Kyocera KM-3050 Service Manual
  1. Manuals
  2. Brands
  3. Kyocera Manuals
  4. All in One Printer
  5. KM-4050
  6. Service manual

Kyocera KM-3050 Service Manual

Hide thumbs Also See for KM-3050:
Table of Contents

Advertisement

Quick Links

See also: Driver Manual , Service Manual
KM-3050
KM-4050
KM-5050
SERVICE
MANUAL
Published in Jul '06
2GN70760

Advertisement

Table of Contents
loading

Related Manuals for Kyocera KM-3050

Summary of Contents for Kyocera KM-3050

  • Page 1: Service Manual

    KM-3050 KM-4050 KM-5050 SERVICE MANUAL Published in Jul ’06 2GN70760...
  • Page 2 CAUTION DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE RECOMMENDED BY THE MANUFACTURER. DISPOSE OF USED BATTERIES ACCORDING TO THE MANUFACTURER’S INSTRUCTIONS. ATTENTION IL Y A DANGER D’EXPLOSION S’IL Y A REMPLACEMENT INCORRECT DE LA BATTERIE. REMPLACER UNIQUEMENT AVEC UNE BATTERIE DU MÊME TYPE OU D’UN TYPE REC- OMMANDÉ...
  • Page 3 Revision history Revision Date Replaced pages Remarks...
  • Page 4 This page is intentionally left blank.

  • Page 5: Safety Precautions

    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 6 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 7: Installation Precautions

    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 8 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 9 • 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 10: Table Of Contents

    2GN/2GP/2GR CONTENTS 1-1 Specifications 1-1-1 Specifications............................1-1-1 1-1-2 Parts names............................1-1-4 (1) Machine.............................1-1-4 (2) Operation panel..........................1-1-5 1-1-3 Machine cross section ..........................1-1-6 1-2 Installation 1-2-1 Installation environment .........................1-2-1 1-2-2 Unpacking and installation ........................1-2-2 (1) Installation procedure ........................1-2-2 (2) Setting initial copy modes........................1-2-10 1-2-3 Installing the key counter (option) ......................1-2-11 1-3 Maintenance Mode 1-3-1 Maintenance mode ..........................1-3-1 (1) Executing a maintenance item ......................1-3-1...
  • Page 11 2GN/2GP/2GR 1-5-3 Optical section ............................1-5-11 (1) Detaching and refitting the exposure lamp..................1-5-11 (2) Detaching and refitting the scanner wires ..................1-5-13 (3) Detaching and refitting the ISU (reference)..................1-5-18 (4) Adjusting the position of the ISU (reference)...................1-5-20 (5) Detaching and refitting the laser scanner unit .................1-5-21 (6) Adjusting the skew of the laser scanner unit (reference) ..............1-5-23 1-5-4 Drum section............................1-5-24 (1) Detaching and refitting the drum unit ....................1-5-24...
  • Page 12 2GN/2GP/2GR 2-4 Appendixes Maintenance parts list ..........................2-4-1 Periodic maintenance procedures ......................2-4-3 Chart of image adjustment procedures....................2-4-7 General wiring diagram...........................2-4-9 INSTALLATION GUID PAPER FEEDER 3000 SHEETS PAPER FEEDER DOCUMENT FINISHER 3000 SHEETS DOCUMENT FINISHER DOCUMENT PROCESSOR BUILT-IN FINISHER JOB SEPARATOR FAX System (M) Data Security Kit (C)

  • Page 13: Specifications

    2GN/2GP/2GR 1-1 Specifications 1-1-1 Specifications Type ..........Desktop Copying system ......Indirect electrostatic system Originals.......... Sheets, books and three-dimensional objects Maximum size: A3/Ledger Original feed system ....... Fixed Copy paper ........Weight Cassette: 60 - 105 g/m MP tray: 45 - 200 g/m Types Cassette: Plain, Preprinted, Bond, Recycled, Rough, Letterhead, Color (Colour), Prepunched, High quality and Custom1 - 8...
  • Page 14 2GN/2GP/2GR Multiple copying ......1 - 999 sheets Photoconductor....... a-Si (drum diameter 40 mm) Charging system......Single positive corona charging Recording system ......Semiconductor laser Developing system ......Dry, reverse developing (single component system) Developer: 1-component, magnetism toner Toner replenishing: automatic from a toner container Transfer system ......
  • Page 15 2GN/2GP/2GR Font..........Outline font: 80 fonts (PCL6)/136 fonts (KPDL3) Bitmap font: 1 font/79 fonts are processed by outline font. OCR characters: OCR-A, OCR-B and OCR-kana Connectivity ........Plug & Play SNMP (printer MIB supported) Scanner functions Ethernet .......... 10BASE-T/100BASE-TX Network Protocol ......TCP/IP Transmission system ......

  • Page 16: Parts Names

    2GN/2GP/2GR 1-1-2 Parts names (1) Machine 34 35 Figure 1-1-1 Original cover (Option) 13. Toner container 25. USB memory slot (A2) Original size indicator plates 14. Toner container stopper 26. USB memory slot (A3) Clip holder 15. Waste toner box 27.
  • Page 17 2GN/2GP/2GR (2) Operation panel Figure 1-1-2 System menu key/indicator 13. Memory indicator Status/Job cancel key/indicator 14. Error indicator Program key/indicator 15. Help key/indicator Application key 16. Log-out key/indicator Counter key/indicator 17. Power key Copy key/indicator 18. Main power indicator Send key/indicator 19.

  • Page 18: Machine Cross Section

    2GN/2GP/2GR 1-1-3 Machine cross section Light path Paper path Figure 1-1-3 Machine cross section Paper feed section Main charging section Optical section Developing section Transfer and separation section Cleaning and charge erasing section Fuser section Eject and switchback section Duplex section 1-1-6...

  • Page 19: Installation Environment

    2GN/2GP/2GR 1-2 Installation 1-2-1 Installation environment ° ° Temperature: 10 to 32.5 C/50 to 90.5 Humidity: 15 to 80%RH Power supply: 120 V AC, 11.5 A 220 to 240 V AC, 6.3 A ± ± Power source frequency: 50 Hz 0.3%/60 Hz 0.3% Installation location...

  • Page 20: Unpacking And Installation

    2GN/2GP/2GR 1-2-2 Unpacking and installation (1) Installation procedure Start Connect the power cord. Unpack. Install the fixing bracket. Remove the tapes, spacers and pad. Carry out initial developer setting Install the optional paper feeder. (maintenance item U130). Release the lever holding mirror 1 and 2 frames. Output an own-status report (maintenance item U000).
  • Page 21 2GN/2GP/2GR Moving the machine When moving the machine, pull out the four carrying handles on the right and left sides and hold them. Carrying Carrying handle handle Carrying handle Carrying handle Figure 1-2-2 1-2-3...

  • Page 22: Installation

    2GN/2GP/2GR Unpacking. Figure 1-2-3 Unpacking Machine 11. Spacer Outer case 12. Document tray Inner frame 13. Hinge joints Skid 14. Bar code labels Bottom front left pad 15. Power cord Bottom front right pad 16. Plastic bag Bottom rear left pad 17.
  • Page 23 2GN/2GP/2GR Remove the tapes, spacers and pad. 1. Remove two tapes. Spacers 2. Pull the lever and operation section is low- ered. 3. Remove two spacers. Remove waste textile on the operation panel, if any. 4. Remove the pad. 5. Remove the tape holding the power cord. Tape Tape Figure 1-2-4...
  • Page 24 2GN/2GP/2GR Release of cassette lift plate. 1. Pull cassette 1 and 2 out. Lift plate stopper Remove the lift plate stopper from each cas- sette and attach it to the storage location. When moving the machine, attach the lift plate in original position. Figure 1-2-6 Load paper.
  • Page 25 2GN/2GP/2GR 4. Align the paper flush against the left side of the cassette. Figure 1-2-9 Install the toner container. 1. Open the front cover. Toner container 2. Tap the top of the toner container five to six times. Figure 1-2-10 3.
  • Page 26 2GN/2GP/2GR 4. Gently push the toner container into the Toner container machine along the rails. Push the container all the way into the machine until it locks in place. Figure 1-2-12 Install the waste toner box. 1. Install the waste toner box in the machine. 2.
  • Page 27 2GN/2GP/2GR Install the fixing brackets. Grooves 1. Remove two screws from the rear cover. 2. Hook the catch of fixing bracket onto the groove of round frame, and secure it using two screws removed before step. Fixing brackets Figure 1-2-14 Carry out initial developer setting (maintenance item U130).

  • Page 28: Setting Initial Copy Modes

    2GN/2GP/2GR (2) Setting initial copy modes Factory settings are as follows: Maintenance Contents Factory setting item No. U253 Switching between double and single counts Double count U260 Selecting the timing for copy counting After ejection U285 Setting service status page U326 Setting the black line cleaning indication U328...

  • Page 29: Installing The Key Counter (Option)

    2GN/2GP/2GR 1-2-3 Installing the key counter (option) Key counter installation requires the following parts: Key counter (P/N 82142540) Key counter set (P/N 302A369705) Supplied parts of key counter set: Key counter cover (P/N 2A360010) Key counter retainer (P/N 66060030) Key counter cover retainer (P/N 66060022) Key counter mount (P/N 66060040) Key counter socket assembly (P/N 41529210) Two (2) M3 x 6 bronze flat-head screws (P/N B2303060)

  • Page 30: Maintenance Mode

    2GN/2GP/2GR 7. Pass the key counter signal cable through the aperture in the key counter cover retainer, and insert into the connector of the machine. 8. Seat the projection of the key counter cover retainer in the aperture in the upper right cover.

  • Page 31: Maintenance Mode

    2GN/2GP/2GR 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 Press the status key. Enter “10871087” using Maintenance mode is entered. the numeric keys.

