Utax PF 470 Service Manual
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Utax PF 470 Service Manual

Utax PF 470 Service Manual

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Service
Manual
Paper Feeder
PF 470
PF 471
First Edition
Date: 22-11-2010
3NNSM060

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Summary of Contents for Utax PF 470

  • Page 1 Service Manual Paper Feeder PF 470 PF 471 First Edition Date: 22-11-2010 3NNSM060...
  • Page 2 Service Manual Paper Feeder PF 470 PF 471 First Edition Date: 22-11-2010 3NNSM060...
  • Page 3 CAUTION RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS. It may be illegal to dispose of this battery into the municipal waste stream. Check with your local solid waste officials for details in your area for proper disposal. ATTENTION IL Y A UN RISQUE D’EXPLOSION SI LA BATTERIE EST REMPLACEE PAR UN MODELE DE TYPE INCORRECT.
  • Page 4 Revision history Revision Date Replaced pages Remarks...
  • Page 5 This page is intentionally left blank.
  • Page 6 Safety precautions This booklet provides safety warnings and precautions for our service personnel to ensure the safety of their customers, their machines as well as themselves during maintenance activities. Service personnel are advised to read this booklet carefully to familiarize themselves with the warnings and precautions described here before engaging in maintenance activities.
  • Page 7 Safety warnings and precautions Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property. These symbols are described below: DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol.
  • Page 8 1. Installation Precautions WARNING • Do not use a power supply with a voltage other than that specified. Avoid multiple connections to one outlet: they may cause fire or electric shock. When using an extension cable, always check that it is adequate for the rated current...................... •...
  • Page 9 2. Precautions for Maintenance WARNING • Always remove the power plug from the wall outlet before starting machine disassembly....• Always follow the procedures for maintenance described in the service manual and other related brochures............................• Under no circumstances attempt to bypass or disable safety features including safety mechanisms and protective circuits.
  • Page 10 • Do not remove the ozone filter, if any, from the copier except for routine replacement....... • Do not pull on the AC power cord or connector wires on high-voltage components when removing them; always hold the plug itself......................•...
  • Page 11 This page is intentionally left blank.

  • Page 12: Table Of Contents

    3NN/3NP CONTENTS 1-1 Specifications 1-1-1 Specifications ........................1-1-1 1-1-2 Parts names .......................... 1-1-2 (1) Paper feeder (single cassette)..................1-1-2 (2) Paper feeder (double cassette) ..................1-1-3 1-1-3 Machine cross section ......................1-1-4 (1) Paper feeder (single cassette)..................1-1-4 (2) Paper feeder (double cassette) ..................1-1-4 1-2 Installation 1-2-1 Installation environment......................
  • Page 13 3NN/3NP 2-2 Electrical Parts Layout 2-2-1 Electrical parts layout ......................2-2-1 (1) Paper feeder (single cassette)..................2-2-1 (2) Paper feeder (double cassette) ..................2-2-2 2-3 Operation of the PWBs 2-3-1 PF main PWB ........................2-3-1 2-4 Appendixes 2-4-1 Appendixes ..........................2-4-1 (1) Wiring diagram .........................

  • Page 14: Specifications

    3NN/3NP 1-1 Specifications 1-1-1 Specifications Item Specifications Paper feeder (single cassette) Paper feeder (double cassette) Paper weight 52 to 163 g/m Paper type Plain, Recycled, Color (Colour) A3,A4R,A4, A5R, B5R,B5,Folio,Ledger, LetterR, Letter, Legal, Statement, Paper size Executive, Oficio II, 8K, 16KR,16K 500 sheets (80 g/m ) ×...

  • Page 15: Parts Names

    3NN/3NP 1-1-2 Parts names (1) Paper feeder (single cassette) Figure 1-1-1 1. Cassette 2 6. Positioning pins 2. Paper type window 7. Interface connector 3. Box cover 8. Right cover 3 4. Paper width guides 9. Cabinet 5. Paper length guide 1-1-2...

  • Page 16: Paper Feeder (Double Cassette)

    3NN/3NP (2) Paper feeder (double cassette) Figure 1-1-2 1. Cassette 2 5. Paper length guide 2. Cassette 3 6. Positioning pins 3. Paper type windows 7. Interface connector 4. Paper width guides 8. Right cover 3 1-1-3...

  • Page 17: Machine Cross Section

    3NN/3NP 1-1-3 Machine cross section (1) Paper feeder (single cassette) Paper path Figure 1-1-3 (2) Paper feeder (double cassette) Paper path Figure 1-1-4 1-1-4...

