting mode menu Screen. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-46-1 REPLACEMENT 1-46-1...
  • Page 372 Blank page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-46-2 REPLACE...

  • Page 373: Mode

    36 MODE 36 MODE [1] Setting Method [2] High Voltage Adjustment This machine is provided with 36 Mode as an adjust- Adjusting the high voltage for charging, transfer, sepa- ment mode. ration, and development. This mode is used to perform various adjustments. Select "...

  • Page 374: Charging Grid Voltage Adjustment

    Process adjustment". [Process adjustment mode menu Screen] Press " High voltage adjustment". [High voltage adjustment mode menu Screen] Press " HV adj. (Charging grid volt- age)". MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Apr. 2003 REPLACEMENT 1-48...

  • Page 375: Drum Peculiarity Adjustment

    36 MODE [4] Drum Peculiarity Adjustment 1. Blade setting mode In this mode, toner stuck on the drum surface Adjusting the blade set, maximum density (Dmax), dot during replacement of the cleaning blade or diameter, laser offset and gamma. drum is removed to prevent damage to the drum Select "...
  • Page 376 36 MODE 2. Auto maximum density adjustment 3. Auto dot diameter adjustment (Dmax adjustment) Automatically adjusting the dot diameter. Automatically adjusting the maximum density This adjustment should be performed when the (Dmax). This adjustment should be performed drum, developer, write unit, or dust-proof glass is when the drum, developer, write unit, or dust- replaced.
  • Page 377 Repeat steps 6 to 10 until the specifica- Press any key of , or LS280 LS320 tion is satisfied. . (in the case of the 7155/7165) LS185 Press the key to return to the RETURN Drum peculiarity adjustment mode Press any key of...
  • Page 378 Press any key of , or LS280 LS320 Press the key to return to the RETURN . (in the case of the 7155/7165) LS185 Drum peculiarity adjustment mode Press any key of , or LS345 LS280 menu Screen.
  • Page 379 36 MODE 6. LD1 bias adjustment Reference: LD1 bias adjustment is inhibited in the field. If any one of the following error messages appears during auto gamma adjustment, 7. LD1 bias adjustment clean the TSCB (toner control sensor board), LD1 bias adjustment is inhibited in the field. check its installation state, and retry the auto gamma adjustment.

  • Page 380: Auto Gamma Adjustment/Cartridge Set Mode

    γ <1>Error 1: The sensor dirt correction has been corrected. γ <2>Error 2: No signal is output from the sen- sor. No control patch is output. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Nov. 2001 1-54 REPLACEMENT...

  • Page 381: Drum Peculiarity Adjustment (Manual)

    Transfer/separation output screen appears. Enter data according to the user speci- fied paper. Data should be input under the guidance of the authorized distribu- tor. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 1-55 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-55 REPLACEMENT...

  • Page 382: Recall Standard Data (Process Adjustment)

    The screen changes from Tray 1 to Tray Various data is restored to standard val- 2 to Tray 3 to By-pass tray 1 to By-pass ues. tray 2. (7155/7165) Press the key to return to the RETURN The screen changes from Tray 3 to Tray Process adjustment Screen.

  • Page 383: Magnification Adjustment

    36 MODE [9] Magnification Adjustment 1. Printer drum clock magnification adjust- ment Adjusting the printer and copy vertical and horizontal Adjusting the printer vertical magnification. magnifications. Step Operation Select " Image adjustment" in the Adjust- ment mode menu Screen to display the Image Enter the 36 mode.
  • Page 384 36 MODE 2. Printer horizontal magnification adjust- 3. Scanner (platen) drum clock magnifica- ment tion adjustment Adjusting the horizontal magnification. Adjusting the vertical magnification for the scan- ner. Step Operation Step Operation Enter the 36 mode. Enter the 36 mode. [Adjustment mode menu Screen] [Adjustment mode menu Screen] Press "...
  • Page 385 36 MODE 4. Scanner (RADF) drum clock magnifica- Press the key to return to RETURN tion adjustment the Magnification adjustment mode Adjusting the vertical magnification during RADF menu Screen. copy. Step Operation Enter the 36 mode. [Adjustment mode menu Screen] Press "...

  • Page 386: Timing Adjustment

    36 MODE [10] Timing Adjustment [RADF drum clock adjustment Screen] Adjusting the leading edge timing (paper feed restart Enter a value with the numeric keys and timing), registration loop amount, and leading edge erasure amount. press the key. Select Image adjustment in the Adjustment Setting range: -40 to +40 mode menu Screen to display the Image adjust- 1 step=0.05%...
  • Page 387 Printer restart timing adj". [Printer restart timing adjustment Screen] Press any key of , or LS320 LS280 . (in the case of the 7155/7165) LS185 Press any key of , or LS345 LS280 . (in the case of the 7255/7272) LS172.5...
  • Page 388 RETURN Adjusting the printer registration loop amount for Timing adjustment mode menu Screen. trays (7155/7165 : tray 1, 2, 3) (7255/7272 : tray 1, 2, 3, 4), LCT, by-pass tray, and ADU. Step Operation Enter the 36 mode.
  • Page 389 Blank page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-61-2 REPLACEMENT...
  • Page 390 4. Printer leading edge timing adjustment ment Adjusting the printer leading edge timing (image Adjusting the pre-registration loop amount for erasure amount). trays (7155/7165 : tray 1, 2, 3) (7255/7272 : tray Step Operation 1, 2, 3, 4), LCT and ADU. Enter the 36 mode.
  • Page 391 36 MODE 5. Scanner (platen) restart timing adjustment 6. RADF restart timing adjustment Adjusting the scanner restart timing during platen Adjusting the scanner leading edge timing during copy. RADF copy. Caution: Printer restart timing adjustment must Caution: Printer restart timing adjustment must be completed before performing this be completed before performing this adjustment.

  • Page 392: Radf Adjustment

    36 MODE 7. RADF registration loop amount adjust- [11] RADF Adjustment ment Performing RADF density adjustment, RADF original Adjusting the registration loop amount during size adjustment and RADF skew offset adjustment. RADF copy. Select Image adjustment in the Adjustment mode menu Screen to display the Image adjust- Caution: Printer restart timing adjustment must ment mode menu Screen.
  • Page 393 RETURN edly, there is a possibility of scanner the RADF adjustment mode menu system mechanical, optical, or elec- Screen. trical adjustment error or parts defect. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Apr. 2003 1-65 REPLACEMENT...

  • Page 394: Centring Adjustment

    If the RADF skew offset amount is not within specification, repeat steps 5 to 9. Press the key to return to the RETURN RADF adjustment mode menu Screen. MODEL MANUAL REVISED EDITION DATE PAGE METHOD REPLACEMENT 7155/7165 SERVICE HANDBOOK Nov. 2001 1-66...
  • Page 395 36 MODE 1. Printer Centring Adjustment 2. Scanner (platen) centring adjustment Adjusting the printer centring. Adjusting the scanner (platen) centring. Step Operation Preparation: Printer centring adjustment must Enter the 36 mode. be completed before performing this adjustment. [Adjustment mode menu Screen] Step Operation Press "...
  • Page 396 36 MODE 3. RADF centring adjustment Enter a value with the numeric keys and This adjusts centring for the RADF copy. press the key. There are six adjustment items as follows: Setting range: -30 to +30 • Single sided small size 1 step=0.1mm •...

  • Page 397: Distortion Adjustment (Copier)

    36 MODE [13] Distortion adjustment (Copier) [14] Non-image area erase check This is to correct distortion during platen/RADF copy- When this machine is installed in a place or is moved ing. There are four adjustment items as follows: to another location, research should be conducted on •...

  • Page 398: Recall Standard Data (Image Adjustment)

    36 MODE machine in a dark location and facing a direc- [15] Recall standard data (Image adjust- tion such that external light does not get into it, ment) then carry out the installation survey once Restoring image adjustment settings to standard val- again.

  • Page 399: Running Test Mode

    36 MODE [16] Running Test Mode [17] Test pattern output mode Testing continuous copy operation. Output test pattern. Select “ Running test mode” in the Adjustment Select “ Test pattern output mode” in the Adjust- mode menu Screen. ment mode menu Screen to display the Test pattern This adjustment consists of the following items: output mode screen.
  • Page 400 36 MODE Overall halftone No.1 Check item When density is set to 70 (halftone) If there are white stripes, black stripes, or uneven density, determine whether the fault is with the scanner or the printer. When density is set to 0 (white) If the test pattern is gray background, determine whether the fault is with the scanner or the printer.
  • Page 401 36 MODE Gradation pattern No.2 Check item If the test pattern is gray background or the density is light, determine whether the fault is with the γ processing system or with correction. If the copy image is abnormal despite this test pattern being normal, either the image processing system or the scanner system is abnormal.
  • Page 402 36 MODE Gradation pattern No.3 Check item If the test pattern is abnormal, check whether the two lasers are emitting light normally. Test patterns 1-74...
  • Page 403 36 MODE Gradation pattern No.5 Check item If the test pattern is abnormal, check whether the two laser outputs are uniform. Test patterns LD1 LD2 1-75...
  • Page 404 36 MODE Beam misalignment check No.11 Check item If the test pattern is abnormal, check to see if position correction of the two laser beams is normal. Test patterns 1-76...
  • Page 405 36 MODE Linearity evaluation pattern No.16 Check item Use this check pattern to determine whether the fault is with the scanner or the printer. The printer horizontal magnification, vertical magnification, tilt, and leading edge timing and etc, can be checked. If the copy image is defective despite no abnormality in the test pattern, the scanner is at fault.

