Ricoh C231 Service Manual
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Ricoh C231 Service Manual

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Table of Contents

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C231/C237/C238/C248/C267
SERVICE MANUAL
000914MIU

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Summary of Contents for Ricoh C231

  • Page 1 C231/C237/C238/C248/C267 SERVICE MANUAL 000914MIU...

  • Page 5: Service Manual

    C231/C237/C238/C248/C267 SERVICE MANUAL 000914MIU...
  • 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 C231 5306L JP1030 3150DNP C237 5308L LDD020 JP1230 3150eDNP C238 5430 LDD030 JP3000 3260DNP C248 5309L JP1235 3160DNP C267 CP6143L LDD120 DX3340 3180DNP DOCUMENTATION HISTORY REV. NO. DATE COMMENTS 7/98 Original Printing...

  • Page 13: Table Of Contents

    Rev. 08/2001 C231 TABLE OF CONTENTS OVERALL INFORMATION OVERALL INFORMATION ............... 1-1 1.1 SPECIFICATION ..................1-1 1.2 GUIDE TO COMPONENTS AND THEIR FUNCTION.......1-5 1.2.1 MACHINE EXTERIOR..............1-5 1.2.2 MACHINE INTERIOR ...............1-6 1.2.3 OPERATION PANEL................1-7 Keys......................1-7 Indicators ....................1-9 1.3 PRINTING PROCESS ................1-10 1.4 MECHANICAL COMPONENT LAYOUT ..........1-11 1.5 ELECTRICAL COMPONENT LAYOUT...........1-12...
  • Page 14 Registration Roller Drive ..............2-37 Registration Roller Up/Down Mechanism ...........2-38 2.6.5 PRINTING PRESSURE MECHANISM ...........2-39 2.6.6 PAPER TABLE MECHANISM ............2-40 Table Up and Down Mechanism ............2-40 Paper End Detection Mechanism ............2-40 Paper Table Side Fence Mechanism ..........2-41 Paper Table Side-to-Side Shift Mechanism ........2-41 C231/C237/C238/C248/C267...
  • Page 15 3.2.2 AUTO DOCUMENT FEEDER (OPTION) .........3-9 Accessory Check ..................3-9 Installation Procedure .................3-10 3.2.3 TAPE MARKER (OPTION).............3-14 Accessory Check ................3-14 Installation Procedure - For C231 - .............3-15 3.2.4 COLOR DRUM (OPTION) ..............3-17 3.2.5 INTERFACE BOARD (OPTION) ............3-18 Accessory Check ................3-18 Installation Procedure .................3-18 SERVICE TABLES SERVICE TABLES................
  • Page 16 Input Check Table................4-24 Output Check Table ................4-26 4.5 TEST PATTERN IMAGE MODE .............4-28 4.6 USER CODE MODE ................4-29 4.7 ROM HISTORY ..................4-31 4.7.1 C231 FIRMWARE MODIFICATION HISTORY........4-31 PREVENTIVE MAINTENANCE PREVENTIVE MAINTENANCE............5-1 5.1 MAINTENANCE TABLE ................5-1 REPLACEMENT AND ADJUSTMENT REPLACEMENT AND ADJUSTMENT ..........6-1...
  • Page 17 6.9.1 DRUM CLOTH SCREEN REMOVAL ..........6-33 Remarks for the cloth screen installation ..........6-34 6.9.2 DRUM MASTER CLAMPER AND METAL SCREEN REMOVAL ...6-36 Remarks for drum screen installation..........6-38 6.9.3 INK ROLLER UNIT REMOVAL ............6-39 6.9.4 DOCTOR ROLLER GAP ADJUSTMENT ........6-41 6.9.5 INK DETECTION ADJUSTMENT ...........6-43 C231/C237/C238/C248/C267...
  • Page 18 2.1 OVERVIEW ....................7-2 2.2 DRIVE AND CUTTING MECHANISM ............7-3 2.3 MANUAL CUT ...................7-4 REPLACEMENT AND ADJUSTMENT ..........7-5 3.1 CUTTER REPLACEMENT ................7-5 3.2 CUTTER HOME POSITION SENSOR REPLACEMENT ......7-6 3.3 TAPE CUT LENGTH ADJUSTMENT ............7-7 PRIPORT CONTROLLER USER’S GUIDE C231/C237/C238/C248/C267...
  • Page 19 Rev. 07/2001 C237 TABLE OF CONTENTS 1. OVERALL INFORMATION ............1-1 1.1 ESSENTIAL DIFFERENCES BETWEEN THE C237 AND C231 MODELS ....................1-1 1.2 SPECIFICATIONS..................1-4 1.3 NEW ELECTRICAL COMPONENTS ............1-5 1.3.1 MAIN BODY ..................1-5 1.3.2 TABLES OF ELECTRICAL COMPONENTS ........1-5 Boards ....................1-5 Switches ....................1-5...
  • Page 20 1.2.4 TAPE MARKER (OPTION).............1-15 Accessory Check ................1-15 Installation Procedure .................1-16 - For C238 - ..................1-16 - For C231 and C237- .................1-17 - For C226 - ..................1-18 - For C210, C218, C219, C222, and C223 - ........1-19 - For C217 and C225 - ................1-20 - Common Steps -................1-21...
  • Page 21 3.8.9 MAIN DRIVE TIMING BELT ADJUSTMENT ........3-28 3.9 PAPER DELIVERY..................3-29 3.9.1 PAPER DELIVERY UNIT ...............3-29 3.9.2 DELIVERY BELT / PAPER EXIT SENSOR........3-29 3.9.3 EXIT PAWL ADJUSTMENT ............3-30 Clearance adjustment .................3-30 Timing adjustment................3-31 3.9.4 AIR PUMP ADJUSTMENT .............3-32 3.10 SPECIAL TOOLS ..................3-33 C231/C237/C238/C248/C267...
  • Page 22 SP6-10: Master writing speed.............5-13 SP6-21: Paper registration position ............5-13 SP6-05: Scanning speed - platen ............5-14 SP6-06: Scanning speed - ADF............5-14 SP6-03: Scanning start position - platen..........5-14 SP6-04: Scanning start position - ADF ..........5-14 SP6-01: Main scan position - platen ...........5-14 C231/C237/C238/C248/C267...
  • Page 23 Clamper Mechanism ................6-8 Notes ....................6-8 6.2.3 MASTER EJECT ROLLER MECHANISM ........6-9 Mechanism ...................6-9 Procedure .....................6-9 6.2.4 PRESSURE PLATE MECHANISM..........6-10 Mechanism ..................6-10 Procedure ...................6-10 6.3 SCANNER UNIT..................6-11 6.3.1 OVERVIEW ..................6-11 6.3.2 SCANNER DRIVE ................6-12 Full size mode..................6-12 Reduction/enlargement modes ............6-12 C231/C237/C238/C248/C267...
  • Page 24 Mechanism ..................6-26 Notes ....................6-26 6.6.6 DETECTION OF MASTERS ON THE DRUM ........6-27 6.7 PAPER FEED..................6-28 6.7.1 OVERVIEW ..................6-28 6.7.2 PAPER FEED MECHANISM ............6-29 Mechanism ..................6-29 Notes ....................6-29 6.7.3 PAPER FEED / SEPARATION PRESSURE MECHANISM ...6-30 6.7.4 REGISTRATION ROLLER MECHANISM........6-31 C231/C237/C238/C248/C267...
  • Page 25 Changed “B jam” indicator ..............6-47 6.10.5 PAPER FEED JAM (A JAM LOCATION INDICATOR) ....6-49 Paper feed ..................6-49 Turning on the main switch/end of paper feed ........6-49 6.10.6 PAPER DELIVERY JAM (C JAM LOCATION INDICATOR)..6-49 Paper delivery ..................6-49 SPECIFICATIONS................7-1 1. GENERAL SPECIFICATIONS..............7-1 C231/C237/C238/C248/C267 xiii...
  • Page 26 3.5 ORIGINAL SET SENSOR REPLACEMENT..........8-13 3.6 ORIGINAL SIZE SENSORS REPLACEMENT ........8-14 3.7 ORIGINAL EXIT TRAY/FRONT COVER/REAR COVER REMOVAL ....................8-15 3.8 FEED COVER OPEN SENSOR/DF OPEN SENSOR REPLACEMENT..................8-15 3.9 FEED CLUTCH/PICK-UP SOL/TRANSPORT MOTOR REPLACEMENT..................8-16 3.10 DF FEED COVER REMOVAL ...............8-17 3.11 REGISTRATION SENSOR REPLACEMENT........8-17 C231/C237/C238/C248/C267...
  • Page 27 Rev. 02/2005 C248 TABLE OF CONTENTS 1. ESSENTIAL DIFFERENCES BETWEEN THE C237 AND C248 C231/C237/C238/C248/C267...
  • Page 28 2. PREVENTIVE MAINTENANCE............ 2-1 ADF.......................2-2 3. REPLACEMENT AND ADJUSTMENT ........3-1 3.1 GENERAL CAUTION ................3-1 3.2 COVERS ....................3-1 3.2.1 FRONT COVER / FRONT DOOR.............3-1 3.2.2 OPERATION PANEL................3-2 3.2.3 REAR COVER ..................3-2 3.2.4 UPPER COVERS ................3-3 3.3 BOARDS ....................3-4 3.3.1 MPU....................3-4 C231/C237/C238/C248/C267...
  • Page 29 3.7.3 PAPER HEIGHT SENSOR 1 / 2.............3-30 3.7.4 PAPER END SENSOR..............3-31 3.7.5 PAPER TABLE MOTOR..............3-32 3.7.6 PAPER FEED CLUTCH ..............3-32 3.7.7 PAPER SEPARATION PRESSURE ADJUSTMENT......3-33 3.8 PRINTING ....................3-34 3.8.1 PRESS ROLLER ................3-34 3.8.2 REGISTRATION SENSOR.............3-35 3.8.3 FEED START TIMING SENSOR............3-35 C231/C237/C238/C248/C267 xvii...
  • Page 30 4.2.3 PAPER FEED ...................4-4 4.2.4 MAIN DRIVE..................4-4 4.2.5 SCANNER ..................4-4 4.2.6 MASTER EJECT ................4-5 4.2.7 MASTER MAKING UNIT ..............4-5 4.2.8 OTHER .....................4-6 4.3 DIP SW, LED, VR, TP, AND FUSE TABLES..........4-7 4.3.1 TEST POINTS ..................4-7 MPU......................4-7 4.3.2 POTENTIOMETERS ................4-7 C231/C237/C238/C248/C267 xviii...
  • Page 31 SCANNING SPEED – ADF MODE..........5-14 5.7.5 SP6-3: SCANNING START POSITION – PLATEN AND SP6-4: SCANNING START POSITION - ADF........5-14 5.7.6 SP6-1: MAIN SCAN POSITION – PLATEN AND SP6-2: MAIN SCAN POSITION - ADF ...........5-15 5.7.7 IMAGE ADJUSTMENT (SP6-10, -21, -5, -3, AND -1).....5-15 C231/C237/C238/C248/C267...
  • Page 32 6.3 DRIVE LAYOUT ..................6-5 6.4 SCANNER AND OPTICS ................6-6 6.4.1 SCANNER OVERVIEW..............6-6 Lamp Stabilizer Fuse ................6-6 6.4.2 SCANNER DRIVE ................6-7 6.5 IMAGE PROCESSING ................6-8 6.5.1 IMAGE PROCESSING FLOW............6-8 Shading Correction: ................6-8 Reduce / Enlarge: .................6-8 Filtering: ....................6-8 Gamma Correction:................6-8 Grayscale Processing: ................6-8 C231/C237/C238/C248/C267...
  • Page 33 Automatic Ink Supply for a New Drum ..........6-28 6.8.6 DETECTION OF MASTERS ON THE DRUM ........6-29 6.8.7 METAL SCREEN................6-30 6.8.8 DRUM TYPE DETECTION.............6-31 Black drum..................6-31 Color drum ..................6-31 6.9 PAPER FEED..................6-32 6.9.1 OVERALL ..................6-32 6.9.2 PAPER FEED MECHANISM ............6-33 6.9.3 PAPER FEED/SEPARATION PRESSURE ADJUSTMENT MECHANISM............6-34 C231/C237/C238/C248/C267...
  • Page 34 6.12.4 PAPER FEED JAM (A JAM LOCATION INDICATOR + ) + Z) ..6-55 Paper feed ..................6-55 6.12.5 PAPER DELIVERY JAM (C JAM LOCATION INDICATOR)..6-55 Paper delivery ..................6-55 6.13 TIMING CHART..................6-56 6.13.1 SCANNING...................6-56 6.13.2 MASTER EJECT ................6-56 6.13.3 MASTER FEED ................6-57 6.13.4 PRINT...................6-58 C231/C237/C238/C248/C267 xxii...
  • Page 35 3.8 FEED COVER OPEN SENSOR / FEED CLUTCH / DF DRIVE BOARD.... 14 Exterior ....................14 Feed Cover Open Sensor ..............14 Feed Clutch ................... 14 DF Drive Board ..................14 3.9 REGISTRATION SENSOR................. 15 3.10 PICK-UP SOLENOID ................15 C231/C237/C238/C248/C267 xxiii...

