Ricoh G157 Service Manual
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Ricoh G157 Service Manual

Ricoh G157 Service Manual

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G157
SERVICE MANUAL
00002643MIU

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Summary of Contents for Ricoh G157

  • Page 1 G157 SERVICE MANUAL 00002643MIU...
  • Page 5 G157 SERVICE MANUAL 002643MIU...
  • Page 7 It is the reader's responsibility when discussing the information contained within this document to maintain a level of confidentiality that is in the best interest of Ricoh Corporation and its member companies. NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FASHION AND DISTRIBUTED WITHOUT THE PRIOR PERMISSION OF RICOH CORPORATION.
  • Page 9 Ricoh Corporation. Users of this manual should be either service trained or certified by successfully completing a Ricoh Technical Training Program. Untrained uncertified users utilizing...
  • Page 11 LEGEND PRODUCT CODE COMPANY GESTETNER LANIER RICOH SAVIN G157 SPC210SF AC031cn SPC210SF SPC210SF DOCUMENTATION HISTORY REV. NO. DATE COMMENTS 02/2006 Original Printing...

  • Page 13: Table Of Contents

    G157 TABLE OF CONTENTS INSTALLATION 1. INSTALLATION................1-1 1.1 INSTALLATION REQUIREMENTS ............1-1 1.1.1 ENVIRONMENT ................1-1 1.1.2 MACHINE LEVEL ................1-1 1.1.3 MACHINE SPACE REQUIREMENT..........1-2 1.1.4 POWER REQUIREMENT..............1-2 1.2 INSTALLATION PROCEDURE ..............1-3 1.2.1 INSTALLING THE COPIER..............1-3 1.2.2 EEPROM CUSTOMIZATION ............1-3 1.3 MOVING THE MACHINE ................1-3 PREVENTIVE MAINTENANCE 2.
  • Page 14 3.11.2 PAPER EXIT SENSOR AND PAPER OVERFLOW SENSOR ..3-29 3.11.3 DISCHARGE BRUSH..............3-30 3.12 FUSING UNIT AND FUSING LAMP............3-31 3.13 CIRCUIT BOARD ..................3-33 3.13.1 BASE ENGINE CONTROL UNIT (BCU)........3-33 Before you Replace the BCU..............3-33 Replacement Procedure ..............3-33 After you Replace the BCU..............3-33 3.13.2 CONTROLLER ................3-34 Replacement procedure..............3-34 G157...
  • Page 15 Feed Jam....................4-20 Inner Jam....................4-20 4.3 SOFTWARE PROBLEMS ...............4-21 4.4 IMAGE QUALITY..................4-23 4.4.1 BACKGROUND ................4-23 Symptom.....................4-23 Possible Cause ...................4-23 Countermeasures ................4-23 4.4.2 MISSING IMAGE AT EDGE ............4-23 Symptom.....................4-23 Possible Cause ...................4-23 Countermeasures ................4-23 4.4.3 JITTER ...................4-24 Symptom.....................4-24 Possible Cause ...................4-24 G157...
  • Page 16 4.4.12 BANDING ..................4-29 Symptom.....................4-29 Possible Cause ...................4-29 Countermeasures ................4-29 4.4.13 WHITE BAND ................4-30 Symptom.....................4-30 Possible Cause ...................4-30 Countermeasures ................4-30 4.4.14 TONER DROP................4-30 Symptom.....................4-30 Possible Cause ...................4-30 Countermeasures ................4-30 4.4.15 WHITE SPOT / BLACK SPOT ............4-31 Symptom.....................4-31 Possible Cause ...................4-31 Countermeasures ................4-31 G157...
  • Page 17 Possible Cause ...................4-36 Countermeasures ................4-36 4.5 INCORRECT PRINTOUT ................4-37 4.6 NETWORK PROBLEMS .................4-40 4.6.1 INSTALLATION PROBLEMS ............4-40 4.6.2 PRINTING PROBLEMS..............4-41 Print job is not printed .................4-41 Error during printing ................4-41 4.6.3 PROTOCOL-SPECIFIC TROUBLESHOOTING ......4-42 4.7 OPERATION PANEL................4-44 4.8 FAX PROBLEMS..................4-46 G157...
  • Page 18 Selecting a Service Program ..............5-20 Exiting Function Mode ................5-20 Exiting Service Mode ................5-20 5.2.2 MAINTENANCE MODE FUNCTIONS ..........5-21 5.2.3 DETAILED DESCRIPTIONS OF MAINTENANCE MODE FUNCTIONS ..............5-22 EEPROM Parameter Initialization (Function mode 01 or 91)....5-22 Printout of Scanning Compensation Data (Function mode 05) ...5-23 G157...
  • Page 19 WSW19 (Transmission speed setting)..........5-61 WSW20 (Overseas communications mode setting)......5-62 WSW21 (TAD setting 1)..............5-63 WSW22 (ECM and call waiting caller ID)..........5-64 WSW23 (Communications setting) .............5-65 WSW24 (TAD setting 2)..............5-66 WSW25 (TAD setting 3)..............5-67 WSW26 (Function setting 4) ...............5-68 WSW27 (Function setting 5) ...............5-69 G157...
  • Page 20 6. DETAILED DESCRIPTIONS ............6-1 6.1 OVERVIEW ....................6-1 6.1.1 COMPONENT LAYOUT ..............6-1 Main Frame...................6-1 ADF.......................6-2 6.1.2 PAPER PATH ...................6-3 6.1.3 DRIVE LAYOUT ................6-4 6.1.4 BOARD STRUCTURE..............6-5 Controller ....................6-6 Base Engine Control Unit (BCU)............6-6 Power Supply Unit and High Voltage Unit..........6-6 G157 viii...
  • Page 21 6.7.1 DRIVE.....................6-27 6.7.2 TRANSFER BELT SENSOR AND ID SENSOR ......6-28 Transfer Belt Sensor ................6-28 ID Sensor....................6-28 ID Sensor Cleaning................6-29 6.7.3 TRANSFER BELT CLEANING ............6-30 Cleaning Mechanism ................6-30 Drive ....................6-30 Contact-Release Mechanism..............6-31 Waste Toner Agitator ................6-32 6.7.4 WASTE-TONER COLLECTION UNIT ..........6-33 G157...
  • Page 22 6.11 PAPER EXIT UNIT ................6-48 Drive ....................6-48 Paper Exit Sensor ................6-48 Paper Overflow Sensor...............6-48 6.12 CONTROLLER ..................6-49 6.12.1 OVERVIEW ..................6-49 6.12.2 BOARD LAYOUT................6-49 6.12.3 BLACK OVER PRINT ..............6-50 Black Over Print Disabled ..............6-50 Black Over Print Enabled..............6-50 6.13 USB 2.0 ....................6-51 G157...
  • Page 23 3. SOFTWARE ACCESSORIES ..............7-7 3.1 PRINTER DRIVERS ................7-7 3.2 UTILITY SOFTWARE ................7-7 4. MACHINE CONFIGURATION ..............7-8 5. OPTIONAL EQUIPMENT ................7-9 5.1 PAPER TRAY UNIT................7-9 LEGAL PAPER TRAY ...............7-9 PAPER TRAY UNIT (G389) SEE SECTION G389 FOR DETAILED SECTION DESCRIPTION G157...

  • Page 25: Important Safety Notices

    IMPORTANT SAFETY NOTICES PREVENTION OF PHYSICAL INJURY 1. Before disassembling or assembling parts of the printer and peripherals, make sure that the printer power cord is unplugged. 2. The wall outlet should be near the printer and easily accessible. 3. If any adjustment or operation check has to be made with exterior covers off or open while the main switch is turned on, keep hands away from electrified or mechanically driven components.

  • Page 26: Laser Safety

    SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL 1. Do not incinerate toner bottles or used toner. Toner dust may ignite suddenly when exposed to an open flame. 2. Dispose of used toner, the maintenance unit which includes developer or the organic photoconductor in accordance with local regulations. (These are non-toxic supplies.) 3.

  • Page 27: Symbols And Abbreviations

    Trademarks Microsoft ® , Windows ® , and MS-DOS ® are registered trademarks of Microsoft Corporation in the United States and /or other countries. ® PostScript is a registered trademark of Adobe Systems, Incorporated. ® is a registered trademark of Hewlett-Packard Company. ®...
  • Page 29 INSTALLATION PREVENTIVE MAINTENANCE REPLACEMENT AND ADJUSTMENT TROUBLESHOOTING SERVICE TABLES DETAILED DESCRIPTIONS SPECIFICATIONS PAPER TRAY UNIT G389...

  • Page 31: Installation

    INSTALLATION...

  • Page 33: Installation Requirements

    7. Install the machine at locations lower than 2,500 m (8200 ft.). 8. Install the machine on a strong, level base. 9. Do not install the machine areas that get strong vibrations. 1.1.2 MACHINE LEVEL Front to back: 1 degree or less Left to right: 1 degree or less G157...

  • Page 34: Machine Space Requirement

    3. Ground the machine. 1. Input voltage level: 120 V, 50/60 Hz, 11 A or less 220 V ~ 240 V, 50/60 Hz: More than 6 A 2. Permissible voltage fluctuation: ±10 % 3. Do not put anything on the power cord. G157...

  • Page 35: Installation Procedure

    NOTE: Do not remove the waste toner bottle. Waste toner may fall from the waste toner path. 6. Protect the photoconductor unit surface with paper or cloth. 7. Clean the units and components in the copier. 8. Secure the paper tray and all exterior covers with tape. G157...

  • Page 37: Preventive Maintenance

    PREVENTIVE MAINTENANCE...

  • Page 39: User Maintenance

    2) The user must do user function 74 (OPC Belt) after they replace the OPC belt unit: ( User’s Guide, Appendix C “Troubleshooting and Routine Maintenance”, Replacing the consumable items). This section of the User’s Guide also contains procedures for replacing user- maintenance items. G157...

  • Page 40: Service Maintenance

    2) The life is decided by the number of developmetnts. The number in the table is calculated for the conditions above. 3) These are yield parts only. But the expected yield is the same as the machine durability under the target conditions. G157...

  • Page 41: Replacement And Adjustment

    REPLACEMENT AND ADJUSTMENT...

  • Page 43: Exterior Covers

    NOTE: If you just remove the top cover, you can skip steps from 2 to 4. G157R541.WMF 3. Arm holds [C] and [D] ( x 1 each) 4. Pull arm L [E] and R [F] (two pull arm springs) G157R542.WMF G157...

  • Page 44: Right Cover

    6. Top cover [B] ( x 4, two hooks) G157R560.WMF 3.1.2 RIGHT COVER 1. Top cover ( 3.1.1) 2. Open the front cover ( 3.1.6) 3. Open the rear cover ( 3.1.7) 4. Right cover [A] ( x 2) G157R902.WMF G157...

  • Page 45: Left Front And Left Rear Cover

    2. Top cover ( 3.1.1) 3. Open the front cover. ( 3.1.6) 4. Left front cover [B] ( x 2) G157R565.WMF 3.1.4 TOP SIDE L COVER 1. Left rear cover ( 3.1.3) 2. Top side L cover [A] ( x 1) G157R505.WMF G157...