  • Page 406: Test Pattern Density Setting

    (in the case of the 7255/7272) [Test pattern density Screen] Punch adjustment Use the numeric keys to enter the num- (in the case of the 7155/7165) ber of the test pattern to output and press Z-fold position adjustment (in the case of the 7255/7272) key.
  • Page 407 Setting range: -128 to +127 Setting range: -128 to +127 1 step=0.1mm 1 step=0.1mm (in the case of the 7155/7165) (in the case of the 7155/7165) 1 step = 0.15mm 1 step = 0.15mm (in the case of the 7255/7272)
  • Page 408 LCD. A complete Start mode menu Screen. message appears on the screen. Cover sheet tray Press the key to return to RETURN the Finisher adjustment mode menu Screen. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Apr. 2003 1-80 REPLACEMENT...
  • Page 409 1 step=0.1mm Repeat steps 5-9 until the punched posi- tion is within the specification. Press the key to return to the RETURN Punch adjustment menu Screen. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-81 REPLACEMENT...
  • Page 410 [Finisher adjustment mode menu Screen] [Finisher adjustment mode menu Press " Z-folding position adjust- Screen] ment" in the case of the 7155/7165, and Press " Punch adjustment". press " Z-folding position adjust- ment" in the case of the 7255/7272. [Punch adjustment mode Screen] [Z-folding position adjustment menu Press "...
  • Page 411 Press " Finisher adjustment". [Finisher adjustment mode menu Screen] Press " Z-folding position adjust- ment" in the case of the 7155/7165, and press " Z-folding position adjust- ment" in the case of the 7255/7272. [Z-folding position adjustment menu Screen] Press "...
  • Page 412 Press " 2 positions staple pitch Press " Three-folded positions adjustment" in the case of the7155/7165, adjustment" in the case of the 7155/7165, and press " 2 positions staple pitch and press " Three-folded positions adjustment" in the case of the 7255/ adjustment"...

  • Page 413: List Output Mode

    Note: List output screen is not displayed for Machine management list 2 and subse- quent items unless address 30-1 is set to 1 with Software DIPSW setting in 25 mode. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 REPLACEMENT 1-83...

  • Page 414: Mode

    47 MODE 47 MODE [1] 47 Mode / Multi Mode Setting Method (4) Ending 47 mode Press the stop button to cancel the operation. 1. 47 Mode Turn off the main switch to exit the 47 mode. This mode provides self-diagnostic functions Step Operation (input/output check function) to check and adjust...
  • Page 415 47 MODE 3. Multi mode Step Operation This machine features Multi modes amongst the Enter the 47 mode. 47 Mode functions. [I/O check Screen] This enables multiple I/O checks using a single I/ Use the copy quantity button and enter O check code.

  • Page 416: Adjustment Data Display

    47 MODE [2] Adjustment Data Display (1) When the total capacity of the hard disk is checked: Displaying a list of machine adjustment values The total capacity of the hard disk is (factory-set values and current values). displayed after "OUT:" in the mes- No adjustment (data value change) can be made sage display field.

  • Page 417: Input Checklist

    LCT remaining paper detection signal 3 PS104 LCT remaining paper detection signal 4 PS105 Tray 1 paper size detection signal 1(7155/7165 only) Tray 1 paper size detection signal 2(7155/7165 only) Tray 2 paper size detection signal 1(7155/7165 only) PS11 Tray 2 paper size detection signal 2(7155/7165 only)
  • Page 418 PS13 LCT pre-registration detection signal PS107 Tray 1 vertical conveyance detection signal PS25 (in the case of the 7155/7165) Tray 1 horizontal conveyance PS/L detection signal (in the case of the 7255/7272) Tray 2 vertical conveyance detection signal PS26 Tray 3 vertical conveyance detection signal...
  • Page 419 Stacker no paper detection signal PS720 Staple/R SW detection signal SW702 Stapler HP/R detection signal PS730 Cartridge/R detection signal SW701 Other Clincher /R detection signal than M710 Start start MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-89 REPLACEMENT...
  • Page 420 Paper scraps full detection Punch HP Other Fan motor locking detection Lock than lock Not con- Fold connecting detection- Connected nected FS-110/ Gate HP detection signal PS716 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-90 REPLACEMENT...
  • Page 421 PS10 Stapler movement HP PS11 Paper exit opening PS12 Entrance paper detection PS13 Stapler rotation HP PS14 Tray no paper detection PS15 Roller shift HP PS18 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-91 REPLACEMENT...
  • Page 422 Stapler (F) Ready signal Busy Ready Stapler (F) Busy signal Ready Busy Stapler (F) Clear-demand signal Normal Demand Sub-tray full detection PS50 PS29 Folding full With paper No paper MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-91-1 ADDITION...
  • Page 423 ADU reverse detection signal PS45 ADU conveyance detection signal /2 PS48 ADU deceleration detection signal PS49 ADU pre-registration detection signal PS50 ADU handle detection signal PS47 ADU conveyance detection signal (7155/7165only) PS41 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec.

  • Page 424: Output Checklist

    MC102 Tray up motor /LCT UP/DOWN motor Tray 1 Tray 2 Tray 3 Tray 4 LCT up M100 LCT down By-pass up By-pass down Registration MC MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-92 REPLACEMENT...
  • Page 425 LD alarm check *Caution:When the START key is pressed, "Watch input?" appears. When is selected for each code, the following operation is performed (7155/7165 only): Turns ON the exposure lamp and scanner cooling fan. Turns ON the exposure lamp for 10 minutes.
  • Page 426 Developing motor (1500rpm) (7255/7272 only) Fan motor Scanner cooling fan Write unit cooling fan (High) Write unit cooling fan (Low) (in the case of the 7155/7165) Exhaust cooling fan (in the case of the 7155/7272) FM12 Conveyance suction fan Developing suction fan...
  • Page 427 Alignment motor /L Close(A4 position)only allowed from HP M716 Alignment motor /L rocking (only allowed from Open position) Stopper motor (FS-210 only) M718 Stacker fan FM701 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-95 REPLACEMENT...
  • Page 428 Shift motor (shifted to the opposite side) Tray up/down motor (Upper limit is detected after the motor is M702 lowered.) M702 Tray up/down motor (Lower limit is detected.) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-96 REPLACEMENT...
  • Page 429 ADU lock SD ADU conveyance MC MC13 ADU conveyance MC Second paper feed motor (in the case of the 7155/7165) Second paper feed motor (345mm/s) (7255/7272 only) Second paper feed motor (280mm/s) (7255/7272 only) Second paper feed motor (172.5mm/s) (7255/7272 only)
  • Page 430 Blank page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-96-2 ADDITION...

  • Page 431: Other Adjustment

    Loosen the two screws at the centre of feed section and original image is cor- the tray. (7155/7165 : tray 1/2/3, 7255/ rected in the image processing unit to 7272 : tray 3/4) fit an inclined paper.
  • Page 432 OTHER ADJUSTMENT LCT tray centring adjustment Adjustment method Step Operation Guide plate/front Guide plate/rear Raise the up/down plate. Open the top cover. Remove five screws to detach the side cover (right). Screws Screws Screws Screws Center positioning bracket Right side cover Screws LT-402...
  • Page 433 OTHER ADJUSTMENT Setting the LCT Rear Guide (LT-412 only) Standard value of mis-centring: within 3mm Screws Rear guide Centre of image Within 3mm Centre of paper Rear guide Screw Adjustment method Step Operation Open the top cover. Press SW100 (LT tray down switch) to lower the up/down plate to the bottom.

  • Page 434: Skew Adjustment (Main Body)

    OTHER ADJUSTMENT [2] Skew adjustment (Main body) [3] Adjusting the LCT Paper Feed Roller Pressure (LT-412 only) Tool • Screwdriver (Phillips) Caution: This adjustment is required when no Adjustment method paper feed occurs. Tool • Screwdriver (Phillips) Screws Screws Adjustment method Spring Screw Second paper...

  • Page 435: Paper Up/Down Plate Horizontal Adjustment (Lt-402/Lt-412 Only)

    OTHER ADJUSTMENT [4] Paper up/down plate horizontal Adjustment method adjustment (LT-402/LT-412 only) Step Operation Raise the up/down plate. Caution: Up/down plate horizontal adjustment Open the top cover. must be carried out when a paper feed jam occurs frequently or after replace- Remove five screws to detach the side ment of the up/down wires of a tray.
  • Page 436 OTHER ADJUSTMENT LCT up/down plate horizontal adjustment of LT- Step Operation Remove three screws to detach the clutch replacement cover. Adjustment screw Clutch replacement Screws Screws Mark cover Up/down plate Screws Adjustment screws Remove twelve screws to detach the rear cover. Mark Screws Up/down plate...

  • Page 437: Skew Adjustment (Lt-402/Lt-412 Only)

    OTHER ADJUSTMENT [5] Skew adjustment (LT-402/LT-412 Adjustment method (when some printed sheets are skewed irregularly) only) Step Operation Caution: Skew adjustment is required when the Print a test pattern (No.16) in the contin- paper supplied from the current tray is uous copy mode to check for skew.

  • Page 438: Tray Spring Pressure Adjustment

    OTHER ADJUSTMENT [6] Tray spring pressure adjustment Change the spring hooking position at the bottom of paper feed unit. Caution: Tray spring pressure adjustment must Weak: Double feed is prevented. be performed when no feed or double Strong: No feed is prevented. feed of paper occurs.
  • Page 439 OTHER ADJUSTMENT PI spring pressure adjustment Change the spring hooking position. Weak: Double feed is prevented. Strong: No feed is prevented. Weak (standard) Strong Reference: The spring load changes about 15% each time the spring is hooked in the next slit.

  • Page 440: Paper Feed Height (Upper Limit) Adjustment (Lt-402/Lt-412 Only)

    OTHER ADJUSTMENT [7] Paper feed height (upper limit) adjust- Adjustment method ment (LT-402/LT-412 only) Step Operation Move the up/down plate up. Caution1: Paper feed height (upper limit) adjustment must be performed when Open the top cover. no paper feed occurs, when the lead- Measure the distance between the top ing edge of the fed paper is folded or surfaces of the paper feed guide and...

  • Page 441: Pick-Up Release Amount Adjustment (Lt-402/Lt-412 Only)

    OTHER ADJUSTMENT [8] Pick-up release amount adjustment <When the heights are not within speci- (LT-402/LT-412 only) fications> Adjust the position of the sensor mount- Caution: Pick-up release amount adjustment ing bracket vertically so that the distance must be performed when a no-feed between the top surfaces of the paper jam occurs frequently.

  • Page 442: Radf Mounting Position Adjustment

    OTHER ADJUSTMENT Adjustment method [9] RADF mounting position adjustment Step Operation Tool • Screwdriver (Phillips) Move the paper up/down plate up. • Open-end wrench or flat-nose pliers. Open the top cover. Adjustment method Remove the paper feed pick-up cover/B. Remove the spring from the paper feed roller unit.
  • Page 443 OTHER ADJUSTMENT [10] MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Apr. 2003 REPLACEMENT 1-109...