  • Page 37: 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 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 38 SAFETY AND ECOLOGICAL NOTES FOR DISPOSAL 1. Dispose of replaced parts in accordance with local regulations. 2. Used ink and masters should be disposed of in an environmentally safe manner and in accordance with local regulations. 3. When keeping used lithium batteries (from the main processing units) in order to dispose of them later, do not store more than 100 batteries (from the main processing units) per sealed box.

  • Page 39: Overall Information

    C231 OVERALL INFORMATION C237 OVERALL INFORMATION C238 REPLACEMENT AND ADJUSTMENT C642 DOCUMENT FEEDER C231 DETAILED SECTION DESCRIPTIONS C237 DETAILED SECTION DESCRIPTIONS C238 TROUBLESHOOTING C231 INSTALLATION C237 INSTALLATION C238 SERVICE TABLES C231 SERVICE TABLES C237 SERVICE TABLES C238 DETAILED SECTION DESCRIPTIONS...

  • Page 41: C231

    C231 SERVICE MANUAL...

  • Page 43: Overall Information

    OVERALL INFORMATION...

  • Page 45: Specification

    ADF capacity: 30 sheets (using 20 lb or 80 g/m paper) Reproduction Ratios: Inch version Others Full Size: 100% 100% Reduction: Enlargement: 121% 115% 129% 122% 155% 141% Image Modes: Letter, Photo, Letter/Photo, Fine, Tint C231/C237/C238...
  • Page 46 220 - 240 V, 50/60 Hz: 1.5 A Maximum Power Consumption: 250 W Noise Emission: At 80 rpm printing speed: 71 dB (At operation position) At 100 rpm printing speed: 72 dB At 120 rpm printing speed: 72 dB C231/C237/C238...
  • Page 47 260 masters/roll (Legal drum) Max run length per master: 2,000 prints Master Storage Conditions: Temperature: 0 C to 40 C Humidity: 10% to 95% RH Recommended maximum storage period: One year after production date * Avoid locations exposed to direct sunlight. C231/C237/C238...
  • Page 48 Humidity: 10% to 95% RH (Optimum conditions: 20% to 70% RH) Recommended maximum storage period: One year after production date * Avoid locations exposed to direct sunlight. Color Drum Available Options Document Feeder Key Counter Tape Marker PC Controller C231/C237/C238...

  • Page 49: Guide To Components And Their Function

    8. Side Table Fine Adjusting Use to shift the paper feed table sideways. Dial Press to lower the paper feed table. 9. Paper Feed Table Down Flip up when you wish to use the keys underneath. 10. Behind Cover C231/C237/C238...

  • Page 50: Machine Interior

    Use to turn the power on or off. 5. Main Switch 6. Drum Unit The master is wrapped around this unit. Lift to unlock and pull out the drum unit. 7. Drum Unit Lock Lever 8. Ink Holder Set the ink cartridge in this holder. C231/C237/C238...

  • Page 51: Operation Panel

    14. Fine key lowered. Press to select fine image mode. 6. Skip Feed key 15. Image Position key Press to select skip feed printing. Press to shift the image forwards or backwards. C231/C237/C238...
  • Page 52 Press to make proof prints. stop copying. 20. Speed keys 25. Start key Press to adjust the printing Press to make a master. speed. 26. Print key 21. Memory/Class key Press to start printing. Press to select Memory or Class mode. C231/C237/C238...

  • Page 53: Indicators

    2. Memory/Class Indicator 5. Guidance Display Shows the number entered in Display the machine's condition. Memory or Class mode. 3. Speed indicator These indicators show the printing speed that is selected. C231/C237/C238...

  • Page 54: Printing Process

    This transfers the ink onto the paper through the drum screen and the master. 6. Paper Delivering: Peels the printed paper with the exit pawl and air knife, and ejects the paper onto the paper delivery table. C231/C237/C238 1-10...

  • Page 55: Mechanical Component Layout

    8. Paper Pick-up Roller 21. DF R0 Roller 9. Paper Table 22. DF Separation Roller 10. Registration Roller 23. DF Document Feed Roller 11. Doctor Roller 24. DF Pick-up Roller 12. Ink Roller 25. DF R2 Roller 13. Press Roller 1-11 C231/C237/C238...

  • Page 56: Electrical Component Layout

    Detects whether the ADF unit is open or closed. Sensors Index No. Name Function Scan Line Sensor Detects when a page is approaching the auto shading position. Document Sensor Detects the presence of a document in the feeder. Not Used C231/C237/C238 1-12...

  • Page 57: Main Body

    ELECTRICAL COMPONENT LAYOUT 1.5.2 MAIN BODY C231V501.WMF C231V503.WMF 1-13 C231/C237/C238...

  • Page 58: Boards

    Transports the printed paper. Clamper Motor Opens or closes the drum master clamper. Main Motor Drives paper feed mechanisms and the drum. Paper Table Motor Raises and lowers the paper table. Ink Pump Motor Drives the ink pump. C231/C237/C238 1-14...

  • Page 59: Solenoids

    Clamper Open Sensor Detects if the clamper is in the open position. Clamper Close Sensor Detects if the clamper is in the closed position. Table Lower Limit Detects when the paper table is at its lower limit Sensor position. 1-15 C231/C237/C238...

  • Page 60: Counters

    Keep track of the total number of copies and Counters masters made. Others Index No. Name Function Paper Feed Clutch Transmits main motor drive to the paper feed roller at the appropriate time. Thermal Head Burns the image onto the master. C231/C237/C238 1-16...

  • Page 61: Drive Layout

    DRIVE LAYOUT 1.6 DRIVE LAYOUT C231V501.WMF 1. Pressure Plate Motor 5. Registration Motor 2. Clamper Motor 6. Paper Table Motor 3. Paper Transport Motor 7. Paper Feed Clutch 4. Main Motor 8. Master Feed Motor 1-17 C231/C237/C238...

  • Page 63: Detailed Section Descriptions

    DETAILED SECTION DESCRIPTIONS...

  • Page 65: Scanner And Optics

    The scanner [B] consists of a contact image sensor and a xenon lamp driver. The scanner home position sensor [H] detects when the scanner returns to the home position after scanning. The platen cover switch [I] detects the cover status. C231/C237/C238...

  • Page 66: Adf Overview

    [G]. The shading plate [F] secures the document at the scan line, ensuring that the document is within the image sensor's range of focus. After scanning, the ADF feeds the document onto the platen cover, and the scanner moves back to its home position. C231/C237/C238...
  • Page 67 SCANNER AND OPTICS C231D502.WMF The document sensor [A] detects when an original is placed in the ADF. The sensor [B] is not used in this unit. The ADF is a common part which is used in other models. C231/C237/C238...

  • Page 68: Contact Image Sensor

    NOTE: Due to the characteristics of the CIS, shadows of a paste-up original tend to appear on copies. To counter this, press the paste shadow erase key on the operation panel to use the paste shadow erase mode. The strength of the paste shadow erase level can be changed with SP no. C231/C237/C238...

  • Page 69: Drive Mechanism

    [D]. The scanner moves along the guide shaft [E]. The springs [F] apply pressure to the contact image sensor [G] to ensure that the distance from the image sensor to the exposure glass surface remains constant during scanning. C231/C237/C238...

  • Page 70: Adf

    SCANNER AND OPTICS C231D505.WMF The ADF motor [A] drives the pick-up roller [B], the feed roller [C], the R0 roller [D], the R1 roller (not shown), and the R2 roller [E]. C231/C237/C238...

  • Page 71: Pick-Up And Feed (Adf)

    [B] into contact with the document. Then the machine begins feeding the original stack, beginning with the top page. After the last page is scanned, the ADF motor reverses briefly to raise the pick-up roller back to the standby position. C231/C237/C238...

  • Page 72: Separation Mechanism (Adf)

    When the feed roller feeds a sheet of paper, both the feed and the separation rollers rotate in the feed-in direction. However, if two or more sheets are between these rollers, the separation roller rotates in the feed-out direction to prevent the lower sheet from being fed into the scanner. C231/C237/C238...

  • Page 73: Error Conditions

    The ADF motor reverses after the last document feeds out of the Misfeed 2 scanner or after a jam is cleared. At this time, the misfeed 2 error condition occurs if the document sensor stays on. C231/C237/C238...