  • Page 46: Top Side R Cover

    2. Top side R cover [A] ( x 1) G157R584.WMF 3.1.6 FRONT COVER 1. Open the front cover [A]. 2. Front cover ( x 8) 3. Release the securing band [B] from the machine’s side. 4. Internal cover [C] (Pin x 2) G157R567.WMF G157...

  • Page 47: Rear Cover

    7. Rear cover (with the transfer unit and the paper exit unit) [A] ( x 1) 3.2 SCANNER UNIT 1. Left rear cover ( 3.1.3) 2. Controller box cover ( 3.13.2) 3. Top side L ( 3.1.4) 4. Harness cover [A] (three hooks) 5. Two ground cables ( x 1) G157R507.WMF G157...
  • Page 48 6. Disconnect the four harnesses [A] and one flat cable [B]. G157R585.WMF 7. Open the scanner unit [C]. 8. Scanner slider L [D] and R [E] ( 2 each) G157R539.WMF 9. Cable cover [F] 10. Scanner unit [G] G157R540.WMF G157...

  • Page 49: Adf

    3.3 ADF 3.3.1 ADF COVER 1. ADF cover [A] (Two hooks) G157R511.WMF 3.3.2 GEAR COVER 1. Open the ADF unit [A]. 2. Release the hook [B]. G157R514.WMF 3. Gear cover [C] G157R515.WMF G157...

  • Page 50: Transport Pressure Roller 1

    2. Transport pressure roller 1 [A] (Two hooks) 3. Two springs [B] 4. Two pressure rollers [C] G157R512.WMF 3.3.4 FEED ROLLER UNIT 1. ADF cover ( 3.3.1) 2. Gear cover ( 3.3.1) 3. Feed roller unit [A] (Bushing x 1) G157R516.WMF G157...

  • Page 51: Separation Pad

    3.3.5 SEPARATION PAD 1. Feed roller unit ( 3.3.4) 2. Original tray [A] ( x 4, four hooks) G157R517.WMF 3. Separation pad unit [B] 4. Separation pad [C] G157R520.WMF G157...

  • Page 52: Document Guide Unit

    2. Original tray ( 3.3.5) 3. Document guide unit [A] ( x 3, x 2, one ground wire, two hooks) G157R519.WMF 3.3.7 EXIT ROLLER 1. Feed roller unit ( 3.3.4) 2. Original tray ( 3.3.5) 3. Exit roller [A] G157R526.WMF G157 3-10...

  • Page 53: Exit Pressure Roller

    3.3.9 TRANSPORT ROLLER 1. Feed roller unit ( 3.3.4) 2. Original tray ( 3.3.5) 3. Transport roller [A] G157R525.WMF 3.3.10 TRANSPORT PRESSURE ROLLER 2 1. Open the ADF unit. 2. Transport pressure roller 2 [A] (Two springs) G157R536.WMFFF 3-11 G157...

  • Page 54: Adf Motor

    1. Feed roller unit ( 3.3.4) 2. Original tray ( 3.3.5) 3. Transport roller ( 3.3.9) 4. Exit roller ( 3.3.7) 5. ADF drive gear unit [A] ( x 3, x 1) G157R528.WMF 6. ADF drive motor [B] ( x 1) G157R529.WMF G157 3-12...

  • Page 55: Leading Edge And Trailing Edge Sensor Board

    3.3.12 LEADING EDGE AND TRAILING EDGE SENSOR BOARD 1. Feed roller unit 3.3.4) 2. Original tray ( 3.3.5) 3. Trailing edge sensor actuator G157R531.WMF 4. Leading edge sensor actuator G157R532.WMF 5. Leading edge and trailing edge sensor board [C] ( G157R533.WMF 3-13 G157...

  • Page 56: Adf Unit

    3.3.13 ADF UNIT 1. Left rear cover ( 3.1.3) 2. Controller box cover ( 3.13.2) 3. Disconnect two ADF harnesses [A] [B] from the controller. G157R583.WMF 4. ADF unit [C] ( x 1) G157R535.WMF G157 3-14...

  • Page 57: Operation Panel

    OPERATION PANEL 3.4 OPERATION PANEL 3.4.1 OPERATION PANEL BOARD 1. Operation panel cover [A] G157R545.WMF 2. Operation panel unit [B] ( x 1) G157R546.WMF 3. Operation panel board [C] ( x 1, flat cable x 1, five hooks) G157R548.WMF 3-15 G157...

  • Page 58: Lcd Panel

    OPERATION PANEL 3.4.2 LCD PANEL 1. Operation panel board ( 3.4.1) 2. Operation panel rubber [A] G157R550.WMF 3. LCD cover [B] (Four hooks) 4. LCD unit [C] G157R551.WMF 5. LCD panel [D] G157R552.WMF G157 3-16...

  • Page 59: Optics Unit

    3.5.2 REMOVING THE LASER OPTICS UNIT 1. Open the front cover. ( 3.1.6) 2. All development units 3. OPC belt unit ( 3.6.1) 4. Optics unit cover [A] ( x 2) 5. Optics unit [B] ( x 1, x 4) G157R907.WMF 3-17 G157...

  • Page 60: Opc

    4. OPC belt unit [E] Necessary Setting You must do the “CARED BL UNIT ?” procedure after you replace the OPC belt unit. ( 5.1.2 SERVICE MODE FUNCTIONS: "SERVICE MODE" > "CLEAR CARE" > "CARED BL UNIT ?") G157R570.WMFFF G157 3-18...

  • Page 61: Opc Belt Sensor

    4. Left holder [D] and right holder [E] with the charge roller and the cleaning roller 5. Charge roller gear [F] ( x 1) 6. Cleaning roller gear [G] ( x 1) 7. Left holder 8. Right holder G157R911.WMF 3-19 G157...

  • Page 62: Erase Lamp

    3.6.4 ERASE LAMP G157R571.WMF 1. Open the scanner unit ( 3.2) 2. All development units 3. OPC belt unit ( 3.6.1) 4. Transfer belt unit ( 3.8.1) 5. Erase lamp [A] ( x 1, x 2) G157 3-20...

  • Page 63: Development

    7. High voltage unit base [B] ( x 1, x 3) 8. Receptor of the toner end sensor [C] ( x 1) Reassembling Attach the upper end of the emitter with the 3x6 screw. Attach the lower with the 3x8 screw. G157R577.WMF 3-21 G157...

  • Page 64: Development Unit Sensor And Development Clutch

    7. High voltage unit base [A] x 1, x 3) 8. Sensor bracket (with the development unit sensor) [B] x 2) G157R915.WMF 9. Development unit sensor (with the circuit board) [C] ( x 2) 10. Development clutch [D] ( x 2) G157R916.WMF G157 3-22...

  • Page 65: Transfer Belt

    1. All development units 2. OPC belt unit ( 3.6.1) 3. Transfer belt unit ( 3.8.1) 4. Erase lamp base [A] x 3, x 2) 5. Transfer belt sensor [B] 6. ID sensor [C] ( x 2) G157R573.WMF 3-23 G157...

  • Page 66: Transfer Belt Cleaning Unit And Waste Toner Duct

    You must do clear the PM counter after you replace the transfer belt-cleaning unit. 5.1.2 SERVICE MODE FUNCTIONS: "SERVICE MODE" > "CLEAR CARE" > "CARED TR BELT?"). Note that this counter is also used for the transfer roller. G157 3-24...

  • Page 67: Waste Toner Collection Unit

    You cannot remove the waste toner sensor from the bottle holder. Replace the waste toner sensor with the bottle holder. 1. Right cover ( 3.1.2) 2. Waste toner bottle 3. Bottle holder [A] ( x 1, x 2) G157R922.WMF 3-25 G157...

  • Page 68: Waste Toner Duct

    2. Cover the area below the waste toner duct with paper or cloth. NOTE: When you remove the waste toner duct, waste toner comes out of the duct. 3. Support bracket [A] ( x 1) 4. Waste toner duct [B] G157 3-26...

  • Page 69: Paper Feed

    2. Paper guide 1 ( 3.10.2) 3. Paper guide 2 ( 3.10.2) 4. Paper sensor assembly [A] x 2) 5. OHP sensor [B] x 1, x 2) 6. Paper end sensor [C] ( x 1) 7. Registration sensor [D] x 1) G157R925.WMF 3-27 G157...

  • Page 70: Temperature Sensor, Paper Size Sensor And Paper Tray Sensor

    6. Left rail of the paper tray [B] ( x 2) NOTE: The screws are behind the Power supply unit. 7. Paper size sensor and paper tray sensor [C] ( x 1, x 2) NOTE: Put the connector through the opening behind the Power supply unit. G157 3-28...

  • Page 71: Paper Transfer And Paper Exit

    G157R927.WMF 3.11.2 PAPER EXIT SENSOR AND PAPER OVERFLOW SENSOR 1. Open the rear cover [A]. 2. Paper exit unit [B] ( x 4) 3. Paper exit sensor [C] 4. Paper overflow sensor [D] G157R928.WMF 3-29 G157...

  • Page 72: Discharge Brush

    PAPER TRANSFER AND PAPER EXIT 3.11.3 DISCHARGE BRUSH 1. Paper exit unit ( 3.11.2) 2. Lock shaft cover [A] 3. Lock shaft [B] ( x 2) 4. Discharge brush [C] G157R930.WMF G157 3-30...

  • Page 73: Fusing Unit And Fusing Lamp

    2. Release the locks [A][B]. 3. Fusing unit [C] Necessary Setting You must do the “CARED FU UNIT ?” procedure after you replace the fusing unit. 5.1.2 SERVICE MODE FUNCTIONS: "SERVICE MODE" > "CLEAR CARE" > "CARED FU UNIT?") G157R576.WMF 3-31 G157...
  • Page 74 [E] 9. Bottom cover [F] ( x 4) NOTE: One screw is at the right end [G]. The other three are on the bottom. G157R932.WMF 10. Left bracket [H] ( x 2) 11. Fusing lamp [I] G157R933.WMF G157 3-32...

  • Page 75: Circuit Board

    4. BCU [B] (Flat cable x 1, x 5) After you Replace the BCU 1. Start “SERVICE MODE”. 2. Execute the service modes above. 3. Input the values that you noted previously for each of the above G157R934.WMF service modes. 3-33 G157...

  • Page 76: Controller

    4. Do the EEPROM Parameter Initialization (Function mode 01 or 91 in the "Maintenance mode" 5.2.3). 5. Do the ID Code Entry for the EEPROM. 1) Enter the "Function Mode 80" in the "Maintenance mode" ( 5.2.3). 2) Press "9", "4", "7" and "5" keys in this order. G157 3-34...
  • Page 77 • EUROPE version: "U.K" and "SELECT ↑↓ & SET" appear alternately. 4. Use the" " and " " keys to select the target country, and then press the "Menu/Set" key. 5. The machine displays "ACCEPTED" on the LCD and returns to the stand-by mode. 6. Do procedure 1. 3-35 G157...