  • Page 444: Radf Paper Skew Adjustment

    Copy paper Paper skew pattern A Paper skew pattern B Open the Jam access cover. Loosen the retaining screw to release the registration roller bracket. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Apr. 2003 REPLACEMENT 1-110...
  • Page 445 OTHER ADJUSTMENT Back side of original paper skew adjustment Move the registration roller bracket one calibration in the direction below accord- Jam access cover ing to the paper skew pattern. For skew in pattern A: Move the registration roller bracket downwards (direction down with orig- inal feed flow).

  • Page 446: Fns Adjusting The Magnets On The By-Pass Conveyance Guide Plate (Fs-110/210)

    If the stopping piece of the by-pass con- veyance guide plate does not make con- tact with the conveyance guide plate /L, perform the following adjustment: MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-112 REPLACEMENT...

  • Page 447: Fns Adjusting The By-Pass Gate (Fs-110/210)

    If the gap is not within the standard value, perform the following adjustment. Stacker unit Rail stopper securing screw Board to prevent the Finisher from toppling over Open the by-pass conveyance guide plate. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-113 REPLACEMENT...
  • Page 448 OTHER ADJUSTMENT Adjustment Step Operation Step Operation Loosen two screws securing the by-pass gate SD (SD705) and adjust the position Take off the rear cover. of SD705 so that the gap between the Remove all cable assembly from the by-pass gate and by-pass conveyance connectors and clamps connecting to plate becomes within the standard FNS CB (FNS control board).

  • Page 449: Fns Adjusting The Shift Position (Fs-110/210)

    Shift unit If the edge of the actuator for the slide gear does not fit into the notched hole of the slide stay, perform the following adjustment: MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-115 REPLACEMENT...

  • Page 450: Fns Adjusting The Paper Exit Solenoid (Fs-110/210)

    ± Spec value:A=6.5 0.5mm Paper exit nip SD Paper exit SD (SD704) (PS704) If the gap is out of spec, perform the fol- lowing adjustment. Screws MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-116 REPLACEMENT...

  • Page 451: Fns Adjusting The Mount Location Of The Paper Exit Arm (Fs-110/210)

    Paper exit guide Reassemble in the opposite sequence to the removal. Top surface of paper exit belt arm Marks Perform the adjustment if it is out of spec. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-117 REPLACEMENT...

  • Page 452: Fns Adjusting The Mount Location Of The Alignment Plates / U (Fs-110/210)

    Belt detection gear Screw Reassenble in the opposite sequence to the removal. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-118 REPLACEMENT...

  • Page 453: Fns Adjusting The Mount Location Of The Alignment Plates / L (Fs-210)

    Screw Screw Alignment plate /L Alignment HP PS/L (PS724) Alignment plate /U rear Screw MODEL MANUAL REVISED EDITION DATE PAGE METHOD MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 7155/7165 SERVICE HANDBOOK SERVICE MANUAL Apr. 2003 Dec. 2003 1-119 REPLACEMENT...

  • Page 454: Fns Adjusting The Stapling Position (Flat Stapling) (Fs-110/210)

    If they are out of spec or not parallel, per- form the following adjustment: Alignment plate /L Screw Screw MODEL MANUAL REVISED EDITION DATE PAGE METHOD MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 7155/7165 SERVICE HANDBOOK SERVICE MANUAL Apr. 2003 Dec. 2003 1-120 REPLACEMENT REPLACEMENT...

  • Page 455: Fns Adjusting The Stapler Vertical Positioning (Fs-110/210)

    Open the front door and pull out the stacker unit. Take off the stapler unit cover. MODEL MANUAL REVISED EDITION DATE PAGE METHOD MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 7155/7165 SERVICE HANDBOOK SERVICE MANUAL Nov. 2001 Dec. 2003 1-121 REPLACEMENT REPLACEMENT...
  • Page 456 OTHER ADJUSTMENT Step Operation Step Operation Remove the cartridge, open the cover, Loosen the four screws for each and then slide the staple sheet out. clincher. Clincher /R Clincher /F Cartridge Staple sheet Clincher /R Clincher /F Cover Screws Screws Remove the plate from the jig, install it so Insert the two guide pins of the jig in the that its hooks fit the hook holes, and then...

  • Page 457: Fns Adjusting The Stapling Position (Stapling-And-Folding) (Fs-210)

    Remove the cartridge, detach the plate, insert the staple plate slide out on step3, and place the cartridge to its original position. 11 Check that the stapler operates properly. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Nov. 2001 REPLACEMENT 1-123...

  • Page 458: Fns Adjusting The Angle Of The Folding Stopper (Fs-210)

    Parallel Lower edge Mark Mark After the adjustment, retighten the three screws, execute stapling, and then check that the aligned position is within the specification range. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Nov. 2001 REPLACEMENT 1-124...

  • Page 459: Fns Adjusting The Folding Force (Fs-210)

    After the adjustment, retighten the five screws and execute stapling to check that the amount of discrepancy is within Front view the specified limit. Rear view 7272fs1049 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-125 REPLACEMENT...

  • Page 460: Fns Adjusting The Three-Holding Positions (Fs-210)

    Reference value Specifi- Folding positions cation 8.5x11 ± ± ± Unit:mm If the three-holding positions are out of spec, perform the following adjustment: MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-126 REPLACEMENT...

  • Page 461: Pk Adjusting The Tilt Of The Punch Hole Position (Pk-110)

    MODEL MANUAL REVISED EDITION DATE PAGE METHOD MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 7155/7165 SERVICE HANDBOOK SERVICE MANUAL May 2002 Dec. 2003 1-127 REPLACEMENT...

  • Page 462: Pk Adjusting The Tilt Of The Punch Hole Position (Pk-120)

    Mark Adjustment screws Retighten the screws. Make a sample copy of punch mode and recheck the tilt of the punch hole posi- tion. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 REPLACEMENT 1-128...
  • Page 463 Remove the punch unit cover by remov- ing three screws. Make a sample copy of punch mode and recheck the tilt of the punch hole posi- Punch unit cover tion. Screw MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 REPLACEMENT 1-129...

  • Page 464: Pk Adjusting The Punch Hole Vertical Position (Pk-110)

    Adjustment screws Retighten the screws. Make a sample copy of punch mode and recheck the discrepancy of the punch hole vertical position. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 REPLACEMENT 1-130...

  • Page 465: Sensitivity Adjustment For The Pk Paper Edge Sensor (Pk-120)

    Power off the main body after complet- Power on the main body. ing the adjustment. Reinstall the punch drive board cover. Close the front door of the finisher. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 1-130-1 REPLACEMENT...

  • Page 466: Pi Centering Adjustment (Pk-110)

    Install the adjustment cover to the side guide plate (rear). Set 8.5x11R size paper to the tray and perform the cover sheet tray size adjust- ment in 36 mode. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 REPLACEMENT 1-130-2...

  • Page 467: Adjusting The Tilt Of Pi (When Pk Punch Is Used) (Pk-110)

    Repeat steps 1 to 5 until the amount of tilt in the position of punch holes is improved. Open the FNS front cover. Loosen one screw securing the guide plate. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 1-130-3 ADDITION...

  • Page 468: Sensitivity Adjustment For The Pz Paper Edge Sensor (Pz)

    Screws Power off the main body after complet- Screws (loosen) Rear cover ing the adjustment. Power on the main body. Reinstall the rear cover. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Apr. 2003 REPLACEMENT 1-130-4...

  • Page 469: Fns Stapler Driver Belt Position

    • Stapling at one position/front • Stapling at two positions Staple slide pulley/B Screws Install the rear cover and the stapler cover when the adjustment is com- pleeted. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Nov. 2001 REPLACEMENT 1-131...

  • Page 470: Adjusting The Pz Paper-Path Switching Solenoid (Pz)

    Fasten the two screws. Registration guide plate Spec range: 3 to 5mm (viewing) Gate SD/L (SD1) ON Loosen two screws securing the sole- noid. Screws (for solenoid) 7272fs1001 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-132 ADDITION...

  • Page 471: Adjusting The Tension Of The Pz Punch Shift Timing Belt (Pz)

    Note: The tension must be measured at the root of the motor shaft. Oth- erwise, the measuring operation may cause the shaft to bend. Reinstall the rear cover using four screws. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-133 ADDITION...

  • Page 472: Adjusting The Pz 1St Folding Skew (Pz)

    Make a copy of the adjustment chart to check for 1st folding skew. Repeat Steps 6 to 8 until the 1st folding skew falls within the spec range (0.5mm or less). MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-134 ADDITION...

  • Page 473: Adjusting The Position Of The Pz 2Nd Folding Stopper (Pz)

    Hex, screw Hex, screw Pulley Pulley Plate Shaft 2nd folding 2nd folding stopper stopper Rail 7272fs1009 Guide plate Paper stopper A=20 0.5mm 7272fs1010 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-135 ADDITION...

  • Page 474: Adjusting The Pz 2Nd Folding Skew 2Nd Stopper Assembly (Pz)

    If the folding skew is outside the spec range, adjust according to the instruc- tions described in the following steps. MOpen the front door of the FNS and draw out the conveyance unit. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-136 ADDITION...

  • Page 475: Fns Adjusting The Magnets On Conveyance Guide Plate B (Fs-111)

    (two at the front and two at the back), and move conveyance guide plate B all the way in the direction indicated by the arrow. Remove the E-ring and the gear. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-137 ADDITION...

  • Page 476: Fns Adjusting The Magnets On Conveyance Guide Plate C (Fs-111)

    Loosen the 4 magnet-holding set screws (two at the front and two at the back), and move conveyance guide plate C all the way in the direction indicated by the arrow. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-138 ADDITION...

  • Page 477: Fns Adjusting The Sub-Tray Paper Exit Gate (Fs-111)

    Reassemble in opposite sequence to removal. Screws 7272fs1019 Remove the wirings from the clamps, and move the FNS CB together with its bracket. Clamps Clamps Clamps Clamp Clamps Clamps 7272fs1020 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-139 ADDITION...