  • Page 32: Maintenance Modes Item List

    2GN/2GP/2GR (2) Maintenance modes item list Section Item Content of maintenance item Initial setting* General U000 Outputting an own-status report U001 Exiting the maintenance mode U002 Setting the factory default data U003 Setting the service telephone number *************** U004 Displaying the machine number U005 Copying without paper U019...
  • Page 33 2GN/2GP/2GR Section Item Content of maintenance item Initial setting* High voltage U100 Setting the main high voltage U101 Setting the other high voltages Developing bias AC component frequency at image formation Developing shift bias potential at image formation Developing bias AC component duty at image formation Transfer control voltage Separation control voltage U102...
  • Page 34 2GN/2GP/2GR Section Item Content of maintenance item Initial setting* Operation U243 Checking the operation of the DP motors panel and U244 Checking the DP switches support equipment U245 Checking messages U246 Setting the finisher 3000-sheet document finisher 0/0/0/0/0/0 Centerfold unit 0/0/0/0/0/0/0/0 built-in finisher 0/0/0...
  • Page 35 2GN/2GP/2GR Section Item Content of maintenance item Initial setting* Others U933 Setting the backup kit U935 Relay board maintenance U942 Setting of amount of slack for feeding from DP U984 Checking the developing unit number U985 Displaying the developing unit history U989 HDD scandisk U990...

  • Page 36: Contents Of The Maintenance Mode Items

    2GN/2GP/2GR (3) Contents of the maintenance mode items Maintenance Description item No. Outputting an own-status report U000 Description Outputs lists of the current settings of the maintenance items, and paper jam and service call occurrences. Outputs the event log or service status page. Purpose To check the current setting of the maintenance items, or paper jam or service call occurrences.
  • Page 37 2GN/2GP/2GR Maintenance Description item No. U000 Detail of event log Items Description System version System date Paper Jam Log Count. Event Remembers 1 to 16 of The total page count at Log code (2 digit, hexa- occurrence. If the the time of the paper decimal, 5 categories) occurrence of the previ- jam.

  • Page 38: Service Status Page

    2GN/2GP/2GR Maintenance Description item No. Service status page (1) U000 Service Status Page Firmware version 2GN_2000.XLG.368 2006.04.17 Controller Information Memory Status Option Slot1 524288KB Option Slot2 524288KB Total 1048576KB Time Auto Continue Mode Local Time Zone +01:00_Amsterdam Auto Continue Timer Data and Time 10/27/2005 09:06 Time Server...