  • Page 78: Ncu (Network Control Unit)

    2. Controller box cover ( 3.13.2) 3. NCU [A] ( x 3, x 1) G157R556.WMF 3.13.4 NCU BATTERY 1. Left rear cover ( 3.1.3) 2. Controller box cover ( 3.13.2) 3. NCU battery [A] ( x 1) G157R553.WMF G157 3-36...

  • Page 79: Power Supply Unit (Direct Current)

    7. Controller box with BCU bracket [A] ( x 4; one screw for ground cable x 2) 8. Left frame [B] ( x 2, x 4, ground cable x 1) G157R510.WMF 9. Power supply board [C] (All x 7) 3-37 G157...

  • Page 80: High Voltage Unit

    You can get an electrical shock if you touch the unit when the power plug is connected. G157R937.WMF 1. Controller box with BCU bracket ( 3.13.5) 2. Fan cover (hook x 1) 3. High voltage board [A] ( x 7 for terminals, x 4) G157 3-38...

  • Page 81: Drive Path

    3.14.1 MAIN MOTOR DRIVE PATH G157R938.WMF 1. Top cover ( 3.1.1) 2. Right cover ( 3.1.2) 3. Main motor [A] ( x 4) 4. Gear box [B] ( x 4) 5. Release the cable holder [C] from the gear assemblies. 3-39 G157...
  • Page 82 12. Paper transfer clutch [E] ( x 1) 13. Registration clutch [F] ( x 1) 14. Paper feed clutch [G] ( x 1) 15. Right frame [H] ( x 6) 16. Lower gear assembly [I] ( x 4) G157 3-40...

  • Page 83: Development Motor Drive Path

    7. Waste toner bottle [E] 8. Bottle holder [F] ( x 2) 9. Development clutch C [G] ( x 1) 10. Development units 11. Development unit drive gears [H] ( x 1) 12. Development gear assembly [I] ( x 4) 3-41 G157...

  • Page 84: Exhaust Fan

    3.15.2 PSU FAN 1. Top cover ( 3.1.1) 2. PSU fan assembly [A] ( x 1) 3. PSU fan [B] Reassembling Put the side with the fan label [C] to the left side of the printer when you reassemble. G157R942.WMF G157 3-42...

  • Page 85: Speaker

    2. Speaker [A] (Four hooks) G157R566.WMF 3.15.4 FUSING FAN 1. Scanner unit ( 3.2) 2. Top cover ( 3.1.1) 3. Controller ( 3.13.2) 4. Fusing fan base [A] ( x 3, x 1) 5. Fusing fan [B] G157R581.WMF 3-43 G157...

  • Page 86: Interlock Switch

    2. Front cover switch [A] G157R944.WMF 3.16.2 TOP AND REAR COVER SWITCHES 1. Top cover ( 3.1.1) 2. PSU fan assembly ( 3.15.2 3. Rear cover switch [A] ( x 1) 4. Top cover switch [B] ( x 1) G157R582.WMF G157 3-44...

  • Page 87: Registration

    0.5 mm value for each tray and the duplex unit: • Margin Adjust: Left Tray 1 (Standard paper tray) • Margin Adjust: Left1 Tray 2 (Optional paper feed unit) NOTE: Default depends on the adjustment in the factory. 3-45 G157...

  • Page 89: Troubleshooting

    TROUBLESHOOTING...

  • Page 91: Error Indication

    The other person or other Try to send or receive again. person’s fax machine stopped the call. Document Jam The document was not Remove the jammed document inserted or fed properly, or paper. the document scanned from the ADF was too long. G157...
  • Page 92 The toner is used up and Replace the used toner cartridge with printing is not possible. a new one. X = C, M, Y, BK, Toner Error The machine has detected Use only RICOH genuine toner an incompatible toner cartridges. cartridge. G157...
  • Page 93 -OR- Clear the faxes from the memory. (Printing operation in progress) Reduce print resolution. (See Advanced tad in the Software User’s Guide on the CDROM.) -OR- Clear the faxes from the memory. -OR- Add more memory. G157...

  • Page 94: Machine Errorxx (Xx Indicates The Error Code Number)

    Contact failure of harness Check the connection of low error at warming connector the harness connector. Low input voltage Connect the machine to the rated voltage source. Fuser temperature Low input voltage Connect the machine to low error the rated voltage source. G157...
  • Page 95 Replace the BCU board. Black development Toner cartridge defective Replace the toner solenoid error cartridge. Solenoid assy defective Replace the solenoid assy. BCU board defective Replace the BCU board. Transfer belt error Transfer unit defective Replace the transfer unit. G157...
  • Page 96 The cyan toner cartridge is ––– near-empty nearly empty. Magenta toner The magenta toner cartridge ––– near-empty is nearly empty. Yellow toner The yellow toner cartridge is ––– near-empty nearly empty. Black toner The black toner cartridge is ––– near-empty nearly empty. G157...
  • Page 97 Set the registration feed operation.) unhooked sensor actuator in the correct place. BCU board defective Replace the BCU board or the controller. Printing paper jam The paper exit roller does not Replace the paper exit (The registration rotate correctly. roller. G157...
  • Page 98 ON during Trailing edge sensor actuator Correct the surrouding document feed-in. caught on the surrounding parts on which the parts actuator is caught. Trailing edge sensor broken Replace trailing edge sensor. Not used ––– ––– G157...
  • Page 99 Not used ––– ––– BF~CF Not used D0~DF Mode error BCU or controller defective Replace the BCU and/or controller. E0~E3 Not used Not used ––– ––– Not used Write error in BCU defective Replace the BCU. EEPROM Not used G157...

  • Page 100: Copier Errors

    3. Replace the BCU. SVC D2 Development Clutch (M) Error: 1. Check the harness connection. (MCN4: pin17, 18) Connector is not properly connected with Clutch, and/or Harness is 2. Replace the Development Clutch shorted or cut. (M). 3. Replace the BCU. G157 4-10...
  • Page 101 SVC E5 Paper Transfer Clutch Error: 1. Check the harness connection. (MCN4: pin 5, 6) Connector is not properly connected with Clutch, and/or Harness is 2. Replace the Paper Transfer Clutch. shorted or cut. 3. Replace the BCU. 4-11 G157...
  • Page 102 3. Replace the BCU. SVC H0 Fusing Thermistor Error: 1. Check the harness connection. (FUCN: pin 1 ~ 8) Temperature signal from Thermistor is not detected. (Wire Cut Detection) 2. Replace the Fusing Unit . 3. Replace the BCU. G157 4-12...
  • Page 103 1. Check the harness connection. (MCN8: pin 2, 4, 6, 8, 10, 12) Connector Harness between BCU and Toner End Sensor (the light 2. Replace the Receptor of the Toner receiving side) is not properly End Sensor. connected. 3. Replace the BCU. 4-13 G157...
  • Page 104 Possible Cause Countermeasure Code SVC N6 Paper Feed Unit Connection Error: 1. Check the harness connection. (MCN6: pin 13) Connector Harness between BCU and PFU is not properly connected. 2. Replace the Paper Feed Unit. 3. Replace the BCU. G157 4-14...

  • Page 105: Communication Errors

    A frame of 3 seconds or longer was received. CRC error received. Error command received. Invalid command received. Command ignored once for document setting or for printing-out for turn-around transmission. T5 time-out error CRP received. EOR and NULL received. 4-15 G157...
  • Page 106 Causes Vertical resolution capability changed after compensation of background color. [6] ID checking Code 1 Code 2 Causes Password plus "lower 4 digits of telephone number" not the same. Password not the same. Polling ID not the same. G157 4-16...
  • Page 107 No video data to be sent. Unable to continue to receive color fax (remaining toner insufficient). RTN, PIN or ERR received at the calling terminal. NOTE RTN, PIN or ERR received at the calling terminal. NOTE NOTE: Available in German models only 4-17 G157...
  • Page 108 Code 2 Causes Failed to detect 1300 Hz signal during a burn-in operation. Failed to detect tone signals during a burn-in operation. [13] Equipment error Code 1 Code 2 Causes Equipment error (For XX, 4.1.1 Machine Error xx) G157 4-18...

  • Page 109: Paper Transport Errors

    2. Toner cartridge (K, Y, M, C) 8. Rear cover ass’y 3. Paper tray 9. Fusing Unit 4. Paper feed roller 10. Cleaning roller 5. Transfer belt 11. Paper roller ass’y 6. Registration roller ass’y 12. Belt cartridge 4-19 G157...

  • Page 110: Jam Recovery Procedures

    Is the fusing unit properly Secure the fusing unit with locked? Fusing unit Fusing Unit Is there any paper caught Remove the caught between the rollers? paper. P/S: This stands for "Procedure Step". G157 4-20...

  • Page 111: Software Problems

    Controller Is it possible to print with Replace the BCU and/or failure another PC and printer controller. cable? This problem may appear with some system environments. Check the environment that the user used. 4-21 G157...
  • Page 112 Properties’ in the Control Panel? USB cable/ Does “Add New The USB cable is damaged. machine Hardware Wizard” Replace the cable. If the damage appear on the screen or same problem appears, the Does test print machine is damaged. complete? G157 4-22...

  • Page 113: Image Quality

    There are some missing areas at the edges of toner images. Possible Cause 1) Not sufficient toner mass amount and/or charge amount in the development procedure. G157T902.TIFF 2) The OPC belt is damaged. Countermeasures 1) Replace the development unit. 2) Replace the OPC belt unit. 4-23 G157...

  • Page 114: Symptom

    4) Failure in the development unit drive G157T903.TIFF path. Countermeasures 1) Replace the gears on the OPC belt drive path. 2) Replace the OPC belt unit. 3) Replace the gearbox. 4) Replace the gears in the development unit drive path. G157 4-24...

  • Page 115: Symptom

    1) Check that the copier is installed on a level surface. 2) Shake the toner cartridge horizontally several times. 3) Replace the development unit. 4) Close the rear cover correctly. 5) Replace the OPC belt unit. 6) Replace the development solenoid 4-25 G157...

  • Page 116: Symptom

    2) The development roller’s surface is damaged. Countermeasures 1) Execute the test print. 2) Isolate the development unit that G157T906.TIFF causes the white line. 3) Remove the unwanted particles from the development roller. G157 4-26...

  • Page 117: Symptom

    2) Stain on the OPC belt charge roller. 3) Stain on the OPC belt. 4) Stain on the transfer belt. Countermeasures 1) Replace the development unit. 2) Replace the OPC belt unit. 3) Replace the transfer belt unit. G157T908.TIFF 4-27 G157...

  • Page 118: Symptom

    Countermeasures 1) Clean the stain on the OPC belt unit. 2) Clean the stain on the transfer belt. 3) Remove the transfer unit cleaning G157T910.TIFF unit. Then clean the inside and outside of the waste toner feeder. G157 4-28...

  • Page 119: Symptom

    2) The OPC belt and the transfer belt fail to maintain the regular and proper rotation due to the impact caused during the retraction of the toner cartridge. G157T912.TIFF Countermeasures 1) Replace the OPC belt unit. 2) Replace the development unit. 4-29 G157...

  • Page 120: Symptom

    Check the seal on the transfer-belt cleaning unit. Replace the transfer- belt cleaning unit if necessary. c) Check the waste toner path. If waste toner stays, remove it with a vacuum cleaner. 2) Clean or replace the development unit. G157 4-30...