  • Page 18: Installation Environment

    3NN/3NP 1-2 Installation 1-2-1 Installation environment Installation location (Be based on the machine establishment place.) Avoid direct sunlight or bright lighting. Ensure that the photoconductor will not be exposed to direct sunlight or other strong light when removing paper jams. Avoid locations subject to high temperature and high humidity or low temperature and low humidity;...

  • Page 19: Unpacking

    3NN/3NP 1-2-2 Unpacking (1) Unpacking Paper feeder (single cassette) Figure 1-2-1 1. Paper feeder 7. Upper left back pad 13. Plastic bag (70 × 110) 2. Outer case 8. Upper right front pad 14. Installation guide etc. 3. Inner case 9.

  • Page 20: Unpacking Paper Feeder (Double Cassette)

    3NN/3NP (2) Unpacking Paper feeder (double cassette) Figure 1-2-2 1. Paper feeder 7. Upper left back pad 13. Plastic bag(70 × 110) 2. Outer case 8. Upper right front pad 14. Installation guide etc. 3. Inner case 9. Upper right back pad 15.

  • Page 21: Removing The Tapes

    3NN/3NP (3) Removing the tapes 1. Remove four tapes. Tape Tape Tape Tape Figure 1-2-3 1-2-4...

  • Page 22: Maintenance Mode

    3NN/3NP 1-3 Maintenance Mode 1-3-1 Maintenance mode The machine is equipped with a maintenance function which can be used to maintain and service the machine. (1) Executing a maintenance item Start Enter “10871087” using Maintenance mode is entered. the numeric keys. Enter the maintenance item The maintenance item is selected.

  • Page 23: Maintenance Modes Item List

    3NN/3NP (2) Maintenance modes item list Item Initial Section Content of maintenance item setting General U019 Displaying the ROM version Drive, paper U034 Adjusting the print start timing feed and Leading edge registration 0/0/0/0/0/0 paper con- Center line 0/0/0/0/0 veying sys- U051 Adjusting the deflection in the paper 0/0/0/0...

  • Page 24: Contents Of The Maintenance Mode Items

    3NN/3NP (3) Contents of the maintenance mode items Item No. Description U019 Displaying the ROM version Description Displays the part number of the ROM fitted to each PWB. Purpose To check the part number or to decide, if the newest version of ROM is installed. Method 1.
  • Page 25 3NN/3NP Item No. Description U034 Adjusting the print start timing Description Adjusts the leading edge registration or center line. Purpose Make the adjustment if there is a regular error between the leading edges of the copy image and original. Make the adjustment if there is a regular error between the center lines of the copy image and original.
  • Page 26 3NN/3NP Item No. Description U034 5. Change the setting value using the cursor left/right keys or numeric keys. For output example 1, increase the value. For output example 2, decrease the value. Leading edge registration (20 ± 1.5 mm) Correct image Output Output example 1...
  • Page 27 3NN/3NP Item No. Description U034 5. Change the setting value using the cursor left/right keys or numeric keys. For output example 1, increase the value. For output example 2, decrease the value. Center line of printing (within ± 0.5 mm) Correct image Output Output...
  • Page 28 3NN/3NP Item No. Description U051 Adjusting the deflection in the paper Description Adjusts the deflection in the paper at the registration roller. Purpose Make the adjustment if the leading edge of the copy image is missing or varies randomly, or if the copy paper is Z-folded.
  • Page 29 3NN/3NP Item No. Description U341 Specific paper feed location setting for printing function Description Sets a paper feed location specified for printer output (only if a printer kit is installed). Purpose To use a paper feed location only for printer output. A paper feed location specified for printer output cannot be used for copy output.
  • Page 30 3NN/3NP Item No. Description U901 Checking copy counts by paper feed locations Description Displays or clears copy counts by paper feed locations. Purpose To check the time to replace consumable parts. Also to clear the counts after replacing the con- sumable parts.
  • Page 31 3NN/3NP This page is intentionally left blank. 1-3-10...

  • Page 32: Paper Misfeed Detection

    3NN/3NP 1-4 Troubleshooting 1-4-1 Paper misfeed detection (1) Paper misfeed indication When a paper misfeed occurs, the machine immediately stops printing and displays the paper misfeed mes- sage on the operation panel. To remove paper misfed in the machine, pull out the cassette, open the right cover.
  • Page 33 3NN/3NP Code Contents Conditions location* 0502 No paper feed from cassette PF feed sensor 1 (PFFS1) does not turn on during paper feed from cassette 2 (Retry 1 times). 0503 No paper feed from cassette PF feed sensor 2 (PFFS2) does not turn on during paper feed from cassette 3 (Retry 1 times).
  • Page 34 3NN/3NP Code Contents Conditions location* 4912 Bridge conveying sensor 1 The bridge conveying sensor 1 (BRCS1) does not stay jam turn off during paper feed from cassette 2. 4913 The bridge conveying sensor 1 (BRCS1) does not turn off during paper feed from cassette 3. 5002 Bridge conveying sensor 3 The bridge conveying sensor 3 (BRCS3) does not...

