Ricoh C275 Service Manual
  1. Manuals
  2. Brands
  3. Ricoh Manuals
  4. All in One Printer
  5. C275
  6. Service manual

Ricoh C275 Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
C275
SERVICE MANUAL
005648MIU

Advertisement

Table of Contents
loading

Related Manuals for Ricoh C275

Summary of Contents for Ricoh C275

  • Page 1 C275 SERVICE MANUAL 005648MIU...
  • Page 5 C275 SERVICE MANUAL 005648MIU...
  • 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 Americas Corporation and its member companies. NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FASHION AND DISTRIBUTED WITHOUT THE PRIOR PERMISSION OF RICOH AMERICAS CORPORATION.
  • Page 9 Ricoh Technical Training Program. Untrained uncertified users utilizing information contained in this service manual to repair or modify Ricoh equipment risk personal injury, damage to property or loss of warranty protection. Ricoh Americas Corporation...
  • Page 11 LEGEND PRODUCT COMPANY CODE GESTETNER LANIER RICOH SAVIN C275 (USA) LDD130 DX 3343 3183DNP DX 3343/ C275 (LAD) DX 3443 DX 3443 DOCUMENTATION HISTORY REV. NO. DATE COMMENTS 02/2010 Original Printing...

  • Page 13: Table Of Contents

    C275 TABLE OF CONTENTS PRODUCT INFORMATION PRODUCT INFORMATION ............1-1     SPECIFICATIONS ..................1-1     GUIDANCE FOR THOSE WHO ARE FAMILIAR WITH PREDECESSOR   PRODUCTS ..................... 1-2   OVERVIEW ....................1-4     1.3.1 MECHANICAL COMPONENT LAYOUT ........... 1-4  ...
  • Page 14 Accessory Check ................2-23   Installation Procedure ................. 2-24   2.2.7 PRINTER UNIT TYPE 4545A (OPTION) ........2-25     Components Check ................2-25   Installation Procedure ................. 2-26 PREVENTIVE MAINTENANCE PREVENTIVE MAINTENANCE ............3-1     MAINTENANCE TABLES ................3-1   C275...
  • Page 15 LENS BLOCK ................. 4-12     4.6.3 EXPOSURE LAMP AND LAMP STABILIZER BOARD ....4-13     4.6.4 SCANNER MOTOR ................ 4-14     4.6.5 SCANNER HOME POSITION SENSOR......... 4-15     4.6.6 PLATEN COVER SENSOR ............4-16     C275...
  • Page 16 PAPER HEIGHT SENSOR 1 AND 2 ..........4-39     4.9.4 PAPER END SENSOR ..............4-40     4.9.5 PAPER TABLE MOTOR ..............4-41     4.9.6 PAPER FEED CLUTCH ..............4-41     4.9.7 PAPER SEPARATION PRESSURE ADJUSTMENT ...... 4-42     C275...
  • Page 17 4.13 MAIN DRIVE ..................4-72 4.13.1 REGISTRATION MOTOR ............4-72 4.13.2 MAIN MOTOR................4-74 4.13.3 MAIN DRIVE TIMING BELT ADJUSTMENT ......4-75 4.13.4 MAIN MOTOR PULLEY POSITION ..........4-76 4.14 MODIFICATION OF COLOR DRUM INTO BLACK DRUM ....4-77 C275...
  • Page 18   7.2.1 EFFECTIVENESS OF THE COMBINE FUNCTION ......7-3     Combine mode: ..................7-3   Recommendation ................. 7-3   275 ....................... 7-3   C275 SERVICE MANUAL APPENDICES SEE C275 SERVICE MANUAL APPENDICES SECTION FOR DETAILED TABLE OF CONTENTS C275...

  • Page 19: Product Information

    PRODUCT INFORMATION APPENDIX: SPECIFICATIONS INSTALLATION APPENDIX: PREVENTIVE MAINTENANCE PREVENTIVE MAINTENANCE APPENDIX: SERVICE CALL CONDITIONS REPLACEMENT AND ADJUSTMENT APPENDIX: ELECTRICAL COMPONENT DEFECTS SYSTEM MAINTENANCE REFERENCE APPENDIX: DIP SW, LED, VR, TP AND FUSE TABLES TROUBLESHOOTING APPENDIX: SERVICE PROGRAM MODE TABLES ENERGY SAVING...

  • Page 21: Read This First

    Read This First Important Safety Notices Responsibilities of the Customer Engineer Customer Engineer Maintenance shall be done only by trained customer engineers who have completed service training for the machine and all optional devices designed for use with the machine. Reference Material for Maintenance Maintenance shall be done using the special tools and procedures prescribed for maintenance of the machine described in the reference materials (service manuals,...
  • Page 22 Power Always disconnect the power plug before doing any maintenance procedure. After switching off the machine, power is still supplied to the main machine and other devices. To prevent electrical shock, switch the machine off, wait for a few seconds, then unplug the machine from the power source.

  • Page 23: During Maintenance

    During Maintenance General Before you begin a maintenance procedure: 1) Switch the machine off 2) Disconnect the power plug from the power source. Safety Devices Never remove any safety device unless it requires replacement. Always replace safety devices immediately. Never do any procedure that defeats the function of any safety device. Modification or removal of a safety device (fuse, switch, etc.) could lead to a fire and personal injury.
  • Page 24 Power Plug and Power Cord Before serving the machine (especially when responding to a service call), always make sure that the power plug has been inserted completely into the power source. A partially inserted plug could lead to heat generation (due to a power surge caused by high resistance) and cause a fire or other problems.
  • Page 25 After Installation, Servicing Points to Confirm with Operators At the end of installation or a service call, instruct the user about use of the machine. Emphasize the following points. Show operators how to remove jammed paper and troubleshoot other minor problems by following the procedures described in the operating instructions.
  • Page 26 Health Safety Conditions If you get ink in your eyes by accident, try to remove it with eye drops or flush with water as first aid. If unsuccessful, get medical attention. If you ingest ink by accident, induce vomiting by sticking a finger down your throat or by giving soapy or strong salty water to drink.

  • Page 27: Product Information

    PRODUCT INFORMATION R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew None...

  • Page 29: Specifications

    Specifications 1. PRODUCT INFORMATION 1.1 SPECIFICATIONS See "Appendices" for the "General Specifications": C275...

  • Page 30: Guidance For Those Who Are Familiar With Predecessor Products

    1.2 GUIDANCE FOR THOSE WHO ARE FAMILIAR WITH PREDECESSOR PRODUCTS Machine C275 is a successor model to Machine C267/C271. If you have experience with the predecessor products, the following information will be of help when you read this manual. Different Points from Predecessor Products...
  • Page 31 Guidance for Those Who are Familiar with Predecessor Products Item C267/C271 C275 Sound Power Level Sound Power Level Standby: 36 dB Standby: 34 dB Copying 80 cpm: 78 dB Copying 80 cpm: 78 dB Copying 100 cpm: 80 dB Copying 100 cpm: 80 dB...

  • Page 32: Overview

    24. 1st Transport Roller 10. Doctor Roller 25. Separation Roller 11. Press Roller 26. Original Feed Belt 12. Ink Roller 27. Pick-up Roller 13. Vacuum Fan Motor 28. 2nd Transport Roller 14. Exit Pawl 29. Original Exit Roller 15. Transport Belts C275...

  • Page 33: Electrical Component Layout

    Overview 1.3.2 ELECTRICAL COMPONENT LAYOUT C275...

  • Page 34: Boards

    Master Eject Motor Sends used masters into the master eject box. Air Knife Fan Rotates the fan to provide air to separate the leading Motor edge of the paper from the drum. Vacuum Fan Provides suction so that paper is held firmly on the Motor transport belt. C275...

  • Page 35: Solenoids

    Original Feed Stepper motor drives the book scanner. Motor Solenoids Index No. Name Function Front Pressure Releases the press roller to apply printing pressure. Release Solenoid Rear Pressure Releases the press roller to apply printing pressure. Release Solenoid C275...