  • Page 121: Symptom

    If it is on the transfer belt, the G157T916.TIFF cause is the retract error of the transfer belt or cleaning roller. 2) Replace the spring clutch or the development solenoid. 3) Replace the transfer roller clutch. 4) Replace the transfer-belt cleaning solenoid. 4-31 G157...

  • Page 122: Symptom

    Countermeasures 1) Check that the rear cover is correctly locked. 2) Replace the papers with new papers. 3) Replace the development unit. 4) Check that the transfer roller unit is correctly installed. 5) Replace the high voltage unit. G157 4-32...

  • Page 123: Symptom

    1) The hot roller or the pressure unit in the fusing unit is damaged. 2) The fusing temperature is not correctly controlled. 3) The paper type is not set correctly. Countermeasures 1) Replace the fusing unit. 2) Check the mode setting of the paper. G157T920.TIFF 4-33 G157...

  • Page 124: Symptom

    G157T922.TIFF Countermeasures 1) Check the laser beam path and remove unwanted particles. 2) Replace the development unit. 3) Check the development solenoid. 4) Check the transfer roller unit is correctly installed. 5) Replace the high voltage unit. G157 4-34...

  • Page 125: Symptom

    4) Check that the transfer roller unit is correctly installed. 5) Replace the transfer roller unit. 6) Check that the rear cover is correctly locked. 7) Replace the) rear cover. 8) Clean the dustproof glass of the optics unit. 9) Replace the optics unit. 4-35 G157...

  • Page 126: Symptom

    • The cleaning mechanism of the ID sensor NOTE: The copier operates even when the message " Belt marker sensor error " is displayed. In a condition like this, the image density on the outputs can be incorrect. G157 4-36...

  • Page 127: Possible Cause

    Is it possible to print the Identify the error type, and machine test page? then refer to the specified section of this chapter. NOTE: If the machine prints garbage or incorrect fonts, see the Troubleshooting section of Appendix C in the User’s Guide. 4-37 G157...
  • Page 128 1. Most laser printers have a restricted area that cannot be printed on. Usually the first two lines and last two lines of text cannot print (leaving 62 printable lines). 2. Adjust the top and bottom margins in your document to allow for this. G157 4-38...
  • Page 129 2. Remember that the machine emulates a wide selection of machines: • HP Laser Jet 6P, HP Laser Jet 6P, Epson FX-850, IBM proprinter XL 3. Try setting the machine into HP emulation, and then select ‘HP LaserJet 6P’ in the application software. 4-39 G157...

  • Page 130: Network Problems

    1. Make sure that the machine is powered on, is on-line and ready to print. 2. Check if there is any LED activity. Ricoh print servers have two LEDs on the back panel of the machine. The upper LED shows link status. The lower LED shows activity (Receive/Transmit status).

  • Page 131: Printing Problems

    If the waiting time of your print job exceeds a certain limit, a time out occurs, which causes the error message. In such situations, do the print job again after the other jobs are completed. 4-41 G157...

  • Page 132: Protocol-Specific Troubleshooting

    If you are having trouble printing on a Windows 95/98/Me, Windows NT 4.0 or later Peer-to-Peer network (LPR method), check the following: 1. Make sure that the Ricoh LPR Port driver is correctly installed and configured ® ® according to the Windows 95/98/Me or Windows NT 4.0 Peer-to-Peer...
  • Page 133 ISP or proxy server every time you wish to look at the printer server. 2. Make sure that you are using the proper web browser. We recommend ® ® Netscape Navigator version 4.0 or later/ Microsoft Internet Explorer version 5.0 or later. 4-43 G157...

  • Page 134: Operation Panel

    PCB. solves the problem. Low-voltage Replacement of low- Replace the direct current power supply voltage power supply unit (low-voltage power PCB solves the problem. supply PCB). Controller Replacement of PCB Replace the BCU and/or solves the problem. controller. G157 4-44...
  • Page 135 Replacement of rubber Replace the rubber key key solves the problem. Control panel Replacement of Replace the operation panel operation panel PCB PCB. solves the problem. Controller Replacement of PCB Replace the BCU and/or solves the problem. controller. 4-45 G157...

  • Page 136: Fax Problems

    Replacement of NCU Replace the NCU PCB. PCB solves the problem. Control panel Replacement of Replace the operation panel operation panel PCB PCB. solves the problem. Controller Replacement of PCB Replace the BCU and/or solves the problem. controller. G157 4-46...
  • Page 137 Replacement of rubber Replace the rubber key. key solves the problem. NCU PCB Replacement of NCU Replace the NCU PCB. PCB solves the problem. Control panel Replacement of Replace the operation panel operation panel PCB PCB. solves the problem. 4-47 G157...
  • Page 138 NCU PCB Speaker Replacement of speaker Replace the speaker. solves the problem. NCU PCB Replacement of NCU Replace the NCU PCB. PCB solves the problem. Controller Replacement of PCB Replace the BCU and/or solves the problem. controller. G157 4-48...
  • Page 139 NCU PCB Harness Harness is damaged. Replace the harness. between controller and NCU PCB NCU PCB Replacement of NCU Replace the NCU PCB. PCB solves the problem. Controller Replacement of PCB Replace the BCU and/or solves the problem. controller. 4-49 G157...

  • Page 140: Electrical Component Defects

    Paper end MCN9 The message is not displayed while no paper interrupted is in the tray. The message “JAM-A” or “JAM-B” is Interrupted Paper displayed. MCN7 size/tray The message “Trayx Load zzzz” is displayed. interrupted G157 4-50...

  • Page 141: Blown Fuse Condition

    ELECTRICAL COMPONENT DEFECTS 4.9.2 BLOWN FUSE CONDITION The table lists the fuse on the power supply unit. Rating Fuse Symptom 115V 220V-240V F001 20A/250V 20A/250V No Response F002 6.3A/125V 6.3A/125V No Response 4-51 G157...

  • Page 143: Service Tables

    SERVICE TABLES...

  • Page 145: Service Mode Menu

    • When the copier is turned off: 1. Press the "Online" key and " ", and then hold them down. 2. Turn on the main power switch. (Keep the two keys held down.) 3. Wait until the message "Service Menu" shows. G157...

  • Page 146: Selecting A Service Program

    2. Press the "Select "key to keep the one you want to set. 3. Press the "Clear" key to go back to "TEST PRINT/NEXT" in the "Service Mode". Exiting the Service Menu 1. Turn the main power switch OFF/ON. G157...

  • Page 147: Service Mode Functions

    Inputs the total number of prints in the NVRAM, after the NVRAM was reset. EACH IMAGE SET Clears the number of total prints for each color in the NVRAM. NEXT LIFE SET Sets the replacement timing for the PM parts. G157...

  • Page 148: Code 31: Grid Print

    5. Press the "Clear" key to stop printing. The LCD SERVICE MODE screen returns to "TEST PRINT/NEXT". TEST PRINT/NEXT 6. Press the "Online" key to return to the "ONLINE" mode. 01 WAIT G157...

  • Page 149: Code 32: Next Care Information

    60000P 5. Press the "Clear" key to return to "NEXT CARE 32 NEXT CARE INFO". 23456789ABCDEFG 6. Press the "Online" key one more time to return to "SERVICE MODE". SERVICE MODE TEST PRINT/NEXT G157...

  • Page 150: Code 33: Cassette Type

    TOTAL PAGE/EACH 3. A six-digit number is displayed. This number 34 TOTAL PAGE represents the total number of pages that have been XXXXXXp. printed out. 4. Press the "Clear" key to return to "SERVICE SERVICE MODE MODE". TEST PRINT/NEXT G157...

  • Page 151: Code 35 Each Image

    6. Press the "Scroll" key to select another color, and then press the "Select" key to check the number of images created for that color. 7. Press the "Clear" key to return to "SERVICE SERVICE MODE MODE". TEST PRINT/NEXT G157...

  • Page 152: Code 36 Clear Care

    23456789ABCDEFG the PM counter. 6. Press the "Scroll" key to select a PM part, and then press the "Select" key to clear the PM counter. 7. Press the "Clear" key to return to "SERVICE SERVICE MODE MODE". TEST PRINT/NEXT G157...

  • Page 153: Code 37 Media Manage

    38 EXTEND PPC PPC (plain paper): Normal or Thin Normal / Thin MTS (labels or medium-thick stock): Normal or Glossy TS (thick stock): TS1 or TS2 5. Press the "Clear" key to return to the "SERVICE SERVICE MODE MODE". TEST PRINT/NEXT G157...

  • Page 154: Code 39 Factory Mode

    5. Press the Select key to set the adjustment. 39 FACTORY MODE 6. Press the "Clear" key to terminate the "MARGIN MARGIN ADJUST/L ADJUST" mode. 7. Press the "Clear" key one more time to return to "FACTORY MODE". G157 5-10...

  • Page 155: Code 44 Life Period Set

    PERIOD BL UNIT ? value. 060000p. 6. Press the "Clear" key to complete the setting operation. 44 LIFE PERIOD 23456789ABCDEFG 7. Press the "Clear" key one more time to return to 39 FACTORY MODE "FACTORY MODE". MARGIN ADJUST/L 5-11 G157...

  • Page 156: Code 45 Nvram Tune Up

    6. Press the "Clear" key one more time to return to the "NVM TUNE UP" mode. 45 LP TUNE UP 23456789ABCDEFG 7. Press the "Clear" key one more time to return to "FACTORY MODE". 39 FACTORY MODE MARGIN ADJUST/L G157 5-12...

  • Page 157: Code 45-2 Thv Tune Up

    6. Press the "Clear" key once again to return to the "NVM TUNE UP" mode. SIMPLEX /DUPLEX 7. Press the "Clear" key once again to return to "FACTORY MODE". 45 LP TUNE UP 23456789ABCDEFG 39 FACTORY MODE MARGIN ADJUST/L 5-13 G157...

  • Page 158: Code 45-3 Dbv Tune Up

    6. Press the "Clear" key one more time to return to the "NVM TUNE UP" mode. 45 LP TUNE UP 23456789ABCDEFG 7. Press the "Clear" key one more time to return to "FACTORY MODE". 39 FACTORY MODE MARGIN ADJUST/L G157 5-14...

  • Page 159: Code 45-4 Cbv Tune Up

    4. Press the "Clear" key one more time to return to the "NVM TUNE UP" mode. 45 LP TUNE UP 23456789ABCDEFG 5. Press the "Clear" key one more time to return to "FACTORY MODE". 39 FACTORY MODE MARGIN ADJUST/L 5-15 G157...

  • Page 160: Code 45-5 Fbv Tune Up

    4. Press the "Clear" key one more time to return to the "NVM TUNE UP" mode. 45 LP TUNE UP 5. Press the "Clear" key one more time to return to 23456789ABCDEFG "FACTORY MODE". 39 FACTORY MODE MARGIN ADJUST/L G157 5-16...

  • Page 161: Code 46 Nvram Initial

    39 FACTORY MODE MARGIN ADJUST/L The following settings must be input after executing the "NVRAM INITIAL". 43: MARGIN ADJUST 44 LIFE PERIOD SET 45 NVRAM TUNE UP 47: TOTAL PAGE SET 48: EACH IMAGE SET 49: NEXT LIFE SET 5-17 G157...