  • Page 39: Engine Information

    2GN/2GP/2GR Maintenance Description item No. Service status page (2) U000 Service Status Page Firmware version 2GN_2000.XLG.368 2006.04.17 Engine Information Counter (31) Printed (10) Engine ROM Version 2GW_1000.003.001 Total Printed Pages (11) Front Panel ROM Version 2GW_A000.001.019 Copier (12) NVRAM Version _Bb04B29_Bb04B29 Printer (13)
  • Page 40 2GN/2GP/2GR Maintenance Description item No. U000 Detail of Service status page Description Supplement (10) Engine ROM version (11) Operation panel ROM version (12) NV RAM version _ Bb 04B29 _ Bb 04B29 (a) (b) (d) (e) (a) Consistency of the present software version and the database _ (underscore): OK * (Asterisk): NG...
  • Page 41 2GN/2GP/2GR Maintenance Description item No. U000 Description Supplement (29) Identification name for the security kit (30) Security kit version (31) Printed page counts Total/Copy/Printer/Fax (32) Scanned page counts Total/Copy/Other (33) Counts by paper sizes (34) Fax kit information This item is printed only when the optional fax kit is installed.
  • Page 42 2GN/2GP/2GR Maintenance Description item No. Setting the service telephone number U003 Description Sets the telephone number to be displayed when a service call code is detected. Purpose To set the telephone number to call service when installing the machine. Method Press the start key.
  • Page 43 2GN/2GP/2GR Maintenance Description item No. Displaying the ROM version U019 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 44 2GN/2GP/2GR Maintenance Description item No. Initializing all data U020 Description Initializes all the backup RAM on the main PWB to return to the original settings. Refer to *1 of the maintenance mode item list about the item initialized. Purpose To be executed as required. Method 1.
  • Page 45 2GN/2GP/2GR Maintenance Description item No. Initializing counters and mode settings U021 Description Initializes all settings, except those pertinent to the type of copier, namely each counter, service call history and mode setting. Also initializes backup RAM according to region specification selected in maintenance item U252 Setting the destination.
  • Page 46 2GN/2GP/2GR Maintenance Description item No. HDD formatting U024 Description Formats the HDD backup data areas for the document management, network scanner and department administration. Purpose To initialize the HDD when replacing the HDD after shipping. Method 1. Press the start key. 2.
  • Page 47 2GN/2GP/2GR Maintenance Description item No. Checking clutch operation U032 Description Turns each clutch on. Purpose To check the operation of each clutch. Method 1. Press the start key. 2. Select the clutch to be operated. 3. Press the start key. The clutch turns on for 1 s. Display Clutches Upper paper feed clutch (PFCL-U)
  • Page 48 2GN/2GP/2GR Maintenance Description item No. Adjusting the print start timing U034 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 49 2GN/2GP/2GR Maintenance Description item No. Adjustment: center line adjustment U034 1. Select the item to be adjusted. Display Description Setting Initial Change in range setting value per step LEFT Adjustment of reference value 0 to 1000 1.0 mm MP TRAY Paper feed from MP tray* -500 to 500 1.0 mm...
  • Page 50 2GN/2GP/2GR Maintenance Description item No. Adjusting the amount of slack in the paper U051 Description Adjusts the amount of slack in the paper 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 51 2GN/2GP/2GR Maintenance Description item No. Setting the adjustment of the motor speed U053 Description Performs fine adjustment of the speeds of the motors. Purpose To adjust the speed of the respective motors when the magnification is not correct. Method 1. Press the start key. 2.
  • Page 52 2GN/2GP/2GR Maintenance Description item No. Turning the exposure lamp on U061 Description Turns the exposure lamp on. Purpose To check the exposure lamp. Method 1. Press the start key. 2. Select the item. Display Description Exposure lamp CIS (optional DP exposure lamp) 3.
  • Page 53 2GN/2GP/2GR Maintenance Description item No. Adjusting the scanner magnification U065 Description Adjusts the magnification of the original scanning. Purpose Make the adjustment if the magnification in the main scanning direction is incorrect. Make the adjustment if the magnification in the auxiliary scanning direction is incorrect. Caution Adjust the magnification of the scanner in the following order.
  • Page 54 2GN/2GP/2GR Maintenance Description item No. Adjusting the scanner leading edge registration U066 Description Adjusts the scanner leading edge registration of the original scanning. Purpose Make the adjustment if there is a regular error between the leading edges of the copy image and original. Adjustment 1.
  • Page 55 2GN/2GP/2GR Maintenance Description item No. Adjusting the scanner center line U067 Description Adjusts the scanner center line of the original scanning. Purpose Make the adjustment if there is a regular error between the center lines of the copy image and original. Adjustment 1.
  • Page 56 2GN/2GP/2GR Maintenance Description item No. Adjusting the scanning position for originals from the DP U068 Description Adjusts the position for scanning originals from the DP. Performs the test copy at the five scanning positions after adjusting. Purpose Used when the image fogging occurs because the scanning position is not proper when the DP is used. Run U071 to adjust the timing of DP leading edge when the scanning position is changed.
  • Page 57 2GN/2GP/2GR Maintenance Description item No. Adjustment: main scanning direction of CIS U070 1. Press the system menu key. 2. Place an original on the DP and press the start key to make a test copy. 3. Press the system menu key. 4.
  • Page 58 2GN/2GP/2GR Maintenance Description item No. Adjusting the DP scanning timing U071 Description Adjusts the DP original scanning timing. Purpose Make the adjustment if there is a regular error between the leading or trailing edges of the original and the copy image when the optional DP is used. Method 1.
  • Page 59 2GN/2GP/2GR Maintenance Description item No. Adjustment: trailing edge registration U071 1. Press the system menu key. 2. Place an original on the DP and press the start key to make a test copy. 3. Press the system menu key. 4. Change the setting value using the +/- or numeric keys. For copy example 1, increase the value.
  • Page 60 2GN/2GP/2GR Maintenance Description item No. Adjusting the DP center line U072 Description Adjusts the scanning start position for the DP original. Purpose Make the adjustment if there is a regular error between the centers of the original and the copy image when the optional DP is used.
  • Page 61 2GN/2GP/2GR Maintenance Description item No. Checking scanner operation U073 Description Simulates the scanner operation under arbitrary conditions. Purpose To check scanner operation. Start 1. Press the start key. 2. Select the item to be operated. Display Description SCANNER MOTOR Scanner operation HOME POSITION Home position operation DP READING...
  • Page 62 2GN/2GP/2GR Maintenance Description item No. Adjusting the DP input light luminosity U074 Description Adjusts the luminosity of the exposure lamp for scanning originals from the DP. Purpose Used if the exposure amount differs significantly between when scanning an original on the contact glass and when scanning an original from the DP.
  • Page 63 2GN/2GP/2GR Maintenance Description item No. Setting DP reading position modification operation U087 Description The presence or absence of dust is determined by comparing the scan data of the original trailing edge and that taken after the original is conveyed past the DP original scanning position. If dust is identified, the DP original scanning position is adjusted for the following originals.
  • Page 64 2GN/2GP/2GR Maintenance Description item No. Outputting a MIP-PG pattern U089 Description Selects and outputs the MIP-PG pattern created in the machine. Purpose To check copier status other than scanner when adjusting image printing, using MIP-PG pattern output (with- out scanning). Method 1.
  • Page 65 2GN/2GP/2GR Maintenance Description item No. Setting the exposure density gradient U093 Description Changes the exposure density gradient in the manual density mode, depending on respective image quality modes. Purpose To set how the image density is altered by a change of one step in the manual density adjustment for respec- tive image quality modes.
  • Page 66 2GN/2GP/2GR Maintenance Description item No. Setting: Density in photo mode U093 1. Select the item to be set. 2. Adjust the setting using the +/- or numeric keys. Display Description Setting Initial range setting PHOTO DARKER Change in density when manual density is set dark 0 to 3 PHOTO LIGHTER Change in density when manual density is set light 0 to 3 Increasing the setting makes the change in density larger, and decreasing it makes the change smaller.
  • Page 67 2GN/2GP/2GR Maintenance Description item No. Adjusting original size detection U099 Description Checks the operation of the original size detection sensor and sets the sensing threshold value. Purpose To adjust the sensitiveness of the sensor and size judgement time if the original size detection sensor mal- functions frequently due to incident light or the like.
  • Page 68 2GN/2GP/2GR Maintenance Description item No. Setting the main high voltage U100 Description Performs main charging. Purpose To check main charging. Method 1. Press the start key. 2. Select the item to be operated. The selected operation starts. Display Description MC ON Turning the main charger on LASER ON/OFF Turning the main charger on and the laser scanner unit on and off...
  • Page 69 2GN/2GP/2GR Maintenance Description item No. Setting the cleaning interval for the main charger U102 Description Changes the intervals at which the main charger is cleaned. Purpose To change the setting when the background is visible. Setting 1. Press the start key. 2.
  • Page 70 2GN/2GP/2GR Maintenance Description item No. Setting separation charger mode U114 Description Sets the separation charger mode. Purpose To change the setting if the fuser offset or carrier leaking occurs. Method 1. Press the start key. 2. Change the setting using the +/- or numeric keys. Display Description Setting range...
  • Page 71 2GN/2GP/2GR Maintenance Description item No. Initial setting for the developing unit U130 Description Replenishes toner to the developing unit to a certain level from the toner container that has been installed. Purpose To operate when installing the machine or replacing the developing unit. Method 1.
  • Page 72 2GN/2GP/2GR Maintenance Description item No. Checking/clearing the developing drive time U157 Description Displays the developing drive time for checking, or clearing a figure, which is used as a reference when cor- recting the toner control. Purpose To check the developing drive time after replacing the developing unit. Method Press the start key.
  • Page 73 2GN/2GP/2GR Maintenance Description item No. Resetting the fuser problem data U163 Description Resets the detection of a service call code indicating a problem in the fuser section. Purpose To prevent accidents due to an abnormally high fuser temperature. Method 1. Press the start key. 2.
  • Page 74 2GN/2GP/2GR Maintenance Description item No. Turning all LEDs on U200 Description Turns all the LEDs on the operation panel on. Purpose To check if all the LEDs on the operation panel light. Method Press the start key. All the LEDs on the operation panel light. Press the stop key or wait for 10 s.
  • Page 75 2GN/2GP/2GR Maintenance Description item No. Checking DP operation U203 Description Simulates the original conveying operation separately in the optional DP. Purpose To check the DP operation. Method 1. Press the start key. 2. Place an original in the DP if running this simulation with paper. 3.
  • Page 76 2GN/2GP/2GR Maintenance Description item No. Setting the presence or absence of the coin vender U206 Description Sets the presence or absence of the optional coin vender. Also sets the details for coin vender operation, such as mode and unit price. This is an optional device which is currently supported only by Japanese specification machines, so no setting is necessary.
  • Page 77 2GN/2GP/2GR Maintenance Description item No. Setting the trial functions U220 Description Enables the trial of USB functions by period limitation. Purpose To try USB activation functions. Method Press the start key. Display Description FUNCTION Selecting trial functions TRIAL STATUS Displays the current setting (1: Under trial, 0: Not trial) COUPON COUNT Displays remaining times TIME LIMIT...
  • Page 78 2GN/2GP/2GR Maintenance Description item No. Setting the limit for the ejection section of the built-in finisher U236 Description If the machine is equipped with an optional built-in finisher, this mode sets whether A5R/B5R/statement size paper is output to the machine eject tray or not. Purpose If the machine is equipped with an optional built-in finisher and if paper jams occur due to curling of paper in the built-in ejection section when two-sided copying onto A5R/B5R/statement size paper is performed, this...
  • Page 79 2GN/2GP/2GR Maintenance Description item No. Checking the operation of the finisher U240 Description Turns each motor and solenoid of the 3000-sheet document finisher ON. Purpose To check the operation of each motor and solenoid of the 3000-sheet document finisher. Method 1.
  • Page 80 2GN/2GP/2GR Maintenance Description item No. Method: Checking the solenoid of the 3000-sheet document finisher U240 1. Select the item to be operated. The solenoid turns on for 1 s. Display Solenoid FEED IN SOL Paper entry solenoid (PESOL) REAR DOWN SOL 1 Trailing edge holder solenoid 1 (TEHSOL1) REAR DOWN SOL 2 Trailing edge holder solenoid 2 (TEHSOL2)
  • Page 81 2GN/2GP/2GR Maintenance Description item No. Checking the operation of the switches of the finisher U241 Description Displays the status of each switch of the 3000-sheet document finisher. Purpose To check the operation of each switch of the 3000-sheet document finisher. Method 1.
  • Page 82 2GN/2GP/2GR Maintenance Description item No. Method: Checking the switch of the mail box U241 1. Turn the respective switches on and off manually to check the status. When a switch is detected to be in the ON position, the display for that switch will be highlighted. Display Switches FEED IN SW...
  • Page 83 2GN/2GP/2GR Maintenance Description item No. Checking the DP switches U244 Description Displays the status of the respective switches in the optional DP. Purpose To check if respective switches in the optional DP operate correctly. Method 1. Press the start key. 2.
  • Page 84 2GN/2GP/2GR Maintenance Description item No. Setting the finisher U246 Description Provides various settings for the optional finisher, if furnished. Purpose Adjustment of registration stop timing in punch mode Adjust if skewed paper conveying occurs or if the copy paper is Z-folded in punch mode. Adjustment of paper stop timing in the punch mode To adjust this item when the position of a punch hole is different from the specified one.
  • Page 85 2GN/2GP/2GR Maintenance Description item No. Setting: adjustment of the paper stop timing U246 1. Select PUNCH POS ADJ. 2. Change the setting using the +/- or numeric keys. Setting Initial Change in Description range setting value per step Adjustment of the paper stop timing -10 to 10 0.49 mm If the distance of the position of a punch hole is smaller than the specified value A, increase the preset...
  • Page 86 2GN/2GP/2GR Maintenance Description item No. Setting: adjustment of slanted stapling home position U246 1. Select T-STAPLE HP ADJ. 2. Change the setting using the +/- or numeric keys. Setting Initial Change in Description range setting value per step ° Adjustment of slanted stapling home position -10 to 10 0.99 To increase the angle for slanted stapling (sample 1), decrease the preset value.
  • Page 87 2GN/2GP/2GR Maintenance Description item No. Setting: adjustment of booklet stapling position U246 1. Select the [STAPLE POS ADJ 1], [STAPLE POS ADJ 2] or [STAPLE POS ADJ 3]. 2. Change the setting using the +/- or numeric keys. Description Setting Initial Change in range...
  • Page 88 2GN/2GP/2GR Maintenance Description item No. Setting the side registration cursor stop position U246 1. Select the desired cursor position. 2. Change the setting using the +/- or numeric keys. Display Description Setting Initial range setting FRONT Front side registration cursor stop position -4 to +4 REAR Rear side registration cursor stop position...
  • Page 89 2GN/2GP/2GR Maintenance Description item No. Setting the maintenance cycle U250 Description Displays and changes the maintenance cycle. Purpose To check and change the maintenance cycle. Method Press the start key. The currently set maintenance cycle is displayed. Setting 1. Change the setting using the numeric keys. Description Setting range Initial setting...
  • Page 90 2GN/2GP/2GR Maintenance Description item No. Setting the destination U252 Description Switches the operations and screens of the machine according to the destination. Purpose To be executed after initializing the backup RAM by running maintenance item U020, in order to return the set- ting to the value before replacement or initialization.
  • Page 91 2GN/2GP/2GR Maintenance Description item No. Selecting the timing for copy counting U260 Description Changes the copy count timing for the total counter and other counters. Purpose To be set according to user (copy service provider) request. If a paper jam occurs frequently in the optional document finisher when the number of copies is counted at the time of paper ejection, copies are provided without copy counts.
  • Page 92 2GN/2GP/2GR Maintenance Description item No. Setting the black line cleaning indication U326 Description Sets whether to display the cleaning guidance when detecting the black line. Purpose Displays the cleaning guidance in order to make the call for service with the black line decrease by the rubbish on the platen when scanning from the DP.
  • Page 93 2GN/2GP/2GR Maintenance Description item No. Setting the size conversion factor U332 Description Sets the coefficient of nonstandard sizes in relation to the A4/Letter size. The coefficient set here is used to convert the black ratio in relation to the A4/Letter size and to display the result in user simulation. Purpose To set the coefficient for converting the black ratio for nonstandard sizes in relation to the A4/Letter size.
  • Page 94 2GN/2GP/2GR Maintenance Description item No. Setting the ejection restriction U342 Description Sets or cancels the restriction on the number of sheets to be ejected continuously when the internal eject tray is selected as the eject location. Purpose According to user request, sets or cancels restriction on the number of sheets. Setting 1.
  • Page 95 2GN/2GP/2GR Maintenance Description item No. Adjusting margins of image printing U402 Description Adjusts margins for image printing. Purpose Make the adjustment if margins are incorrect. Adjustment 1. Press the start key. 2. Select the item to be adjusted. Setting Initial Change in Display Description...
  • Page 96 2GN/2GP/2GR Maintenance Description item No. Adjusting margins for scanning an original on the platen U403 Description Adjusts margins for scanning the original on the contact glass. Purpose Make the adjustment if margins are incorrect. Adjustment 1. Press the start key. 2.
  • Page 97 2GN/2GP/2GR Maintenance Description item No. Adjusting margins for scanning an original from the DP U404 Description Adjusts margins for scanning the original from the DP. Purpose Make the adjustment if margins are incorrect when the optional DP is used. Caution Before making this adjustment, ensure that the following adjustments have been made in maintenance mode U402 U403...
  • Page 98 2GN/2GP/2GR Maintenance Description item No. Adjusting the leading edge registration for memory image printing U407 Description Adjusts the leading edge registration during memory copying. Purpose Make the adjustment if there is a regular error between the leading edges of the copy image and original dur- ing memory copying.
  • Page 99 2GN/2GP/2GR Maintenance Description item No. Adjusting the scanner automatically U411 Description Uses a specified original and automatically adjusts the following items in the scanner and the DP scanning sections. Purpose To perform automatic adjustment of various items in the scanner and the DP scanning sections. Method 1.
  • Page 100 2GN/2GP/2GR Maintenance Description item No. Method: DP(FACE UP) U411 1. Set a specified original (P/N: 2AC68241) in the DP. 2. Select [INPUT]. Display Description INPUT Automatic adjustment of first page using the DP for: original size magnifica- tion/leading edge timing/center line. 3.
  • Page 101 2GN/2GP/2GR Maintenance Description item No. U411 When automatic adjustment has normally completed, [RESULT OK 00] is displayed. If a problem occurs during auto adjustment, [ERROR XX] (XX is replaced by an error code) is displayed and opera- tion stops. Should this happen, determine the details of the problem and either repeat the procedure from the beginning, or adjust the remaining items manually by running the corresponding maintenance items.
  • Page 102 2GN/2GP/2GR Maintenance Description item No. Error Codes U411 Codes Description ERROR 01 Black band detection error (scanner leading edge registration) ERROR 02 Black band detection error (scanner center line) ERROR 03 Black band detection error (scanner main scanning direction magnification) ERROR 04 Black band is not detected (scanner leading edge registration) ERROR 05...
  • Page 103 2GN/2GP/2GR Maintenance Description item No. Setting the target U425 Description The value that is indicated on the back of the chart to be used for adjustment should be entered. Purpose Performs data input in order to correct for differences in originals during automatic adjustment. Method 1.
  • Page 104 2GN/2GP/2GR Maintenance Description item No. Setting: CIS U425 1. Select the item to be set. Display Description N950 Setting the N950 patch for the original for adjustment N850 Setting the N850 patch for the original for adjustment N770 Setting the N770 patch for the original for adjustment N650 Setting the N650 patch for the original for adjustment N500...
  • Page 105 2GN/2GP/2GR Maintenance Description item No. Checking/clearing copy counts by paper feed locations U901 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 consumable parts. Method Press the start key.
  • Page 106 2GN/2GP/2GR Maintenance Description item No. Checking/clearing the paper jam counts U903 Description Displays or clears the jam counts by jam locations. Purpose To check the paper jam status. Also to clear the jam counts after replacing consumable parts. Method 1. Press the start key. 2.
  • Page 107 2GN/2GP/2GR Maintenance Description item No. Checking/clearing counts by optional devices U905 Description Displays or clears the counts of optional DP or finisher. Purpose To check the use of optional DP and finisher. Also to clear the counts after replacing consumable parts. Method 1.
  • Page 108 2GN/2GP/2GR Maintenance Description item No. Clearing the black ratio data U910 Description Clears the accumulated black ratio data for A4 sheet. Purpose To clear data as required at times such as during maintenance service. Method 1. Press the start key. 2.
  • Page 109 2GN/2GP/2GR Maintenance Description item No. Setting the backup kit U933 Description Initializes optional data backup kit (CF) and restore the backup data. Purpose To initialize the CF when call for service (C0700) occurs. Also, to restore data when the hard disk has been damaged.
  • Page 110 2GN/2GP/2GR Maintenance Description item No. Setting of amount of slack for feeding from DP U942 Description Adjusts the amount of slack generated when the optional DP is used. Purpose Use this mode if an original non-feed jam, oblique feed or wrinkling of original occurs when the DP is used. Setting 1.
  • Page 111 2GN/2GP/2GR Maintenance Description item No. HDD scandisk U989 Description Restores data in the hard disk by scanning the disk. Purpose If power is turned off while accessing to the hard disk is performed, the control information in the hard disk drive may be damaged.
  • Page 112 2GN/2GP/2GR Maintenance Description item No. Outputting a VTC-PG pattern U993 Description Selects and outputs a VTC-PG pattern created in the machine. Purpose When performing respective image printing adjustments, used to check the machine status apart from that of the scanner with a non-scanned output VTC-PG pattern. Method 1.