  • Page 478: Fns Adjusting The Paper-Path Switching Gate (Fs-111)

    Loosen the 2 set screws holding the solenoid in place, and move the solenoid as necessary to adjust. Screws Solenoid 7272fs1022 Retighten the screws. Reinstall in opposite sequence to removal. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-140 ADDITION...
  • Page 479 Spec value for gap: B = 5±0.5mm. Gate Guide Plate (Gate) 7272fs1025 If either measurement is out of spec, carry out adjustment as described below. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-141 ADDITION...

  • Page 480: Fns Adjusting The By-Pass Gate (Fs-111)

    Spec value for gap: B = 5±0.5mm SD5 (By-pass) Screws 7272fs1028 Guide Plate Gate 7272fs1030 If either measurement is out of spec, carry out adjustment as described below. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-142 ADDITION...

  • Page 481: Fns Adjusting The Shift Position (Fs-111)

    Reassemble in the opposite sequence to removal. Cutout on Mounting Plate 7272fs1032 If the actuator is not correctly aligned with the cutout, carry out adjustment as described below. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-143 ADDITION...

  • Page 482: Fns Adjusting Opening/Closing At The Paper Exit (Fs-111)

    Reassemble in the opposite sequence to removal. Bracket 7272fs1033 If the casing is not in firm contact with the stopper, carry out adjustment described as follows. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-144 ADDITION...

  • Page 483: Fns Adjusting The Paper Exit-Opening Sole- Noid (Fs-111)

    Retighten the bracket set screw. Reassemble in the opposite sequence to removal. 7272fs1036 If the gap is out of spec, carry out adjust- ment describe as follows. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-145 ADDITION...

  • Page 484: Fns Adjusting The Paper Exit-Opening Lower Guide Plate (Fs-111)

    Retighten the 2 solenoid screws, then replace the solenoid and bracket into their original position and screw in the 2 bracket screws. Reassemble in the opposite sequence to removal. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-146 ADDITION...

  • Page 485: Fns Adjusting The Mount Location Of The Paper Exit Arm (Fs-111)

    A and B are within spec. Stacker paper exit arm 7272fs1042 Solenoid Bracket Screws 7272fs1041 Retighten the 2 bracket set screws. Reassemble in the reverse sequence to removal. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-147 ADDITION...

  • Page 486: Fns Adjusting The Mount Location Of The Upper Alignment Plates (Fs-111)

    A and B are within specifica- tion. Spec values: A = 338±1.0mm B = 40.7±0.5mm Screws Rear Panel Upper Alignment Plates 7272fs1044 Retighten the screws. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-148 ADDITION...

  • Page 487: Fns Adjusting The Tension Of The Upper Alignment Plate Drive Timing Belt (Fs-111)

    Screws Flat-Stapling Stoppers 7272fs1046 If the lines are not parallel or if you need to change the stapling position, carry out adjustment as described below. 7272fs1045 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-149 ADDITION...

  • Page 488: Testing Operation

    Hold paper against the stoppers and confirm that all three stoppers are in alignment. Execute stapling to confirm that the stop- per line and stapler line are parallel. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-150 ADDITION...
  • Page 489 ON, and then it is moved up in reverse after a specified time is passed. M702 is turned OFF when PS703 (Tray upper limit sensor) is turned ON. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-151 ADDITION...
  • Page 490 Blank page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 1-152 ADDITION...
  • Page 492 Blank page...

  • Page 493: What's Isw

    Trns refer to the ISW (In-System Writer) Service Handbook. Note: Only ISW Trns is enabled with ISW for this machine and the program cannot be updated via ISW Tool. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...

  • Page 494: Setup

    SETUP SETUP [1] ISW-compatible boards 7155/7165/7255/7272 allows ROM data residing on the following boards to be updated via ISW: • Image control board • Printer control board • Finisher control board (Except for FS-111) The ROMs of other boards than the above need to be replaced.

  • Page 495: Classification

    (c) Check that the communication cable trol board flash ROM may have expired. between input devices (PC or ISW tool) is Replace the image control board. properly connected. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 REPLACEMENT...

  • Page 496: Preparing The Copier To Transfer

    Start between printer control board and FNS con- copiers readiness to launch an ISW trol board. transfer. Follow operating instructions in ISW (In- System Writer) Service Manual. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 REPLACEMENT...

  • Page 497: Relationships Between Processing States And Operational Leds

    Retry ISW after turning the main switch OFF, then ON. • Other control programs Relaunch the 25 mode to retry ISW. {It is assumed that the copier has the iamge control program successfully installed.} MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK May 2002 REPLACEMENT...

  • Page 498: Preparation When Pz Is Installed

    Procedure Procedure (1) Power off the main body. In the case of the 7155/7165 (2) Loosen two screws in the lower part of PZ rear Connect the PC parallel port and the copier ISW cover, remove two screws in the upper part, and connector with a parallel interface cable.
  • Page 499 Parallel interface cable (36-pin) USB connector Parallel (printer) interface port Ethernet connector USB cable USB connector ISW connector (36-pin) Ethernet connector (10BASE-T) USB connector (Small type) RS232C 7272fs2001 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 ADDITION...

  • Page 500: Internet Isw

    *3: The available boards are different depending on the copier models. *4: In case it is connected to a LAN, it can only be used within the LAN. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 ADDITION...

  • Page 501: Initial Setting

    For the details, please contact your system administrator. As Web browser, Internet Explorer or Netscape is recommended. Do not perform setting from two or more browsers concurrently. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 ADDITION...
  • Page 502 Step 4: On [Login to Environment setup] page, enter the key operator password and click Apply. The environment setup list appears. Then click [Extension for maintenance]. Login window to Environment setting Environment setup screen MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-10 ADDITION...
  • Page 503 The environment setting list appears. Then click [Internet ISW]. Login window to Extension for maintenance Extension for maintenance screen Step 6: Click [Initial Setting]. Internet ISW main screen MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-11 ADDITION...
  • Page 504 When you finish entering all items, click [Next] and check the contents on the setting confirmation screen. If all are fine, click [Next]. If there is any input error, click [Back] and reset the item according to the mes- sage in red. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-12 ADDITION...
  • Page 505 When you finish entering all items, click [Next] and check the contents on the setting confirmation screen. If all are fine, click [Finish]. If there is any input error, click [Back] and reset the item according to the message in red. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-13 ADDITION...
  • Page 506 When you finish entering all items, click [Next] and check the contents on the setting confirmation screen. If all are fine, click [Finish]. If there is any input error, click [Back] and reset the item according to the message in red. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-14 ADDITION...
  • Page 507 If the download test fails, response error code sent from the server is displayed as follows. There may be input errors. Check the initial setting again. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-15 ADDITION...

  • Page 508: Mail Remote Notification System

    Turn OFF/ON power switch of copier. *1 System administrator usually assigns IP address and network related setting to copier. Please ask sys- tem administrator for details. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-16 ADDITION...
  • Page 509 We recommend to use Internet explorer or Netscape as the Web browser. Do not perform setting from the two or more browsers concurrently. Copyright © 2000 GoAhead Software, Inc. All Rights Reserved. Copier Web utilities main page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-17 ADDITION...
  • Page 510 Input key operator password in [Environment setup log in] page, then click [Apply]. [Environment set up] page is displayed. Then click [E-Mail transmission setting]. Even key operator password set "0000" in 25-mode setting, input "0000". Environment setup page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-18 ADDITION...
  • Page 511 *1 The same setting can be set on LCD of the copier. But do not set concurrently from web browser and Web. *2 Please see the "INSTRUCTION MANUAL" of copier if use the mail transmission system. E-Mail transmission setting page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-19 ADDITION...
  • Page 512 In the [Extension for maintenance] column at the bottom of the page, input the password to change the mode then click the initial setting. Use the password for changing modes. Extension for maintenance page (for customer engineer) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-20 ADDITION...
  • Page 513 10 mails. Even the main power switch is turned OFF, the communication is logged and kept though there are some restrictions. E-Mail reception setting page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-21 ADDITION...
  • Page 514 *4 Use it to check the copier. is turned ON or not. If the time of the copier or the mail application software is not set correctly (including time difference), wrong time is described. In that case, select [No]. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-22 ADDITION...
  • Page 515 Receiving test from receiving mail server is performed. Test mail is received by [E-Mail Address of the copy machine] set on Step2. Turn OFF/ON power switch of copier. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-23 ADDITION...
  • Page 516 To change the password used to certify mail. [NewPasswd] [OldPasswd] Specify current password [NewPasswd] Specify new password HELP Not specified Help mail explaining usage of the above commands is sent. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-24 ADDITION...
  • Page 517 [interval between fetching mails]. *1 Example: All of G, GE, GET, GETL, GETLO, GETLOG equal to specify GETLOG. *2 Return cannot be used. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-25 ADDITION...
  • Page 518 Example of mail requesting counter list*1 Serial number of copier Mail address of the sender Nickname of the copier Requested counter list *1 Language of the returned mail is English only. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-26 ADDITION...
  • Page 519 (the first command) is returned. [GetLog Counter Management] When unrecognizable option is specified. Sending mail [GetLog Log] Returned mail → [Option Not Found GetLog Log] MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-27 ADDITION...
  • Page 520 Then, password was not changed. Accordingly, the password is unchanged and [U-BIX]. Sending mail [ChPass Sitios] Returned mail → [Violation on format by new password.] [ChPass Sitios] When the new password is blank, password is not changed. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-28 ADDITION...
  • Page 521 5. Disabling system In order to disable Mail remote notification system, in Mail reception setting, select [No] for the "Enable E- Mail notification" and then click [Apply] button. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-29 ADDITION...

  • Page 522: Internet Isw Using Web Utility

    Internet ISW main screen Next to each board name, the program version is displayed. *15: Usually, it is not possible to access company-inside copier from outside exceeding firewall. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-30 ADDITION...
  • Page 523 If you click [Check status], you can check the current ISW status. If you click [Cancel], you can stop the ISW only while program is being downloaded. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-31 ADDITION...
  • Page 524 When ISW completes and copier reboots, ensure that the program version is upgraded on the [Internet ISW main screen]. *16: Copier reboots after ISW completes normally. Do not click [Redraw] on the browser. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-32 ADDITION...