  • Page 74: Image-Processing

    Photo modes. In Letter/Photo and Photo modes, error diffusion processing produces better copy quality halftone images. The halftone processor also includes the A/D conversion function, as well as the image processing functions. The thermal head drive function is built into a chip (GA2) on the MPU. C231/C237/C238 2-10...

  • Page 75: A/D Conversion Processing

    The current is converted to the voltage to be used as high reference data for A/D conversion. In this way, the high reference voltage for A/D conversion is changed sequentially for each pixel depending on the shading distortion data for that pixel. C231/C237/C238 2-11...

  • Page 76: Original Background Correction

    If insufficient voltage is detected, a fixed voltage is used as the white peak level to avoid a faint image copy. C231/C237/C238 2-12...

  • Page 77: Binary Processing

    The output data is still 6-bit. Input Output 6-bit data from the A/D conversion Data P C B Compensation 6-bit data Circuit G a m m a c u r v e selection signal C231D514.WMF C231D515.WMF C231/C237/C238 2-13...

  • Page 78: Mtf Correction

    If the CPU recognizes that the pixel is in a photo area of the image, the pixel is converted to 1-bit using error diffusion. To emphasize characters in a photo original when using Letter/Photo mode, a data compensation curve ( curve) is used to make a darker image. C231/C237/C238 2-14...

  • Page 79: Error Diffusion

    18, is then added to the 3rd pixel. The 4th pixel becomes 52, which is closer to 63 than 0. In such cases, the difference is subtracted (not added) to get the next pixel value. In this example, the difference is 63-52=11, and the next pixel value (30-11) becomes 19. C231/C237/C238 2-15...

  • Page 80: Main Scan Magnification

    As a result, the image is reduced to 80 %. - 140 % Enlargement - Data for 10 pixels of a main scan line are expanded into data for 14 pixels. As a result the image is enlarged with a 140 % magnification ratio. C231/C237/C238 2-16...

  • Page 81: Image Position Adjustment In The Main Scan Direction

    When this mode is selected, the black or white threshold level is slightly lowered. At the same time, the emphasis in the sub-scan direction in the MTF correction process is weakened to make the shadows inconspicuous. The strength of the paste shadow erase level can be changed with SP No. 28. C231/C237/C238 2-17...

  • Page 82: Thermal Head

    Under - 20 C (Normally, this indicates that the thermistor has become open, or a related connector is disconnected.) E - 10 When the pulse width that controls the thermal head energy becomes abnormal, master making stops and this SC lights. C231/C237/C238 2-18...

  • Page 83: Remarks For Handling The Thermal Head

    Adjust the applied voltage to the particular value for the thermal head. - Other Remarks - Avoid using the machine under humid conditions. Moisture tends to condense on the thermal head, causing heating element damage. C231/C237/C238 2-19...

  • Page 84: Master Eject

    [C]. When the drum stops at the master feed position after one and a half turns, the pressure plate drive motor starts turning to compress the used master into the master eject box. C231/C237/C238 2-20...

  • Page 85: Master Clamper Open Mechanism

    This means that the drum guide captures the drum at the master eject position when the master clamper is being opened. When the clamper motor turns on again to close the master clamper, the drum guide also disengages the pin and the drum can now turn. C231/C237/C238 2-21...

  • Page 86: Master Eject Roller Mechanism

    109 encoder pulses after the feed start timing sensor is actuated (this means that the drum is at the master feed position). The master eject sensor [C] is used to detect master eject jams. C231/C237/C238 2-22...

  • Page 87: Pressure Plate Mechanism

    (after returning the pressure plate to the home position). The Empty Master Eject Box indicator lights when the drum returns to the home position at the end of the next master making process. C231/C237/C238 2-23...

  • Page 88: Master Feed

    [E] to the desired length. This model uses a new master setting mechanism. This eliminates need for the operator to manually cut the master, unlike the other models. C231/C237/C238 2-24...

  • Page 89: Master Feed Mechanism

    The intermittent rotation keeps a buckle in the master above the master feed guide to absorb shocks from the wrapping operation. The tension roller [D] is pressed against the guide plate to keep the master under tension during the master wrapping operation. C231/C237/C238 2-25...

  • Page 90: Master Clamper Operation And Tension Roller Release Mechanism

    To close the master clamper, the clamper motor reverses. NOTE: The clamper open and close sensors identifies the link [B] position. Refer to the Master Eject section for details. C231/C237/C238 2-26...

  • Page 91: Cutter Mechanism

    After the master cut operation, the drum starts turning again to wrap the remaining part of the master around the drum. The leading edge of the master that was cut remains at the cutting position, ready to make the next master. C231/C237/C238 2-27...

  • Page 92: Drum

    (image) in the master [F], which was made by the thermal head. The drum is driven by the main motor and turns only clockwise (as viewed from the operator side). The motor speed and the drum stop positions are controlled by monitoring the motor encoder. C231/C237/C238 2-28...

  • Page 93: Drum Drive Mechanism

    [E] and 2nd feed timing sensor [F] which are used to send the CPU (on the MPU) the paper jam detection timing signals of the paper exit and the registration area. (The actual jam checking is performed by the paper exit sensor and registration sensor.) C231/C237/C238 2-29...

  • Page 94: Ink Supply Mechanism

    Ink drops through the holes in the drum shaft [A] and onto the ink roller [B]. NOTE: There are 4 holes in the shaft for the B4 size drum models, and two holes for the Legal and A4 drum versions. C231/C237/C238 2-30...

  • Page 95: Ink Roller Mechanism

    However, during the printing process, the ink on the ink roller is applied to the paper through the holes in the screens and the master. This happens when the press roller [F] located underneath the drum moves upward to press the paper, the drum screens and the master against the ink roller. C231/C237/C238 2-31...

  • Page 96: Ink Supply Control

    40 rotations, to supply ink inside the drum. The ink roller blades [D] located on both ends of the ink roller are used to scrape off the built-up ink on the ends of the ink roller. C231/C237/C238 2-32...

  • Page 97: Detection Of Masters On The Drum

    When there is no master on the drum, the black patch [A] is exposed. The black patch does not reflect light back to the sensor. Because of this, the master eject process is skipped when a new master is made. C231/C237/C238 2-33...

  • Page 98: Paper Feed

    The registration roller synchronizes the paper feed timing with the master on the drum. The registration roller starts rotating after the paper has come into contact with the rollers and has been aligned. C231/C237/C238 2-34...

  • Page 99: Paper Feed Mechanism

    (not shown), and is then transported to the registration roller. A one-way clutch is installed in the paper feed roller so that after the electromagnetic clutch is de-energized, it does not disturb the paper transportation. C231/C237/C238 2-35...
  • Page 100 By loosening then moving the screw [C]up or down, the spring [D], which applies pressure to the friction pad block [E], can be increased or decreased. NOTE: The default position of the screw [C] is at the lower-most position. C231/C237/C238 2-36...

  • Page 101: Registration Roller Mechanism

    The stepper motor rotation speed depends on the selected printing speed. By pressing the image position keys on the operation panel, the registration motor start timing is changed. After the printing paper is caught between the drum and the press roller, the stepper motor stops. C231/C237/C238 2-37...

  • Page 102: Registration Roller Up/Down Mechanism

    When the high point of the cam [A] on the drum drive gear reaches the cam follower [B], the shaft [C] rotates clockwise (as seen from the operation side) to raise the upper registration roller [D] from the lower registration roller (not shown). C231/C237/C238 2-38...

  • Page 103: Printing Pressure Mechanism

    After printing is finished, the solenoids are de-energized and the stoppers are returned by the tension of the springs. Before the drum returns to the home position, the brackets are locked by the stoppers again when the cams push the cam followers. C231/C237/C238 2-39...

  • Page 104: Paper Table Mechanism

    When the tray lowers, the lower limit position is detected by the lower limit sensor [F], which is located beside the paper table motor. Paper End Detection Mechanism The paper end sensor [G] located under the paper table is used to detect when the paper stack on the table has run out. C231/C237/C238 2-40...

  • Page 105: Paper Table Side Fence Mechanism

    Paper Table Side-to-Side Shift Mechanism The paper table shifting dial [C] shifts the image on the paper. When the dial is turned, the whole paper table moves towards the front or the rear of the machine. C231/C237/C238 2-41...

  • Page 106: Side Fence Friction Pads

    [A] can be installed to apply additional stopping pressure to the paper. These are especially useful when thin paper is used. The user can install the friction pads if they are using thin paper. C231/C237/C238 2-42...

  • Page 107: Paper Delivery

    The exit pawl [A] and the air knife [B] separate the paper from the drum. The paper is transported to the delivery table by the delivery unit, which includes rubber belts and a vacuum fan motor. The paper exit sensor [C] (a reflective photosensor) is used to detect paper delivery jams. C231/C237/C238 2-43...

  • Page 108: Paper Delivery Unit Drive Mechanism

    C231D550.WMF The vacuum fan inside the unit holds the paper against the transport belts [A] to deliver the paper onto the delivery table. The transport belts are driven by an independent dc motor (the paper delivery motor [B]). C231/C237/C238 2-44...

  • Page 109: Paper Separation From Drum

    The air knife fan motor [C] starts blowing air when either the print start key is pressed or the master cutting cycle is finished. The paper passes under the exit pawl and is delivered onto the delivery table. The motor air knife stops after the last sheet of paper is fed out. C231/C237/C238 2-45...

  • Page 110: Exit Pawl Drive Mechanism

    [D] and held in the lower position. Therefore, after printing finishes, the cam follower is out of contact with the cam, and the exit pawl moves away from the drum to its normal position. C231D562.WMF C231/C237/C238 2-46...

  • Page 111: Error Detection

    4) If the master eject sensor is actuated when the pressure plate is returned to the home position. This happens when the trailing edge of the master sticks on the pressure plate and is pulled back to the master eject rollers. C231/C237/C238 2-47...

  • Page 112: Master Feed Jam Detection

    [A] does not detect a master on the drum, the jam indicator on the operation panel will light. (The master eject position sensor [B] is used to identify when the drum is at the home position.) C231/C237/C238 2-48...

  • Page 113: Paper Feed Jam Detection

    (not shown). The 2nd feed timing sensor [A] and the paper exit timing sensor [B] are used as the drum position sensors. The timing chart on the next page shows the jam detection timing. C231/C237/C238 2-49...
  • Page 114 CPU will stop the next paper from being fed. When the 2nd feed timing sensor is actuated: 1. If the registration sensor is activated, a registration failure is detected. 2. If the registration sensor is not activated, a paper wrap jam is detected. C231/C237/C238 2-50...
  • Page 115 INSTALLATION...