  • Page 35: Self-Diagnostic Function

    3NN/3NP 1-4-2 Self-diagnostic function (1) Self-diagnostic function This machine is equipped with self-diagnostic function. When a problem is detected, the machine stops print- ing and display an error message on the operation panel. An error message consists of a message prompting a contact to service personnel and a four-digit error code indicating the type of the error.
  • Page 36 3NN/3NP Check procedures/ Code Contents Causes corrective measures 1800 Paper feeder communica- Improper installa- Follow installation instruction carefully again. tion error tion paper feeder. A communication error is Defective connec- Reinsert the connector. Also check for conti- detected 10 times in succes- tor cable or poor nuity within the connector cable.

  • Page 37: Electric Problems

    3NN/3NP 1-4-3 Electric problems If the part causing the problem was not supplied, use the unit including the part for replacement. Troubleshooting to each failure must be in the order of the numbered symptoms. Problem Causes Check procedures/corrective measures 1. No electricity at the Measure the input voltage.
  • Page 38 3NN/3NP Problem Causes Check procedures/corrective measures 1. Defective connector Reinsert the connector. Also check for continuity within the The size of paper cable or poor con- connector cable. If none, replace the cable. on the cassette is tact in the connector. PF paper size length switch 1 and PF main PWB (YC5) not displayed cor- PF paper size length switch 2 and PF main PWB (YC8)

  • Page 39: Mechanical Problems

    3NN/3NP 1-4-4 Mechanical problems If the part causing the problem was not supplied, use the unit including the part for replacement. Problem Causes/check procedures Corrective measures Check if the surfaces of the following roll- Clean with isopropyl alcohol. No primary paper ers are dirty with paper powder.
  • Page 40 3NN/3NP Problem Causes/check procedures Corrective measures Check if the rollers, pulleys and gears Grease the bushes and gears. Abnormal noise is operate smoothly. heard. Check if the following clutches are Check visually and remedy if necessary. installed correctly. PF paper feed clutch 1 PF paper feed clutch 2 PF conveying clutch 1-4-9...

  • Page 41: Precautions For Assembly And Disassembly

    3NN/3NP 1-5 Assembly and disassembly 1-5-1 Precautions for assembly and disassembly (1) Precautions Before starting disassembly, press the Power key on the operation panel to off. Make sure that the Power lamp is off before turning off the main power switch. And then unplug the power cable from the wall outlet. When handling PWBs (printed wiring boards), do not touch parts with bare hands.

  • Page 42: Paper Feed Section

    3NN/3NP 1-5-2 Paper feed section (1) Detaching and refitting the primary paper feed units Procedure 1. Remove cassette. Cassette Figure 1-5-1 2. Push up the paper feed lever (yellow) and then remove the primary paper feed unit. Paper feed lever (yellow) Primary paper feed unit Figure 1-5-2...

  • Page 43: Detaching And Refitting The Drive Unit

    3NN/3NP (2) Detaching and refitting the drive unit Procedure 1. Remove two screws. 2. Release three hooks and then remove the rear cover. Screw Screw Rear cover Hooks(rear side) Figure 1-5-3 3. Remove the connector of the motor. Motor 4. Release the wire from hooks. 5.

  • Page 44: Detaching And Refitting The Pf Main Pwb

    3NN/3NP (3) Detaching and refitting the PF main PWB Procedure 1. Remove the rear cover. 2. Remove all connectors from the PF main PWB. Hook 3. Remove two screws. 4. Release two hooks and then remove the PF main PWB. PF main PWB Screw Screw...

  • Page 45: Upgrading The Firmware

    3NN/3NP 1-6 Requirements on PWB Replacement 1-6-1 Upgrading the firmware Follow the procedure to upgrade the firmware below. * Main PWB (CTRL) * Engine PWB (ENGN) * DP main PWB (DP) * FAX PWB (FAX) * PF main PWB (PF) * Language data (OPT) * DF main PWB (DF) * Dictionary data (DIC)

  • Page 46: Mechanical Construction

    3NN/3NP 2-1 Mechanical Construction 2-1-1 Mechanical construction The paper feeder feeds paper from either of its one or two cassettes to the machine.The cassette can contain 500 sheets (80 g/m ). The sheet from the cassette is pulled out by rotation of the pickup roller and sent to the paper conveying section by rotation of the paper feed roller.