  • Page 162: Code 47 Total Page Set

    "Select" key to store the set value. 48 IMAGE OF Y 6. The display returns to "EACH IMAGE SET". XXXXXXp. 7. Press the "Clear" key to return to "FACTORY MODE". 39 FACTORY MODE MARGIN ADJUST/L G157 5-18...

  • Page 163: Code 49 Next Life Set

    "Select" key to store the set value. NEXT UNIT ? XXXXXXp. 6. The display returns to "NEXT LIFE SET". 49 NEXT LIFE SET 23456789ABCDEFG 7. Press the "Clear" key to return to "FACTORY MODE". 39 FACTORY MODE MARGIN ADJUST/L 5-19 G157...

  • Page 164: Maintenance Mode

    [F] and "Down" key [B] in the "Maintenance" mode. Exiting Function Mode Press the "Stop/Exit" key [D] to exit the function mode. Exiting Service Mode Input "99" with the "Number keys" or select "Maintenance 99" with the "Up" key and "Down" key in the "Maintenance" mode. G157 5-20...

  • Page 165: Maintenance Mode Functions

    Machine Error Code Indication User accessible Output of Transmission Log to the Telephone Line User accessible EEPROM Parameter Initialization Exit from the Maintenance Mode – Cancellation of the Memory Security Mode NOTE: The shaded functions can be accessed by users. 5-21 G157...

  • Page 166: Detailed Descriptions Of Maintenance Mode Functions

    5. Turn the machine power off and on. NOTE: If you press the "9" key twice to exit from the maintenance mode without turning the machine power off, the machine will not fully initialize the EEPROM. G157 5-22...

  • Page 167: Printout Of Scanning Compensation Data (Function Mode 05)

    White level data (B) 4960 Byte 5. After printing, the machine returns to the initial display of the maintenance mode. NOTE: If any data is abnormal, its mode will be printed in inline style (white on black, for example: 0000). 5-23 G157...

  • Page 168: Placement Of Cis Unit Position For Transportation (Function Mode 06)

    4. While counting the documents, the machine feeds them in and out, displaying the current count on the LCD as shown below. "P.xx" indicates the current count. ADF CHECK P.xx 5. Press the "Stop/Exit" key to return the machine to the initial display of the maintenance mode. G157 5-24...

  • Page 169: Test Pattern 1 (Function Mode 09)

    This function, much like the copying function, prints out test pattern 1 to allow the service personnel to check for print quality problems. 1. Press the "0" and "9" keys in this order. NOTE: The diagram below shows the test pattern. G157S902.TIF 5-25 G157...

  • Page 170: Firmware Switch Setting (Function Mode 10)

    Function setting 5 WSW54- Not used 1. Enter the "Maintenance" mode. 2. Press the "1" and "0" keys in this order. 3. The machine displays "WSW00" on the LCD and is ready to accept a firmware switch number. G157 5-26...
  • Page 171 "Stop/Exit key". 2) If there is a pause of more than one minute after a single-digit number is entered for double-digit firmware switch numbers, the machine will automatically return to the initial display of the maintenance mode. 5-27 G157...

  • Page 172: Printout Of Firmware Switch Data (Function Mode 11)

    Black Start key, the LCD cycles through the displays shown at right. Black Start key 5. Press the Stop/Exit key to return to the initial display of the maintenance mode. Black Start key Black Start key G157S907.WMF G157 5-28...

  • Page 173: Operational Check Of The Operation Panel Pcb (Function Mode 13)

    6. The machine beeps for one second and returns to the initial display of the maintenance mode after the last number key or button is pressed. 7. Press the "Stop/Exit" key to terminate this operation. 8. The machine returns to the initial display of the maintenance mode. 5-29 G157...

  • Page 174: Sensor Operational Check (Function Mode 32)

    Yellow cartridge sensor Yellow cartridge loaded. Black cartridge sensor Black cartridge loaded. Fusing unit sensor No fusing unit detected. OPC belt sensor No OPC belt detected. OPC roller sensor No OPC roller detected. Transfer roller sensor No transfer roller detected. G157 5-30...

  • Page 175: Eeprom Customizing

    "U.K" and "SELECT ↑↓ & SET" appear alternately. 5. Use the " " and " " keys to select the target country. 6. Press the "Menu/Set key". The machine displays "ACCEPTED" on the LCD and goes back to standby mode. 5-31 G157...

  • Page 176: Received Data Transfer Function (Function Mode 53)

    NOTE: Input the telephone number with the numerical keys. One-touch dialing is not allowed in this procedure. The machine displays "ACCEPTED" for approx. two seconds and starts dialing to transfer the data. No station ID will be attached. A cover page and end page will be automatically attached, instead. G157 5-32...

  • Page 177: Fine Adjustment Of Scan Start Position (Function Mode 54)

    8. Press the "Stop/Exit" key to return the machine to the initial display of the maintenance mode without adjusting the value. 9. Press the "Menu/Set" key. 10. “ACCEPTED” appears on the LCD. One second later, the machine indicates “1. ADF 2. FB” on the LCD. 5-33 G157...

  • Page 178: Acquisition Of White Level Data And Cis Scanner Area Setting (Function Mode 55)

    6. Press the Stop/Exit key to return the machine to the initial display of the maintenance mode. NOTE: If the front cover is opened, or if there is no paper in the tray during the test printing, the test printing is stopped. G157 5-34...

  • Page 179: Eeprom Customizing (Function Mode 74)

    NOTE: If you press the "Stop/Exit" key or no keys are pressed for one minute during the above procedure, the machine stops the procedure and returns to the initial display of the maintenance mode. 5-35 G157...

  • Page 180: Display Of The Equipment's Log Information (Function Mode 80)

    2) If you press the "Menu/Set" key while a "COMEER1" error is displayed, the last error, the previous error, and the second previous error are displayed in turn. The indication changes from "COMEER1", "COMEER2", to "COMEER3". G157 5-36...
  • Page 181 Number of times the OPC belt has been replaced FSRU_CH: Number of times the fusing unit has been replaced 120K_CH: Number of times the 120K kit has been replaced PFK2_CH: Number of times the paper feed rollers have been replaced 5-37 G157...

  • Page 182: Machine Error Code Indication (Function Mode 82)

    This function displays the last error on the LCD. 1. Enter the "Maintenance" mode. 2. Press the "8" and "2" keys in this order. 3. The LCD shows "MACHINE ERRORXX." 4. Press the "Stop/Exit" key to return to the initial display of the maintenance mode. G157 5-38...

  • Page 183: Output Of Transmission Log To The Telephone Line (Function Mode 87)

    1. When "SECURE MODE" is displayed on the LCD, press the "Menu/Set" key and "#" key together. 2. Within two seconds, start to press the "2", "7", "9", "0" and "0" keys. 3. The memory security mode is canceled and the machine returns to the calendar clock screen. 5-39 G157...

  • Page 184: Firmware Switches

    Selectors 3 and 4: Break time length in pulse dialing These selectors set the break time [A] length in pulse dialing. (Example: If "1," "2," and "3" are dialed when N is set by selectors 1 and 2.) "1" "2" "3" G157S501.WMF G157 5-40...
  • Page 185 This selector sets the default dialing mode (pulse dialing or tone dialing) which can be changed by the function switch. If the user switches it with the function switch when selector 7 is set to "0," the setting specified by this selector will also be switched automatically. 5-41 G157...

  • Page 186: Wsw02 (Tone Signal Setting)

    These selectors are used to adjust the sound volume of a ring backtone in the F/T mode, an on-hold sound, or a beep generated as a signal during remote control operation or at the start of ICM recording. The larger the value specified by these selectors, the greater the attenuation. G157 5-42...

  • Page 187: Wsw03 (Pabx* Mode Setting)

    Other setting combinations deactivate the dial tone detection function so that the machine starts dialing after the specified WAIT (3.5, 5.0, or 7.0 sec.) without detection of a dial tone when a line is connected. 5-43 G157...

  • Page 188: Wsw04 (Transfer Facility Setting)

    This setting is effective only when the earth function is selected for the R key by using the function switch. Selectors 7 and 8: Break time length for flash function These selectors set the break time length. G157 5-44...

  • Page 189: Wsw05 (1St Dial Tone And Busy Tone Detection)

    Other setting combinations deactivate the dial tone detection function so that the machine starts dialing after the specified WAIT (3.5, 7.0, 10.5, 14.0, 17.5, 21.0, or 24.5 seconds) without detection of a dial tone when a line is connected to the PSTN. 5-45 G157...
  • Page 190 Selector 7: Busy tone detection in automatic receiving mode This selector determines whether or not the machine automatically disconnects the line upon detection of a busy tone in automatic receiving mode. G157 5-46...

  • Page 191: Wsw06 (Redial/Pause Key Setting And 2Nd Dial Tone Detection)

    1: 2 cycle cycles Allowable instantaneous interrupt 0: 30 ms 1: 50 ms during reception of 2nd dial tone NOTE: Selectors 4 through 8 are not applicable in those countries where no dial tone detection is supported, e.g., U.S.A. 5-47 G157...
  • Page 192 This selector sets the number of dial tone detection cycles required for starting dialing. Selector 8: Allowable instantaneous interrupt during reception of 2nd dial tone This selector sets the allowable instantaneous interrupt period that should be ignored during reception of the 2nd dial tone. G157 5-48...

  • Page 193: Wsw07 (Dial Tone Setting 1)

    These selectors set the detection level of the 2nd dial tone. Selector 7: Allowable instantaneous interrupt during reception of 1st dial tone This selector sets the allowable instantaneous interrupt period that should be ignored during reception of the 1st dial tone. 5-49 G157...

  • Page 194: Wsw08 (Dial Tone Setting 2)

    These selectors set the time-out length for the 1st and 2nd dial tone detection so that the machine waits dial tone input for the specified time length and disconnects itself from the line when no dial tone is inputted. G157 5-50...

  • Page 195: Wsw09 (Protocol Definition 1)

    Selectors 7 and 8: Timeout for response from the called station in automatic sending mode If the machine (calling station) receives no response (no G3 command) from the called terminal in automatic sending mode for the period specified by these selectors, it disconnects the line. 5-51 G157...

  • Page 196: Wsw10 (Protocol Definition 2)

    Selectors 5 and 6: No. of training retries These selectors set the number of training retries to be repeated before automatic fallback. Selectors 7 and 8: Encoding system (Compression) This selector determines whether or not to allow the use of the MR/MMR coding system. G157 5-52...

  • Page 197: Wsw11 (Busy Tone Setting)

    If more than one selector is set to "1", the ranges become wider. For example, if selectors 4 and 5 are set to "1", the ON and OFF time length ranges are from 175 to 600 ms. 5-53 G157...

  • Page 198: Wsw12 (Signal Detection Condition Setting)

    That is, if the machine continuously detects a CI signal with the frequency set by selectors 1 through 4 on WSW14 during the period set by these selectors 5 and 6, then it acknowledges the call. G157 5-54...