  • Page 36: Switches

    Sensor 1 position. Paper Height Detects when the paper table reaches the paper feed Sensor 2 position. Paper End Sensor Informs the CPU when the paper table runs out of paper. Paper Registration Detects paper approaching the registration roller. Sensor C275...
  • Page 37 Determines the paper feed start timing. Sensor Master Eject Detects when the drum is at the master eject position Position Sensor (this is the home position) Pressure Plate Detects if the pressure plate is at the home position. Home Position Sensor C275...

  • Page 38: Others

    Others Index No. Name Function Thermal Head Burns the image onto the master. Xenon Lamp Applies light to the original for exposure. Transmits main motor drive to the paper feed roller at Paper Feed Clutch the appropriate time. C275 1-10...

  • Page 39: Drive Layout

    1.3.3 DRIVE LAYOUT 1. Master Eject Motor 6. Registration Motor 2. Pressure Plate Motor 7. Paper Feed Clutch 3. Clamper Motor 8. Master Feed Motor 4. Paper Delivery Motor 9. Scanner Motor 5. Main Motor 10. Original Feed Motor 1-11 C275...

  • Page 41: Installation

    INSTALLATION R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew None...

  • Page 43: Installation Requirements

    Make sure that the wall outlet is near the machine and easily accessible. Make sure the plug is firmly inserted in the outlet. Avoid multi-wiring Do not pinch the power cord. 2.1.4 MINIMUM SPACE REQUIREMENTS Place the machine near a power source, providing minimum clearance as shown below. C275...

  • Page 44: Dimensions

    Installation Requirements 2.1.5 DIMENSIONS C275...

  • Page 45: Main Body And Peripherals

    Installation Requirements 2.1.6 MAIN BODY AND PERIPHERALS This is a list of the peripheral devices that can be installed with the digital duplicator. Model Name Comments C275 Digital duplicator Main Machine C642 Auto document feeder B406 Platen cover C643/C647/C648 Color drum Optional drum –...

  • Page 46: Power Sockets For Peripherals

    Installation Requirements 2.1.7 POWER SOCKETS FOR PERIPHERALS CAUTION Rating Voltage for Peripherals Make sure to plug the cables into the correct sockets. C275...

  • Page 47: Installation Procedure

    Emblem Cover (C275-80, -83, -92, -93) Emblem – Ricoh DX 3440 (C275-80) Emblem – Gestetner DX 3440 (C275-80) Warranty Letter on carton box (C275-76, -78) Leaflet (C275-76, -78) Operating Instructions (C275-61, -76, -78, -80, -92) Easy Operation Guide (C275-61, -76, -78, -80, -92) C275...

  • Page 48: Installation Procedure

    Installation Procedure Description Quantity German Acoustic Statement – Ricoh (C275-83, -93) German Acoustic Statement – Gestetner (C275-83, -93) Bundled Items List (C275-76, -78) NECR (C275-80, -92) Installation Procedure To avoid serious injury, do not connect the power plug to the machine until you are instructed to do so.
  • Page 49 Mount the machine on the table. There are two screws [A] packed with the table. Lock the caster [B] Fix the caster lock stays [C] and tighten the screws [D] (NON-USA MODEL) Attach the stabilizing brackets [E] (these help to prevent the machine from falling over). (NON-USA MODEL) C275...
  • Page 50 Installation Procedure Remove the filament tape as shown above. C275...
  • Page 51 Remove the string securing the covers and units as shown above. Open the paper table. Pull out the master making unit, and take out the accessory bag [A]. Remove the filament tape and string securing the covers and units. Insert both spools into a new master roll. C275...
  • Page 52 Installation Procedure Install the master roll, and open the master making unit cover. 10. Insert the leading edge of the master roll under the platen roller. The arrows [B] indicate the correct position of the master leading edge. C275 2-10...
  • Page 53 14. Release the ink holder lock lever [E] and pull out the ink holder [F]. 15. Remove the cap of the new ink cartridge, and insert a new ink cartridge into the ink holder. 16. Set the ink holder [F]. 2-11 C275...
  • Page 54 [I] can be installed to apply stopping pressure to the paper. 20. Raise the paper delivery table slightly, then gently lower it. 21. Lift the side plates and the end plate, and attach the side plate guides [J] for both side plates. C275 2-12...

  • Page 55: Changing The Operation Panel Language

    Enter the date and the time. SP Codes Setting SP No. Menu Function SP3-2 Input TEL number Do this SP and input the contact numbers of the customer engineer. These numbers are shown when a service call is issued. 2-13 C275...

  • Page 56: Color Drum (Option)

    Keep the removed drum in the drum case. Install the color drum in the machine. The color drum indicator on the operation panel stays lit when a drum is mounted in the machine. Remove the ink cartridge cap. C275 2-14...
  • Page 57 Check the quantity and condition of the accessories in the box against this list: Description Quantity Stepped Screw Screws Screwdriver Tool DF Exposure Glass Decal - Scale - mm Decal - Scale - inch Scale Guide Attention Label 2-15 C275...
  • Page 58 When installing the DF exposure glass, make sure that the white dot [C] is positioned at the front side facing down, as shown. Peel off the backing [D] of the double-sided tape attached to the rear side of the scale C275 2-16...
  • Page 59 DF to the front as shown. Secure the DF unit with two screws [H]. Connect the cables [I] to the main body. Attach the scale decal [J] as shown. 10. Connect the power cord, then turn the main switch on. 2-17 C275...

  • Page 60: Accessory Check

    Check the quantity and condition of the accessories in the box against this list: Description Quantity Stepped Screw Installation Procedure To avoid serious injury, do not connect the power plug to the machine until you are instructed to do so. Install the platen cover [A] ( x 2). C275 2-18...

  • Page 61: Tape Dispenser (Option)

    Auxiliary Bracket (For C226 and C267, C271) Auxiliary Bracket (For C238, C247 and C249) Auxiliary Bracket (For C264) Screw M4 x 8 (For C226, C238, C247, C249 and C267, C271) Lock Washer (For C226 only) Lock Washer (Without C267, C271) Tape 2-19 C275...

  • Page 62: Installation Procedure

    Remove the cutout [A] from the rear cover, as shown. Connect the harness from the tape dispenser to the connector [B]. Remove the screw [C] that is beside the connector [B]. Reuse the screw to secure the bracket [D], as shown. C275 2-20...
  • Page 63 10. Open the tape dispenser cover [H]. Then, insert the leading edge of the tape into the tape entrance until it stops as shown in the illustration [I]. Be sure that the tape is installed in the proper direction. If it is not, the tape dispenser will not work correctly. 2-21 C275...
  • Page 64 13. Turn on the tape dispenser switch [J]. 14. Press the tape cut button [K] to cut off the leading edge of the tape. 15. Check the tape dispenser operation using the Memory/Class modes of the main body. C275 2-22...

  • Page 65: Printer Unit Vc-20 (Option)

    Installation Procedure 2.2.6 PRINTER UNIT VC-20 (OPTION) Accessory Check Make sure that you have all the accessories listed below. Description Quantity VC-20 Interface Board Screws Installation CD Quick Install Guide Safety Information 2-23 C275...

  • Page 66: Installation Procedure

    Remove the small rear cover [A] in the rear cover. ( x 2) Cut out the USB port cover [B] in the small rear cover. Connect the VC-20 interface board [C] to CN114 of the MPU board and secure it using three screws. Reinstall the small rear cover. C275 2-24...

  • Page 67: Printer Unit Type 4545A (Option)

    Installation Procedure 2.2.7 PRINTER UNIT TYPE 4545A (OPTION) Components Check Description Quantity ACU Board (with Case) Top Right Bracket Bottom Bracket Top Left Bracket Short Harness Long Harness Ground Cable Cover Ferrite Core 2-25 C275...