  • Page 117: Power Connection

    2. Make sure that the wall outlet is near the machine and easily accessible. 3. Make sure the plug is firmly inserted in the outlet. 4. Voltage must not fluctuate more than 10%. 5. Avoid multi-wiring. 6. Do not pinch the power cord. C231/C237/C238...

  • Page 118: Paper Feed

    Place the machine near a power source, providing clearance as shown below. More than 20 cm (7.9") Paper Paper Delivery Feed 59 cm Table (23.3") Table More than 60 cm (23.7”) More than More than 60 cm 60 cm 119 cm (46.9") (23.7”) (23.7”) C231I510.WMF C231/C237/C238...

  • Page 119: Installation Procedure

    Make sure that you have all the accessories listed below: Master Spool................2 Paper Feed Side Pad.............. 2 Operating Instructions (except the Ricoh European version).. 1 NECR (Ricoh version only) ............. 1 Stabilizer brackets (3 brackets)..........1 set Model Name Plates (OEM version only) ......... 1 set...

  • Page 120: Installation Procedure

    4) Lock the casters of the table as shown [B], to prevent the machine from moving (e.g. when the drum is set). 5) Set the stabilizer brackets [D], and [F] under the optional table and connect 2 stabilizer brackets [D] and [F] by the stabilizer bracket [E]. C231/C237/C238...
  • Page 121 INSTALLATION PROCEDURE C231I523.WMF C231I532.WMF C231I531.WMF 2. Remove the tape and string securing the covers and units as shown above. 3. Open the paper delivery table. C231/C237/C238...
  • Page 122 INSTALLATION PROCEDURE C231I526.WMF 4. Open the scanner unit, then the upper cover [A], and take out the accessory bag [B]. C231I527.WMF 5. Insert both spools [C] into the new master roll. 6. Set the master roll as shown. C231/C237/C238...
  • Page 123 8. Insert the leading edge of the master roll under the platen roller. The arrows [B] indicate the correct position of the master leading edge. 9. Close the platen roller unit. 10. Close the upper cover and scanner unit. C231/C237/C238...
  • Page 124 CAUTION: Make sure that the wall outlet is near the machine and C231I524.WMF easily accessible. 16. Turn on the main switch. 17. Press the “Economy Mode” key while holding down the “0” key, to supply ink in the drum. 18. Make test copies. C231/C237/C238...

  • Page 125: Auto Document Feeder (Option)

    Lower Rear Cover..................1 Connector Cover..................1 ADF Roller Assembly................. 1 Original Table..................... 1 Platen Cover Stopper................. 1 M3 x 8 Screws (to install the lower front/rear covers) ........ 4 M3 x 6 Sunken Screws (to install the upper front/rear covers)....2 C231/C237/C238...

  • Page 126: Installation Procedure

    2. Remove the small cover [B] (1 screw). Retain the screw [C] for step 9. 3. Mount the ADF unit [D]. NOTE: When you mount the ADF unit [D] onto the scanner unit, make sure to insert the tab [E] as shown above. C231/C237/C238 3-10...
  • Page 127 ADF lower rear cover [F]. Use care installing the ADF lower rear cover because the rib [I] in the cover may interfere with the movement of the switch. 3) The connector [J] is not used and remains open. C231/C237/C238 3-11...
  • Page 128 7. Secure the grounding wire [M] (1 screw). 8. Pass the two harnesses through the cutout in the ADF lower rear cover, and then connect the harnesses to the main body. 9. Attach the connector cover [N] with the screw [C] removed in step 2. C231/C237/C238 3-12...
  • Page 129 12. Install the ADF roller assembly [Q]. 13. Attach the original table [R], then the platen cover stopper [S]. NOTE: To enable the use of the ADF, access the SP mode and set SP No. 2 to "1". Refer to section 4.4.2. C231/C237/C238 3-13...

  • Page 130: Tape Marker (Option)

    Check the quantity and condition of the accessories in the box against the following list: 1. Knob Screw (For models #C210, C217, C218, C219, C222, C223, C225, C228 and C231 only) ....2 2. Screw M4 x 25 (For models # C211, C212, C213, C214, C216, C224, and C226 only)......2 3.

  • Page 131: Installation Procedure - For C231 -

    INSTALLATION PROCEDURE Installation Procedure - For C231 - C231I536.WMF C231I533.WMF 1. Turn off the main switch and unplug the power cord. 2. Remove the paper delivery table (2 screws). 3. Remove the paper delivery plate (4 screws). 4. Cut the cap [A] off the rear cover with pliers.
  • Page 132 11. Turn on the tape marker switch [F]. C231I520.PCX 12. Press the tape cut button [G] to cut off the leading edge of the tape. 13. Check the tape marker operation using the Memory/Class modes of the main body. C231I521.PCX C231/C237/C238 3-16...

  • Page 133: Color Drum (Option)

    3.2.4 COLOR DRUM (OPTION) C231I534.WMF C231I537.WMF There are three types of color drum units: B4 Size: For the C231 B4 model Legal Size: For the C231 Legal model A4 Size: For the C231 A4 model 1. Remove the protective sheet [A] from the drum unit.

  • Page 134: Interface Board (Option)

    5. Connect the harness [C] to CN101 of the interface board, and secure it to the connector bracket [D] using two lock screws and washers. 6. Remove the communications port cover plate from the upper rear cover. 7. Reinstall the MPU cover. 8. Reinstall the upper rear cover. C231/C237/C238 3-18...
  • Page 135 SERVICE TABLES...

  • Page 137: Service Tables

    Be careful to install the rollers the correct way around. Do not touch the surface of the roller with bare hands. 3. Paper Guide Plate Position for Registration Roller Be sure to adjust the paper guide plate position once it is removed. (See "6.7.4 Registration Roller Clearance Adjustment.") C231/C237/C238...

  • Page 138: Drum And Drum Drive Section

    When removing the ink pump, do not lose the small metal valve. When reinstalling the pump, first set the valve on the joint side as shown, then install the ink pump on the two joints. (See "6.9.6 Ink Pump Removal and Plunger Position Adjustment") C231/C237/C238...

  • Page 139: Paper Delivery Section

    When replacing the power supply unit, be sure to adjust the voltage supplied to the thermal head (See “6.5.3 Thermal Head Voltage Adjustment”). 4. Sensor Adjustments Adjustment is needed for the master end sensor. For details, see 6.5.4 Master End Sensor Adjustment. C231/C237/C238...

  • Page 140: Dip Sw, Led, Vr, Tp, And Fuse Tables

    Master End Sensor Output Voltage TP109 GND-a TP110 -12V 4.2.2 POTENTIOMETERS Usage VR101 Ink Detection Adjustment VR103 Master End Sensor Adjustment Power Supply Unit Usage Thermal Head Voltage Adjustment 4.2.3 LED'S LED # Low Ink Condition Sufficient Ink Condition C231/C237/C238...

  • Page 141: Fuses

    Air Knife Fan Motor, Front/Rear Pressure Release Solenoid, Vacuum Fan Motor 24VDC Ink Pump Motor, Master Eject Motor, Optional Key Counter, Master Counter, Paper Counter, Contact Image Sensor 6.3 A 24VDC Main Motor Control Board 24VDC Optional Tape Dispenser C231/C237/C238...

  • Page 142: Service Call Codes

    E-12 Pressure Plate Motor Failure Mechanical interference with The pressure plate home position sensor the pressure plate drive signal is not detected within 4 seconds Pressure plate motor after the pressure plate motor turns on. Pressure plate HP sensor C231/C237/C238...
  • Page 143 The scanner cannot leave the home position within 4 seconds of power on. When the scanner cannot return to the home position within 2 seconds of leaving. E-14 IPU error Signal transmission error (from the IPU) occurred in the MPU. C231/C237/C238...

  • Page 144: Service Program Mode

    After you enter SP mode with Method 3, you can leave it by turning the main switch off then on again. 2. The following is displayed on the LCD when the SP mode is accessed. SP-MODE PROGRAM No. 0 C231/C237/C238...

  • Page 145: Service Program Mode Access Procedure (For Users)

    3. Using the number keys, enter the desired SP mode number (listed in the service program table), then press the Enter (#) key. 4. Do the following procedure (‘Change Adjustment Values or Modes’). To cancel the SP mode, press the Clear Modes key. C231/C237/C238...

  • Page 146: Change Adjustment Values Or Modes

    NOTE: Use the Memory/ Class key to toggle between + and -. 3. Press the Enter (#) key to store the desired value or mode. 4. To cancel the SP mode, press the Clear Modes key. C231/C237/C238 4-10...

  • Page 147: Service Program Table

    Panel machine. Set Drum Selects the drum size that 0:B4 Never change Size matches the machine. the setting. 1:A4 NOTE: This function is for 2:LG production line use only. Changes the LCD contrast. 17 to 24 Contrast Adjust C231/C237/C238 4-11...
  • Page 148 2: Lighter operation panel. The shadows of pasted-up edges on originals lighten. *29 Pht Determines whether the 0: Correc- Background original background tion is Correct correction is done in Photo not done. mode. 1: Correc- tion is done. C231/C237/C238 4-12...
  • Page 149 Class key for "+" or "-" ADF Center Adjusts the center position -1.9 to +1.9 For the ADF Adjust of copies in the ADF mode. mode 0.1 mm steps Use the Memory/ Class key for "+" or "-" See Remark C231/C237/C238 4-13...
  • Page 150 Displays the total number of Feed Jam original jams. Paper Feed Displays the total number of Jam (B) paper feed jams. Paper Wrap Displays the total number of Jam (E/BE) times that paper has accidentally wrapped around the drum. C231/C237/C238 4-14...
  • Page 151 Specifies whether the 0: No See Remark 5 Memory/ Memory/Class mode is 1: Yes Class used. Thermal Select "1" to carry out the 0: Off See the Test Head Test thermal head test. 1: On Pattern Image Mode, section C231/C237/C238 4-15...
  • Page 152 117 Color Drum Displays the total number of Count prints made using the color drum. 119 CLR All Total Clears the following 0: No Count counters: 1: Yes SP Nos. 111, 115, 116, and 117. C231/C237/C238 4-16...

  • Page 153: Switches

    0: No If "0" is Detection platen cover sensor 1: Yes selected, "Set detection. the original" is displayed each time at master making. 150 Control ROM Displays the ROM part P/No. YYYY/MM/DD number and the ROM manufacturing date. C231/C237/C238 4-17...
  • Page 154 Enter the original size (in (100 to 0 x 0 Same as above "mm") that you want to use 258) x (100 with the Margin Erase to 364) mm mode. (4.0 to 10.0) x (4.0 to 14.3 ) inch C231/C237/C238 4-18...
  • Page 155 Enter the original size (in (100 to 0 x 0 Same as above "mm") that you want to use 258) x (100 with the Margin Erase to 364) mm mode. (4.0 to 10.0) x (4.0 to 14.3 ) inch C231/C237/C238 4-19...