  • Page 199: Wsw13 (Modem Setting)

    (1 dB in France) or higher setting only is effective. Note that in Japan and China, 9 dB or higher and 2 dB or higher settings only are effective, respectively, regardless of whether selector 8 on WSW23 is set to "0". 5-55 G157...

  • Page 200: Wsw14 (Auto Ans Facility Setting)

    32 Hz. (Even if the setting made by these selectors does not apply, it will be printed on the configuration list.) Selectors 5 through 8: No. of rings in AUTO ANS mode These selectors set the number of rings to initiate the AUTO ANS facility. G157 5-56...

  • Page 201: Wsw15 (Redial Facility Setting)

    If a command error occurs in the machine (calling station), the machine usually waits for three seconds and then makes a retry three times. This CRP option is a request command that can be sent from the called station for requesting the calling station to retry the failed command immediately. 5-57 G157...

  • Page 202: Wsw16 (Function Setting 1)

    This selector is used to select the maximum length of a document to be sent. Selector 8: Stop key pressed during reception If this selector is set to "1," pressing the Stop/Exit key can stop the current receiving operation. The received data will be lost. G157 5-58...

  • Page 203: Wsw17 (Function Setting 2)

    YY is the last two digits of the year, hh is the hour, and mm is the minute. Selector 7: Non-ring reception Setting this selector to "1" makes the machine receive calls without ringer sound if the Ring Delay is set to "0". 5-59 G157...

  • Page 204: Wsw18 (Function Setting 3)

    Selector 6: Registration of station ID Setting this selector to "0" permits the registration of station ID for Austrian and Czech models. Selectors 7 and 8: Tone sound monitoring These selectors set monitoring specifications of the tone sound inputted from the line. G157 5-60...

  • Page 205: Wsw19 (Transmission Speed Setting)

    12,000 bps to 7,200 bps) in order to deactivate the high-speed MODEM function and reduce the training time for shorter transmission time. Generally, to save the transmission time, set the last transmission speed choice to a higher one. 5-61 G157...

  • Page 206: Wsw20 (Overseas Communications Mode Setting)

    DIS. The setting made by selector 3 takes effect only when the Overseas Communications Mode is set to ON. (The setting made by selector 2 is always effective.) G157 5-62...

  • Page 207: Wsw21 (Tad Setting 1)

    Selector 8: Erasure of message stored in the memory after the message transfer Setting this selector to "0" will erase the message recorded in the memory after the document retrieval feature transfers the message. 5-63 G157...

  • Page 208: Wsw22 (Ecm And Call Waiting Caller Id)

    Selectors 5 through 8: Acceptable TCF bit error rate (%) (Not used.) Setting two or more selectors to "1" produces addition of percent assigned to each selector. If you set selectors 7 and 8 to "1," the acceptable TCF bit error rate will be G157 5-64...

  • Page 209: Wsw23 (Communications Setting)

    Setting this selector to "0" limits the transmitting level of the modem to 10 dB (1 dB in France). This setting has priority over the settings selected by WSW02 (selectors 5 through 8) and WSW13 (selectors 5 through 8). 5-65 G157...

  • Page 210: Wsw24 (Tad Setting 2)

    CML-ON up to the start of OGM transmission. Selectors 5 through 8: Attenuator for playback of ICM/OGM to the line Setting two or more selectors to "1" produces addition of attenuation assigned to each selector. This setting is not limited by selector 8 on WSW23. G157 5-66...

  • Page 211: Wsw25 (Tad Setting 3)

    NOTE: Selectors 5 through 7 are applicable to the U.S.A. models only. Selectors 5 through 7: Pause between paging number and PIN These selectors set the pause time between a telephone number being paged and PIN (personal identification number) for the paging feature. 5-67 G157...

  • Page 212: Wsw26 (Function Setting 4)

    TAD mode, via the built-in telephone in the TAD mode, or via the machine in the automatic reception of the F/T mode. G157 5-68...

  • Page 213: Wsw27 (Function Setting 5)

    6 is set to "0" (Normal). The recording quality and time determined by this selector being set to "1" (Long) are higher and shorter than the ones determined by selector 6 being set to "0" (Normal). 5-69 G157...

  • Page 214: Wsw28 (Function Setting 6)

    1 1 0: -2 dB 1 1 1: -3 dB 7, 8 Not used. Selectors 1 through 6: Transmission level of DTMF high-/low-band frequency signal These selectors are intended for the manufacturer who tests the machine for the Standard. Never access them. G157 5-70...

  • Page 215: Wsw29 (Function Setting 7)

    Selector 8: Prompt beep for activity report This selector determines whether or not to beep if the memory area for the activity report becomes full, for prompting you to print out the report. (Printing it out will clear the memory area.) 5-71 G157...

  • Page 216: Wsw30 (Function Setting 8)

    The machine stops TAD recording and disconnects the line. Selectors 8: Text copy density adjustment This function is used when a copied image of a dark document is still light even if adjusting using the contrast adjustment for the user operation. G157 5-72...

  • Page 217: Wsw31 (Function Setting 9)

    +13 when this selector is set to "1" (50 ms) or "0" (130 ms), respectively, the machine interprets the current signal as being ON. If the counter returns to zero, the machine interprets the signal as being OFF. If the Distinctive Ring is set to OFF, this selector is not effective. 5-73 G157...

  • Page 218: Wsw32 (Function Setting 10)

    These selectors set the default resolution which applies when the machine is turned on or completes a transaction. Selectors 7 and 8: Default contrast These selectors set the default contrast which applies when the machine is turned on or completes a transaction. G157 5-74...

  • Page 219: Wsw33 (Function Setting 11)

    Selectors 7 and 8: Comfortable noise level (Not used.) These selectors set the level of noise to be added during playing-back of voice signals recorded with no-signal compression. If they are set to "0, 0", no noise will be added. 5-75 G157...

  • Page 220: Wsw34 (Function Setting 12)

    TAD operation If the machine receives this specified number of DTMF tone signals during external TAD operation, it will not detect CNG afterwards. If these selectors are set to "1, 1," the CNG detection will not be inhibited. G157 5-76...

  • Page 221: Wsw35 (Function Setting 13)

    1 1 1: 28 (69 Hz) *ECP: Enhanced Capabilities Port) Selector 1: ECP mode (Not used.) The ECP mode enhances the normal bidirectional communications between the machine and the connected PC for higher transmission speed. (Continue to the next page) 5-77 G157...
  • Page 222 (until it starts automatic reception of FAX data in the FAX mode or enters the TAD mode in the TEL mode). G157 5-78...

  • Page 223: Wsw37 (Function Setting 15)

    Setting selector 2 to "1" will automatically erase the stored 1st-page image data of an unsent document at the time of the subsequent in-memory message transmission only when recording paper or toner runs out. 5-79 G157...

  • Page 224: Wsw38 (V.34 Transmission Settings)

    These selectors determine how the modem controls the EQM (Eye Quality Monitor) gain for proper choice of the transmission speed, which applies if the modem selects higher transmission speed than the possible speed so that it always repeats falling back. (Continue to the next page) G157 5-80...

  • Page 225: Wsw39 (V.34 Transmission Speed)

    (e.g., modify it from 31,200 bps to 26,400 bps) in order to deactivate the high-speed modem function and reduce the training time for shorter transmission time. WSW39 will be limited by selectors 3 through 8 on WSW40. 5-81 G157...

  • Page 226: Wsw40 (V.34 Modem Settings)

    12000 12000 12000 12000 14400 14400 14400 14400 14400 16800 16800 16800 16800 16800 19200 19200 19200 19200 19200 21600 21600 21600 21600 21600 24000 24000 24000 24000 26400 26400 26400 26400 28800 28800 28800 31200 31200 33600 G157 5-82...

  • Page 227: Wsw41 (On-Duration Of The Scanning Light Source)

    (POP3) server (Periodical or on- 0: Disable 1: Enable demand) Access to the outgoing mail 0: Disable 1: Enable (SMTP) server I-FAX relay 0: Disable 1: Enable 4–8 Not used. NOTE: WSW42 is applicable to models equipped with LAN interface. 5-83 G157...

  • Page 228: Wsw43 (Function Setting 21)

    If you set documents in the ADF and the document front sensor detects them, the controller will make correction of the reference voltage to be applied to white level compensation for document scanning before the Copy key is pressed. These selectors determine how long compensation data obtained beforehand will keep effective. G157 5-84...

  • Page 229: Wsw45 (Speeding Up Scanning-2)

    Monitoring the PC ON/OFF state (Not used.) Parallel port output pins kept at (Not used.) high level Previous filtering parameters for (Not used.) white level compensation 5–8 Not used. NOTE: Selector 4 is not applicable to models equipped with flat-bed scanners. 5-85 G157...

  • Page 230: Wsw47 (Switching Between High- And Full-Speed Usb)

    To hold the line, the machine may supply line current by making use of the pulse generator circuit that forms a parallel loop. This way the FAX line disconnection may be delayed. These selectors determine the delay period. G157 5-86...

  • Page 231: Wsw48 (Usb Setup Latency)

    1 1: 750 ms 6–8 Not used. Selectors 4 and 5: Command flag detection time After receiving a command flag, the machine will wait for the command that should follow for the time length specified by these selectors. 5-87 G157...

  • Page 232: Wsw50 (Sdaa Settings)

    NOTE: WSW50 is applicable to models equipped with SDAA circuits. WSW51 (Function setting 16) Selector Function Setting and Specifications Output of communications error report when transmission 0: Enable 1: Disable verification report is disabled 2–8 Not used. WSW52 Selector Selector Function Setting and Specifications 1–8 Not used. G157 5-88...

  • Page 233: Wsw53 (Function Setting 17)

    (spacing) in order to prevent waste recording when a paper length error is occurred while recording the fax message. When the idling mode is turned on, the recording speed is approximately half. (monochrome: 16ppm, color: 6.5ppm) WSW54-60 Selector Function Setting and Specifications 1–8 Not used. 5-89 G157...

  • Page 234: Firmware Update

    3. Connect the parallel interface cable to the parallel port on the back of the machine and secure it with the lock wires. 4. Connect the other end of the interface cable to the machine port of your PC and secure it with the two screws. G157 5-90...

  • Page 235: Setting Up The Machine And Your Pc

    8. To show the current firmware version on the LCD, hold down the " " and " " keys at the same time when the machine is in the ready condition. 9. Check if the firmware is updated correctly. 5-91 G157...

  • Page 237: Detailed Descriptions

    DETAILED DESCRIPTIONS...

  • Page 239: Overview

    7. Cleaning roller 19. Cleaning blade 8. OPC belt handle 20. Erase lamp 9. OPC Belt 21. Paper feed roller 10. Development unit K 22. Registration roller 11. Development unit Y 23. Transfer roller 12. Development unit M 24. Transfer belt G157...

  • Page 240: Adf

    7. Leading Edge Sensor Actuator 2. Feed Roller 8. Trailing Edge Sensor Actuator 3. Pick-up Roller 9. Transport Pressure Roller 2 4. ADF Motor 10. Transport Roller 5. Exit Roller 11. Transport Pressure Roller 1 6. Exit Pressure Roller G157...