  • Page 525: Internet Isw By Operation Panel

    If SW2 (sub power supply) is turned OFF while the rewriting is being executed, the SW2 is turned to OFF status after the rewriting has been completed. [Rewriting confirmation Screen] Pressing "CONTINUE" key to display "ISW mode menu Screen". MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-33 ADDITION...
  • Page 526 After communication protocol is set up at FTP and the connec- tion to network is finished, the server error is returned from the server. * Error codes for FTP and HTTP are general protocol-specified errors. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-34 ADDITION...

  • Page 527: Precautions For Use

    *19: In case of the Internet ISW using the E-mail remote notification system, the sequence of transmitted ISW designating mails and mails received by copier may change. Transmit multiple mails while ensuring reception of completion mail or putting enough intervals. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-35 ADDITION...
  • Page 528 Blank page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 2-36 ADDITION...

  • Page 529: Krds

    KRDS Refer to the "KRDS Setup Manual".
  • Page 530 Blank page...

  • Page 531: Service

    SERVICE...
  • Page 532 Main Precautions for Maintenance 1. Points to be confirmed before mainte- 4. After replacing the drum and developer, nance refer to the List of Adjustments to deter- Prior to maintenance, talk to the opera- mine the adjustments that must be tor concerning the symptoms of the made following the replacement.

  • Page 533: Service Schedule

    Every 250,000 copies PK-110/120 Maintenance Every 250,000 copies PZ-108/109 Periodic check (I) Every 3,000,000 copies *1 Periodic check (II) for FS-110/210 is applied for old type only. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...

  • Page 534: Maintenance Items

    Blower brush/clean- (10) Toner collection screw A ing pad 56AA-213* (11) Toner guide roller (7155/7165) Electricity lubricant 56QA-213* (7255/7272) (12) Cleaning blade (36 mode blade setting mode) 56AA2010* Developing unit (1) Developing bias armature...
  • Page 535 56AA-264* (4) Separation cleaning assem- 56AA-267* φ (5) Resin ring ( 45AA2040* (6) Transfer presser 55VA2615* rubber (7155/7165) 56AA1783* (7255/7272) Toner supply (1) Cartridge holder member Cleaning pad Conveyance unit (1) Conveyance section upper sur- Drum cleaner/clean- ing pad face...
  • Page 536 (6) APS sensor Blower brush (7) Photo interrupter Blower brush (8) Optical guide rail Cleaning pad Writing section Blower brush/clean- (1) Dust-proof glass (external) ing pad MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...
  • Page 537 Blower brush Final check (1) W.U.T. check (2) Peripheral and exterior clean- Drum cleaner/clean- ing pad (3) Image and paper through check (4) PM counter resetting (25 mode) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...
  • Page 538 Paper exit sec- (1) Paper exit roller Drum cleaner/clean- ing pad tion Final check (1) Paper through check (2) Exterior cleaning Drum cleaner/clean- ing pad MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...
  • Page 539 Stapler positioning jig *2 If abnormal sound is heard due to insufficient oil, lubricate it. Check to see that the upper and lower positions are properly set. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...
  • Page 540 (5) Staple unit Drum cleaner/clean Final check (1) Paper through check (2) Exterior cleaning Drum cleaner/clean- ing pad If abnormal sound is heard due to insufficient oil, lubricate it. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...
  • Page 541 Final check (1) Paper through check (2) Exterior cleaning Drum cleaner/clean- ing pad If abnormal sound is heard due to insufficient oil, lubricate it {Plus guard No.2}. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 REPLACEMENT...
  • Page 542 Drum cleaner/ Cleaning pad (3) Neutralization brush Blower brush (4) Sensors Blower brush Final check (1) Paper feeding check (2) Exterior cleaning Drum cleaner/ Cleaning pad MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 4-10 REPLACEMENT...
  • Page 543 Clea- Inspe- Lubric replaced ning ction -ation -ment Fixing unit (1) Fixing 56AA5305* (7155/7165) roller (U) 56AE5305* (7255/7272) (2) Heat insulating sleeve (U) Apply Tri flow oil 45405339* when replacing the sleeve. (3) Upper roller bearing 45407504* (4) Fixing roller (L)
  • Page 544 -ation -ment Drum unit (1) Toner control board unit 56AA-910* Charging corona (1) Charging corona 56AA-250* (7155/7165) unit (includin unit 56QA-250* PCL) (7255/7272) 2nd paper feed (1) TSL 56AA8307* (7155/7165) unit (2) Paper feed slide shaft holder...

  • Page 545: Radf [Df-316/Df-322]

    Service item of parts used Clea- Inspe- Lubric Replace replaced ning ction -ation -ment Drive unit (1) FNS up/down motor Actual replacement 13QE-115* count: 2.5 million feeds MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 4-13 REPLACEMENT...

  • Page 546: Fns [Fs-111]

    Clea- Inspe- Lubric Replace replaced ning ction -ation -ment Inside of (1) Feed clutch 56AA8201* Actual replacement count: 2 million machine feeds (2) Conveyance clutch 56AA8201* MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 4-14 REPLACEMENT...

  • Page 547: Pi [Pi-110]

    Punch section (1) Punch clutch Actual replacement 13NKK001* count: 1,000K times Punch scraps (2) Punch scraps conveyance Actual replacement motor 12GQ-417* conveyance sec- count: 1,000K times tion MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 4-15 REPLACEMENT...

  • Page 548: Main Body

    Ozone filter K (7155/7165) 55FA7301* 250,000 Ozone filter/M (7255/7272) 56QA1059* 250,000 Ozone filter/S (7255/7272) 56QA1057* 250,000 Developing suction filter (7155/7165) 56AA-735* 250,000 Developing suction filter (7255/7272) 56QA7320* 250,000 Fixing web unit 56AA-543* 250,000 Fixing claw /U 56AA5427* 250,000...
  • Page 549 55GA7551* 2,500,000 Registration bearing /U 55GA7552* 2,500,000 ADU registration roller /U 56AA5111* 2,500,000 ADU registration roller /L (7155/7165) 56AA5112* 2,500,000 ADU registration roller /L (7255/7272) 56QA5112* 2,500,000 TSL cover assembly 56AA-387* 2,500,000 Paper feed roller rubber/A (Tray 1 to 3)
  • Page 550 Qty Total count Actual count Parts count No. Periodic check (I) Punch clutch 13NKK001* 1,000,000 88,89,90 (Every 3,000,000 cop- Punch scraps conveyance motor 12GQ-417* 1,000,000 88,89,90 ies) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 4-18 REPLACEMENT...
  • Page 551 Stapler unit/F 13QE4241* 2,000,000 Stapler unit/R 13QE4241* 2,000,000 3. FS-111 Parts name Parts No. Actual count Parts count No. Stapler unit/F 13TQ4250* 2,000,000 Stapler unit/R 13TQ4250* 2,000,000 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 4-19 REPLACEMENT...

  • Page 552: Important Maintenance Parts

    • "SP" is indicated in front of the parts number of the important maintenance parts. Exercise care when installing the parts according to "3. Directions for disassembly and assembly" in this manual. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 4-20 REPLACEMENT...

  • Page 553: Copy Materials

    Charging wire cleaning block/U 56AA-253* φ Resin ring ( 2) (charging corona. transfer/separation 45AA2040* corona) Charging wire cleaning block (L) 56AA-254* Toner guide roller 56AA-213*(7155/7165) 56QA-213*(7255/7272) Cleaning blade 56AA2010* Discharging wire 56AA2609* Transfer cleaning assembly 56AA-264* Separation cleaning assembly 56AA-267*...

  • Page 554: Service Material List

    00GR00150 Molytherm grease 25 g For toner 00GR00200 Electricity lubricant guide roller 25 g 000V-19-0 Setting powder 25 g 000V-18-0 Cleaning pad 10 pc 1 pack MODEL MANUAL REVISED EDITION DATE PAGE METHOD 4-22 REPLACEMENT 7155/7165 SERVICE HANDBOOK Nov. 2001...

  • Page 555: Ce Tool List

    CE TOOL LIST CE TOOL LIST Tool No. Tool Name Appearance Quantity Remarks Thermostat PS jig(for upper 00M8-1-00 roller) Thermostat PS jig(for lower 56AEJG011 roller) 7050K0010 Temp. detection jig 7050K0020 Optics PS jig 00M6-2-00 Door switch jig 2set 2PCS/set 00VD-5000 New pyramid chart 4-23...
  • Page 556 CE TOOL LIST Tool No. Tool Name Appearance Quantity Remarks 00VC-2-00 Drum cover 00VD-1000 Blower brush 00VE-1003 Tester For DF-316 120A1052* PS shaft 2pc/set positioning For DF-316 120A9711* ADJ chart adjustment For DF-316 120A9712* White chart adjustment For FS-110/ 129XJG011 Stapler PS jig FS-210 adjustment...

  • Page 557: Electric Parts List

    ELECTRIC PARTS LIST...
  • Page 558 Blank page...