  • Page 113: Paper Misfeed Detection

    2GN/2GP/2GR 1-4 Troubleshooting 1-4-1 Paper misfeed detection (1) Paper misfeed indication When a paper misfeed occurs, the machine immediately stops copying and displays the jam location on the operation panel. Paper misfeed counts sorted by the detection condition can be checked in maintenance item U903. To remove paper jammed in the machine, open the front cover, left cover or pull the cassette out.

  • Page 114: Paper Misfeed Detection Conditions

    2GN/2GP/2GR (2) Paper misfeed detection conditions OFSW ORSW Document processor DPTSW2 DPTSW1 Built-in finisher PCSW FSSW DUPPCSW DUPFCL MPFCL MPPFCL FCL1 FSW1 MPFSW PFCL-U FCL2 FSW2 PFCL-L FCL3 FSW3 PFPFCL1 PPSENS1 PFPFCL1 PPSENS2 PPSENS3 PFPFCL2 PFFCL PFFSW PFPFCL2 Paper feeder 3000-sheet paper feeder Figure 1-4-1 1-4-2...
  • Page 115 2GN/2GP/2GR Section Description Conditions Specified time System Cover is open during copying. Cover open Secondary paper feed does not start within specified time 30 s Secondary paper feed of arrival of paper at the registration section. does not start A communication sequence error occurs between the 3000-sheet paper machine and the 3000-sheet paper feeder.
  • Page 116 2GN/2GP/2GR Section Description Conditions Specified time Paper The registration switch (RSW) does not turn on within 1657 ms (30 ppm)/ feed Misfeed in vertical specified time of feed switch 1 (FSW1) turning on. 1283 ms (40/50 ppm) section paper conveying sec- Feed switch 1 (FSW1) does not turn on within specified 1910 ms (30 ppm)/ tion...
  • Page 117 2GN/2GP/2GR Section Description Conditions Specified time Paper The feed switch 1 (FSW1) does not turn off within speci- 1910 ms (30 ppm)/ feed Multiple sheets in verti- fied time of the feed switch 2 (FSW2) turning off. 1478 ms (40/50 ppm) section cal conveying section The feed switch 2 (FSW2) does not turn off within speci-...
  • Page 118 2GN/2GP/2GR Section Description Conditions Specified time Feedshift The feedshift switch (FSSW) does not turn on within 1545 ms (30 ppm)/ section Misfeed in feedshift specified time of the start of eject motor (EM) reverse 1196 ms (40/50 ppm) section rotation. During paper switchback operation, the feedshift switch 2989 ms (30 ppm)/ (FSSW) does not turn off within specified time of the its...
  • Page 119 2GN/2GP/2GR Section Description Conditions Specified time Optional The original registration switch (ORSW) does not turn off 19533 pulse An original jam in the within specified time. original registration DP timing switch 1 (DPTSW1) does not turn on within 4979 pulse section specified time.
  • Page 120 2GN/2GP/2GR Section Description Conditions Specified time Optional (3000-sheet document finisher) 1182 ms finisher Exit sensor stay jam Eject switch 1 (ESW1) is not turned off within specified time of its turning on. (Document finisher) 1680ms In the straight mode, the exit sensor (EXS) is not turned off within specified time of its turning on.
  • Page 121 2GN/2GP/2GR Section Description Conditions Specified time Optional The centerfold paper entry sensor (CPES) does not turn 1770 ms (30 ppm)/ finisher Jam in centerfold unit off within specified time of centerfold paper detection sen- 1370 ms (40/50 ppm) (3000-sheet document sor (CPDS) turning on.
  • Page 122 2GN/2GP/2GR Section Description Conditions Specified time Optional The reverse sensor (REVS) does not turn on within spec- 1071 ms finisher Reverse sensor jam ified time of paper entry sensor (PES) turning on. (document finisher The reverse sensor (REVS) is not turned on within speci- 435 ms only) fied time.

  • Page 123: Paper Misfeeds

    2GN/2GP/2GR (3) Paper misfeeds Problem Causes/check procedures Corrective measures A piece of paper torn from Check visually and remove it, if any. A paper jam in the copy paper is caught paper feed, convey- around feed switch 1/2/3, ing or eject section is registration switch, eject indicated as soon as switch or feedshift switch.
  • Page 124 2GN/2GP/2GR Problem Causes/check procedures Corrective measures Optional paper feeder A paper jam in the Paper is extremely curled. Change the paper. paper feed section is indicated during Check if the paper feed pul- Check visually and replace any deformed pulleys. copying (no paper ley, forwarding pulley and feed from optional...
  • Page 125 2GN/2GP/2GR Problem Causes/check procedures Corrective measures Paper is extremely curled. Change the paper. A paper jam in the Check if the MP paper feed Check visually and replace any deformed pulleys. paper feed section is pulley, MP forwarding pulley indicated during and MP separation pulley copying (no paper are deformed.
  • Page 126 2GN/2GP/2GR Problem Causes/check procedures Corrective measures Paper is extremely curled. Change the paper. A paper jam in the Check if the paper side Check visually and replace. paper feed section is guides are deformed. indicated during copying (jam in 3000- Defective paper path sen- With 5 V DC present at CN6-6 on the paper feeder main PWB, sheet paper feeder...
  • Page 127 2GN/2GP/2GR Problem Causes/check procedures Corrective measures (13) Broken feed switch 1/2/3 or Check visually and replace switch. A paper jam in the MP feed switch actuator. paper feed section is Defective switch. Run maintenance item U031 and turn switch on and off manually. indicated during Replace the switch if indication of the corresponding switch on the copying (multiple...
  • Page 128 2GN/2GP/2GR Problem Causes/check procedures Corrective measures (17) Broken eject switch or feed- Check visually and replace switch. A paper jam in the shift switch actuator. fuser section is indi- Defective switch. Run maintenance item U031 and turn switch on and off manually. cated during copying Replace the switch if indication of the corresponding switch on the (jam in fuser section).
  • Page 129 2GN/2GP/2GR Problem Causes/check procedures Corrective measures (21) Broken feedshift switch or Check visually and replace switch. A paper jam in the switchback eject switch switchback section is actuator. indicated during Defective feedshift switch. Run maintenance item U031 and turn the feedshift switch on and copying (jam in off manually.
  • Page 130 2GN/2GP/2GR Problem Causes/check procedures Corrective measures (28) Defective original registra- Run maintenance item U244 and turn the original registration An original jams in tion switch. switch on and off manually. Replace the switch if indication of the optional DP is indi- corresponding switch on the touch panel is not displayed in cated during copying reverse.
  • Page 131 2GN/2GP/2GR Problem Causes/check procedures Corrective measures (33) 3000-sheet document finisher/document finisher A paper jam in Defective staple home posi- Run maintenance item U241 and turn the staple home position optional document tion sensor. sensor on and off manually. Replace the sensor if indication of the finisher is indicated corresponding sensor on the touch panel is not displayed in during copying (fin-...
  • Page 132 2GN/2GP/2GR Problem Causes/check procedures Corrective measures (37) Defective internal tray Run maintenance item U241 and turn internal tray paper entry A paper jam in paper entry sensor 1. sensor 1 on and off manually. Replace the original switchback optional document switch if indication of the corresponding switch on the touch panel finisher is indicated is not displayed in reverse.
  • Page 133 2GN/2GP/2GR Problem Causes/check procedures Corrective measures (43) Defective reverse sensor. With 5 V DC present at CN14-5 on the finisher main PWB, check A paper jam in if CN14-7 on the finisher main PWB remains low or high when the optional document reverse sensor is turned on and off.