  • Page 68: Installation Procedure

    Check whether the "mm/inch" setting in the User Tools (System - mm/inch) is set to the correct value. If necessary, change it to the correct "mm/inch" setting. Check whether "SP2-7" (Vendor Selection) is set to the correct value. If necessary, change it to the correct vendor setting. C275 2-26...
  • Page 69 Attach the controller [C] to the main machine ( (blue) x 3). Attach the ground cable [E] ( x 2). Reinstall the rear cover. After installing the printer unit, make sure that the board and cable are securely connected. 2-27 C275...

  • Page 71: Preventive Maintenance

    PREVENTIVE MAINTENANCE R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew None...

  • Page 73: Maintenance Tables

    Maintenance Tables 3. PREVENTIVE MAINTENANCE 3.1 MAINTENANCE TABLES See "Appendices" for the "Maintenance Tables". C275...

  • Page 75: Replacement And Adjustment

    REPLACEMENT AND ADJUSTMENT R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew 77 ~ 79 12/15/2010 Added Modification of Color Drum into Black Drum...

  • Page 77: General Caution

    General Caution 4. REPLACEMENT AND ADJUSTMENT 4.1 GENERAL CAUTION Turn off the main power switch and unplug the machine before attempting any of the procedures in this section. C275...

  • Page 78: Special Tools

    The followings are the special tools used for service. Description Part number Note Scanner positioning pins A0069104 p.4-17 (4 pins as a set) Flash memory card – 4MB N8036701 "8. System Test" in the Appendices Alvamoa 2 (Alvania) Grease A0699502 C275...

  • Page 79: Image Adjustment

    Example: If the value is 133, {(130 - 133) / 130} x 100 = - 2.3 % Access SP6-10, input the calculated ratio, and press the Enter key. Repeat the procedure to make sure that the ratio is correct. C275...

  • Page 80: Sp6-21: Paper Regist Position

    If it is not, access SP6-03, input the gap value and press the Enter key. Example: If the value is 7 mm, 7 - 8 = -1.0 Repeat the procedure to make sure that the gap is correct. Make copies of the test pattern in ADF mode and repeat the process using SP6-04. C275...

  • Page 81: Sp6-1: Main Scan Position - Platen And Sp6-2: Main Scan Position - Adf

    Access SP6-01, input the gap value and press the Enter key. (If you input a positive value, the image moves towards the operation side.) Repeat the procedure to make sure that there is no difference. Make a copy in ADF mode and repeat the process using SP6-02. C275...

  • Page 82: Covers

    Covers 4.4 COVERS 4.4.1 FRONT COVER AND FRONT DOOR [A]: Front cover ( x 9) [B] Front door ( x 4) C275...

  • Page 83: Operation Panel

    Covers 4.4.2 OPERATION PANEL Front cover ( p.4-6 "Front Cover and Front Door") [A]: Operation panel ( x 5, x 2, x 3) 4.4.3 REAR COVER [A]: Rear cover ( x 9) C275...

  • Page 84: Upper Covers

    Covers 4.4.4 UPPER COVERS [A]: Left upper cover ( x 2) [B]: Top rear cover ( x 1) [C]: Right upper cover ( x 1) C275...

  • Page 85: Boards

    MPU. Adjust the ink detection ( p.4-61) after installing the new MPU. If you must replace the MPU RAM, you must then do the image adjustments after you install the new RAM ( p.4-3). C275...

  • Page 86: Psu

    PSU ( x 6, x 7) The split washer screw [B] is used for grounding. Do not use another type of screw here. PSU Board with Bracket Rear cover ( p.4-7) [A]: PSU ( x 5, x 7) C275 4-10...

  • Page 87: Scanner

    When reinstalling, make sure that the mark [E] is at the rear left corner, and that the left edge is aligned with the support on the frame. DF Exposure Glass [A]: Left scale ( x 2) [D]: DF exposure glass When reinstalling, make sure that the mark [F] is on the bottom. 4-11 C275...

  • Page 88: Lens Block

    Do not grasp the PCB or the lens assembly when handling the lens block. The lens assembly may slide out of position. Exposure glass ( p.4-11) [A]: Lens cover ( x 5) [B]: Ribbon cable [C]: Lens block ( x 4). C275 4-12...

  • Page 89: Exposure Lamp And Lamp Stabilizer Board

    Place one hand under the lamp stabilizer board [A] and release the hook [B]. Remove the lamp stabilizer board [A] ( x 2). Press the plastic latch [C] and push the front end of the lamp toward the rear. Remove the lamp [D] (with the cable). 4-13 C275...

  • Page 90: Scanner Motor

    [A]: Scanner motor ( x 3, x 1, x 1, 1 spring, 1 belt) When reassembling, install the belt first, and set the spring next. Fasten the leftmost screw (viewed from the rear), then fasten the other two screws. C275 4-14...

  • Page 91: Scanner Home Position Sensor

    Front cover ( p.4-6 "Front Cover and Front Door") Operation panel ( p.4-7) Exposure glass, DF exposure glass (if installed) ( p.4-11) [A]: Scanner left lid ( x 7, x 1). [B]: Sensor tape [C]: Scanner home position sensor 4-15 C275...

  • Page 92: Platen Cover Sensor

    Scanner 4.6.6 PLATEN COVER SENSOR Top rear cover ( p.4-8 "Upper Covers") [A]: Platen cover sensor ( x 1). C275 4-16...

  • Page 93: Adjusting The Scanner Position

    To adjust the belt contact points on the first scanner ( Adjusting the Belt Contact Points for the First Scanner) To adjust the belt contact points on the scanner bracket ( Adjusting the Belt Contact Points for the Second Scanner) 4-17 C275...

  • Page 94: Adjusting The Belt Contact Points For The First Scanner

    Align all four holes: 1st scanner, frame, arm of second scanner and frame Insert the positioning tools [D] [E] through the holes. Check that the scanner belts [B] [C] [G] [H] are properly set between the bracket and the 1st scanner. Tighten the screws [A] [F]. C275 4-18...

  • Page 95: Adjusting The Belt Contact Points For The Second Scanner

    Disconnect the platen cover sensor connector [A]. Scale bracket [B] ( x 2) 1). Take off the scale bracket, otherwise the screws [D] cannot be loosened. 2). Take off the bracket [C] in order to take off the scale bracket. 4-19 C275...
  • Page 96 Align all four holes: 1st scanner, frame, arm of second scanner and frame Insert the positioning tools [E] [F] through the holes. Check that the scanner belts are properly set in the brackets. Remove the positioning tools. Reassemble the machine and check the operation. C275 4-20...

  • Page 97: Master Feed

    Master Feed 4.7 MASTER FEED 4.7.1 MASTER MAKING UNIT [A]: Master making unit cover ( x 3) [B]: Master making unit ( x 2, x 4, x 1, x 1) 4-21 C275...

  • Page 98: Master Making Unit Set Switches

    "Front Cover and Front Door") [B]: Master making unit set switch ( x 1, x 1) There are two master making unit set switches for safety. Both sensors must be on or the machine will not start. C275 4-22...

  • Page 99: Thermal Head

    Master making unit ( p.4-21) [A]: Open the platen roller unit. [B]: Thermal head upper cover ( x 2) [C]: Thermal head side cover ( x 1) Close the platen roller unit. [D]: Thermal head ( x 2) 4-23 C275...

  • Page 100: Installation

    Adjust the thermal head voltage ( p.4-27) after installing the new thermal head. Do not touch the surface with bare hands. (If you touch it, clean the surface with alcohol.) Do not touch the terminals of the connectors with bare hands. C275 4-24...

  • Page 101: Master Set Cover Sensor

    Thermal head upper cover ( p.4-23 "Thermal Head") Thermal head side cover ( p.4-23 "Thermal Head") [A]: Master end sensor ( x 2, x 1) Adjust the master end sensor ( p.4-29) after installing a new sensor. 4-25 C275...

  • Page 102: Cutter Unit

    [B]: Shaft ( x 2) [C]: Bracket ( x 2) [D]: Cutter unit ( x 3, x 1, x 1) To remove the screw [E], you must slide the thermal head a small distance towards the paper feed table. C275 4-26...