  • Page 559: Parts Layout Drawing

    PARTS LAYOUT DRAWING PARTS LAYOUT DRAWING [1] 7155/7165/7255/7272 Parts Layout Drawing 1. Read Section PS61 PS51 Scanner HP PS APS timing PS PS65 APS sensor/3 Scanner cooling fan PS63 APS sensor/1 PS64 APS sensor/2 Exposure lamp L1 INVB L1 converter A/D converter board 2.
  • Page 560 PARTS LAYOUT DRAWING 3. Charging Corona Section Pre-charging exposure lamp Charger cleaning motor 4. Drum Stand Section MC14 Toner recycle MC Separation claw SD TCSB Toner control sensor board...
  • Page 561 PARTS LAYOUT DRAWING 5. Tray 1, 2, 3 (7155/7165) MC4/6/8 PS2/8/14 Pre-registration MC/1, /2, /3 Tray upper limit PS/1, /2, /3 PS3/9/15 MC3/5/7 No paper PS/1, /2, /3 Paper feed MC /1, /2, /3 PS1/7/13 Paper feed PS/1, /2, /3...
  • Page 562 PS11 Horizontal conveyance set PS FM12 PS05 MC15 MC16 PS06 Developer Horizontal Horizontal Horizontal Horizontal cooling fan conveyance conveyance conveyance conveyance PS/L PS/R MC/L MC/R 7272fs5010 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-3-1 ADDITION...
  • Page 563 Vertical conveyance MC/1 Vertical conveyance PS/2 MC12 Vertical conveyance MC/2 PS27 Vertical conveyance PS/3 PS29 Vertical conveyance door open / close PS PS28 Vertical conveyance PS/4 7272fs5018 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-3-2 ADDITION...
  • Page 564 PARTS LAYOUT DRAWING 10. By-pass Feed Section PS34 PS32 Tray upper limit PS/BP Paper size PS/2-BP PS31 Paper size PS/1-BP Up/down motor/BP Paper size VR/BP PS35 Tray lower limit PS/BP PS36 Loop PS 11. Second Paper Feed Section PS43 Leading edge PS PS70 Paper mis-centering PS PS44...
  • Page 565 Transfer synchronization lamp (7255/7272) PS48 Transfer ADU paper PS43 PS37 synchronization Lamp conveyance PS/2 Leading edge PS Paper exit PS (7155/7165) PS46 Reverse/exit PS1 PS70 Paper mis-centering PS PS44 Registration PS PS42 Paper reverse PS PS50 PS45 PS49 ADU pre-registration PS...
  • Page 566 PARTS LAYOUT DRAWING 13. Fixing Section Fixing temperature/2 Fixing temperature/1 Thermostat/U Fixing heater lamp/3 Fixing heater lamp/1 PS30 Fixing exit PS Fixing heater lamp/2 Thermostat/L 14. Toner Supply Section Toner bottle motor Toner level detection sensor Toner supply motor...
  • Page 567 PARTS LAYOUT DRAWING 15. Write Section INDXSB Index sensor board Laser driver board Polygon motor PMDB Polygon driver board 16. Left Side of the Main Body Main power switch Write section cooling fan Paper exit motor PS37 Paper exit PS FM13 Power supply cooling fan Paper exit fan/R...
  • Page 568 PARTS LAYOUT DRAWING 17. Rear Side of the Main Body In the case of the 7155/7165 Developing motor Memory board Scanner motor C (K) SCDB Key counter Scanner drive board Image control board Main body cooling fan/1 Toner supply motor...
  • Page 569 (Europe/Taiwan only) 7272fs5012 MODEL MANUAL REVISED EDITION DATE PAGE METHOD MODEL MODEL MANUAL MANUAL REVISED EDITION REVISED EDITION DATE DATE PAGE PAGE METHOD METHOD 7155/7165/7255/7272 7155/7165 7155/7165 SERVICE HANDBOOK SERVICE HANDBOOK SERVICE MANUAL May 2002 Dec. 2003 5-8-1 ADDITION REPLACEMENT...
  • Page 570 Blank page...

  • Page 571: Df-316/Df-322 Parts Layout Drawing

    PARTS LAYOUT DRAWING [2] DF-316/DF-322 Parts Layout Drawing PS303 Original exit PS PS304 PS301 Original registration Last original PS PS/1 M301 PS310 Original feed motor Original size PS/1 PS302 PS309 Original size PS/2 Original size PS/2 MC301 VR301 Original feed MC Original size VR M302 Original conveyance...

  • Page 572: Lt-402/Lt-412 Parts Layout Drawing

    PARTS LAYOUT DRAWING [3] LT-402/LT-412 Parts Layout Drawing SW100 LT tray down switch PS108 MS101 LT no paper detection PS LT upper cover interlock MS1 PS110 PS107 LT jam door LT first paper feed PS open / close detection PS MS102 LT upper cover interlock MS2 SD100...

  • Page 573: Fs-110/Fs-210 Parts Layout Drawing

    Clincher rotation HP PS PS726 PS723 Folding passage PS Folding stopper HP PS (Only for FS-210) (Only for FS-210) MODEL MODEL MANUAL MANUAL REVISED EDITION REVISED EDITION DATE DATE PAGE PAGE METHOD METHOD 7155/7165 7155/7165 SERVICE HANDBOOK SERVICE HANDBOOK May 2002 REPLACEMENT 5-11...
  • Page 574 PARTS LAYOUT DRAWING M705 Alignment motor/U PS711 Stapler movement HP PS M706 Stapler rotation motor SD706 Three-folding gate SD PS713 PS725 Stapler rotation HP PS Folding exit PS PS729 LED729 Folding full PS Folding full LED Stapler/R/F SW702 Staple SW/R SW704 Staple SW/F SW701...
  • Page 575 M720 Folding conveyance PS703 motor Tray lower limit PS (FS-210 only) M703 Tray up/down motor Old type New type M703 Tray up/down motor FS-110 FS-210 7272fs5004 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-13 REPLACEMENT...

  • Page 576: Parts Layout Drawing

    MS201 PS203 PI interlock MS PS209 Sheet set PS/U Tray upper limit PS/L PS208 PS207 Sheet set PS/L No sheet PS/L VR202 FRONT Sheet size VR/L MODEL MANUAL REVISED EDITION DATE PAGE METHOD REPLACEMENT 7155/7165 SERVICE HANDBOOK May 2002 5-14...

  • Page 577: Pk-110/Pk-120 Parts Layout Drawing

    Punch shift HP PS (PK-120 only) M802 PKDB Punch shift motor Punch drive board (PK-120 only) (PK-120 only) FRONT MODEL MODEL MANUAL MANUAL REVISED EDITION REVISED EDITION DATE DATE PAGE PAGE METHOD METHOD 7155/7165 7155/7165 SERVICE HANDBOOK SERVICE HANDBOOK May 2002 REPLACEMENT 5-15...

  • Page 578: Pz-108/Pz-109 Parts Layout Drawing

    1st stopper HP PS Gate SD/U Conveyance motor Conveyance encoder PS Exit PS Gate SD/L 2nd stopper motor Registration motor 2nd stopper HP PS FRONT 7272fs5032 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-15-1 ADDITION...

  • Page 579: Parts Layout Drawing

    HP PS PS40 Cartridge detection PS14 Staple detection PS/F Stapler- PS/R PS39 rotation PS38 Cartridge detection HP PS Stapler ready PS/F PS/R PS41 Stapler ready PS/R 7272fs5023 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-15-2 ADDITION...
  • Page 580 Roller-shift motor PS18 Roller-shift HP PS Staple paper exit upper limit PS Tray upper limit PS PS15 Tray no-paper detection PS Tray lower limit PS 7272fs5024 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-15-3 ADDITION...
  • Page 581 Tray upper limit PS M701 (Conveyance motor) PS702 Shift HP PS M703 Shift motor SFCB SF control board M702 (Tray up/down motor) PS704 Tray lower limit PS 7272fs5005 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-15-4 ADDITION...

  • Page 582: Connector Layout Drawing

    CONNECTOR LAYOUT DRAWING CONNECTOR LAYOUT DRAWING [1] 7155/7165/7255/7272 Connector Lay- out Drawing 1. Printer control board In the case of the 7155/7165 206 (W: 20pin) 211 (W: 7pin) 35 (W: 5pin) 202 (W: 22pin) 208 (GY: 16pin) 212 (W: 24pin)
  • Page 583 227 (W: 28pin) 203 (W: 32pin) 216 (W: 10pin) 240 (N.C.) 204 (W: 34pin) 37 (N.C.) 200 (W: 9pin) 235 (W: 11pin) 239 (W: 4pin) 238 (N.C.) 7272fs5013 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-16-1 ADDITION...
  • Page 584 CONNECTOR LAYOUT DRAWING 2. Image control board In the case of the 7155/7165 128 (W: 20pin) 132 (GY: 5pin) 110 (W: 40pin) 130 (W: 22pin) 103 (W: 4pin) 129 (W: 40pin) 100 (W: 4pin) 118 (N.C.) 104 (W: 3pin) 105 (W: 3pin)
  • Page 585 129 (W: 40pin) 125 (4pin) USB 113 IP-511/IP-511Type-A 112 HD-105 139 (9pin) KRDS 140 (GY: 11pin) 137 (GY: 7pin) 135 (W: 26pin) 122 (N.C.) 121 (N.C.) 7272fs5014 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-16-3 ADDITION...
  • Page 586 Blank page...
  • Page 587 CONNECTOR LAYOUT DRAWING 3. ADU drive board In the case of the 7155/7165 401 (W: 2pin) 400 (W: 7pin) 407 (W: 2pin) 402 (W: 40pin) 404 (GY: 6pin) 406 (GY: 9pin) 403 (W: 12pin) 410 (GY: 13pin) 405 (W: 20pin) 414 (N.C.)
  • Page 588 624 (GY: 15pin) 614 (W: 22pin) 625 (GY: 7pin) 612 (W: 30pin) 610 (GY: 16pin) 613 (W: 7pin) (7155/7165) 613 (GY: 7pin) (7255/7272) 623 (W: 6pin) 600 (W: 10pin) 611 (W: 40pin) 7272fs5016 6. High voltage unit 322 (W: 2pin)
  • Page 589 CONNECTOR LAYOUT DRAWING 9. Operation board/1 13. Laser driver board 153 (W: 3pin) 152 (W: 4pin) 151 (W: 14 pin) 180 (W: 22pin) (7155/7165) 150 (W: 11pin) 180 (W: 24pin) (7255/7272) 158 (W: 2pin) 156 (W: 2pin) 7272fs5034 14. Polygon drive board 10.

  • Page 590: Lt-402/Lt-412 Connector Layout Drawing

    9 (W: 28pin) (FS-210 Only) (FS-210 Only) 2 (W: 5pin) (Old Type) 2 (W: 22pin) 3 (W: 28pin) (FS-210 Only) 2 (W: 14pin) 7272fs5002 (New Type) 7272fs5001 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-20 REPLACEMENT...

  • Page 591: Connector Layout Drawing

    2. PI operation board (GY:12pin) [5] PK-110/PK-120 Connector Layout Drawing 1. Punch drive board (PK-110) (W:5pin) (W:2pin) (W:9pin) (W:40pin) MODEL MODEL MANUAL MANUAL REVISED EDITION REVISED EDITION DATE DATE PAGE PAGE METHOD METHOD 7155/7165 7155/7165 SERVICE HANDBOOK SERVICE HANDBOOK May 2002 5-21 REPLACEMENT...