  • Page 134: Self-Diagnosis

    2GN/2GP/2GR 1-4-2 Self-diagnosis (1) Self-diagnostic function This unit is equipped with a self-diagnostic function. When a problem is detected, copying is disabled and the problem dis- played as a code consisting of C followed by a number, indicating the nature of the problem. A message is also displayed requesting the user to call for service.

  • Page 135: Self Diagnostic Codes

    2GN/2GP/2GR (2) Self diagnostic codes Remarks Code Contents Causes Check procedures/corrective measures C0030 Fax control PWB system problem Defective fax con- Replace the fax control PWB and verify the (optional fax) trol PWB. operation. Processing with the fax software was disabled due to a hardware or software problem.
  • Page 136 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C0630 DMA problem Defective main Replace the main PWB and check for cor- DMA transmission of compressed, PWB. rect operation. decompressed, rotated, relocated or blanked-out image data does not com- plete within the specified period of time. C0640 Hard disk drive problem Poor contact in the...
  • Page 137 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C1010 Upper lift motor error Poor contact in the Check the connection of connector of upper When cassette 1 is inserted, upper lift connector termi- lift motor and the connector YC13 on the limit switch does not turn on within 12 s nals.
  • Page 138 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C1030 Paper feeder lift motor 1 error Poor contact in the Check the connection of connector on the (optional paper feeder) connector termi- engine PWB and the connector on the paper When optional cassette 3 is inserted, nals.
  • Page 139 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C1120 Paper feeder left lift position problem Poor contact in the Check the connection of connector on the (optional 3000-sheet paper feeder) connector termi- engine PWB and the connector on the paper Paper feeder switch 2 does not turn on nals.
  • Page 140 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C2000 Drive motor problem Poor contact in the Check the connection of connector YC11 on Stable OFF is detected for 1 s continu- connector termi- the engine PWB and the connector on the ously after drive motor stability.
  • Page 141 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C2600 Paper feeder paper conveying motor Poor contact in the Check the connection of connector on the error (optional 3000-sheet paper connector termi- engine PWB and the connector on the paper feeder) nals.

  • Page 142: C3210/C3310/C3300/C3500/C3900/C3910/C4000

    2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C3210 CIS lamp problem Poor contact in the Check the connection of connector on the After the reading starting, when input connector termi- main PWB and the connector on the DP value at the time of CIS illumination does nals.
  • Page 143 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C4010 Polygon motor steady-state problem Poor contact in the Check the connection of connector YC8 on The polygon motor rotation is not stable connector termi- the engine PWB and laser scanner unit, and for 20 s after the polygon motor rotation nals.
  • Page 144 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C6050 Abnormally low fuser thermistor 3 Defective fuser Replace the fuser heater M or S. temperature heater M or S. Fuser thermistor 1 is detected 100°C/ Installation defec- Check the mounting state of the fuser ther- 212°F less than 1 s continuously during tiveness on fuser mistor 1.
  • Page 145 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C7810 Short-circuited external thermistor Poor contact in the Check the connection of connector YC14 on The thermistor input value is 0.5 V or connector termi- the engine PWB and the continuity across less.
  • Page 146 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C8050 Paper conveying belt motor 1 prob- Poor contact in the Check the connection of connector YC2 on lem (optional 3000-sheet document connector termi- the internal tray PWB and the connector on finisher) nals.
  • Page 147 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C8140 Main tray problem (optional 3000- Poor contact in the Check the connection of connector YC6 on sheet document finisher) connector termi- the finisher main PWB and the connector on The main tray is not detected by the nals.
  • Page 148 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C8170 Side registration motor 1 problem Poor contact in the Check the connection of connector YC2 on (optional 3000-sheet document fin- connector termi- the internal tray PWB and the connector on isher) nals.
  • Page 149 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C8180 Side registration motor 2 problem Poor contact in the Check the connection of connector YC8 on (optional 3000-sheet document fin- connector termi- the internal tray PWB and the connector of isher) nals.
  • Page 150 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C8210 Stapler moving motor 1 error Poor contact in the Check the connection of connector YC9 on (optional 3000-sheet document fin- connector termi- the finisher main PWB and the connector of isher) nals.
  • Page 151 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C8300 Centerfold unit communication error Poor contact in the Check the connection of connector YC22 on (optional centerfold unit of 3000-sheet connector termi- the finisher main PWB and the continuity document finisher) nals.
  • Page 152 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C8350 Centerfold side registration motor 2 Poor contact in the Check the connection of connector YC7 on problem (optional centerfold unit of connector termi- the centerfold main PWB and the connector 3000-sheet document finisher) nals.
  • Page 153 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C8510 Mail box drive motor problem Poor contact in the Check the connection of connector YC2 on (optional mail box of 3000-sheet doc- connector termi- the mail box main PWB and the connector of ument finisher) nals.
  • Page 154 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures C9000 DP communication problem Poor contact in the Check the connection of connector YC7 on (optional DP) connector termi- the scanner PWB and the connector of the A communication error is detected. nals.
  • Page 155 2GN/2GP/2GR Remarks Code Contents Causes Check procedures/corrective measures F000 Operation panel PWB communication Defective main Replace the main PWB and check for cor- error PWB. rect operation. Defective opera- Replace the operation panel PWB and tion panel PWB. check for correct operation. F010 Main PWB checksum error Defective main...

  • Page 156: Image Formation Problems

    2GN/2GP/2GR 1-4-3 Image formation problems (1)No image appears (2)No image appears (3)Image is too light. (4)Background is (5)A white line (entirely white). (entirely black). visible. appears longitudi- nally. See page 1-4-45. See page 1-4-45. See page 1-4-46. See page 1-4-46. See page 1-4-46.

  • Page 157: No Image Appears (Entirely Black)

    2GN/2GP/2GR (1) No image appears (entirely white). Copy example Causes Check procedures/corrective measures No trans- The connector terminals Reinsert the connector. Also check for continuity within the fer charg- of the high voltage PWB connector cable. If none, remedy or replace the cable. ing.

  • Page 158: Image Is Too Light

    2GN/2GP/2GR (3) Image is too light. Copy example Causes Check procedures/corrective measures Insufficient toner. If the display shows the message requesting toner replenish- ment, replace the container. Deteriorated toner. Perform the drum refresh operation. Defective The connector terminals Reinsert the connector. Also check for continuity within the transfer of the high voltage PWB connector cable.

  • Page 159: A Black Line Appears Longitudinally

    2GN/2GP/2GR (6) A black line appears longitudinally. Copy example Causes Check procedures/corrective measures Dirty contact glass. Clean the contact glass. Dirty or flawed drum. Perform the drum refresh operation. If the drum is flawed, replace the drum unit (see page 1-5-24). Deformed or worn cleaning blade.

  • Page 160: Image Is Blurred

    2GN/2GP/2GR (10) Image is blurred. Copy example Causes Check procedures/corrective measures Scanner moves erratically. Check if there is any foreign matter on the front and rear scanner rails. If any, remove it. Deformed press roller. Replace the press roller (see page 1-5-30). Paper conveying section drive prob- Check the gears and belts and, if necessary, grease them.

  • Page 161: Offset Occurs

    2GN/2GP/2GR (14) Offset occurs. Copy example Causes Check procedures/corrective measures Defective cleaning blade. Replace the drum unit (see page 1-5-24). Defective fuser unit. Check the heat roller and press roller. Wrong types of paper. Check if the paper meets specifications. Replace paper. (15) Image is partly missing.

  • Page 162: Image Center Does Not Align With The Original Center

    2GN/2GP/2GR (18) Image center does not align with the original center. Copy example Causes Check procedures/corrective measures Misadjusted image center line. Run maintenance item U034 to readjust the center line of image printing (see page 1-3-19). Misadjusted scanner center line. Run maintenance item U067 to readjust the scanner leading edge registration (see page 1-3-25).

  • Page 163: Electric Problems

    2GN/2GP/2GR 1-4-4 Electric problems Troubleshooting to each failure must be in the order of the numbered symptoms. Problem Causes Check procedures/corrective measures 1. The power cord is not Check the contact between the power plug and the outlet. The machine does plugged in properly.
  • Page 164 2GN/2GP/2GR Problem Causes Check procedures/corrective measures 1. Poor contact in the con- Reinsert the connector. Also check for continuity within the con- The exposure lamp nector terminals. nector cable. If none, remedy or replace the cable. does not turn on or 2.
  • Page 165 2GN/2GP/2GR Problem Causes Check procedures/corrective measures (11) 1. Poor contact in the touch Reinsert the connector. Also check for continuity within the con- The touch panel keys panel connector termi- nector cable. If none, remedy or replace the cable. do not work. nals.
  • Page 166 2GN/2GP/2GR Problem Causes Check procedures/corrective measures (15) 1. Poor contact in the con- Reinsert the connector. Also check for continuity within the con- The message nector terminals of front nector cable. If none, remedy or replace the cable. requesting cover to cover switch, left cover 1 be closed is dis- switch or left cover 2...