  • Page 103: Thermal Head Voltage Adjustment

    If the output and ground terminals touch each other, the board will be damaged. Connect the power plug, and turn on the main switch to access SP mode. Select SP5-12 (Thermal head signal output). Press the # key. Power is continuously supplied to the thermal head, which could 4-27 C275...
  • Page 104 A beeper sounds while the power is being supplied. Measure the voltage, and turn RV1 on the PSU until the value is between "+0" and "-0.1" volts from the value on the thermal head decal. C275 4-28...

  • Page 105: Master End Sensor Adjustment

    The core of a used master roll (the core just before a master end Tools display appears) Rear cover ( p.4-7) Place the core inside the master making unit, and close the master making unit. Connect the power plug, and turn on the main switch. Access SP6-50. 4-29 C275...
  • Page 106 Master Feed Turn VR2 [A] on the MPU board until the display is 2.0 ± 0.1 volts. C275 4-30...

  • Page 107: Master Eject

    Master Eject 4.8 MASTER EJECT 4.8.1 MASTER EJECT UNIT Open the master eject unit. [A]: Master eject unit ( x 3, x 1) 4-31 C275...

  • Page 108: Master Eject Rollers

    4.8.3 MASTER EJECT MOTOR AND PRESSURE PLATE MOTOR Master eject unit ( p.4-31) [A]: Gears ( x 1) [B]: Master eject motor ( x 2, x 1, x 2) [C]: Pressure plate motor ( x 2, x 1, x 2) C275 4-32...

  • Page 109: Drum Master Sensor, Master Eject Sensor And Eject Box Set Sensor

    Master eject unit ( p.4-31) Master eject box [A]: Drum master sensor ( x 2, x 1) [B]: Bracket ( x 2, x 1) [C]: Master eject sensor ( x 1, x 1) [D]: Eject box set sensor ( x 1) 4-33 C275...

  • Page 110: Pressure Plate Hp Sensor And Pressure Plate Limit Sensor

    4.8.5 PRESSURE PLATE HP SENSOR AND PRESSURE PLATE LIMIT SENSOR Master eject unit ( p.4-31) Master eject box [A]: Pressure plate HP sensor ( x 1) [B]: Gear ( x 1, 1 pin) [C]: Pressure plate limit sensor ( x 1) C275 4-34...

  • Page 111: Air Knife Fan Motor

    [A]: Air knife fan duct ( x 2) [B]: Air knife fan motor ( x 1, x 1, x 2) 4.8.7 MASTER EJECT POSITION SENSOR Rear cover ( p.4-7) [A]: Master eject position sensor ( x 1, x 1, x 1) 4-35 C275...

  • Page 112: Master Clamper Opening Unit

    Master Eject 4.8.8 MASTER CLAMPER OPENING UNIT Rear cover ( p.4-7) [A]: Master clamper opening unit ( x 3, x 2) C275 4-36...

  • Page 113: Paper Feed

    Move the separation pressure slider [E] to position 1. [A]: Pick-up roller ( x 1) [B]: Paper guide ( x 1) [C]: Paper feed roller ( x 1) [D]: Friction pad Do not change the position and direction of the paper guide [B]. 4-37 C275...

  • Page 114: Paper Table Lower Limit Sensor

    Paper Feed 4.9.2 PAPER TABLE LOWER LIMIT SENSOR Rear cover ( p.4-7) [A]: Paper table lower limit sensor ( x 1, x 1) C275 4-38...

  • Page 115: Paper Height Sensor 1 And 2

    [A]: Paper feed unit cover ( x 2) [B]: Paper feed unit cover – small ( x 4, x 1) [C]: Paper height sensor 1 ( x 1, x 1) [D]: Paper height sensor 2 ( x 1, x 1) 4-39 C275...

  • Page 116: Paper End Sensor

    Paper Feed 4.9.4 PAPER END SENSOR Rear cover ( p.4-7) [A]: Paper table ( x 1, x 2) [B]: Paper table bottom plate ( x 5, 3 washers) [C]: Paper end sensor ( x 2, x 1) C275 4-40...

  • Page 117: Paper Table Motor

    "Front Cover and Front Door") [A]: Paper table motor ( x 2, x 1) 4.9.6 PAPER FEED CLUTCH Rear cover ( p.4-7) MPU ( p.4-9) [A]: Paper feed clutch bracket ( x 2) [B]: Paper feed clutch ( x 1, x 1) 4-41 C275...

  • Page 118: Paper Separation Pressure Adjustment

    Move the separation pressure slider [A] to position 1. Increase the paper separation pressure: Move up the screws [B] Decrease the paper separation pressure: Move down the screws [B] Default position: lowest position The adjustment is automatically applied to all settings of the separation pressure slider. C275 4-42...

  • Page 119: Printing

    Remove the drum. [A]: Press roller ( x 1) The bearings on the rear and front differ. During installation, ensure that the bearing with the stopper [B] is positioned towards the rear of the machine. 4-43 C275...

  • Page 120: Registration Sensor

    Printing 4.10.2 REGISTRATION SENSOR [A]: Registration sensor ( x 2, x 1) 4.10.3 FEED START TIMING SENSOR [A]: Feed start timing sensor ( x 1, x 1) C275 4-44...

  • Page 121: 2Nd Feed Timing Sensor

    Printing 4.10.4 2ND FEED TIMING SENSOR Open the master eject unit [A]: 2nd feed timing sensor ( x 1, x 1) 4-45 C275...

  • Page 122: Registration Motor

    [A]: Registration motor (spring, x3, belt, x 1) The side of the motor with the harness [B] should face downward, as shown in the diagram The flange of the gear should face towards the motor as shown in the diagram C275 4-46...

  • Page 123: Registration Roller

    4.10.6 REGISTRATION ROLLER Front cover ( p.4-6 "Front Cover and Front Door") Rear cover ( p.4-7) [A]: Paper table ( x 1, x 2) [B]: Plate ( x 4) MPU ( p.4-9) PSU ( p.4-10) Registration motor ( p.4-46) 4-47 C275...
  • Page 124 Printing [C]: Gear The flange of gear [C] should face towards the machine, as shown in the diagram. [D]: Bearing ( x 2) [E]: Registration roller C275 4-48...

  • Page 125: Press Roller Release Solenoids

    "Front Cover and Front Door") Rear cover ( p.4-7) [A]: Press roller release solenoid ( x 2, x 1) Adjust the press roller release lever ( p.4-50 "Press Roller Release Lever Adjustment") after installing the new solenoid. 4-49 C275...

  • Page 126: Press Roller Release Lever Adjustment

    To find out the correct position of the drum for the adjustment, look at the rear end of the drum shaft. The recess on the drum drive gear meets the hole [A] in the bracket when the drum is in the correct position. C275 4-50...
  • Page 127 [D] (rear side). It should be between 0.7 and 1.2 mm. If it is not correct, adjust the position of the press roller lock lever after loosening the two screws [E]. Repeat steps 2 and 3 for the front side. 4-51 C275...

  • Page 128: Printing Pressure Adjustment

    Within 10 ± 0.5 mm Paper delivery unit ( p.4-65) Adjust the distance [A] to 10 ± 0.5 mm by turning the adjusting bolt [B]. Repeat the same procedure for the printing pressure spring at the non-operation side. C275 4-52...

  • Page 129: Drum

    To do this, set SP2-10 (ink detection) to off, and feed paper until ink ends. 4.11.2 CLOTH SCREEN Remove the drum. Remove the drum upper bracket ( x 4). Release the stopper [A], then rotate the drum until the master clamper faces top. 4-53 C275...

  • Page 130: Installation

    Properly insert the edge of the cloth screen [A] on the cloth screen under the mylar [B] on the metal screen, as shown above. Otherwise, ink will leak from the trailing edge of the master on the drum during a long printing run. C275 4-54...
  • Page 131 When replacing the cloth screen, spread the screen around the metal screen while pulling the stay [C]. Adjust the stay so that it is parallel to the master clamper, then tighten the screws. Make sure that the cloth screen is not wrinkled while spreading it around the drum. 4-55 C275...