  • Page 156: Remarks

    X mm +X: Moves up X mm Printing Position -X: Moves down X mm Printing Position NOTE: When adjusting the scanner image position, input "0" first: Example) X = 0.9 mm "0", "9", then press the # key. C231/C237/C238 4-20...
  • Page 157 (SP85) or the Start key is pressed to make a new master (SP52). Selecting SP52 affects the master processing time, so this is not enabled as the default. SP85 is enabled as the default. C231/C237/C238 4-21...
  • Page 158 If "1" is selected in this mode, the machine stops for a while (this interval is the same as when the tape marker is operating). Then it continues with the next print (or master making) job. C231/C237/C238 4-22...

  • Page 159: Input/Output Check Mode

    6. For the Output Check mode, press the Start key to turn on the component. 7. Press the Enter (#) key to return the display to the initial input or output check menu. 8. Press the Clear Modes key to leave the SP mode. C231/C237/C238 4-23...

  • Page 160: Input Check Table

    In-44 SN: Scanner Scanner Home Position Sensor Home Position In-45 SN: Platen Set Platen Cover Sensor In-47 SW: Plotter Cover Master Making Unit Cover Safety Switch In-51 SW: Cover Open Door Safety Switch In-52 Scanner Unit Safety Switch C231/C237/C238 4-24...
  • Page 161 SN: Master Eject Master Eject Position Sensor Position In-59 SN: Drum Set When the drum connector is connected In-62 SN: Clamper Close Clamper Close Sensor In-65 SN: Clamper Open Clamper Open Sensor In-66 SN: Registration Paper Registration Sensor In-68 C231/C237/C238 4-25...

  • Page 162: Output Check Table

    MOTOR: Original Feed Turns on the ADF motor. Out-33 MOTOR: Master Feed Turns on the master feed motor at high speed. High Speed Out-34 MOTOR: Master Feed Turns on the master feed motor at low speed. Low Speed Out-35 C231/C237/C238 4-26...
  • Page 163 MOTOR: Pressure Turns on the pressure plate motor and moves Plate ON the plate to the lower limit position. Out-46 MOTOR: Pressure Turns on the pressure plate motor and moves Plate OFF the plate to the home position. Out-47 C231/C237/C238 4-27...

  • Page 164: Test Pattern Image Mode

    If the printout is abnormal, a Part B component is defective. X e n o n L a m p T h e r m a l M P U H e a d S c a n n e r Master Feed Motor Motor C231M500.WMF C231/C237/C238 4-28...

  • Page 165: User Code Mode

    3. Press the Start key to start printing. NOTE: The user code is reset if the Clear Modes key and the Clear/Stop key are pressed together. The user then has to input a user code to use the machine. C231/C237/C238 4-29...
  • Page 166 INPUT/OUTPUT CHECK MODE THIS PAGE IS INTENTIONALLY LEFT BLANK C231/C237/C238 4-30...

  • Page 167: Rom History

    However, once any communication errors occur, there is possibility that this problem could occur. With the new firmware The C231 can send the response signal properly even if a communication error occurs. - Error in the User Code mode -...
  • Page 168 C231 FIRMWARE MODIFICATION HISTORY Rev. 11/2000 C231 FIRMWARE MODIFICATION HISTORY REV. SERIAL DESCRIPTION OF MODIFICATION LEVEL NUMBER May 1999 Main ROM: SP46 ‘Set Fine Mode Default‘ has been added. Production By switching this item to ‘1’, the fine mode is C2315165 A selected at power-up.

  • Page 169: Preventive Maintenance

    PREVENTIVE MAINTENANCE...

  • Page 171: Maintenance Table

    Press Roller Alcohol Paper Feed Clutch Feed Roller and Motor Oil Transport Belt (SAE #20) Roller Bushings Feed Drive Gears Grease (Alvania Paper Delivery Transport Belts Paper End Sensor Dry Cloth Registration/Exit Dry Cloth Sensors Registration Roller Dry Cloth C231/C237/C238...

  • Page 172: Main Drive

    Motor Oil Bushing (SAE #20) In/Outside of Drum Alcohol Ink Nozzle Alcohol Others Main Drive Timing Belt Tension Press Roller Release Lever Position ADF (Option) DF Pick-up, Dry Cloth Reverse, Feed Rollers DF R1, R2, R3 Dry Cloth Rollers C231/C237/C238...
  • Page 173 REPLACEMENT AND ADJUSTMENT...

  • Page 175: Rear Covers

    A: ADF Roller Assembly B: ADF Upper Front Cover (1 screw, 1 hook) C: ADF Upper Rear Cover (1 screw, 2 hooks) C231P501.WMF Remove the connector cover, then remove the harness and ground wire. D: Connector Cover (1 screw) C231/C237/C238...

  • Page 176: Operation Panel

    C231P502.WMF E: ADF Lower Front Cover (2 screws, 1 grounding wire) F: ADF Lower Rear Cover (2 screws, 1 grounding wire) G: ADF Unit (2 connectors) 6.1.2 OPERATION PANEL C231P503.WMF A: Operation Panel Assembly (3 tapping screws, 1 connector) C231/C237/C238...

  • Page 177: Platen Cover And Upper Covers

    6.1.3 PLATEN COVER AND UPPER COVERS C231P504.WMF A: Platen Cover (3 tapping screws) B: Horizontal Upper Cover (2 silver screws) C: Vertical Upper Cover (1 silver screw, 1 screw) 6.1.4 TOP COVER AND EXPOSURE GLASS C231P505.WMF A: Top Cover (2 screws) B: Exposure Glass C231/C237/C238...

  • Page 178: Other Covers

    EXTERIOR COVER REMOVAL 6.1.5 OTHER COVERS C231R532.WMF A: Front cover (5 screws). B: Front door (2 screws). NOTE: The two screws are different in shape, as shown. C: Operation panel under cover (2 screws). C231/C237/C238...
  • Page 179 EXTERIOR COVER REMOVAL C231R533.WMF D: Rear cover (6 screws). E: Rear upper cover (2 screws). C231R534.WMF F: Left upper cover (2 screws). C231/C237/C238...

  • Page 180: Copy Image Adjustment

    7. Make a copy in ADF mode and repeat the same steps using SP38 (ADF Scan Line Adjustment). The specification in ADF mode is 0 2.5 mm. NOTE: SP38 changes the scanning start timing in the ADF mode, changing the leading edge registration in the ADF mode. C231/C237/C238...

  • Page 181: Side-To-Side Registraion Adjustment

    6. Re-measure the side-to-side registration to ensure it is within specifications. If the registration meets specifications, go to the next step. 7. Make a copy in ADF mode and repeat the same steps using SP37 (ADF Center Adjustment - ADF Mode). The specification in ADF mode is 0 2.5 mm. C231/C237/C238...

  • Page 182: Vertical Magnification Adjustment

    6. Check the vertical magnification again to ensure it is within specifications. If the vertical magnification meets specifications, go to the next step. 7. Make a copy in ADF mode and repeat the same steps using SP 36 (ADF Magnification Adjustment). C231/C237/C238...

  • Page 183: Leading Edge Blank Margin Adjustment

    3. Access SP33 (Lead edge Adjustment). 4. Adjust the value. 5. Exit the SP mode and make a copy. 6. Check the leading edge blank margin again to ensure it is within specifications. C231/C237/C238...

  • Page 184: Mpu Replacement

    C229R503.WMF The following adjustments are needed even when you use the backup RAM from the old MPU on the new one: 1) Ink detection adjustment (Refer to section 6.9.5) 2) Master end sensor adjustment (Refer to section 6.5.4) C231/C237/C238 6-10...

  • Page 185: Original Feed Section

    ORIGINAL FEED SECTION 6.4 ORIGINAL FEED SECTION 6.4.1 ADF ROLLER ASSSEMBLY C231P507.WMF A: ADF Roller Assembly 6.4.2 PICK-UP ROLLER C231P508.WMF A: Pick-up Roller (2 clips, 2 gears) C231/C237/C238 6-11...

  • Page 186: Feed Roller

    ORIGINAL FEED SECTION 6.4.3 FEED ROLLER C231P509.WMF A: Feed Roller (1 clip, 1 gear, 2 springs, 2 E-rings, 1 washer) 6.4.4 SEPARATION ROLLER C231P510.WMF A: Upper Guide Plate (2 tapping screws) B: Separation Roller (1 clip) C231/C237/C238 6-12...

  • Page 187: Adf Motor And Covers

    C: ADF Lower Rear Cover (2 screws) D: Connector Cover (1 screw) E: ADF Motor (2 screws) 6.4.6 R0 AND R1 ROLLERS C231P512.WMF A: R0 Roller (1 E-ring, 1 gear, 2 bushings) B: R1 Roller (1 E-ring, 1 gear, 2 bushings) C231/C237/C238 6-13...

  • Page 188: R2 Roller

    ORIGINAL FEED SECTION 6.4.7 R2 ROLLER C231P513.WMF A: ADF Release Lever B: Timing Belt C: Tensioning Roller Ass’y (1 screw) C231P514.WMF Remove the R2 roller [D] while lowering the guide plate [E]. C231/C237/C238 6-14...

  • Page 189: Document Sensor

    ORIGINAL FEED SECTION 6.4.8 DOCUMENT SENSOR C231P515.WMF A: Document Sensor B: This sensor has no function 6.4.9 SCAN LINE SENSOR C231P516.WMF A: Scan Line Sensor (1 screw) C231/C237/C238 6-15...

  • Page 190: Cover Sensors

    ORIGINAL FEED SECTION 6.4.10 COVER SENSORS C231P517.WMF A: ADF Cover Switch C231P518.WMF A: Upper Rear Cover (1 screw, 2 hooks) B: ADF Switch C231/C237/C238 6-16...

  • Page 191: Scanner

    MASTER FEED SECTION 6.5 MASTER FEED SECTION 6.5.1 MASTER MAKING UNIT REMOVAL C231R521.WMF First, turn off the main switch and disconnect the power plug. Then open the scanner unit. A: Rear upper cover (2 screws) B: Disconnect 6 connectors C231/C237/C238 6-17...
  • Page 192 MASTER FEED SECTION C231R522.WMF A: Master making unit (2 screws) C231/C237/C238 6-18...

  • Page 193: Thermal Head Removal

    6. Remove the thermal head connector (2 connectors).(See the illustration on the following page.) 7. Unhook the lock pawls of the thermal head (3 lock pawls). Make sure to unhook the two rear sides (the drum side) first. 8. Remove the thermal head. C231/C237/C238 6-19...