  • Page 47: Paper Feeder (Double Cassette)

    3NN/3NP (2) Paper feeder (double cassette) Figure 2-1-2 Paper feeder (double cassette) 1. Pickup roller 12. Lift work plate 2. Paper feed roller 13. PF paper sensor 1(U) (PFPS1(U)) 3. Retard roller 14. PF paper sensor 1(L) (PFPS1(L)) 4. Feed roller 1 15.
  • Page 48 3NN/3NP PFMPWB REG_CL_REM YC4-6 PFFS1 YC3-12 REG_CL_REM1 YC4-3 PFFS1 PFLS1 PFLS1 YC3-3 PFPF PFPS1(U) YC3-6 PFPS1(U) PFPS1(L) PFPS1(L) YC3-9 LIFT_REM1 PFLM1 YC4-1 PAPLSIZE1(1),(2),(3) PFDM YC5-1,2,4 PFPLSW1 PAPWSIZE1 PFPWSW1 YC5-5 PFLS2 PFFS2 YC6-3* PFLS2 PFPS2(U) YC6-6* PFPS2(U) PFPF PFPS2(L) YC6-9* PFPS2(L) LIFT_REM2 YC7-1* PFLM2...
  • Page 49 3NN/3NP This page is intentionally left blank. 2-1-4...

  • Page 50: Electrical Parts Layout

    3NN/3NP 2-2 Electrical Parts Layout 2-2-1 Electrical parts layout (1) Paper feeder (single cassette) Machine front Machine inside Machine rear Figure 2-2-1 1. PF main PWB (PFMPWB) ....Controls electrical components in the paper feeder and serial communications with the machine. 2.

  • Page 51: Paper Feeder (Double Cassette)

    3NN/3NP (2) Paper feeder (double cassette) Machine rear Machine front Machine inside Figure 2-2-2 1. PF main PWB (PFMPWB) ....Controls electrical components in the paper feeder and serial communications with the machine. 2. Right cover 3 switch (RC3SW) ..... Breaks the safety circuit when right cover 3 is opened. 3.
  • Page 52 3NN/3NP 18. PF paper feed clutch 1 (PFPFCL1)..Primary paper feed from cassette 2. 19. PF paper feed clutch 2 (PFPFCL2)..Primary paper feed from cassette 3. 20. PF conveying clutch (PFCCL)....Conveys paper to the machine. 21. PF cassette heater (PFCH)....Dehumidifies paper. 2-2-3...
  • Page 53 3NN/3NP This page is intentionally left blank. 2-2-4...

  • Page 54: Pf Main Pwb

    3NN/3NP 2-3 Operation of the PWBs 2-3-1 PF main PWB Figure 2-3-1 PF main PWB silk-screen diagram 2-3-1...
  • Page 55 3NN/3NP Connector Signal Voltage Description Ground Ground Connected to the.interface 3.3V4 3.3 V DC 3.3 V DC power input from machine connector 3.3V0 3.3 V DC 3.3 V DC power input from machine 24V4 24 V DC 24 V DC power input from machine PF_PAUSE 0/3.3 V DC Pause signal...
  • Page 56 3NN/3NP Connector Signal Voltage Description LIFT_REM1 0/3.3 V DC PFLM1: On/Off 24V4 24 V DC 24 V DC power output to PFLM1 Connected to the PF lift REG_CL_RE 0/3.3 V DC PFPFCL1: On/Off motor 1, PF paper feed Not used clutch 1 and PF convey- 24V4...
  • Page 57 3NN/3NP Connector Signal Voltage Description LIFT_REM2 0/24 V DC PFLM2: On/Off 24V4 24 V DC 24 V DC power output to PFLM2 Connected to the PF lift REG_CL_RE 0/24 V DC PFPFCL2: On/Off motor 2 and PF paper Not used feed clutch 1.

  • Page 58: Appendixes 2-4-1

    3NN/3NP 2-4 Appendixes 2-4-1 Appendixes (1) Wiring diagram Machine P F M P W B Y C 3 3 . 3 V 4 P F L S 1 G N D E P W B P F L S 1 Y C 1 E H _ C L K E H _ C L K...
  • Page 59 3NN/3NP This page is intentionally left blank. 2-4-2...

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