  • Page 132: Clamper And Metal Screen

    Use a cloth dampened with water to clean the inside of the clamping plate [C]. Never use alcohol or other solvents, or the clamping force of the magnet will be weakened. [D]: Tape (do not lose it) [E]: Metal screen ( x 12) C275 4-56...

  • Page 133: Installation

    [A] on the trailing side are round holes and the other holes are long holes, to allow for the removal of the slack.) Position the springs [B] and [C] (one each at the front and rear) as shown when 4-57 C275...

  • Page 134: Ink Pump Unit

    The side [E] with the part number printed on it must be on the top. 4.11.4 INK PUMP UNIT Remove the drum. Cloth screen ( p.4-53) Clamper / Metal screen ( p.4-56) [A]: Ink pump unit ( x 1, x 2) C275 4-58...

  • Page 135: Ink Roller Unit And Ink Roller One-Way Clutch

    1) [C]: Front drum bracket ( x 3) [D]: Front drum flange [E]: Drum rear plate ( x 2) Loosen the screw [F] to take off the drum rear stoppers ( x 1) [G]: Drum rear flange 4-59 C275...
  • Page 136 Drum [H]: Ink roller unit [I]: Ink roller one-way clutch C275 4-60...

  • Page 137: Doctor Roller Gap Adjustment

    Wipe off the ink around the ink roller beforehand. (Use SP2-10.) Remove the drum Remove the Ink roller unit Make sure that a 0.07 mm gap gauge goes through the gap [A] between the ink and doctor rollers, and that a 0.09 mm gap gauge does not. 4-61 C275...
  • Page 138 If the gap is out of the standard, loosen the screw [B] and adjust the gap by turning the cam bushing [C] for the front and for the rear. Make sure to repeat the adjustment for both ends of the rollers. C275 4-62...

  • Page 139: Ink Detection Adjustment

    If it is not correct, adjust the ON timing of the detection signal by turning VR1 beside the test pins. If the ink detection off mode has been selected with SP2-10, do not forget to return it to the default (detection on). 4-63 C275...

  • Page 140: Simple Method

    If the simple method gives an inaccurate result (causing ink flooding, for example), it is possible that too much ink will come out into the drum during printing. If this happens, repeat the adjustment, but use the oscilloscope method, because this is more accurate. C275 4-64...

  • Page 141: Paper Delivery

    Paper Delivery 4.12 PAPER DELIVERY 4.12.1 PAPER DELIVERY UNIT [A]: Paper table ( x 2) [B]: Paper delivery cover ( x 5) 4-65 C275...
  • Page 142 Paper Delivery [C]: Paper delivery unit ( x 2, x 3) C275 4-66...

  • Page 143: Delivery Belt, Paper Exit Sensor, Vacuum Fan Motor And Paper Delivery Unit Bushings

    [A]: Vacuum fan motor bracket ( x 4) [B]: Vacuum fan motor ( x 2, pin x 2) [C]: Paper exit sensor ( x 1) Make sure that you install the vacuum fan [B] the correct way around. 4-67 C275...

  • Page 144: Paper Delivery Motor

    When installing the paper delivery motor in the paper delivery unit, make sure that the pulley of the paper delivery motor hooks the timing belt [B], and the paper delivery motor is linked with the delivery belts [C] of the paper delivery unit. C275 4-68...

  • Page 145: Exit Pawl Adjustment

    The drum turns to home position automatically immediately after the power switch is turned on. Loosen screw [A] then screw [B] in this order (do not remove them). Make sure that the bracket [C] becomes free from engagement and the cam follower [D] contacts the drum flange. 4-69 C275...

  • Page 146: Timing Adjustment

    Reposition the bracket [C] and tighten the screws [A] and [B]. Timing adjustment Do this after the clearance adjustment. Standard: 0 or less than 0.5 mm Turn the drum manually until the recess in the drum drive gear meets the positioning hole [A] in the bracket, as shown. C275 4-70...
  • Page 147 Re-tighten the two screws while pushing the cam follower against the cam face. Make sure that the gap [F] is 0 or less than 0.5 mm. Do not push the cam followers too strongly against the cam. Re-position the bracket [D] and tighten the screws [B] and [C]. 4-71 C275...

  • Page 148: Main Drive

    Main Drive 4.13 MAIN DRIVE 4.13.1 REGISTRATION MOTOR Rear cover ( p.4-7) MPU ( p.4-9) PSU ( p.4-10) [A]: Paper table ( x 1, x 2) [B]: Plate ( x 4) C275 4-72...
  • Page 149 [C]: Registration motor (spring, x3, belt) The side of the motor with the harness [D] should face downward, as shown in the diagram. The flange of the gear should face towards the motor, as shown in the diagram. 4-73 C275...

  • Page 150: Main Motor

    [B]: Bracket ( x 2, bushing x 1) [C]: Drive bracket ( x 8) If the drive bracket [C] is to be removed from the machine with the drum removed, return the drum position to its home position [D]. C275 4-74...

  • Page 151: Main Drive Timing Belt Adjustment

    Rear cover ( p.4-7) MPU ( p.4-9) Loosen the screws [A], [B], and [C]. Move the tension roller [D] to the right with a screwdriver [E] as shown. Tighten the screws [A], [B], and [C]. Remove the screwdriver. 4-75 C275...

  • Page 152: Main Motor Pulley Position

    After putting the pulley back on the main motor shaft, refer to the above illustration for the correct position of the pulley. Standard: 46.3 ± 0.3 mm Tighten the screws alternately little by little. Do not tighten them completely one by one. C275 4-76...

  • Page 153: Modification Of Color Drum Into Black Drum

    Black drum Identify Color Identify size 1 Identify size 2 B4 drum No jumper Jumper inserted Jumper inserted A4 drum No jumper Jumper inserted No jumper LG drum No jumper No jumper Jumper inserted 4-77 C275...
  • Page 154 2. Replace the ink holder and the parts in call out [A] NOTE: Refer to the correct parts catalog for the most up to date part numbers. Black Drum – Use C275 catalog. Color Drum – Use Color Drum Type20 (C643/C647/C648) catalog.

  • Page 155: Part Numbers

    Shield: Holder: Ink Cartridge C2672571 (-61/80/83/92/93) C2522550 (-76/78) C6212560 Holder: Ink Cartridge C2672640 (-80/83/93) C2672675 (-61) C2672676 (-92) NOTE: Make sure to check the country code (-XX) on the machine serial number plate so the correct black drum parts are ordered. 4-79 C275...

  • Page 157: System Maintenance

    SYSTEM MAINTENANCE R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew None...

  • Page 159: Service Program Mode

    Service Program Mode 5. SYSTEM MAINTENANCE 5.1 SERVICE PROGRAM MODE See "Appendices" for the "Service Program Mode". C275...

  • Page 161: Troubleshooting

    TROUBLESHOOTING R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew None...

  • Page 163: Troubleshooting Guide

    Troubleshooting Guide 6. TROUBLESHOOTING 6.1 TROUBLESHOOTING GUIDE See "Appendices" for the followings: "Service Call Conditions" "Electrical Component Defects" "DIP SW, LED, VR, TP and Fuse Tables" C275...

  • Page 165: Energy Saving

    ENERGY SAVING R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew None...

  • Page 167: Energy Save

    If the timers are changed, then the energy saved will be different. For example, if the timers are all set to 120 min., the grey area will disappear, and no energy is saved before 120 min. expires. C275...

  • Page 168: Timer Settings

    Energy saver timer (1 – 120 min): Low Power Mode. Default setting: 3 minute Auto off timer (1 – 120 min): Off Default settings: C275 3 min. The energy saver timer and the auto off timer cannot be used at the same time. Only one is available.