  • Page 194: Installation

    Make sure that all protrusions are properly fit into the springs. With the master making unit removed from the machine, you can look from the tension roller side to check if the springs are fitted properly. C231/C237/C238 6-20...

  • Page 195: Thermal Head Voltage Adjustment

    4. Read the voltage value on the decal on the thermal head.(not shown) 5. Connect the power plug, and turn on the main switch to access SP mode, #131, output check mode. 6. Select the thermal head power supply output check mode 41. C231/C237/C238 6-21...
  • Page 196 9. Turn VR2 [C] so that the value becomes between "+0" and "-0.1" volts of the voltage value that is printed on the thermal head decal. CAUTION Never turn VR2 [C] clockwise rapidly while the connector is connected. The thermal head will be damaged if too much voltage is supplied suddenly. C231/C237/C238 6-22...

  • Page 197: Master End Sensor Adjustment

    8. Turn VR103 [A] so that the sensor input voltage becomes 1.5 0.1 volts. 9. Remove the solid black pattern from the master end sensor. 10. Install a new master roll. 11. The sensor input voltage is displayed on the operation panel. Check that it is 0.1 volts. C231/C237/C238 6-23...

  • Page 198: Master Eject Unit

    6.6 MASTER EJECT SECTION 6.6.1 MASTER EJECT UNIT REMOVAL C231R523.WMF 1. Turn off the main switch and disconnect the power plug. 2. Remove the 2 screws [A]. 3. Pull out the master eject unit. 4. Remove the 2 screws [B]. C231/C237/C238 6-24...

  • Page 199: Paper Feed Section

    NOTE: Install the friction pad base in the proper direction, as shown. Also, be sure that the friction pressure spring is properly set into the hole in the friction pad base [D] and over the projection [E] in the bottom hold. Otherwise, paper misfeed will occur. C231/C237/C238 6-25...

  • Page 200: Paper Separation Pressure Adjustment

    [A]. Moving the screw up Increases the paper separation pressure Moving the screw down Decreases the paper separation pressure Tighten the screw after the adjustment. NOTE: As the default, the screw is set at the lowest position. C231/C237/C238 6-26...

  • Page 201: Paper Feed Pressure Adjustment

    NOTE: As the default, the gap [A] is less than 0.3 mm. 2. Adjust the paper feed pressure by moving the spring anchor [C] (loose the screw [A]). Moving it towards the front Increases the feed pressure Moving it towards the rear Decreases the feed pressure C231/C237/C238 6-27...

  • Page 202: Registration Roller Clearance Adjustment

    [C]. It should be 0.2 to 0.4 mm. 4. If it is not correct, adjust the position with the screw [D] after loosening the screw [D] and [E]. 5. Repeat steps 3 and 4 for the rear side of the machine. C231/C237/C238 6-28...

  • Page 203: Printing Section

    4. Loosen the screw and slide the bracket [A]. 5. Remove the press roller [B]. CAUTION: The length of the exposed shaft on the rear and front differs. During installation, ensure that the longer exposed shaft [C] is positioned towards the rear of the machine. C231/C237/C238 6-29...

  • Page 204: Press Roller Lock Lever Adjustment

    NOTE: To identify 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 long hole [A] in the bracket when the drum is in the correct position. C231/C237/C238 6-30...
  • Page 205 7. If it is not correct, adjust the position of the press roller lock lever after loosening the two screws [D]. 8. Repeat steps 6 and 7 for the press roller lock lever located on the operation side of the machine. C231/C237/C238 6-31...

  • Page 206: Printing Pressure Adjustment

    2. Remove the paper delivery cover. (See 6.10.1 Vacuum Unit Removal.) 3. Adjust the distance [A] to 10 0.5 mm by turning the adjusting bolt [B]. 4. Repeat the same procedure for the printing pressure spring at the non- operation side of the machine. C231/C237/C238 6-32...

  • Page 207: Drum And Drive Section

    1. Turn off the main switch and disconnect the power plug. 2. Remove the drum unit. 3. Remove the drum upper bracket (4 screws).(not shown) 4. Release the stopper [A], then rotate the drum until the master clamper faces upward. 5. Remove the cloth screen [B] (4 screws). C231/C237/C238 6-33...

  • Page 208: Remarks For The Cloth Screen Installation

    Make sure that the correct side of the screen is facing up. In addition, make sure that the stays for [C] securing the cloth screen are positioned correctly. (Refer to the lower right illustration.) C231/C237/C238 6-34...
  • Page 209 When replacing the cloth screen, spread the screen around the metal screen while strongly pulling the stay [A]. 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. C231/C237/C238 6-35...

  • Page 210: Drum Master Clamper And Metal Screen Removal

    2) Use a cloth dampened with water to clean the inside of the clamping plate [C]. Never use alcohol or other solvents. The clamping force of the magnet will be weakened. C231/C237/C238 6-36...
  • Page 211 DRUM AND DRIVE SECTION C231R531.WMF 6. Peel off the tape [A]. 7. Remove the metal screen (12 screws). C231/C237/C238 6-37...

  • Page 212: Remarks For Drum Screen Installation

    0.3 mm or less, as shown in the upper illustration. Position the springs [B] and [D] (one each at the front and rear) as shown when reinstalling the drum master clamper [C]. Do not scratch the cloth screen or metal screen. C231/C237/C238 6-38...

  • Page 213: Ink Roller Unit Removal

    4. Disconnect the connectors [A] after removing the connector cover [B] (2 screws, 2 connectors). 5. Remove the ink socket [D] and the hexagon screws [C] (1 screw, 3 hexagon screws). 6. Remove the front drum bracket [E] and the front drum flange [F]. C231/C237/C238 6-39...
  • Page 214 8. Remove the drum rear stopper [H] (1 hexagon screw). 9. Remove the drum rear flange [I]. NOTE: If the ink detection off mode has been selected with SP 140, do not forget to return it to the default (detection on). C231/C237/C238 6-40...

  • Page 215: Doctor Roller Gap Adjustment

    2. Turn off the main switch and disconnect the power plug. 3. Remove the drum unit, then remove the ink roller unit. (See 6.9.3 Ink Roller Unit Removal.) 4. Wipe off the ink around the ink roller and doctor roller. C231/C237/C238 6-41...
  • Page 216 [C] for the front and for the rear. NOTE: Make sure to repeat the adjustment for both ends of the rollers. NOTE: If the ink detection off mode has been selected with SP 140, do not forget to return it to the default (detection on). C231/C237/C238 6-42...

  • Page 217: Ink Detection Adjustment

    In such a case, LED101 on the MPU will light to warn of this condition. NOTE: If the ink detection off mode has been selected with SP 140, do not forget to return it to the default (detection on). C231/C237/C238 6-43...

  • Page 218: Position Adjustment

    1. Turn off the main switch and disconnect the power plug. 2. Remove the drum unit. 3. Remove the drum screen. (See 6.9.2 Drum Master Clamper and Metal Screen Removal.) 4. Remove the ink supply motor [A] (2 screws, 1 connector). C231/C237/C238 6-44...
  • Page 219 - Remark for the ink pump removal - When removing the ink pump, do not lose the small metal valve [F]. When reinstalling the pump, first set the valve on the joint side as shown, then install the ink pump on the two joints. C231R580.WMF C231/C237/C238 6-45...

  • Page 220: Main Drive Timing Belt Tension Adjustment

    PURPOSE: After the timing belt is replaced, correct belt tension must be applied using the procedure below. C231R539.WMF 1. Turn off the main switch and disconnect the power plug. 2. Remove the rear cover (5 screws). (See 6.1.5 Other Covers.) 3. Loosen the screws [A], [B], and [C]. C231/C237/C238 6-46...
  • Page 221 7. Insert a screwdriver through spaces [D] and [E]. NOTE: This is to set the shaft [A] in line. 8. Tighten the screws [A], [B], and [C],shown on page 6-46 in the sequence listed. 9. Remove the screwdriver. C231/C237/C238 6-47...

  • Page 222: Main Motor Pulley Position Adjustment

    DRUM AND DRIVE SECTION 6.9.8 MAIN MOTOR PULLEY POSITION ADJUSTMENT 0.1 mm C231R546.WMF After installing the pulley onto the main motor shaft, refer to the above illustration for the correct position of the pulley. C231/C237/C238 6-48...

  • Page 223: Vacuum Unit Removal

    1. Turn off the main switch and disconnect the power plug. 2. Remove the paper exit table (2 screws).(not shown) 3. Remove the paper delivery cover [A] (4 screws). 4. Disconnect the 3 connectors [B]. 5. Remove the vacuum unit [C] (2 screws). C231/C237/C238 6-49...

  • Page 224: Delivery Belt/Paper Exit Sensor Removal

    2. Remove the vacuum unit. (See 6.10.1 Vacuum Unit Removal.) 3. Remove the belt tension roller [A]. 4. Remove the delivery belts [B]. 5. Remove the vacuum motor assembly [C] (4 screws, 1 connector). 6. Remove the paper exit sensor [D] (1 connector). C231/C237/C238 6-50...

  • Page 225: Vacuum Motor Removal

    PAPER DELIVERY SECTION 6.10.3 VACUUM MOTOR REMOVAL C231R552.WMF 1. Turn off the main switch and disconnect the power plug. 2. Remove the vacuum unit. (See 6.10.1 Vacuum Unit Removal.) 3. Remove the vacuum motor [A] (3 screws, 1 connector). C231/C237/C238 6-51...

  • Page 226: Exit Pawl Clearance Adjustment

    It should be between 1.0 and 1.3 mm. 6. If the clearance is not correct, loosen the lock nut. Then adjust the clearance by turning the bolt [F]. 7. Reposition the bracket [C] and tighten the screws [A] and [B]. C231/C237/C238 6-52...

  • Page 227: Exit Pawl Drive Timing Adjustment

    1. Turn off the main switch and disconnect the power plug. 2. Remove the front cover (4 screws) and the rear cover (6 screws). 3. Turn the drum manually until the recess in the drum drive gear meets the long positioning hole [A] in the bracket, as shown. C231/C237/C238 6-53...
  • Page 228 7. Retighten the two screws while pushing the cam follower against the cam face. Make sure that the gap [E] is 0 or less than 0.5 mm. NOTE: Do not push the cam followers too strongly against the cam. 8. Reposition the bracket [C] and tighten the screws [A] and [B]. C231/C237/C238 6-54...
  • Page 229 TAPE MARKER C532...

  • Page 231: Specifications

    OVERVIEW 1. SPECIFICATIONS Tape Feed Length: 250 mm (9.8") Tape Feed Speed: 100 mm/s (3.9"/s) Tape Size: Outside Diameter 80 mm (3.1") or smaller Inside Diameter 20 mm (0.8") or larger Width 17 mm to 18 mm (0.67" to 0.71") Dimensions: 155 mm (W) x 105 mm (D) x 60 mm (H) (6.1"...