  • Page 592: Pz-108/Pz-109 Connector Layout Drawing

    [6] PZ-108/PZ-109 Connector Layout Drawing 1. PZ control board (W:13pin) (W:8pin) DIP switches (W:14pin) (W:12pin) (W:2pin) (B:14pin) (W:6pin) (N.C.) Example of switch settings (W:12pin) 7075 7085 7165/7155 7255/7272 (N.C.) (W:24pin) (W:4pin) 7272fs5035 (W:4pin) (W:3pin) MODEL MANUAL REVISED EDITION DATE PAGE METHOD MODEL...

  • Page 593: Connector Layout Drawing

    CN104 (W: 7pin) CN105 (W: 4pin) CN100 (W:9pin) CN101 (W:8pin) DIP SW Function SW100 No setting Setting of test action Starting up the test action 7272fs5003 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-21-2 ADDITION...

  • Page 594: Jam Code List

    ON. remove the jammed J11-2 PS1 (paper feed /1) is ON and paper. (7155/7165) Pull out the horizon- PS36 (loop) is OFF for the pre- tal conveyance unit defined time after MC4 (pre-regis- and remove the tration MC/1) has turned ON.
  • Page 595 PS26 (vertical conveyance /2) is remove the jammed OFF for the predefined time after paper. MC6 (pre-registration MC/2) has turned ON. (7155/7165) PS7 (paper feed /2) is ON and PS25 (vertical conveyance /1) is OFF for the predefined time after MC6 (pre-registration MC/2) has turned ON.
  • Page 596 ADU exit veyance (tray within the predefined time after guide plate, and PS1 (paper feed PS/1) has turned ON. (7155/7165) remove the jammed paper. PS36 (loop) does not turn ON within the predefined time after PS6 (horizontal conveyance /R) has turned ON.
  • Page 597 PS26 (vertical conveyance /2) conveyance does not turn ON within the pre- (tray 2) defined time after PS7 (paper feed /2) has turned ON.(7155/7165) PS36 (loop) does not turn ON within the predefined time after MC6 (pre-registration MC/2) has turned ON. (7255/7272)
  • Page 598 PS37 has turned ON. J32-6 PS37 (paper exit) is turned ON while in the idling status. J32-8 PS42 (paper reverse) is turned ON while in the idling status. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-26 REPLACEMENT...
  • Page 599 OFF within the pre- defined time since it has turned ON when processing the reverse paper feed for copying the back side of the double-side original. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-27 REPLACEMENT...
  • Page 600 J65-2 PS306 (original conveyance) is turned ON while in the idling sta- tus. J65-4 PS303 (original exit) is turned ON while in the idling status. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-28 REPLACEMENT...
  • Page 601 OFF within the predefined time after M713 (stacker entrance) has turned ON. FS-111 PS5(satcker conveyance pas- sage) is not turned OFF within the specific time after it turns ON. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-29 REPLACEMENT...
  • Page 602 OFF within the predefined time since it has turned ON. FS-110/210 J72-27 PS720 (stacker no paper) is turned OFF when stapling starts. (Old type only) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-8-1 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-30 REPLACEMENT...
  • Page 603 ON. J72-42 During the 2nd Z-fold exit opera- tion, PS1 (passage) does not turn OFF within the predefined time since it has turned ON. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-8-2 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-31 REPLACEMENT...
  • Page 604 PS201 (PI passage /U) has turned ON. J72-51 PS704 (FNS entrance) does not turn ON within the predefined time after PS206 (PI passage /L) has turned ON. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-32 REPLACEMENT...
  • Page 605 PS732/733 (clincher HP /R, /F) do not turn ON within the predefined time after M709/714 (stapler/R, /F) and M710/715 (clincher /R, /F) have turned ON. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-10 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-33 REPLACEMENT...
  • Page 606 PS725 (folding exit) is turned ON while in the idling status. PI-110 J73-14 PS206 (PI passage /L) is turned ON while in the idling status. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-11 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-34 REPLACEMENT...
  • Page 607 ON within the predefined time after PS49 (ADU decelera- tion) has turned ON again. J94-3 PS49 (ADU deceleration) is turned ON while in the idling status. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-12 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-35 REPLACEMENT...

  • Page 608: Error Code List

    PS2 (tray upper limit/1) F18-11 PS2 (tray upper limit/1) does not turn Error code is not dis- ON within 20 seconds (7155/7165)/ 36 played on the operation seconds (7255/7272) since the lifting panel. It is displayed motion triggered by activating M16...
  • Page 609 F21-06 The lock signal for M10 (transfer/sep- aration cleaning) is detected within 2 seconds since the return motion (back to front) of M10 has started. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-14 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-37 REPLACEMENT...
  • Page 610 PRCB (printer control board) have passed since M2 (drum) has turned ON. PCL connec- E23-04 Failure of PCL connection is detected. tion abnor- (7255/ mality 7272) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-15 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-38 REPLACEMENT...
  • Page 611 If this immediately and turns error is detected 10 successive times, OFF RL1 (main). the corresponding error code is dis- played. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-16 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-39 REPLACEMENT...
  • Page 612 2 seconds from the OFF/ON operation. F32-02 An error for FIXFAN1_EM signal is FM8 (main cooling /2) (7155/ detected when 2 seconds have PRCB (printer control board) 7165) passed since FM8 (main unit cooling / 2) has turned ON. The error does not clear after 2 seconds from the OFF/ON operation.
  • Page 613 25 seconds from the PMDB (polygon drive board) switch drive when M15 starts or when PRCB (printer control board) switching the rotation speed. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-18 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-41 REPLACEMENT...
  • Page 614 E46-12 Compression of the read image and ICB (image control board) decompression in the page memory are not completed within the specified time after negation of SVV. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-19 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-42 REPLACEMENT...
  • Page 615 E46-23 During image read, SVV is not turned ICB (image control board) OFF within the specified time and therefore preparation for next page scanning cannot be started. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-20 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-43 REPLACEMENT...
  • Page 616 E46-35 Dual page memory area error Due to the image area abnormality on the memory, image is not decom- pressed on the memory. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-21 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-44 REPLACEMENT...
  • Page 617 MU-401/402 contact OFF. failure E46-83 The message reception event is unde- fined. E46-90 The access to the memory is illegal. ICB (image control board) MU-401/402 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-22 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-45 REPLACEMENT...
  • Page 618 Initial data is not received from ICB (image control board) within 10 sec- onds after power-on. E50-11 Image control board communication ICB (image control board) serial reception error detection fault. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-23 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-46 REPLACEMENT...
  • Page 619 The machine and FNS stop immedi- SFCB (SF control board) (SF-101) ately. RL (main) is turned OFF. M702 (tray up/down) PS703 (tray upper limit) PS704 (tray lower limit) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-23-1 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-47 REPLACEMENT...
  • Page 620 After M722 (stapler /R) starts opera- FNS CB (FNS control board) (FS-111) tion, PS731 (stapler HP/R) does not M722 (stapler /R) turn ON within the predefined time. PS731 (stapler HP/R) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-24 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-47-1 ADDITION...
  • Page 621 FNSCB (FNS control board) abnormality ON within the specified time after PKDB (PK drive board) M802 (punch shift) operation has been M801 (punch) started. PS803 (punch HP) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 5-25 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-47-2 ADDITION...
  • Page 622 FNS CB (FNS control board) CB (FNS control board) when sub- abnormality CPU receives data. F77-92 Communication abnormality in FNS CB (FNS control board) when main CPU receives data. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-47-3 ADDITION...
  • Page 623 ON of FM10. 2 ADUDB (ADU drive board) seconds after turning FM10 OFF and PRCB (Printer control board) ON again, the signal is still abnormal. MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-47-4 ADDITION...
  • Page 624 Fold, stitch and fold, three-fold F71-41 to 43 PI abnormality F77-46,52,53 Stacker fan, PZ folding abnormality Z-folding F77-44,47,55 PK, PZ punch shift motor abnormality PK, PZ MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-47-5 ADDITION...
  • Page 625 Blank page MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-47-6 ADDITION...

  • Page 626: Timing Chart

    TIMING CHART TIMING CHART [1] 7165 Timing Chart (1) A4, life size, 1-1 mode, Tray 1, reversed paper exit, non AE, 2 sets 5-48...

  • Page 627: Timing Chart (2)

    TIMING CHART [2] 7165 Timing Chart (2) A4, life size, 1-2 mode, Tray 1, 2 sets 5-49...

  • Page 628: Timing Chart (1)

    TIMING CHART [3] 7272 Timing Chart (1) A4, life size, 1-1 mode, Tray1, face-up paper exit, non AE, 2 sets 7272fs5019 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-49-1 ADDITION...

  • Page 629: Timing Chart (2)

    TIMING CHART [4] 7272 Timing Chart (2) A4, life size, 1-2 mode, Tray1, 2 sets 7272fs5020 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-49-2 ADDITION...

  • Page 630: Df-316/Df-322 Timing Chart (1)

    TIMING CHART [5] DF-316/DF-322 Timing Chart (1) A4, 3 originals (single side) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-50 REPLACEMENT...

  • Page 631: Df-316/Df-322 Timing Chart (2)

    TIMING CHART [6] DF-316/DF-322 Timing Chart (2) A4, 3 originals (double side) MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-51 REPLACEMENT...
  • Page 632 TIMING CHART [7] LT-402/LT-412 Timing Chart A4, life size, 1-1 mode, non AE, 2 sets 5-52...

  • Page 633: Fs-110/Fs-210 Timing Chart (1)

    TIMING CHART [8] FS-110/FS-210 TIming Chart (1) Sort, A4, 2 originals (single side), 3 sets 5-53...

  • Page 634: Fs-110/Fs-210 Timing Chart (2)

    TIMING CHART [9] FS-110/FS-210 Timing Chart (2) 2 staples (flat), A4, 2 originals (single side), 6 sheets (single side) 5-54...

  • Page 635: Fs-110/Fs-210 Timing Chart (3)

    TIMING CHART [10] FS-110/FS-210 Timing Chart (3) Stitch and fold, A4, 2 originals (single side), 6 sheets (single side) 5-55...

  • Page 636: Fs-110/Fs-210 Timing Chart (4)

    TIMING CHART [11] FS-110/FS-210 Timing Chart (4) Three-folding/A4R/3 sheets of originals/2 sets setting/single side MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Nov. 2001 5-56 ADDITION...