  • Page 169: Paper Save

    If combine mode is used, the total counters work in the same way as explained previously. The following table shows paper savings and how the counters increase for some simple examples of combine jobs. 2 in 1 mode: Simplex Sheet Paper Originals used Saved C275...
  • Page 171 C275 SERVICE MANUAL APPENDICES...
  • Page 173 C275 APPENDICES TABLE OF CONTENTS APPENDIX: GENERAL SPECIFICATIONS .........1-1     GENERAL SPECIFICATIONS ..............1-1     APPENDIX: PM TABLES .............2-1     MAINTENANCE TABLES ................2-1     2.1.1 MAIN BODY ..................2-1     2.1.2 ADF ....................2-4  ...
  • Page 174 SP Table (SP 7-xxx) ................6-26   6.1.11 8. SYSTEM TEST ..............6-27     SP Table (SP 8-xxx) ................6-27   6.1.12 9. PRINT CONTROLLER ............6-31     SP Table (SP 9-xxx) ................6-31   C275 SM Appendix...
  • Page 175 APPENDIX: GENERAL SPECIFICATIONS R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew None...

  • Page 177: Appendix: General Specifications

    52 to 105 g/m , 14 to 28 lb. A4/ 8 1/2" x 11" or less: 40 sheets (80 g/m [20 lb.]) Original Stack Capacity (ADF) More than A4/ 8 1/2" x 11": 30 sheets (80 g/m [20 lb.]) SM Appendix C275...
  • Page 178 Master Eject Box Capacity 30 masters Copy Paper Capacity 1,000 sheets (64 g/m , 17 lb.) 1,000 sheets (64 g/m , 171 lb., Normal Printing Paper Delivery Tray Capacity Mode) 500 sheets (64 g/m , 17 lb., A3 Printing Mode) C275 SM Appendix...
  • Page 179 Set up: 1224 x 681 x 633 mm, 48.2" x 26.8" x 24.9" Set up with ADF: 1224 x 681 x 686 mm, 48.2" x 226.8" x 27.0" 69.0 kg (Main) Weight 2 kg (Platen) 7 kg (ADF) SM Appendix C275...
  • Page 180 ± 10 mm (Normal Printing Mode) Fixed (A3 Printing Mode: -10 mm (B4/LG Side / Vertical Registration Adjustable model) or -20 mm (A4 model) Range Vertical Registration: ± 10 mm or more (Normal Printing Mode) Fixed at Center (A3 Printing Mode) C275 SM Appendix...
  • Page 181 Yellow, Maroon, Navy, Orange, Hunter green Storage Condition -5 to 40 C, 10 to 95 %RH -5 to 40 C (12 months after production date) Storage Period 15 to 25 C (18 months after production date) Avoid locations exposed to direct sunlight. SM Appendix C275...

  • Page 183: Appendix: Pm Tables

    APPENDIX: PM TABLES R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew None...

  • Page 185: Maintenance Tables

    2.1.1 MAIN BODY Time Print Counter Note 300K 600K 1.2M Optics Clean with Exposure glass water. Clean with Platen cover water. Clean with White plate water. Master Feed Clean with Thermal head alcohol. Clean with Platen roller alcohol. SM Appendix C275...
  • Page 186 Note 300K 600K 1.2M Drum and Ink Supply Ink nozzle Damp cloth Drum master Dry cloth sensor Black patches Dry cloth Cloth screen Ink roller one-way clutch Drum master Dry cloth sensor Clean with Master clamper water. C275 SM Appendix...
  • Page 187 Pick-up roller cloth Clean with Friction pad alcohol. Registration Clean with rollers alcohol. Feed start timing Dry cloth sensor Dry or damp Press roller cloth Grease Drum drive gears (Alvania #2) Paper feed clutch Paper delivery motor SM Appendix C275...

  • Page 188: Adf

    Feed belt alcohol. Clean with water or Separation roller alcohol. Clean with water or Pick-up roller alcohol. Clean with water or White plate alcohol. DF exposure Clean with water. glass Clean with water or Platen cover alcohol. C275 SM Appendix...
  • Page 189 APPENDIX: SERVICE CALL CONDITIONS R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew None...

  • Page 191: Appendix: Service Call Conditions

    Paper table lower limit sensor Paper height sensor 1 or 2 does not turn Gears on within 1 second after the paper height Paper table spring sensor 1 or 2 turn on. SM Appendix C275...
  • Page 192 SW is turned on. The pressure plate home position sensor does not turn off when the pressure plate limit sensor does not turn on within 4.5 seconds when compressing the ejected master. C275 SM Appendix...
  • Page 193 The master eject position sensor does not activate before the feed start timing sensor activates. E-24 Feed Start Timing Sensor error: Drum sensors The feed start timing sensor does not Feeler activate before the 2nd feed timing sensor activates. SM Appendix C275...
  • Page 194 Replace the MPU The data in the flash ROM is not complete. E-61 Auto Off Switch error: Auto off switch defective The main switch does not turn off for more Auto off switch connector than 6.0 seconds. disconnected C275 SM Appendix...

  • Page 195: Electrical Component Defects

    APPENDIX: ELECTRICAL COMPONENT DEFECTS R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew None...

  • Page 197: Paper Feed And Exit

    4.1 ELECTRICAL COMPONENT DEFECTS 4.1.1 PAPER FEED AND EXIT Jam Type Paper feed A Jam Drum B Jam Paper eject C Jam Master feed D Jam Master eject E Jam P Jam Paper remaining A or B Jam SM Appendix C275...

  • Page 198: Drum

    Image will be patchy because ink will not be supplied. Drum Ink Sensor Displays "Ink end". 4.1.3 PAPER EJECT Name State Symptoms Paper Exit Sensor Open The "C" jam indicator is lit. Shorted The "B" jam indicator is lit when a copy is made. C275 SM Appendix...

  • Page 199: Paper Feed

    The paper table goes up over the sensor, and Shorted E-02 is displayed Paper height sensor E-02 is displayed after 1 second from moving up Open the paper feed table during printing. The paper table goes up over the sensor, and Shorted E-02 is displayed SM Appendix C275...

  • Page 200: Main Drive

    Platen Cover Sensor The master is made normally, even if the platen Open cover is open. (Have to push the start button twice) The image is treated using center/edge erase Shorted mode. Scanner HP Sensor Open E-13 is displayed. C275 SM Appendix...

  • Page 201: Master Eject

    "No master eject box" is displayed. "Full eject master" indicator is lit. Master Eject Sensor Open The "B" and "E" jam indicator is lit. Shorted The "B" jam indicator is lit Master eject unit Open "Unit open" is displayed. safety switch SM Appendix C275...

  • Page 202: Master Making Unit

    Thermal Head Open E-09 is displayed. Temperature Short E-04 is displayed. 4.1.9 OTHER Name State Symptoms Auto shut off Switch Cannot shut off the main switch. E-61 is displayed at auto shut off. The main switch stays off C275 SM Appendix...

  • Page 203: Appendix: Dip Sw, Led, Vr, Tp And Fuse Tables

    APPENDIX: DIP SW, LED, VR, TP AND FUSE TABLES R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew None...
  • Page 205 5. APPENDIX: DIP SW, LED, VR, TP AND FUSE TABLES 5.1 DIP SW, LED, VR, TP AND FUSE TABLES 5.1.1 TEST POINTS Usage GND-a Standard Pulse Ink Detection Pulse TP11 +5VE TP12 GND-a 5.1.2 POTENTIOMETERS Usage Ink detection adjustment Master End Sensor Adjustment SM Appendix C275...

  • Page 206: Mpu

    Low Ink Condition Sufficient Ink Condition LED 3 CPU1 (not use for service) LED 4 CPU1 (not use for service) 5.1.4 FUSES Rated FUSE # Voltage Related Devices Current FU 1 5 V DC UC2 PC Controller C275 SM Appendix...

  • Page 207: Psu

    Optional Key Counter, Master Counter, Paper Counter, Cutter Motor, Clamper Motor, Scanner Motor FU 702 T6.3 A 24V DC Not used FU 703 T8 A 24V DC Main Motor FU 704 T6.3 A 24V DC Optional Tape Dispenser SM Appendix C275...