  • Page 167: Mechanical Problems

    2GN/2GP/2GR 1-4-5 Mechanical problems Problem Causes/check procedures Corrective measures Check if the surfaces of the following rollers or Clean with isopropyl alcohol. No primary paper feed. pulleys are dirty with paper powder: upper/ lower forwarding pulleys, upper/lower paper feed pulleys, upper/lower separation pulleys, feed rollers, registration rollers, MP forward- ing pulley, MP paper feed pulley and MP sep- aration pulley.
  • Page 168 2GN/2GP/2GR Problem Causes/check procedures Corrective measures Paper is extremely curled. Change the paper. Paper jams. Deformed guides along the paper conveying Check visually and replace any deformed path. guides. Check if the contact between the right and left Check visually and remedy if necessary. registration rollers is correct.

  • Page 169: Assembly And Disassembly

    2GN/2GP/2GR 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 indicator and the Memory indicator are off before turning off the main power switch. And then unplug the power cable from the wall outlet. Turning off the main power switch before pressing the Power key to off may cause damage to the equipped hard disk.

  • Page 170: Paper Feed Section

    2GN/2GP/2GR 1-5-2 Paper feed section (1) Detaching and refitting the forwarding, paper feed and separation pulleys Follow the procedure below to replace the forwarding, paper feed and separation pulleys. Procedure Removing the primary paper feed units 1. Open the front cover and pull out the cas- settes 1 and 2.
  • Page 171 2GN/2GP/2GR Removing the paper feed pulley Stop ring 7. Remove two stop rings from the primary paper feed unit. Stop ring 8. Pull the paper feed pulley shaft in the direc- tion of the arrow and remove the paper feed pulley.

  • Page 172: Detaching And Refitting The Mp Separation, Mp Paper Feed And Mp Forwarding Pulleys

    2GN/2GP/2GR (2) Detaching and refitting the MP separation, MP paper feed and MP forwarding pulleys Follow the procedure below to replace the MP separation, MP paper feed and MP forwarding pulleys. Procedure Removing the MP unit 1. Remove four screws and remove the right lower cover.
  • Page 173 2GN/2GP/2GR 5. Raise the MP separation shaft as shown in the figure, remove the holder plate and the bushing, and then remove the MP separa- tion pulley. Holder plate Take care not to remove the spring pin of the gear at the rear of the MP separation pulley Bushing shaft.
  • Page 174 2GN/2GP/2GR 9. Raise the MP paper feed pulley shaft as Stop ring shown in the figure, remove the stop ring, MP paper feed pully shaft and then remove the MP paper feed pulley. MP paper feed pully Figure 1-5-13 Removing the MP forwarding pulley Stop ring 10.
  • Page 175 2GN/2GP/2GR 13. Remove the stop ring of the MP paper feed Stop ring pulley shaft and slide the bushing in the Bushing direction of the arrow. MP paper feed pully shaft Figure 1-5-16 14. Slide the MP forwarding pulley shaft tempo- MP forwarding rarily toward the rear side and then raise it to pully shaft...
  • Page 176 2GN/2GP/2GR 16. Remove the stop ring and slide the MP for- warding pulley with the forwarding pulley retainer from the shaft to remove it. 17. Replace the MP separation, MP paper feed and MP forwarding pulleys. Stop ring MP forwarding pully Forwarding pully retainer Figure 1-5-19...

  • Page 177: Detaching And Refitting The Left And Right Registration Cleaner

    2GN/2GP/2GR (3) Detaching and refitting the left and right registration cleaner Take the following procedure when the left or right registration cleaner is to be replaced. Procedure Registration guide Removing the left registration cleaner Left registration roller 1. Open the left cover 1 and remove the trans- fer roller unit.
  • Page 178 2GN/2GP/2GR Removing the right registration cleaner 1. Remove the developing unit and drum unit. (see pages 1-5-26 and 24). 2. Remove the right registration cleaner. 3. Replace the right registration cleaner and Install the cleaner. 4. Refit the drum unit and developing unit. Right registration cleaner Frame Figure 1-5-23...

  • Page 179: Optical Section

    2GN/2GP/2GR 1-5-3 Optical section (1) Detaching and refitting the exposure lamp Replace the exposure lamp as follows. Procedure 1. Remove the original cover or the DP. 2. Remove ten screws and remove the rear cover. Rear cover Figure 1-5-24 3. Remove two screws and remove the scan- Platen ner right cover.
  • Page 180 2GN/2GP/2GR 7. Remove the sponge from the wire guide and Wire holder release the wire. 8. Move the mirror 1 frame to notch position Wire and release the wire from the wire holder. Wire guide Sponge Figure 1-5-27 9. Remove the screw and remove the expo- sure lamp.

  • Page 181: Detaching And Refitting The Scanner Wires

    2GN/2GP/2GR (2) Detaching and refitting the scanner wires Take the following procedure when the scanner wires are broken or to be replaced. NOTE When fitting the wires, be sure to use those specified below. Machine front: (P/N: 302GR17110), gray Machine rear: (P/N: 302GR17100), black Fitting requires the following tools Two frame securing tools (P/N 302C968310) Two scanner wire stoppers (P/N 3596811)
  • Page 182 2GN/2GP/2GR 6. Remove two screws and remove the scan- Scanner left cover ner left cover. Figure 1-5-31 7. Remove each screw and then remove front Mirror 1 frame and rear wire holder plates from mirror 1 frame. 8. Remove the mirror 1 frame. Front wire holder plate Rear wire holder plate Figure 1-5-32...
  • Page 183 2GN/2GP/2GR Fitting the scanner wires Frame securing tool 11. Move the mirror 2 frame as shown in the fig- Mirror 2 frame ure and insert two frame securing tools into the positioning holes at the front and rear of the machine center to fix the mirror 2 frame Frame securing tool in position.
  • Page 184 2GN/2GP/2GR 12. Hook the round terminals onto the catches inside of the scanner unit. (1) 13. Loop the scanner wires around the outer grooves in the pulleys on the mirror 2 frame, winding from below to above. (2) 14. Loop the scanner wire around the groove in the scanner wire pulley at the scanner unit right, winding from above to below.
  • Page 185 2GN/2GP/2GR 23. Remove the two scanner wire stoppers and Frame securing tool frame securing tools. 24. Focusing on the locating ball of the wire drum, move aside the wires to inside. Mirror 2 frame 25. Move the mirror 2 frame from side to side to correctly locate the wires in position.

  • Page 186: Detaching And Refitting The Isu (Reference)

    2GN/2GP/2GR (3) Detaching and refitting the ISU (reference) Follow the procedure below to replace the ISU. Fitting requires the following tools Two positions pins (P/N 1856812) Procedure ISU cover Detaching the ISU 1. Remove the platen (see page 1-5-11). 2. Remove seven screws and then remove the ISU cover.
  • Page 187 2GN/2GP/2GR Fitting the ISU 5. Adjust the position of ISU to the frame hole of number and the same number which are recorded in the lens of ISU and then insert two positioning pins. Example: When a lens number is 5, move ISU so that the positioning hole of 5 of the number stamped in the scanner unit suit and insert two pins.

  • Page 188: Adjusting The Position Of The Isu (Reference)

    2GN/2GP/2GR (4) Adjusting the position of the ISU (reference) Perform the following adjustment if the leading and trailing edges of the copy image are laterally skewed (lateral square- ness not obtained). Caution: Adjust the amount of slack in the paper at the registration roller first (see page 1-3-20). Check for the longitudinal square- ness of the copy image, and if it is not obtained, perform the longitudinal squareness adjustment.

  • Page 189: Detaching And Refitting The Laser Scanner Unit

    2GN/2GP/2GR (5) Detaching and refitting the laser scanner unit Take the following procedure when the laser scanner unit is to be replaced. Procedure 1. Remove the developing unit and drum unit (see pages 1-5-24 and 26). 2. Remove the right lower cover and front left cover (see pages 1-5-4 and 13).
  • Page 190 2GN/2GP/2GR 6. Remove two screws and two connectors, Connectors Fan duct and then remove the fan duct. Figure 1-5-45 7. Remove six screws and remove the toner Toner container retainer container retainer. Figure 1-5-46 8. Remove four screws and the connector, and Connector then remove the laser scanner unit.

  • Page 191: Adjusting The Skew Of The Laser Scanner Unit (Reference)

    2GN/2GP/2GR (6) Adjusting the skew of the laser scanner unit (reference) Perform the following adjustment if the leading and trailing edges of the copy image are laterally skewed (lateral square- ness not obtained). Procedure Start Enter maintenance mode. Copy Copy Correct image example 1 example 2...

  • Page 192: Drum Section

    2GN/2GP/2GR 1-5-4 Drum section (1) Detaching and refitting the drum unit Follow the procedure below to replace the drum unit. Cautions: Avoid direct sunlight or strong light when detaching and refitting the drum unit. Never touch the drum surface when holding the drum unit. Procedure 1.

  • Page 193: Detaching And Refitting The Main Charger Unit

    2GN/2GP/2GR (2) Detaching and refitting the main charger unit Follow the procedure below to replace the main charger unit. Procedure Inserted part 1. Remove the developing unit (see page 1-5- 26). 2. Release the inserted part and remove the connector cover. 3.

  • Page 194: Developing Section

    2GN/2GP/2GR 1-5-5 Developing section (1) Detaching and refitting the developing unit Follow the procedure below to replace the developing unit. Procedure Developing release lever 1. Open the front cover. 2. Remove the toner container and waste toner box. 3. Remove the pin and turn the developing release lever in the direction of the arrow.

  • Page 195: Transfer Section

    2GN/2GP/2GR 1-5-6 Transfer section (1) Detaching and refitting the transfer roller unit Follow the procedure below to replace the transfer roller unit. Procedure 1. Open the left cover 1. Transfer roller unit 2. While holding down the projection, slide the transfer roller unit toward the front to remove 3.

  • Page 196: Fuser Section

    2GN/2GP/2GR 1-5-7 Fuser section (1) Detaching and refitting the fuser unit Follow the procedure below to check or replace the fuser unit. Procedure 1. Remove the clip holder. Clip holder 2. Open the front cover and left cover 1. 3. Remove four screws and remove front left cover.