  • Page 232: Basic Operation

    OVERVIEW 2. BASIC OPERATION 2.1 OVERVIEW C532D500.PCX C532D501.PCX After the tape dispenser receives the start signal from the main body, the drive motor [A] rotates counterclockwise to feed out the tape. The pinch roller [B] presses the center of the tape against the feed roller [C] flexing the tape into a V shape.

  • Page 233: Drive And Cutting Mechanism

    DRIVE AND CUTTING MECHANISM 2.2 DRIVE AND CUTTING MECHANISM C532D502.PCX Start Signal 10 ms Timer 2500 ms Drive Motor Reverse Forward Home Position Sensor Task Completion 100 ms Signal C532D503.WMF The tape dispenser uses a stepping motor, which is driven at 460 pulses per second, as a drive motor.

  • Page 234: Manual Cut

    MANUAL CUT 2.3 MANUAL CUT Start Signal Timer 2,500 ms Forward Reverse Drive Motor Home Position Sensor C532D505.WMF Start Signal Timer 2,500 ms Reverse Forward Drive Motor Home Position Sensor C532D506.WMF When the manual cut switch [A] is pressed, the timer starts counting and the drive motor starts feeding tape.

  • Page 235: Replacement And Adjustment

    CUTTER REPLACEMENT 3. REPLACEMENT AND ADJUSTMENT 3.1 CUTTER REPLACEMENT C532R501.PCX C532R500.PCX C532R502.PCX 1. Remove the tape dispenser from the main body. (1 connector, 2 screws) 2. Remove the support bracket [A]. (3 screws) 3. Remove the tape dispenser cover [B] and the upper housing [C] (1 screw, 1 connector) 4.

  • Page 236: Cutter Home Position Sensor Replacement

    CUTTER HOME POSITION SENSOR REPLACEMENT 3.2 CUTTER HOME POSITION SENSOR REPLACEMENT C532R503.PCX C532R502.PCX 1. Remove the tape dispensing assembly. (See steps 1 to 4 on of " 3.1 CUTTER REPLACEMENT".) 2. Unhook the cutter spring [A]. 3. Remove the cam drive gear [B]. (1 E-ring) 4.

  • Page 237: Tape Cut Length Adjustment

    TAPE CUT LENGTH ADJUSTMENT 3.3 TAPE CUT LENGTH ADJUSTMENT C532R504.PCX Adjustment standard : 250 mm 15 mm 1. Turn on the main body and the tape dispenser main switches. 2. Press the manual cut switch [A]. NOTE: Do not press the switch longer than 2.5 seconds. 3.
  • Page 239 PCRIP-EZ1 GDI/QuickDraw Priport Controller User's Guide...
  • Page 241 TABLE OF CONTENTS INTRODUCTION ..................................1 SYSTEM REQUIREMENTS ............................... 1 HARDWARE INSTALLATION ..............................2 Cabling ................................... 2 Parallel Connection ..............................2 AppleTalk Connection ............................. 2 PRIPORT CONTROLLER CONFIGURATION ........................3 Factory Settings ................................3 Controller Configuration Program ..........................3 CONFIGURATION OF IBM PC AND COMPATIBLES ......................3 WINDOWS 3.1 AND WINDOWS 95 CONFIGURATION .....................

  • Page 243: Regulatory Notices

    REGULATORY NOTICES FCC REGULATIONS This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

  • Page 245: Introduction

    INTRODUCTION The Priport Controller is an external raster image processor designed to add a computer interface to Priport Digital Duplicators. Since it is separate from the Priport, the designers were able to use high-speed techniques making it one of the fastest add-on processors available. The Controller uses a high-speed 25-megahertz Intel 960-CA RISC microprocessor chip to achieve its high speed processing.

  • Page 246: Hardware Installation

    HARDWARE INSTALLATION The Controller connects the Priport to the computer using cables. (The computer and Priport are not directly connected to each other.) The inputs to the Priport Controller replicate those of a standard printer, including Parallel and AppleTalk® inputs. For the PC, the required cable is a standard IBM-PC parallel printer cable that is not included with the Controller.

  • Page 247: Priport Controller Configuration

    PRIPORT CONTROLLER CONFIGURATION Factory Settings: The Controller comes preset with the following factory defaults: Input Buffers: Parallel Inputs - 256 KB AppleTalk - Not applicable Page Size: US Letter (8-1/2" x 11") in US and Canada A4 (210mm X 297mm) for International Mode: Windows Graphical Device Interface (GDI) and Macintosh QuickDraw (QD)

  • Page 248: Windows 3.1 And Windows 95 Configuration

    WINDOWS 3.1 AND WINDOWS 95 CONFIGURATION Step 1. Insert the Utility Disk in drive A. Step 2. In Windows 3.1 Program Manager, under File, select Run. In Window 95, go to Setting, Control Panel and double click on the Add/Remove Programs icon. Type or confirm "a:\setup" when prompted for the Program name and click OK.
  • Page 249 Step 9. Using the right or left arrow, highlight the "Install" pull-down menu and <ENTER>. Use the down arrow key to select "Save Configuration Changes" and <ENTER>. When all the configuration changes are completed, you must decide if you want to make them permanent. If you do not complete this step, any changes you have made during this session will be lost the next time the Controller is turned off.

  • Page 250: Configuration For Macintosh Computers

    CONFIGURATION FOR MACINTOSH COMPUTERS The “DigiPrint Utility” and several small configuration files are found in a folder named “DigiPrint Utility” on the PCRIP-EZ1 Controller Macintosh Disk. These small files contain the commands for changing the output page size, printing the diagnostic status page, saving configuration changes permanently and naming your Controller. (Naming your Controllers is necessary to distinguish between multiple Controllers connected to the same AppleTalk network.) Copy the entire DigiPrint Utility folder onto your hard disk for ease of access.

  • Page 251: Application Software Set-Up

    APPLICATION SOFTWARE SET-UP Each desktop publishing or word processing application needs to use the custom printer drivers for Graphic Device Interface (GDI) and QuickDraw (QD) printing provided on the utility disks with the Controller. These DigiPrint drivers are installed into the Windows 3.1, Windows 95 or Macintosh system folder using the following procedures: GDI Printing under Windows 3.1 Customized Driver Installation for Windows 3.1:...
  • Page 252 In the "List of Printers" dialog box, which will appear on the lower half of the screen, highlight: Install Unlisted or Updated Printer. Click on Install F. Insert the floppy disk labeled Windows 3.1 Drivers in the floppy drive. The "Install Driver" window will provide a prompt for drive A:\.
  • Page 253 When the install process is completed, the printer name will appear in the "Installed Printers" dialog box on the upper half of the screen. Check to see that the new printer(s) just installed is hooked to the correct output port. If not, click on Connect to select the correct output port from the computer. You should verify that "Fast Printing Direct to Port"...
  • Page 254 For example, if you compose a document using the Ricoh VT1800 driver (300 dpi), for example, and then change to the Ricoh VT3800 driver (400 dpi), the page displayed on the screen WILL be reformatted due to a variation in font metrics at the different resolutions.
  • Page 255 Special note for Model VT3600 and VT3800 who use the Short Drum: Choose the standard Letter or A4 page size instead of Ltr (SD) or A4 (SD) page size in the page setup of your application software. If the paper is loaded correctly for the Short Drum (wide edge feed), the Priport's page size sensing will tell the Controller to rotate the image correctly to match the paper.

  • Page 256: Gdi Printing Under Windows 95

    GDI Printing under Windows 95 Customized Driver Installation for Windows 95: A. Hold down the left mouse button on Start, select Settings and then Printers. Double click on Add Printer. B. When the Add a Printer Wizard screen appears, click on the Next button. User's Guide 8-12 PCRIP-EZ1...
  • Page 257 C. Choose Local Printer and click Next. D. A listing of printers will be displayed on the left side of the screen. The printer driver you need to install will not be displayed here. Instead, insert the Windows 95 Drivers disk provided in the floppy drive and click on the Have Disk button.
  • Page 258 E. Insert the disk labeled Windows 95 Drivers into the drive. Click OK. F. Select the Priport model number you are connecting to the EZ1 Controller and click Next. User's Guide 8-14 PCRIP-EZ1...
  • Page 259 G. On this screen, verify that the correct computer output port is selected. To change computer output ports, highlight the correct port and then click Next. H. On this screen, you have the option to change the name displayed for the printer or you can use the name provided by the driver.
  • Page 260 For example, if you compose a document using the Ricoh VT1800 driver (300 dpi), for example, and then change to the Ricoh VT3800 driver (400 dpi), the page displayed on the screen WILL be reformatted due to a variation in font metrics at the different resolutions.

  • Page 261: Quickdraw Printing On The Macintosh

    QuickDraw Printing on the Macintosh NOTE: The DigiPrint Utility program and associated files should have already been copied from this utility disk to a location on the hard disk that can be easily accessed. Customized Driver Installation for the Macintosh: A.

  • Page 262: Priport Controller Operation

    PRIPORT CONTROLLER OPERATION Power-On/Power-Off Sequence: Please follow the steps listed below to turn on and off your system: A. Power-On: 1. Priport 2. Controller 3. Computer B. Power-Off: 1. Computer 2. Controller 3. Priport Controller - Front Panel Indicator Lights: A.

  • Page 263: Digiprint Monitor Function (Macintosh Only)

    E. Most Windows 3.1 and all Win95 programs can support copy setting as described above if you are using the customized DigiPrint driver provided. (Priport Models VT1800, VT2200, VT2250 and VT2400 can not provide the page size mismatch feature described below.) F.

  • Page 264: Error Codes

    The Video Interface board installed inside the Priport, which receives output data from the Controller, also receives status reports from the Priport itself. The DigiPrint Monitor polls the Video Interface board for status and receives back a status code. Each different status code reports a different condition of the Priport. Ready means that the Priport is ready to accept a print job.

  • Page 265: Commonly Asked Questions

    COMMONLY ASKED QUESTIONS How far can I have the Controller from the computer? The official specification for parallel cables recommends a length not greater than 10 feet (approximately 3 meters), however you can probably use a cable up to 25 feet (approximately 8 meters) without encountering any line communication problems.
  • Page 266 12. Will the PCRIP-EZ1 Controller work on a network? Yes, only with simple Macintosh "printer networks" AppleTalk/LocalTalk AppleTalk/PhoneTalk are supported. 13. What fonts are built into the Controller? None! Windows 3.1 and Windows 95 can use any True Type font. Macintosh can use all system fonts and True Type fonts.