  • Page 209: Appendix: Service Program Mode Tables

    APPENDIX: SERVICE PROGRAM MODE TABLES R E V I S I O N H I S T O RY P a ge D a t e A d de d /U pd at e d /N ew None...

  • Page 211: Service Program Mode

    Using the number keys or the keys, enter the desired sub-menu number, then press the Enter key or the OK key. Enter the desired value or mode using the number keys (SP modes are listed in the service program tables). SM Appendix C275...

  • Page 212: Main Menu Number List

    To cancel the SP mode, press the Clear Modes/Energy Saver key [F] or the Cancel key [G]. 6.1.3 MAIN MENU NUMBER LIST Main Menu Copy Data Basic Settings System Settings Input Mode Output Mode Adjustment Memory Clear System Test C275 SM Appendix...

  • Page 213: Sp Table (Sp 1-Xxx)

    A - paper registration jam B - paper wrapping jam C - paper delivery jam P - original feed - in jam P - original feed - out jam D - master cut jam Main firmware part number Serial number SM Appendix C275...
  • Page 214 Displays the main firmware parts number and the suffix. SP1-80: Error Code History Displays the latest 40 SC codes. Use the keys to view the codes. SP1-83: PSU Unusual Voltage History Display the unusual power supply events in the machine history. C275 SM Appendix...

  • Page 215: Sp Table (Sp 2-Xxx)

    Off/On (Off is used for tests, and for removing ink from the drum) Paper end sensor Off/On (Off is used for tests) Drum master sensor Off/On (Off is used for tests) Platen cover sensor Off/On (Off is used for tests) SM Appendix C275...
  • Page 216 0 to 50% T/H energy control - B4/Black eco 0 to 50% T/H energy control - B4/Color eco 0 to 50% T/H energy control - A4/Black eco 0 to 50% T/H energy control - A4/Color eco 0 to 50% C275 SM Appendix...
  • Page 217 When the machine performs re-feeding, the paper registration position can be up to 5mm out of range. If this incorrect position is not acceptable to the customer, change this SP mode to "OFF". ON: Re- feeding is on (factory setting). OFF: Re- feeding is off. SM Appendix C275...
  • Page 218 Proof print mode enabled (SP2-34: ON) Setting of SP2-35: "1" Number of sheets Idling Speed (cpm) Setting of SP2-35: "5" Number of sheets Idling Speed (cpm) Proof print mode enabled (SP2-34: ON) and skip feed mode enabled (2 sheets) C275 SM Appendix...
  • Page 219 This prevents the same parts of the thermal head from being used all the time, because if masters that contain the same image (such as a logo) are made frequently, this can burn out the thermal head. Default: OFF SM Appendix C275...
  • Page 220 Wrap a blank master around the drum after you print, to prevent ghost images of previous prints when the machine is not used for a long time. Procedure: Access SP2-100 (Make master without printing). Then press "OK". Press the "Start" key while holding down the "#" key. C275 6-10 SM Appendix...

  • Page 221: System Settings

    Input the last two digits of the present year (two-digit number). Input the present month (two-digit number). Input the present date (two-digit number). Input the present hour (two-digit number). Input the present minute (two-digit number). Input the present second (two-digit number). Example: 2003/January/27th/13:00:00 SM Appendix 6-11 C275...
  • Page 222 Input installation date in that order. Press the Enter key between each one. Input the last two digits of the present year (two-digit number). Input the present month (two-digit number). Input the present date (two-digit number). Example: 2003/January/27th/13:00:00 C275 6-12 SM Appendix...

  • Page 223: Input Mode

    Pressure plate limit Sensor Door safety switch Ink detection signal ADF connecting signal Color drum signal ADF cover sensor ADF registration sensor Drum set signal ADF original set sensor Clamper open sensor ADF open sensor Clamper close sensor SM Appendix 6-13 C275...
  • Page 224 Service Program Mode Menu Items Menu Items Drum master sensor Key counter signal Master eject position SN Key card signal (Japan only) Drum size1 signal Drum size2 signal C275 6-14 SM Appendix...

  • Page 225: Output Mode

    Pressure plate motor - limit Paper counter Pressure plate motor -to HP Master counter ADF motor Main motor - 30 rpm ADF feed clutch Main motor - 60 rpm ADF pick-up solenoid Main motor - 80 rpm Key counter signal SM Appendix 6-15 C275...
  • Page 226 Clamper motor: to close Main motor – to Master clamp Ink pump motor Pressure release solenoids 100 All indicators on the panel Table motor – down 111 Auto Off solenoid Table motor – up Paper feed clutch C275 6-16 SM Appendix...

  • Page 227: Adjustment

    0: Pale, 1: Normal, 2: Dark Master making density - Photo 0: Pale, 1: Normal, 2: Dark Master making density - 0: Pale, 1: Normal, 2: Dark Letter/Photo Master making density - Letter 0: Pale, 1: Normal, 2: Dark SM Appendix 6-17 C275...
  • Page 228 Master length – A4 drum 4140 3000 to 6000 (0.1mm) SBU VRT value – SBU FBO value – SBU FBE value – Paper registration 30rpm -40 to 40 Paper registration 60rpm -40 to 40 Paper registration 80rpm -40 to 40 C275 6-18 SM Appendix...
  • Page 229 Paper middle bulge 130rpm (Do not -100 to 100 Adjust) Paper front bulge 30rpm (Do not -90 to 8 Adjust) Paper front bulge 60rpm (Do not -90 to 8 Adjust) Paper front bulge 80rpm (Do not -90 to 8 Adjust) SM Appendix 6-19 C275...
  • Page 230 Paper middle bulge A4 30rpm(Do -100 to 100 not Adjust) Paper middle bulge A4 60rpm(Do -100 to 100 not Adjust) Paper middle bulge A4 80rpm(Do -100 to 100 not Adjust) Paper middle bulge A4 100rpm(Do -100 to 100 C275 6-20 SM Appendix...
  • Page 231 The length of the 6 squares in the feed direction should be 130 mm, as shown above. If it is not, calculate the reproduction ratio using the following formula. {(130 - Value) / 130} x 100 = ± X.X % (Round off to one decimal place) SM Appendix 6-21 C275...
  • Page 232 Example: If the value is 7 mm, 7 - 8 = -1.0 Repeat the procedure to make sure that the gap is correct. Make copies of the test pattern in ADF mode and repeat the process using SP6-04. C275 6-22 SM Appendix...
  • Page 233 The paper registration position will be correct. SP6-32 to 37: MTF filter Sharpens the image, but moiré can become more apparent. Refer to the following table for the relationship between this SP mode value and filter strength (the relationship is not linear). SM Appendix 6-23 C275...
  • Page 234 SP2-10 to the default (ink detection on). Access SP6-40, and open the door cover. Then turn the VR1 [A] on the MPU board until the display becomes "4.0 ± 0.2 " (4 C275 6-24 SM Appendix...
  • Page 235 (and vice-versa). Also, each step corresponds to approximately 0.5mm. Input the value that will bring the distance to 8mm. Perform the adjustment again for any of the samples that are still outside the 8mm standard. SM Appendix 6-25 C275...

  • Page 236: Memory Clear

    The counters for "User tool 1: Counter Display" are unresettable counters SP7-11: Protect Code clear This clears the settings of the "User Tools Protect (Administrator Setting)". User Tools Protect: Off User Tools Protect PW (Password): null C275 6-26 SM Appendix...