  • Page 197: Detaching And Refitting The Heat Roller Separation Claws

    2GN/2GP/2GR (2) Detaching and refitting the heat roller separation claws Follow the procedure below to replace the heat roller separation claws. Procedure 1. Remove the fuser unit. (see page 1-5-28) 2. Remove the two screws and remove the Upper fuser cover upper fuser cover while holding the four claws.

  • Page 198: Detaching And Refitting The Press Roller

    2GN/2GP/2GR (3) Detaching and refitting the press roller Follow the procedure below to replace the press roller. Procedure Press spring 1. Remove the fuser unit (see page 1-5-28). 2. Remove the upper fuser cover (see page 1- 5-29). 3. Remove the front and rear press springs. Press spring Figure 1-5-61 4.

  • Page 199: Detaching And Refitting The Fuser Heater

    2GN/2GP/2GR (4) Detaching and refitting the fuser heater Follow the procedure below to replace the fuser heater. Procedure 1. Remove the fuser unit (see page 1-5-28). 2. Remove the upper fuser cover (see page 1- 5-29). 3. Remove two screws and the connector. Connector Figure 1-5-63 4.

  • Page 200: Detaching And Refitting The Heat Roller

    2GN/2GP/2GR (5) Detaching and refitting the heat roller Follow the procedure below to replace the heat roller. Procedure 1. Remove the fuser unit (see page 1-5-28). 2. Remove the upper fuser cover (see page 1- 5-29). 3. Remove the press roller and fuser heater (see page 1-5-30 and 31).

  • Page 201: Detaching And Refitting The Fuser Unit Thermistor 1 And 2

    2GN/2GP/2GR (6) Detaching and refitting the fuser unit thermistor 1 and 2 Follow the procedure below to replace the fuser unit thermistor 1 and 2. Procedure 1. Remove the fuser unit (see page 1-5-28). 2. Remove the upper fuser cover (see page 1- 5-29).

  • Page 202: Adjusting Front Position Of The Fuser Unit (Adjusting Lateral Squareness)

    2GN/2GP/2GR (7) Adjusting front position of the fuser unit (adjusting lateral squareness) Follow the procedure below if the drum is not parallel to the fuser unit and therefore paper is not fed straight to the fuser section and the trailing edge of image on either the front or rear side becomes longer. Procedure Start Original...

  • Page 203: Others

    2GN/2GP/2GR 1-5-8 Others (1) Detaching and refitting the ozone filter 1 and 2 Follow the procedure below to replace the ozone filter 1 and 2 Procedure 1. Remove the ozone filter 1 from the machine left side. Ozone filter 1 Figure 1-5-71 2.

  • Page 204: Detaching And Refitting The Dust Filter 1 And 2

    2GN/2GP/2GR (2) Detaching and refitting the dust filter 1 and 2 Follow the procedure below to replace the dust filter 1 and 2 Procedure 1. Open the MP tray. 2. Remove the dust filter 1 and 2 from the machine. 3.

  • Page 205: Upgrading The Firmware

    2GN/2GP/2GR 1-6 Requirements on PWB Replacement 1-6-1 Upgrading the firmware Follow the procedure below to upgrade the firmware of main PWB, engine PWB, scanner PWB and MMI. Firmware upgrading requires the following tools: Compact Flash (Products manufactured by SANDISK are recommended.) or USB memory NOTE When writing data to a new Compact Flash from a computer, be sure to format it in advance.

  • Page 206: Adjustment-Free Variable Resistors (Vr)

    2GN/2GP/2GR 1-6-2 Adjustment-free variable resistors (VR) The variable resistors listed below are set at the factory prior to shipping and cannot be adjusted in the field. High voltage PWB: VR2, VR42, VR201, VR204 1-6-3 Remarks on main PWB replacement When replacing the main PWB, remove EEPROM from the main PWB that has been removed and then reattach it to the new main PWB.

  • Page 207: Paper Feed Section

    2GN/2GP/2GR 2-1 Mechanical construction 2-1-1 Paper feed section The paper feed section consists of the primary feed and secondary feed subsections. Primary feed conveys paper from the cassettes 1, 2 or MP tray to the left and right registration rollers, at which point secondary feed takes place and the paper travels to the transfer section in sync with the printing timing.
  • Page 208 2GN/2GP/2GR The MP tray can be hold up to 200 sheets of paper at one time. Paper is fed from the MP tray by the rotation of the MP for- warding pulley and MP paper feed pulley. Also during paper feed, the MP separation pulley prevents multiple sheets from being fed at one time by the torque limiter.
  • Page 209 2GN/2GP/2GR EPWB YC14-B6 YC10-A2 FCL1 YC11-14 YC11-17 FSW1 PSW-U LICSW-U YC13-B9 PFCL-U YC13-B12 YC14-B1 FCL2 YC13-A12 PSW-L LICSW-L YC13-B15 FSW2 PFCL-L YC13-B18 YC14-B4 FCL3 YC13-A5 FSW3 YC13-A2 YC13-A7 Figure 2-1-3 Paper feed section block diagram (cassettes 1 and 2) MPPFCL MPFCL MPPSW MPFSW...

  • Page 210: Main Charging Section

    2GN/2GP/2GR 2-1-2 Main charging section The main charging section consists of the main charger assembly, drum and so on. The drum is electrically charged uni- formly by means of a grid to form a latent image on the surface. The main charger unit charges the drum so that a latent image is formed on the surface, the shield grid ensuring the charge is applied uniformly.

  • Page 211: Optical Section

    2GN/2GP/2GR 2-1-3 Optical section The optical section consists of the scanner, mirror frame and image scanning unit for scanning and the laser scanner unit for printing. Figure 2-1-7 Optical section Mirror 1 frame Mirror 2 frame Exposure lamp (EL) Mirror 1 Mirror 2 Mirror 3 Lens...

  • Page 212: Original Scanning

    2GN/2GP/2GR (1) Original scanning The original image is illuminated by the exposure lamp (EL) and scanned by the CCD PWB (CCDPWB) in the image scan- ning unit via the three mirrors, the reflected light being converted to an electrical signal. The scanner and mirror frames travel to scan on the optical rails on the front and rear of the machine to scan from side to side.

  • Page 213: Image Printing

    2GN/2GP/2GR (2) Image printing The image data scanned by the CCD PWB (CCDPWB) is processed on the main PWB (MPWB) and transmitted as image printing data to the laser scanner unit (LSU). By repeatedly turning the laser on and off, the laser scanner unit forms a latent image on the drum surface.
  • Page 214 2GN/2GP/2GR Drum Figure 2-1-10 Laser scanner unit (2) Laser diode: Generates the laser beam which forms a latent image on the drum. Collimator lens: Collimates the diffused laser beam emitted from the laser diode to convert it into a cylindrical beam.
  • Page 215 2GN/2GP/2GR The dimensions of the laser beam are as shown in Figure 2-1-11. Less than 100 µm Less than 85 µm Figure 2-1-11 Scanning in the main direction is provided by the rotating polygon mirror, while scanning in the auxiliary direction is pro- vided by the rotating drum, forming a static latent image on the drum.

  • Page 216: Developing Section

    2GN/2GP/2GR 2-1-4 Developing section The developing section consists of the developing unit and the toner container. The developing unit consists of the developing roller where a magnetic brush is formed, the doctor blade and the develop- ing spirals that agitate the toner. When the toner sensor (TNS) detects a low toner level in the developing unit, the toner replenishment signal is output to the engine PWB (EPWB).
  • Page 217 2GN/2GP/2GR YC9-A5 TNFSOL YC9-B2 TNFSOL EPWB TNS SIG YC9-A9 BVSEL1 YC7-1 YC1-14 BVSEL2 YC7-9 YC1-6 HVTPWB Figure 2-1-15 Developing section block diagram 2-1-11...

  • Page 218: Single Component Developing System

    2GN/2GP/2GR (1) Single component developing system This machine uses the single component developing system, and reversal processing is performed with a + charged drum (a-Si) and a + charged magnetic toner. With the single component developing system, toner is electrically charged by friction with the developing sleeve and + charged when it passes through the magnetic toner blade.

  • Page 219: Transfer And Separation Sections

    2GN/2GP/2GR 2-1-5 Transfer and separation sections The transfer and separation section consists mainly of the transfer roller, separation electrode and drum separation claws. A high voltage generated by the high-voltage transformer PWB (HVTPWB) is applied to the transfer roller for transfer charging.

  • Page 220: Cleaning And Charge Erasing Sections

    2GN/2GP/2GR 2-1-6 Cleaning and charge erasing sections The cleaning section consists of the cleaning blade that removes residual toner from the drum surface after the transfer process, and the cleaning spiral that carries the residual toner back to the waste toner box. The cleaning lamp (CL) consists of LEDs and removes residual charge on the drum before main charging.

  • Page 221: Fuser Section

    2GN/2GP/2GR 2-1-7 Fuser section The fuser section consists of the parts shown in Figure 2-1-21. When paper reaches the fuser section after the transfer process, it passes between the press roller and heat roller, which is heated by fuser heaters M or S (FH-M or FH-S). Pres- sure is applied by the fuser unit pressure springs so that the toner on the paper is melted, fused and fixed onto the paper.

  • Page 222: Eject And Switchback Sections

    2GN/2GP/2GR 2-1-8 Eject and switchback sections The eject and switchback sections eject paper on which fixing has ended with the eject roller that is rotated by forward rotation of the eject motor. In duplex copying, paper is turned over by reverse rotation of the eject motor. When paper is transferred to the job separa- tor or the internal finisher, the feedshift solenoid (FSSOL) is turned on to activate the feedshift guide to switch the paper transfer path.

  • Page 223: Duplex Section

    2GN/2GP/2GR 2-1-9 Duplex section The duplex section consists of the components shown in figure. In duplex mode, after copying on to the reverse face of the paper, the paper is reversed in the switchback section and conveyed to the duplex section. The paper is then conveyed to the paper feed section by the upper and lower duplex feed rollers.

  • Page 224: Paper Conveying Operation In Duplex Copying

    2GN/2GP/2GR (1) Paper conveying operation in duplex copying Paper of which copying onto the reverse side is complete is conveyed to the switchback section, the eject motor switches from normal rotation to reverse rotation to switch the eject roller to reverse rotation, and the paper conveying direction is reversed.