  • Page 637: Timing Chart

    [12] PI-110 Timing Chart PI automatic paper feed (bottom) /2 staples (flat) /A4/2 sheets of original/2 sets setting/single side MODEL MODEL MANUAL MANUAL REVISED EDITION REVISED EDITION DATE DATE PAGE PAGE METHOD METHOD 7155/7165 7155/7165 SERVICE HANDBOOK SERVICE HANDBOOK May 2002 5-56-1 ADDITION...
  • Page 638 TIMING CHART [13] PK-110 Timing Chart Punch/2 staples (flat) /A4/2 sheets of original/3 sets setting/single side MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165 SERVICE HANDBOOK Nov. 2001 5-56-2 ADDITION...

  • Page 639: Timing Chart

    TIMING CHART [14] PK-120 Timing Chart Punch/2 staples (flat) /A4/2 sheets of original/3 sets setting/single side MODEL MODEL MANUAL MANUAL REVISED EDITION REVISED EDITION DATE DATE PAGE PAGE METHOD METHOD 7155/7165 7155/7165 SERVICE HANDBOOK SERVICE HANDBOOK May 2002 5-56-3 ADDITION...

  • Page 640: Pz-108/Pz-109 Timing Chart

    TIMING CHART [15] PZ-108/PZ-109 Timing Chart Z-folding + punch mode, A3, 3 originals (single side) 7272fs5036 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-56-4 ADDITION...

  • Page 641: Timing Chart (2)

    TIMING CHART [16] FS-111 Timing Chart (1) Sort, A4, 2 originals, 3 sets, 1-1 7272fs5029 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-56-5 ADDITION...
  • Page 642 TIMING CHART [17] FS-111 Timing Chart (2) Flat, A4, 2 originals, 3 sets, 1-1 7272fs5030 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-56-6 ADDITION...

  • Page 643: Timing Chart

    TIMING CHART [18] SF-101 Timing Chart Sort, A4, 2 originals, 2 sets, 1-1 7272fs5021 MODEL MANUAL REVISED EDITION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-56-7 ADDITION...
  • Page 644 Blank page...

  • Page 645: Overall Wiring Diagram

    Example) Direction of signal flow 5VDC Connector Faston Crimp Relay connector SGND Signal types are as follows: High level Low level Analog signal/Unspecified signal Pulse signal MODEL MANUAL REVISED REVISION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-57 REPLACEMENT...

  • Page 646: Lt-402/Lt412 Overall Wiring Diagram

    LT FIRST PAPER FEED MS101 766-2-1 Direction of CN721-15 CONT CLUTCH signal flow 5VDC 767-1-2 773-10-1 SGND CN721-16 24V LT FIRST PAPER FEED SD100 767-2-1 773-9-2 CN721-17 CONT SOLENOID MODEL MANUAL REVISED REVISION DATE PAGE METHOD SERVICE HANDBOOK 7155/7165 Nov.2001 5-58 REPLACEMENT...

  • Page 647: Overall Wiring Diagram

    Direction of signal flow 5VDC Faston Connector Crimp Relay connector SGND Signal types are as follows: High level Low level Analog signal/Unspecified signal Pulse signal FNS CB MODEL MANUAL REVISED REVISION DATE PAGE METHOD SERVICE HANDBOOK 7155/7165 May 2002 5-59 REPLACEMENT...

  • Page 648: Overall Wiring Diagram

    [4] PK-110 Overall Wiring Diagram CN62-A1 5V CN63-A1 5V CN62-A2 5V CN63-A2 5V CN62-A3 NC CN63-A3 NC CN551-1 L CN65-1 M801 DRV1 CN62-A4 NC CN63-A4 NC M801 PUNCH MOTOR CN551-2 L CN65-2 M801 DRV2 CN62-A5 NC CN63-A5 NC CN62-A6 NC CN63-A6 NC CN62-A7 NC CN63-A7 NC...

  • Page 649: Overall Wiring Diagram

    Direction of signal flow 5VDC Connector Faston Crimp Relay connector SGND Signal types are as follows: High level Low level Analog signal/Unspecified signal FNS CB Pulse signal MODEL MANUAL REVISED REVISION DATE PAGE METHOD SERVICE HANDBOOK 7155/7165 May 2002 5-61 ADDITION...

  • Page 650: Overall Wiring Diagram

    2.Wiring symbols in the figure are as follows. Analog signal/Unspecified signal [Symbol] indicates the direction of signal flow. Pulse signal 50-1 Example) Direction of MODEL MANUAL REVISED REVISION DATE PAGE METHOD signal flow 5VDC Faston SERVICE MANUAL Connector 7155/7165/7255/7272 Dec. 2003 5-62 ADDITION Crimp Relay connector SGND...

  • Page 651: Overall Wiring Diagram

    Faston Connector Crimp Relay connector SGND Signal types are as follows: High level Low level Analog signal/Unspecified signal Pulse signal FNS CB MAIN BODY STAPLER/R STAPLER/F MODEL MANUAL REVISED REVISION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-63 ADDITION...
  • Page 652 CN106-3 MCTS Direction of CN201-4 signal flow CN106-4 MRXD CN101-7 TXD 5VDC CN201-5 CN106-5 SGND CN101-2 GND SGND CN201-6 CN106-6 MRTS1 CN101-8 CTS SFCB MAIN BODY MODEL MANUAL REVISED REVISION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 5-64 ADDITION...
  • Page 653 APPENDIX [1] 7155/7165 Overall Wiring Diagram INTER LOCK INTER LOCK MS/R MS/L FT40 FT41 93-3 83-3 FIXING MOTOR 93-5 82-1 AC220V TO 240V : INLET MAIN POWER ADUDB POWER PLUG SWITCH FT10 AC100V FT11 FT37 FT38 TONER BOTTLE MOTOR 93-6...

  • Page 654: Appendix

    APPENDIX [1] 7155/7165 Overall Wiring Diagram 1/4 AC220V TO 240V : INLET MAIN POWER POWER PLUG SWITCH FT10 AC100V FT11 FT37 FT38 SERIES CBR1 FT35 FT11 1-2 ACIN(L) FT33 1-3 ACIN(L) MAIN 1-1 ACIN(L) RELAY POWER SUPPLY COOLING FAN FM13...
  • Page 655 APPENDIX [1] 7155/7165 Overall Wiring Diagram 2/4 INTER LOCK INTER LOCK MS/R MS/L FT40 FT41 93-3 83-3 FIXING MOTOR 93-5 82-1 ADUDB TONER BOTTLE MOTOR 93-6 82-2 15-8 N.C. DCPS 2/2 15-9 N.C. DEVELOPING MOTOR 15-14 NMI ICB PRCB 15-10 REM/2...
  • Page 656 APPENDIX [1] 7155/7165 Overall Wiring Diagram 3/4 TRAY3 TRAY4 (JAPAN ONLY) TRAY1 TRAY2 SCDB 2/2 DF I/F SCANNER I/F PS01 PS02 PS03 PS04 PS05 PS06 PS13 PS14 PS15 PS16 PS17 PS18 PS19 PS20 PS21 PS22 PS23 PS24 PS07 PS08 PS09...
  • Page 657 APPENDIX [1] 7155/7165 Overall Wiring Diagram 4/4 EXIT VERTICAL PAPER FEED FIXING BY-PASS FT45 FT44 FT48 FT47 FT47 FT50 PS37 FS-110/FS-210 PS31 PS32 PS33 PS34 PS35 PS36 PS25 PS26 PS27 PS28 PS29 PS30 (OPTION) 255-6-1 218-1 SOUT 255-5-2 218-2 SGND...
  • Page 658 Direction of signal flow 5VDC Connector Faston Crimp Relay connector SGND Signal types are as follows: REGISTRATION PAPER High level CONVEYANCE Low level Analog signal/Unspecified signal Pulse signal MODEL MANUAL REVISED REVISION DATE PAGE METHOD 7155/7165/7255/7272 SERVICE MANUAL Dec. 2003 ADDITION...

  • Page 659: 7255/7272 Overall Wiring Diagram

    APPENDIX [2] 7255/7272 Overall Wiring Diagram 1/4 COIL1 AC100V COIL JAPAN ONLY MAIN POWER EUROPE SWITCH HEATER SWITCH ONLY POWER PLUG 18-1 5V3 18-2 LP_CONT FT37 FT38 FT63 FT64 ACDB 17-1 AC_OUT 17-2 AC_IN CBR1 FT11 AC120/127V 1-2 ACIN (L) 1-3 ACIN (L) 1-1 ACIN (L) FM11...
  • Page 660 INTER LOCK INTER LOCK APPENDIX MS/R MS/L 88-1A 88-1B 88-1A 88-1B FT40 FT41 [2] 7255/7272 Overall Wiring Diagram 2/4 93-3 83-3 24V2 FIXING MOTOR 93-5 82-1 88-2A 88-2A 88-2B 88-2B ADUDB PRCB PGND ADUDB 93-6 82-2 TONER BOTTLE MOTOR 24V2 DEVELOPING MOTOR ADUDB PRCB...
  • Page 661 APPENDIX TRAY4 [2] 7255/7272 Overall Wiring Diagram 3/4 TRAY1 (LT1500) TRAY2 (LT1000) TRAY3 Horizontal conveyance Horizontal Horizontal Horizontal Horizontal Horizontal conve- conve- conve- conve- conve- yance yance yance yance yance set PS PS/L PS/R MC/L MC/R PS01 PS02 PS03 PS04 PS07 PS08 PS09 PS10 PS13 PS14...
  • Page 662 APPENDIX EXIT [2] 7255/7272 Overall Wiring Diagram 4/4 VERTICAL PAPER FEED BY-PASS PS37 PS31 PS32 PS33 PS34 PS35 PS36 PS25 PS26 PS27 PS28 PS29 PS12 PRCB 2/2 72-1 72-2 24 24 71-8-1 71-7-2 17 17 13 13 71-6-3 18 18 14 14 71-5-4 71-4-5...

  • Page 663: Fs-110/Fs210 Overall Wiring Diagram

    The solid black circle ( ) among the connector symbols ( ) indicates the direction of signal flow. Example) Direction of signal flow 5VDC SGND FS-210 ONLY MODEL MANUAL REVISED REVISION DATE PAGE METHOD SERVICE MANUAL 7155/7165/7255/7272 Dec. 2003 REPLACEMENT...

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