  • Page 241: Paper Path

    6.1.2 PAPER PATH ADF Paper Path G157D505.WMFF G157D505.WMF Main Frame Paper Path 1. Original tray 3. Paper tray (standard) 2. Original exit tray 4. Paper tray (optional) The diagram shows the paper paths when the optional paper feed unit are installed. G157...

  • Page 242: Drive Layout

    Development motor [C] • Development clutch K [A] → Development unit K • Development clutch Y [B] → Development unit Y • Development clutch M [D] → Development unit M • Development clutch C [E] → Development unit C G157...

  • Page 243: Board Structure

    Toner End Sensor Registration Clutch OHP Sensor Paper Size Sensor Paper Feed Clutch Transfer Belt Sensor Cleaning Unit Solenoid Paper End Sensor Registration Sensor Transfer Clutch Paper Exit Sensor Development Solenoid Paper Overflow Sensor YMCK Development Unit Sensor Fusing Unit G157D501.WMF G157...

  • Page 244: Controller

    The BCU examines the power supply and the mechanical components. These include the optional paper feed unit. Power Supply Unit and High Voltage Unit The power supply unit changes alternating electrical current to direct current. The high voltage unit supplies high-voltage current. G157...

  • Page 245: Printing Process

    3) The waste-toner collection unit moves waste toner to the waste toner bottle. 5. Paper feed: The paper feed roller sends the paper from the paper tray to the registration roller. 6. Paper registration: The registration roller keeps the paper and moves it to the paper transfer roller. G157...
  • Page 246 2) The waste-toner collection unit moves waste toner to the waste toner bottle. 8. Fusing: The fusing unit fuses toner images onto the paper. 9. Paper exit: The paper exit unit sends the paper to the paper tray. G157...

  • Page 247: Scanner Mechanism

    (ADF) [C]. The scanner unit consists of a scanner top cover, CIS unit [D], CIS drive assembly [E], and scanner base [F]. The detailed illustration in section 6.1.1 shows the components of the ADF and scanner. G157...

  • Page 248: Scanning Process

    The CIS unit first moves to the white-level reference film for white level compensation. It then moves right, scanning as it goes. It returns to its home position after the scan. G157 6-10...

  • Page 249: Cis Drive Mechanism

    The CIS unit can scan color documents. When scanning a color document, the unit turns on the three-color LED lines of red, green and blue (R, G, B) alternately and illuminates the document. When scanning a black/white document, it turns on the green LED line only to scan. 6-11 G157...

  • Page 250: Toner Mass Amount Control

    1. The cyan development unit makes a rectangular image (patch) [B]. 2. This cyan image on the transfer belt [A] reflects the light from the ID sensor [C]. 3. The controller examines the signal level from this sensor, and calibrates the ID sensor. G157D907.WMFF G157 6-12...

  • Page 251: Test Pattern Processing

    The second image is weaker than the third image [M G157D911.WMFF 4. The yellow development unit changes the development bias to make three rectangular images. The first image [Y ] is weaker than the second image [Y The second image is weaker than the third image [Y 6-13 G157...

  • Page 252: Reference Equation Processing

    Development bias G157D913.WMFF 6.3.5 DEVELOPMENT BIAS ADJUSTMENT Based on the examined equations this machine adjusts the development bias of each development roller. If the machine does not make a linear equation, the default voltage goes to the development roller. G157 6-14...

  • Page 253: Optical Housing Unit

    6. The second mirror [H] reflects the laser beam. 7. The barrel toroidal lens [F] focuses the laser beam on the third mirror. 8. The third mirror [A] reflects the laser beam. 9. The fourth mirror [C] reflects the laser beam. 6-15 G157...

  • Page 254: Laser Synchronization

    The table lists some specifications of the optical housing unit. Rated output of laser diode 5 mW Laser beam wavelength Approx. 785 nm Scanning resolution 600 dpi Scanning width 314 mm Number of rotations of polygon mirror (per minute) 35,904 rpm Polygon mirror faces G157 6-16...

  • Page 255: Optics Unit Fan

    NOTE: The optics unit fans is necessary to decrease the temperature inside the machine. G157D916.WMFF 6.4.5 LASER EXPOSURE The optical housing unit [A] emits the laser beam and writes latent images on the OPC belt [B]. G157D917.WMFF 6-17 G157...

  • Page 256: Safety Switch

    On the other hand, the lever on the rear cover [F] is not attached to a safety switch. The copier can operate even when you pull the lever (if the rear cover stays closed). NOTE: The center cover does not have such a lever. G157 6-18...

  • Page 257: Opc Belt

    (waste toner) goes into the waste toner duct [F]. The waste toner feeder [D] moves waste toner to the right end of the waste toner duct. At this time waste toner goes into the waste-toner collection unit. G157D921.WMFF 6-19 G157...

  • Page 258: Charge Roller And Cleaning Roller

    The high voltage unit (HVU) gives electrical power to the charge roller and the cleaning roller. The left end of the charge roller is attached to BRV [B] on the HVU. The left end of the cleaning roller is attached to CLV [A] on the HVU. G157 6-20...

  • Page 259: Opc Belt Sensor

    The erase lamp [A] is below the contact point of the OPC belt and the transfer belt. The erase lamp quenches the electrical charge on the OPC belt. The cable on the erase lamp connects with MCN8 on the BCU. G157D924.WMFF 6-21 G157...

  • Page 260: Development Unit

    When you set a development unit in the copier, the plate on the front left corner of the development unit pushes the feeler. The left end of the feeler (interrupter) moves out of the development unit sensor. G157D926.WMFF G157 6-22...

  • Page 261: Drive

    The development drive gear has two functions. First, the drive gear drives the development roller ( 6.6.1). Second, the drive gear moves the right side of each development unit [D] to the OPC belt. NOTE: For the contact mechanism on the left side, (see section 6.6.4) 6-23 G157...

  • Page 262: Development Unit Contact Mechanism

    [G]. 3. The spring clutch [H] stops when the leftmost gear stops. But the toner return gear [I] keeps on turning. 4. The development unit moves toward the OPC belt. 5. The development unit contacts the OPC belt. G157 6-24...

  • Page 263: Spring Clutch

    The development unit K [A] and the development unit Y [B] are attached to DBVKY [E] on the HVU. The development unit M [C] and the development unit C [D] are attached to DBVMC [F] on the HVU. 6-25 G157...

  • Page 264: Toner End Sensor

    The machine stops all print jobs when the K development unit gets empty. NOTE: The number (250 images) is calculated under these conditions: • A4/LT size • two pages per job • 50% color ratio • 5% coverage. G157 6-26...

  • Page 265: Transfer Belt

    TRANSFER BELT 6.7 TRANSFER BELT 6.7.1 DRIVE G157D934.WMFF The OPC belt [A] and the transfer belt [B] are in contact with each other. The transfer belt turns with the OPC belt when the main motor drives the OPC belt. 6-27 G157...

  • Page 266: Transfer Belt Sensor And Id Sensor

    The machine has a reflective photosensor-the ID sensor [C]-below the right side of the transfer belt. The ID sensor emits light to the transfer belt and accepts its reflection. The controller examines the signals from the ID sensor to adjust the image density. G157 6-28...

  • Page 267: Id Sensor Cleaning

    Mylar [A]. The cleaning Mylar is mechanically attached to the lever [B] above the right rail of the paper tray. Each time you push the paper tray into the copier or pull it out of the copier, the cleaning Mylar cleans the surface of the protection Mylar. 6-29 G157...

  • Page 268: Transfer Belt Cleaning

    At this time, the toner goes into the waste-toner collection unit. Drive The main motor drives the right side gear of the cleaning roller via idle gears. The left side gear of the cleaning roller sends this drive power to the cleaning brush and the waste toner feeder. G157 6-30...

  • Page 269: Contact-Release Mechanism

    In this position, the cam stays in its lower position [e] and does not push up the cleaning unit release pin [d]. As a result, the cleaning unit stays in contact with the transfer belt. 6-31 G157...

  • Page 270: Waste Toner Agitator

    The waste toner agitator moves along the vertical waste toner path when the gear-shaft turns The waste toner agitator agitates the waste toner in the vertical waste toner path. This ensures that the waste toner does not cause a blockage in the toner path. G157 6-32...

  • Page 271: Waste-Toner Collection Unit

    The drive power is sent to the collection coil via the gears [E] on the left end of the unit. NOTE: The gear [F] on the right end also sends the drive power to the OPC-belt charge roller ( 6.5.1). 6-33 G157...

  • Page 272: Waste Toner Sensor

    When the waste toner bottle becomes almost full, the machine shows the message "Waste Toner is Almost Full”. The machine can make 200 developments after this message shows. The machine will not print until the waste toner bottle is replaced after it has made 200 developments. G157 6-34...

  • Page 273: Paper Tray Unit

    PAPER TRAY UNIT 6.8 PAPER TRAY UNIT 6.8.1 OVERVIEW G157D941.WMFF 1. Transfer Roller 4. Friction Pad 2. Registration Roller 5. Paper tray 3. Paper Feed Roller 6-35 G157...

  • Page 274: Paper Lift

    When you pull the paper tray out of the copier, the triangular rails [D] on both sides push the levers [B]. The bottom plate is gradually pushed down when you pull the paper tray. At this time, the bottom plate is at its lowermost position. The hooks [C] hold the bottom plate. G157 6-36...

  • Page 275: Paper Feed

    The friction pad [B] prevents the sheet below the topmost from being fed. Drive The main motor drives the paper feed clutch ( 6.1.3). The paper feed clutch sends the drive power to the paper feed roller when it is on. 6-37 G157...

  • Page 276: Paper Size And Paper Tray Detection

    Not interrupted Interrupted DL/#10 Interrupted Not interrupted Not interrupted Interrupted Not interrupted Interrupted Not interrupted Interrupted Executive Interrupted Not interrupted Interrupted Interrupted Letter Interrupted Interrupted Not interrupted Interrupted Not interrupted Not interrupted Interrupted Interrupted Legal* * Optional legal-size tray G157 6-38...

  • Page 277: Ohp Sensor

    (PFU) does not have an OHP G157D945.WMFF sensor. The PFU cannot feed OHP sheets. Configuration Page and Utilities The Configuration Page (User function menu > 55: User Settings) shows the user settings. The utility software programs do not reference the OHP sensor. 6-39 G157...

  • Page 278: Ohp Sensor, User Setting, And Printer Driver

    Processed as Remarks No inconsistency Glossy Glossy Step 2 Not OHP • Simplex: OHP Step 3 • Duplex: Glossy Not OHP Not OHP Step 1 Not OHP Glossy Glossy No inconsistency Not OHP Not OHP Not OHP No inconsistency G157 6-40...

  • Page 279: Paper End Sensor

    [B]. The feeler does not interrupt the paper end sensor. When the paper is not in the tray, the bottom end of the feeler goes into the opening [C] of the paper-tray base. The feeler interrupts the paper end sensor. 6-41 G157...

  • Page 280: Paper Registration And Paper Transfer

    The interrupter interrupts the registration sensor [C] on the rear left corner of the copier. When the paper reaches the registration roller, the paper pushes the paper feeler. The left end of the feeler (interrupter) moves out of the registration sensor. G157 6-42...