  • Page 225: Electrical Parts Layout

    2GN/2GP/2GR 2-2 Electrical Parts Layout 2-2-1 Electrical parts layout (1) PWBs Machine front Machine inside Machine rear Figure 2-2-1 PWBs Engine PWB (EPWB)........Controls the other PWBs, electrical components and optional devices. Main PWB (MPWB) ........Controls the image processing and operation panel. Power source PWB (PSPWB) .....

  • Page 226: Switches And Sensors

    2GN/2GP/2GR (2) Switches and sensors Machine front Machine inside Machine rear Figure 2-2-2 Switches and sensors Main power switch (MSW) ......Turns the AC power on and off. Interlock switch (ILSW) ........ Turns the AC power for the fuser heater on and off. Safety switch 1 (SSW1) .......
  • Page 227 2GN/2GP/2GR 16. Feed switch 1 (FSW1) ......... Controls feed clutch 1 drive timing. 17. Feed switch 2 (FSW2) ......... Controls feed clutch 2 drive timing 18. Feed switch 3 (FSW3) ......... Controls feed clutch 3 drive timing 19. MP feed switch (MPFSW)......Controls MP feed clutch drive timing 20.

  • Page 228: Motors

    2GN/2GP/2GR (3) Motors 14,15,16 17,18,19 Machine front Machine inside Machine rear Figure 2-2-3 Motors Drive motor (DM) ......... Drives the machine. Paper feed motor (PFM) ......Drives paper feed section. Upper lift motor (LM-U) ........ Drives cassette 1 lift. Lower lift motor (LM-L) ......... Drives cassette 2 lift. Scanner motor (SM)........

  • Page 229: Other Electrical Components

    2GN/2GP/2GR (4) Other electrical components 16,17 Machine front Machine inside Machine rear Figure 2-2-4 Other electrical components Upper paper feed clutch 1 (PFCL-U) ... Primary paper feed from the cassette 1. Lower paper feed clutch 2 (PFCL-L) .... Primary paper feed from the cassette 2. Feed clutch 1 (FCL1) ........
  • Page 230 2GN/2GP/2GR 2-2-6...

  • Page 231: Power Source Pwb

    2GN/2GP/2GR 2-3 Operation of the PWBs 2-3-1 Power source PWB Power +24VD source PWB +24VDF F201 F101 L101 LIVE F202 Switching +12VD input regulator NEUTRAL +5VD +5VDF F203 +3R3VD SLEEP Zero-cross ZCROSS signal output circuit CFM4 Heater control FH-M circuit FH-S L102 FH-M...

  • Page 232: Engine Pwb

    2GN/2GP/2GR Connector Pin No. Signal Voltage Description LIVE 120 V AC AC power input 220-240 V AC Connected 120 V AC AC power input to the AC 220-240 V AC inlet LIVE 120 V AC AC power output 220-240 V AC LIVE 120 V AC AC power input...
  • Page 233 2GN/2GP/2GR Connector Pin No. Signal Voltage Description 24 V DC 24 V DC power output Connected 24 V DC 24 V DC power output to the scan- 24 V DC 24 V DC power output ner PWB PGND Ground PGND Ground PGND Ground...
  • Page 234 2GN/2GP/2GR Connector Pin No. Signal Voltage Description YC10 SLEEP 0/5 V DC SLEEP signal Connected 5 V DC 5 V DC power output to the main 5 V DC 5 V DC power output 5 V DC 5 V DC power output 5 V DC 5 V DC power output 5 V DC...
  • Page 235 2GN/2GP/2GR 2-3-2 Engine PWB Engine PWB Buffer Optional (U12) finisher MPWB (U2) Buffer Optional (U13) paper feeder 3.3 V EEPROM (U3) Switches (U11) Sensors Clutches Motors HVTPWB Engine G/A (U8) Reset IC (U9) Figure 2-3-3 Engine PWB diagram YC22 YC12 YC13 YC14 YC16...
  • Page 236 2GN/2GP/2GR Connector Pin No. Signal Voltage Description CFM3,4 0/24 V DC CFM3,4: On/Off Connected ZCROSS 0/5 V DC (pulse) Zero-cross signal to the power +5VD 5 V DC 5 V DC power input source PWB FH-M ON 0/5 V DC FH-M: On/Off FH-S ON 0/5 V DC...
  • Page 237 2GN/2GP/2GR Connector Pin No. Signal Voltage Description WTDSW 0/5 V DC WTDSW: On/Off Connected Ground to the MP 0/5 V DC OFS: On/Off unit, waste Ground toner box detection FRCSW 0/5 V DC FRCSW: On/Off switch, over- Ground flow sensor, CFM1 0/24 V DC CFM1: On/Off...
  • Page 238 2GN/2GP/2GR Connector Pin No. Signal Voltage Description Ground Connected MPFSW 0/5 V DC MPFSW: On/Off to the MP +5VD 5 V DC 5 V DC power output feed switch, +5VD 5 V DC 5 V DC power output toner con- tainer sen- 0/5 V DC TCS: On/Off...
  • Page 239 2GN/2GP/2GR Connector Pin No. Signal Voltage Description YC10 CFM11,12,13 0/24 V DC CFM11,12,13: On/Off Connected DUP P0 0/5 V DC Duplex unit distinction signal to the regis- +24VDR 24 V DC 24 V DC power output tration CFM8,9,10 0/24 V DC CFM8,9,10: On/Off switch, fuser unit, duplex...
  • Page 240 2GN/2GP/2GR Connector Pin No. Signal Voltage Description YC13 Ground Connected FSW3 0/5 V DC FSW3: On/Off to the feed +5VD 5 V DC 5 V DC power output switch 2/3, R24VDR 24 V DC 24 V DC power output feed clutch 2/3, left FCL3 0/24 V DC...
  • Page 241 2GN/2GP/2GR Connector Pin No. Signal Voltage Description YC14 FSSOL2 0/24 V DC FSSOL: On/Off (return) Connected FSSOL1 0/24 V DC FSSOL: On/Off (activate) to the feed- +24VDR 24 V DC 24 V DC power output shift sole- Ground noid, feedshift FSSW 0/5 V DC FSSW: On/Off...
  • Page 242 2GN/2GP/2GR Connector Pin No. Signal Voltage Description YC16 +24VDR 24 V DC 24 V DC power output Connected +24VDR 24 V DC 24 V DC power output to the Ground optional Ground built-in fin- isher +5VD 5 V DC 5 V DC power output Ground SELECT 0/5 V DC...

  • Page 243: Maintenance Parts List

    2GN/2GP/2GR 2-4 Appendixes Maintenance parts list Maintenance part name Alternative Fig. Ref. Part No. part No. Name used in service manual Name used in parts list Upper/lower paper feed pulley PULLEY,PAPER FEED 2AR07220 Upper/lower separation pulley PULLEY,SEPARATION 2AR07230 Upper/lower forwarding pulley PULLEY FEED A 2BJ06010 MP paper feed pulley...
  • Page 244 2GN/2GP/2GR Maintenance part name Alternative Fig. Ref. Part No. part No. Name used in service manual Name used in parts list Upper duplex feed roller ROLLER DU FEED UP 2BL07020 Lower duplex feed roller ROLLER DU FEED LOW 2BL07030 Duplex feed pulley PULLEY DU 2BL07040 Eject roller...

  • Page 245: Periodic Maintenance Procedures

    2GN/2GP/2GR Periodic maintenance procedures Maintenance Section Method Maintenance cycle Points and cautions Page part/location Test copy Perform at the maxi- Test copy Every service and test print mum copy size Maintenance Section Method Maintenance cycle Points and cautions Page part/location Paper feed Upper/lower paper feed Replace...
  • Page 246 2GN/2GP/2GR Maintenance Section Method Maintenance cycle Points and cautions Page part/location Optical Laser scanner unit Check or User call Clean the shield glass with a P.1-5-21 section clean dry cloth. Platen Clean 400K (30) Clean with alcohol and then a 500K (40/50) dry cloth.
  • Page 247 2GN/2GP/2GR Maintenance Section Method Maintenance cycle Points and cautions Page part/location Main charg- Drum unit Replace 400K (30) Replace. (Check and replace P.1-5-24 ing/drum 500K (40/50) when user call occurs.) section Main charger unit Clean User call Clean with a wet cloth and P.1-5-25 then a dry cloth.
  • Page 248 2GN/2GP/2GR Maintenance Section Method Maintenance cycle Points and cautions Page part/location Covers Covers Clean Every service Clean with alcohol or a dry cloth. Dust filter 1 Clean Every service Vacuum. Dust filter 2 Clean Every service Vacuum. Maintenance Section Method Maintenance cycle Points and cautions Page...

  • Page 249: Chart Of Image Adjustment Procedures

    2GN/2GP/2GR Chart of image adjustment procedures Maintenance mode Adjusting Item Image Description Original Page Remarks order Item No. Mode Adjusting the lateral squareness Adjusting the skew of the laser scanner U993 (PG2) P.1-5-23 (printing adjustment) unit (printing adjustment) Test chart Adjusting the magnification in the Polygon motor speed adjustment U053...
  • Page 250 2GN/2GP/2GR Maintenance mode Adjusting Item Image Description Original Page Remarks order Item No. Mode Adjusting magnification of the Original scanning speed U065 SUB SCAN ADJ Test chart P.1-3-23 U065: For copying an original placed on scanner in the auxiliary scanning the platen.

  • Page 251: General Wiring Diagram

    2GN/2GP/2GR General wiring diagram ISSCLKAFE AGND ISSDIAFE Flash Writer DEBUG REDEVEN SHPSW SHPSW AGND ISSDOAFE SGND REDODD ISSELAFE AGND IESSCLK ODSW ODSW GREENEVEN ISSDI SGND ISSDO AGND GREENODD ISSEL OSDS OSDS AGND ISRDY SGND BLUEEVEN OVMON AGND PAGEST BLUEODD ISPLLSYNC ISDIVSEL ISPLLSEL0 LAMP ON...

This manual is also suitable for:

Km-5050Km-4050

Table of Contents