  • Page 237: System Test

    65%~155% Free run - scanner 100% 65%~155% Paper feed at 30rpm Off/On Free run - Paper feed Off/On All indicators on panel Active when start press LCD data download (Do not use) Off/On Drum size/type check SM Appendix 6-27 C275...
  • Page 238 Connect the power cord, then turn on the main switch while holding the Clear Modes key. Access SP8-2 and press the OK key. Press the "Enter(#)" key. Refer to steps 8 and 10 in section (download main firmware). C275 6-28 SM Appendix...
  • Page 239 [A]: Momentary Voltage Drop [B]: Over voltage [C]: Low voltage [D]: High voltage The machine collects information about unusual voltages from the power outlet and you can check this data with SP 8-9 Data printout – Power failure SM Appendix 6-29 C275...
  • Page 240 Access SP8-22 and press the OK key. Exit the SP mode and enter the number of times that you want to repeat the paper feed cycle. Press the Print key. To exit this mode, turn off the main switch. C275 6-30 SM Appendix...

  • Page 241: Print Controller

    In normal operation, an image that is sent from the computer is printed out. But with this SP mode, the image is changed to hex data and then output on paper or to an SD card. There are three settings: 0: Normal (Default setting) 1: Hex Dump 2: SD card SM Appendix 6-31 C275...
  • Page 242 Set SP 9-1 to "0: Normal". Turn off the main switch. Remove the SD card from the machine. Do not take out the SD card before you turn off the main switch and set the SP Mode to "Normal". C275 6-32 SM Appendix...
  • Page 243 DOCUMENT FEEDER C642...
  • Page 244 DOCUMENT FEEDER C642 TABLE OF CONTENTS 1. OVERALL INFORMATION .............1 1.1 MECHANICAL COMPONENT LAYOUT ............1 1.2 ELECTRICAL COMPONENT LAYOUT ............2 1.3 DRIVE LAYOUT................... 3 2. DETAILED SECTION DESCRIPTIONS .........-4 2.1 ORIGINAL SIZE DETECTION ..............4 2.2 PICK-UP AND SEPARATION..............4 2.3 ORIGINAL TRANSPORT AND EXIT MECHANISM........

  • Page 245: Overall Information

    MECHANICAL COMPONENT LAYOUT 1. OVERALL INFORMATION 1.1 MECHANICAL COMPONENT LAYOUT C642V900.WMF 1. Separation roller 6. Original exit roller 2. Original feed belt 7. 2nd transport roller 3. Pick-up roller 8. Original exposure guide 4. Original entrance guide 9. 1st transport roller 5.

  • Page 246: Electrical Component Layout

    ELECTRICAL COMPONENT LAYOUT 1.2 ELECTRICAL COMPONENT LAYOUT C642V901.WMF 1. DF feed clutch 2. Feed cover open sensor 3. DF pick-up solenoid 4. DF transport motor 5. DF drive board 6. DF position sensor 7. Original set sensor 8. Registration sensor C642...

  • Page 247: Drive Layout

    DRIVE LAYOUT 1.3 DRIVE LAYOUT C642V903.WMF 1. DF feed clutch 5. Separation roller 2. DF transport motor 6. 1st transport roller 3. 2nd transport roller 7. Original feed belt 4. Exit roller 8. Pick-up roller C642...

  • Page 248: Detailed Section Descriptions

    ORIGINAL SIZE DETECTION 2. DETAILED SECTION DESCRIPTIONS 2.1 ORIGINAL SIZE DETECTION The ADF does not have original size sensors (Original width sensor, Original length sensor and Original trailing edge sensor). 2.2 PICK-UP AND SEPARATION C642V904.WMF C642V905.WMF An FRR (feed and reverse roller) system is used. When you put an original on the feed table, this lifts the original set sensor feeler [A], then the original set sensor [B] tells the main CPU that the DF is ready to start feeding.

  • Page 249: Original Transport And Exit Mechanism

    ORIGINAL TRANSPORT AND EXIT MECHANISM on, feeding the top original page to the paper feed belt [I], where it is separated by the separation roller [J]. 2.3 ORIGINAL TRANSPORT AND EXIT MECHANISM C642V906.WMF When the leading edge of the original reaches the registration sensor at [A], the DF transport motor turns off.

  • Page 250: Timing Chart / Jam Detection (P Jam Location Indicator)

    TIMING CHART / JAM DETECTION (P JAM LOCATION INDICATOR) 2.4 TIMING CHART / JAM DETECTION (P JAM LOCATION INDICATOR) Finish Scanning Original Registration Sn Original Feed Motor Original feed Clutch Feeding in Feeding out C642V907.WMF Feeding in the original Feeding in The P jam indicator lights if the original registration sensor does not turn on within 5 seconds after the original feed motor turns on.

  • Page 251: Overall Electrical Circuit

    OVERALL ELECTRICAL CIRCUIT 2.5 OVERALL ELECTRICAL CIRCUIT The MPU controls the DF transport motor, DF feed clutch and DF pick-up solenoid. The MPU also monitors all sensors and provides updated status when prompted at regular intervals by the mainframe, which may then take action based on this information.

  • Page 252: Replacement And Adjustment

    EXTERIOR COVERS 3. REPLACEMENT AND ADJUSTMENT 3.1 EXTERIOR COVERS 3.1.1 REAR COVER C642V908.WMF C642V909.WMF 1. Lift the DF. 2. Unhook the three latches [A] in the order marked on the DF body. 3. Close the DF. 4. Open the DF feed cover [B]. 5.

  • Page 253: Original Table

    EXTERIOR COVERS 3.1.2 ORIGINAL TABLE 1. Rear cover ( 3.1.1) 2. Original table [D] ( x 2,  x 2) 3.1.3 FRONT COVER 1. Open the DF feed cover [B]. 2. Original table. ( 3.1.2) 3. Front cover [E] ( x 2) 3.1.4 ORIGINAL ENTRANCE GUIDE 1.

  • Page 254: Feed Unit

    FEED UNIT 3.2 FEED UNIT C642V911.WMF 1. Open the DF feed cover [A] and detach the strap [B] (  x 1). 2. Raise the front guide flap [C] to about a 45-degree angle, and push the feed unit [D] into the spring so that it comes free. NOTE: 1) The feed unit comes off very easily if you first lift flap [E] to about a 45- degree angle.

  • Page 255: Separation Roller

    SEPARATION ROLLER 3.3 SEPARATION ROLLER C642V912.WMF 1. Feed unit ( 3.2) 2. Roller cover [A] 3. Separation roller [B] ( x 1). 3.4 PICK-UP ROLLER C642V913.WMF 1. Feed unit ( 3.2) 2. Remove 2 clip rings and 1 bushing [A] 3.

  • Page 256: Feed Belt

    FEED BELT 3.5 FEED BELT C642V914.WMF C642V915.WMF 1. Feed unit ( 3.2) 2. Pick-up roller housing [A] 3. Push down on the lower wings [B] of the tensioning piece [C], so that the tensioning piece comes free of the shaft. 4.

  • Page 257: Original Set Sensor

    ORIGINAL SET SENSOR 3.6 ORIGINAL SET SENSOR C642V916.WMF 1. Original entrance guide ( 3.1.4) 2. Sensor bracket [A] ( x 1) 3. Original set sensor [B] ( x 1) 3.7 TRANSPORT MOTOR C642V917.WMF 1. Rear cover ( 3.1.1) 2. Open the wire clamp [A] at the top of the motor bracket [B]. 3.

  • Page 258: Feed Cover Open Sensor / Feed Clutch / Df Drive Board

    FEED COVER OPEN SENSOR / FEED CLUTCH / DF DRIVE BOARD 3.8 FEED COVER OPEN SENSOR / FEED CLUTCH / DF DRIVE BOARD C642V918.WMF Exterior 1. Rear cover ( 3.1.1) Feed Cover Open Sensor 1. Sensor bracket [A] (  x 1) 2.

  • Page 259: Registration Sensor

    REGISTRATION SENSOR 3.9 REGISTRATION SENSOR C642V919.WMF 1. DF feed cover ( 3.1.5) 2. Original entrance guide ( 3.1.4) 3. Outer turn guide [A] (  x 2) 4. Take out the inner turn guide [B], and remove the registration sensor [C] ( x 3.10 PICK-UP SOLENOID C642V920.WMF 1.

Table of Contents