  • Page 281: Paper Transfer

    [A] to the rear or where it does not push the transfer roller lever at all. As a result, the transfer roller comes in contact with the paper (during paper transfer), or stays away from the transfer belt. G157D949.WMFF 6-43 G157...

  • Page 282: Fusing Unit

    FUSING UNIT 6.10 FUSING UNIT 6.10.1 OVERVIEW G157D950.WMFF 1. Pressure Roller 6. Tension Bolt 2. Pressure-Roller Sheet 7. Hot Roller 3. Tension Arm 8. Fusing Thermostat 4. Fusing Lamp 9. Fusing Thermistor 5. Tension Lever G157 6-44...

  • Page 283: Drive

    6.10.4 FUSING PROCESS The hot roller and the pressure roller are approximately 150°C (302°F) during the fusing process. The pressure between these two rollers is approximately 300 N. 6-45 G157...

  • Page 284: Temperature Control

    The two fusing thermostats are on the same electrical circuit as the fusing lamp. The fusing lamp goes off if one of the two fusing thermostats breaks the electrical circuit ( ). The two electrical circuits, circuit and circuit are not the same circuits. G157 6-46...

  • Page 285: Temperature

    The copier will not print. • TPS: The fusing thermostats break the electrical circuit to the fusing lamp. The copier will not print. Energy Saver Mode When the copier is in the energy saver mode, the fusing lamp is off. 6-47 G157...

  • Page 286: Paper Exit Unit

    [A] on the left end of the paper exit unit. The paper stack on the paper tray can become high enough to keep pushing the paper feeler. In a condition like this, the left end of the feeler (interrupter) stays out of the paper overflow sensor. G157 6-48...

  • Page 287: Controller

    G157D510.WMFF 1. Optional RAM slot 7. ASIC (VALKYRIE) 2. SDRAM (32 MB) x 2 8. Ethernet I/F 3. BCU I/F 9. USB 2.0 port 4. EEPROM 10. IEEE1284 5. LSI 11. ASIC (PEGASUS) 6. ASIC (TAURUS) 12. DRAM 6-49 G157...

  • Page 288: Black Over Print

    [C]. 2. The black toner [D] is put on the color toner. Even if the line position of the black toner is not correct, an unexpected white line does not show. G157D957.WMFF G157 6-50...

  • Page 289: Usb 2.0

    6.13.2 REMARKS The machine does not generate any report that is dedicated to the USB operations. When you have replaced the controller, the host computer (of the machine) does not recognize the copier as the same peripheral device. 6-51 G157...

  • Page 291: Specifications

    SPECIFICATIONS...

  • Page 293: General Specifications

    Optional Legal-size cassette: 60 - 210 g/m ADF: Capacity: 35 sheets (80g/m /20lb) Original Width: 142 - 216 mm (5.8"-8.5") Original Length: 148 - 356 mm (5.8"-14") Original Weight: Multi page 64 - 90g/m2 (17-24lbs.) Single page 52 - 90g/m2 (14-24lbs.) G157...
  • Page 294 Controller: 600 x 600 dpi, 1200 x 600 dpi Language: Operation panel drivers: NA; English, French EU; English, German, French, Italian, Spanish, Portuguese, Dutch, Swedish, Norwegian, Danish Asia/Oceania; English Drivers: English, German, French, Italian, Spanish, Portuguese, Dutch, Swedish, Norwegian, Danish G157...

  • Page 295: Copier

    Fix: 50, 70, 78, 83, 85, 91, 94, 97, 104, 141, 200% Enlargement: Custom: 25 - 400% in 1%/step Image density adjustment: Copy mode: Auto/ Text/ Photo Memory copy: Interrupt copy: Combine copy: 2 in one, 4 in one, Poster G157...

  • Page 296: Fax

    Automatic redial: 1 time after 5 minutes Auto answer: 0, 1, 2, 3 or 4 rings Communication Public switched telephone network source: Memory Up to 400 pages transmission: Out of paper Up to 400 pages reception: PC Fax utility: G157...

  • Page 297: Printer

    ADF: Width 142 - 216 mm (5.8" - 8.5") Length 148 - 356 mm (5.8" - 14") Scanning width: Max. 8.5" (216 mm) Gray scale: 256 levels Scanner utilities & TWAIN Driver, Scanner utility (Control Center), Image viewer Drivers: (Paper Port 9.0SE), OCR S/W (OmniPage OCR) G157...

  • Page 298: Supported Paper Sizes

    North America (Menu > Paper Input > Tray 1/2 Paper Size). Europe The paper size is not detected; but the paper SEF: Short edge feed can be used. LEF: Long edge feed –: The paper size is not usable. G157...

  • Page 299: Software Accessories

    9.0SE is a document management application for viewing scanned ® documents. ScanSoft OmniPage ,which is integrated into PaperPort 9.0SE,is an OCR ® ® ® application that converts an image into text and inserts it into your default word processor. G157...

  • Page 300: Machine Configuration

    SPECIFICATIONS 4. MACHINE CONFIGURATION G157V901.WMFF Unit M'Code Diagram Remarks G157 Paper feed unit G389 Legal paper tray G391 For North America model only G157...

  • Page 301: Optional Equipment

    A4, B5, A5, Letter, Legal, HLT, Executive, Free size 60 ∼ 210 g/m Print Paper Weight: (16 - 55lb) Tray Capacity: 250 sheets Dimensions (W x D x H): 276 mm x 408 mm x 55 mm (10.9" x 16.1" x 2.2") Weight: 1.1 kg (2.5lb) G157...
  • Page 303 G389 PAPER TRAY UNIT TYPE 1000...

  • Page 305: Paper Tray Unit G389

    PAPER TRAY UNIT G389 TABLE OF CONTENTS 1. REPLACEMENT AND ADJUSTMENT..........1 1.1 EXTERIOR COVER ..................1 1.1.1 TOP COVER AND SENSOR COVER ..........1 1.1.2 BOTTOM BASE AND REAR COVER..........2 1.1.3 RIGHT COVER..................3 1.1.4 LEFT COVER ..................3 1.2 FEED ROLLER AND SEPARATOR PAD.............

  • Page 307: Replacement And Adjustment

    EXTERIOR COVER 1. REPLACEMENT AND ADJUSTMENT  CAUTION Turn off the main switch and disconnect all cabling, including the A.C. from the printer before removing any parts. Keys:  : Screw  : Connector : See or refer to  : Clip ring ...

  • Page 308: Bottom Base And Rear Cover

    EXTERIOR COVER 1.1.2 BOTTOM BASE AND REAR COVER 1. Remove the printer from the paper tray unit. 2. Tray 3. Three screws on the bottom base [A] NOTE: Do not remove the stud shafts [C] at this time. If you remove the stud shafts, the bottom base becomes loose.

  • Page 309: Right Cover

    EXTERIOR COVER 8. Bottom base [A] 9. Rear cover [B] ( x 2) G389R912.WMF 1.1.3 RIGHT COVER 1. Rear cover ( 1.1.2) 2. Right cover [A] ( x 2) G389R913.WMF 1.1.4 LEFT COVER 1. Rear cover ( 1.1.2) 2. Left cover [A] ( x 2) G389R914.WMF G389...

  • Page 310: Feed Roller And Separator Pad

    FEED ROLLER AND SEPARATOR PAD 1.2 FEED ROLLER AND SEPARATOR PAD 1.2.1 FEED ROLLER 1. Remove the tray 2. Gear [A] ( x 1) 3. Bushing [B] ( x 1) 4. Bushing [C] ( x 1) 5. Feed roller (with the shaft) G389R915.WMF 6.

  • Page 311: Separator Pad

    SENSOR 1.2.2 SEPARATOR PAD 1. Feed roller (with the shaft) 1.2.1) 2. Separator pad [A] Necessary Setting After replacing the feed roller, execute SP7-905-006 (PM Parts Clear, Pick Up Roller 2). G389R917.WMF 1.3 SENSOR 1.3.1 PAPER END SENSOR 1. Sensor cover ( 1.1) 2.

  • Page 312: Paper End Feeler And Link Lever

    SENSOR 1.3.2 PAPER END FEELER AND LINK LEVER 1. Sensor cover ( 1.1) 2. Tray 3. Stopper [A] 4. Link lever [B] 5. Paper end feeler [C] G389R918.WMF Reassembling 1. Attach the link lever. 2. Attach the stopper. 3. Close the tray. 4.

  • Page 313: Paper Size Sensor

    SENSOR 1.3.3 PAPER SIZE SENSOR 1. Tray [A] G389R904.WMF 2. Sensor cover (with the sensor) [B] ( x 1) G389R905.WMF G389...

  • Page 314: Paper Feed Clutch

    PAPER FEED CLUTCH 3. Paper size sensor [A] ( x 2,  x 2) G389R906.WMF 1.4 PAPER FEED CLUTCH 1. Top cover ( 1.1) 2. Clutch assembly [A] ( x 1,  x G389R907.WMF G389...
  • Page 315 RELAY GEARS 3. Bushing [A] ( x 1) 4. Gear [B] (Clip x 1) 5. Bushing [C] 6. Clutch shaft [D] (Clip x 2) 7. Paper feed clutch [E] G389R908.WMF 1.5 RELAY GEARS 1. Clutch assembly ( 1.4) 2. Relay gears [A] ( x 2) Reassembling Make sure that you attach the spring [B] to the relay gear bracket and the clutch...

  • Page 316: Detailed Descriptions

    PAPER SIZE AND PAPER TRAY DETECTION 2. DETAILED DESCRIPTIONS 2.1 PAPER SIZE AND PAPER TRAY DETECTION G389D901.WMF A printed circuit board [B] located at the far end of the right paper tray rail is comprised of four photosensors. Three photosensors on the front side [E][F][G] are the paper size sensors.

  • Page 317: Paper Lift

    PAPER LIFT 2.2 PAPER LIFT G389D902.WMF A compression type spring [H] and a white retaining bar [I] are located below the bottom plate [G]. The white retaining bar is comprised of a spring [A] and two hooks [D]. These hooks hold the bottom plate down. The white retaining bar moves from side-to-side.

  • Page 318: Paper Feed

    PAPER FEED 2.3 PAPER FEED G389D903.WMF The paper tray unit does not require a motor. The main motor of the printer drives the topmost gear [A] in the clutch assembly [D]. The clutch [B], when energized, transfers drive power to the paper feed roller [C]. The paper feed roller will then turn, driving the uppermost sheet of paper out of the tray.

  • Page 319: Paper End Detection

    PAPER END DETECTION 2.4 PAPER END DETECTION 2.4.1 PAPER END SENSOR A paper end sensor [A] and a feeler [C] are located on the top cover [D]. The feeler rests on the topmost sheet of paper in the paper tray. When the paper tray is empty, the feeler falls into the opening [E] in the paper tray’s bottom plate.

  • Page 320: Link Lever

    PAPER END DETECTION 2.4.2 LINK LEVER [C] [D] Function A link lever is located on the top cover. The link lever lifts the feeler of the paper end sensor up towards the paper tray unit’s top cover when the paper tray is removed from the paper tray unit.

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