  • Page 267: Troubleshooting

    TROUBLESHOOTING The following are symptoms you might encounter and the appropriate solution for each: There is a quick flash of the ready light. An error condition has been detected in the Priport. First, check for a loose or missing cable between the Controller and the Priport.
  • Page 268 Make sure that the Controller is powered on and the Priport is on-line. If only one Macintosh is connected to the Controller, contact your local sales/service organization for additional help. The Controller's ready light starts blinking slowly as if it is processing a print BEFORE I have even sent a print job down.
  • Page 269 APPENDIX A DIAGNOSTIC STATUS PAGE Priport Controller Status Page Controller Firmware Rev: 09XXXXX 0 XXXX 5 XXXX a XXXX Selected Page Size: US Letter 1 XXXX 6 XXXX b XXXX Controller RAM Size: X Megabytes 2 XXXX 7 XXXX c XXXX Mode: GDI/QuickDraw 3 XXXX 8 XXXX...
  • Page 270 INDEX AppleTalk ....................................2, 20 Application Software ..................................7, 20 Auto Cycle ....................................... 21 Cabling ......................................2, 20 Compatible Computers ..................................1 Compatible Computers:IBM & Compatible PC's ..........................1 Compatible Computers:Macintosh ............................... 1, 20 Computers © Laptop/Notebook ............................... 20 Configuration ..................................3, 4, 6, 20 Configuration:Configuration Programs ..............................
  • Page 271 C237 SERVICE MANUAL...
  • Page 273 OVERALL MACHINE INFORMATION...
  • Page 275 ESSENTIAL DIFFERENCES BETWEEN THE C237 AND C231 MODELS 1. OVERALL INFORMATION 1.1 ESSENTIAL DIFFERENCES BETWEEN THE C237 AND C231 MODELS Item Remarks Fast Printing Speed The maximum printing speed is increased from the current 120 cpm to 130 cpm. C231 model: 80, 100, 120 sheets/minute...

  • Page 276: Paper Separation Pressure Adjustment

    Supply Incompatibilities Ink: The C237 and C231 model black inks are not interchangeable. In addition, the C237 model black inks are designed differently for each vendor brand. The C237 and C231 color inks are interchangeable.
  • Page 277 ESSENTIAL DIFFERENCES BETWEEN THE C237 AND C231 MODELS Item Remarks New SC and SP Several SC codes, SP numbers, and input check numbers codes were changed. SC code: E-21 Paper exit timing sensor remains off E-22 2nd feed timing sensor remains off...

  • Page 278: Printing

    SPECIFICATIONS 1.2 SPECIFICATIONS The specifications are identical to the C231 models, except for the following. Printing Speed: 80, 100, 130 sheets/minute (3 steps) Print Paper Weight 47.1 g/m to 209.3 g/m [12.5 lb to 55.6 lb] Master Process Time: Platen mode:...
  • Page 279 Switches Index No. Name Remarks Test Switch Not used for the C237 model Master Making Unit Not used for the C237 model Cover Safety Switch C231/C237/C238...

  • Page 281: Detailed Section Descriptions

    DETAILED SECTION DESCRIPTIONS...
  • Page 283 [A]. Thin Paper: Gives a lower pressure by lifting up the feed roller unit with a spring [C]. NOTE: The paper feed pressures for standard and thick paper are the same as for the C231 model. C231/C237/C238...

  • Page 284: Motors

    [B]. When the gear [A] rotates, it drives the piston [C] back and forth. The piston moves forward and pushes a jet of air out through the nozzle [D]. This jet of air helps to separate the paper from the drum. C231/C237/C238...
  • Page 285 INSTALLATION...
  • Page 287 INSTALLATION 3. INSTALLATION There are no differences from the C231 model in this section. C231/C237/C238...
  • Page 289 SERVICE TABLES...

  • Page 291: Cloth Screen

    Thermal head thermistor The thermistor output voltage (CN109-A1) is Thermal head connector greater than 4.9 volts. E-10 Thermal Head Drive Failure Thermal head The CPU detects an abnormal condition in the thermal head drive circuit. Thermal head connector and harness C231/C237/C238...
  • Page 292 The master eject position sensor does not activate before the feed start timing sensor activates. *E-24 Feed start timing sensor remains off Feed start timing sensor The feed start timing sensor does not activate before the 2nd feed timing sensor activates. C231/C237/C238...

  • Page 293: Counters

    0:B4 Never change Size matches the machine. the setting. 1:A4 NOTE: This function is for 2:LG production line use only. Select the area name. 0:JPN Displays only when “0:B4” is 1:Asia selected in 2:EU SP15-1. Never change the setting. C231/C237/C238...
  • Page 294 Paste Adjusts the Paste Shadow 0: Standard Shadow Erase level that can be set 1: Light Erase with the key on the 2: Lighter operation panel. The shadows of pasted-up edges on originals lighten. C231/C237/C238...
  • Page 295 Adjusts the thermal head 0 to -99% (-8) Head Energy energy for the Economy Adjust mode. ADF Mag. Adjusts the ADF sub-scan -1.9 to For the ADF Adjust magnification. +1.9% mode 0.1% steps Use the Memory/ Class key for "+" or "-" C231/C237/C238...
  • Page 296 0: -10 mm Specifies whether the fine 0:No Finemode mode is selected at power- 1:Yes Default Swap Start Enables swapping the start 0:No (master making) key 1:Yes function and the print key function depending on the end user’s preference. C231/C237/C238...
  • Page 297 *82 Skip Feed Specifies how many prints "1" means no 1 to 9 are skipped between prints skip. in the skip feed mode. C231/C237/C238...
  • Page 298 Print Start key. Stop with the Stop key. Economy Displays the total number of Count masters made in Economy mode. 103 Margin Displays the total number of Erase Count masters made with the Margin Erase key. C231/C237/C238...

  • Page 299: Others

    *122 Clear UC Clears the selected user 0: No Same as Count code counter. 1: Yes above. *123 Total UC Displays the total number of masters and prints for up to Count 20 user codes. C231/C237/C238...

  • Page 300: Installation

    150 Control ROM Displays the ROM part P/No. YYYY/MM/DD number and the ROM manufacturing date. 151 Machine No. Displays the machine serial Input the serial number and the installation number and date. the installation date. C231/C237/C238 4-10...

  • Page 301: Installation

    *171 ERS. **2 Enter the original size that (100 to 0 x 0 Same as you want to use with the 258) x (100 above Margin Erase mode. to 364) mm (4.0 to 10.0) x (4.0 to 14.3 ) inch 4-11 C231/C237/C238...
  • Page 302 SN: Pressure Plate Pressure Plate Home Position Sensor Home Position In-31 SN: Pressure Plate Pressure Plate Limit Sensor Limit Position In-32 SW: Master Eject Box Eject Box Set Sensor In-33 SIG: Key Counter When a key counter is installed In-39 C231/C237/C238 4-12...
  • Page 303 SN: Master Eject Master Eject Position Sensor Position In-59 SN: Drum Set When the drum connector is connected In-62 SN: Clamper Close Clamper Close Sensor In-65 SN: Clamper Open Clamper Open Sensor In-66 SN: Registration Paper Registration Sensor In-68 4-13 C231/C237/C238...
  • Page 304 INPUT/OUTPUT CHECK MODE Output Check Table There are no differences from the C231 model in this section. Code LCD Display Description MOTOR: Master Eject Turns on the master eject motor. Out- 3 MOTOR: Vacuum Turns on the vacuum fan motor.
  • Page 305 MOTOR: Pressure Turns on the pressure plate motor and moves the Plate ON plate to the lower limit position. Out-46 MOTOR: Pressure Turns on the pressure plate motor and moves the Plate OFF plate to the home position. Out-47 4-15 C231/C237/C238...
  • Page 306 The motion time of the pressure plate motor has been changed from 2.8 ms to 1.8 ms, to prevent the motor on master eject section has a load a long term. NOTE: This issue is related to the U.S. version models only. C231/C237/C238 4-16...
  • Page 307 Production after the paper is properly captured between the Feed ROM: drum and the pressure roller. This symptom was C237 5107- D due to a firmware bug, and it has been solved. MPU: C237 5100- N Remark 1: 4-17 C231/C237/C238...
  • Page 309 PREVENTIVE MAINTENANCE...
  • Page 311 PREVENTIVE MAINTENANCE 5. PREVENTIVE MAINTENANCE There are no differences from the C231 model in this section. C231/C237/C238...
  • Page 313 REPLACEMENT AND ADJUSTMENT...
  • Page 315 2.0 0.1 volts. 9. Remove the solid black pattern from the master end sensor. 10. Install a new master roll. 11. The sensor input voltage is displayed on the operation panel. Check that it is 0.1 volts. C237R559.WMF C231/C237/C238...

  • Page 316: Master Eject Unit

    NOTE: As the default, the adjusting screw [A] is set at the 2nd position from the top. The amount of separation pressure is the same as for the C231 model. This change allows the separation pressure to be lowered more, which makes it more effective for thin paper feed and separation.
  • Page 317 4. Disconnect the 2 connectors [A] and remove the stay [B]. 5. Check whether the hole [C] in the pump drive gear is aligned with the hole [D] in the air pump unit bracket. 6. If the alignment is incorrect, remove the air pump unit and reposition the gear. C231/C237/C238...
  • Page 319 C238 SERVICE MANUAL...
  • Page 321 INSTALLATION...

  • Page 323: Installation Requirements

    1. Securely connect the power cord to a power source. 2. Make sure that the wall outlet is near the machine and easily accessible. 3. Make sure the plug is firmly inserted in the outlet. 4. Avoid multi-wiring. 5. Do not pinch the power cord. C231/C237/C238...

  • Page 324: Access To The Machine

    INSTALLATION REQUIREMENTS 1.1.4 ACCESS TO THE MACHINE Place the machine near a power source, providing clearance as shown below. C238I000.WMF C231/C237/C238...

  • Page 325: Procedure

    Make sure that you have all the accessories listed below: Description Quantity 1. Master Spool................2 2. Paper Feed Side Pad..............2 3. Operating Instructions ............... 1 4. NECR (Ricoh version only) ............1 5. Model Name Plates (C238-22, -52 and -54 only)...... 1 set C231/C237/C238...
  • Page 326 Secure the machine on the table with the 2 screws [A] provided. This prevents the machine from falling from the table when the platen cover is open. Lock the casters of the table as shown [B], to prevent the machine from moving (e.g. when the drum is set). C231/C237/C238...
  • Page 327 INSTALLATION PROCEDURE C238I016.WMF C238I017.WMF C238I020.WMF 2. Remove the filament tape and string securing the covers and units as shown above. C231/C237/C238...
  • Page 328 C238I030.WMF 5. Install the master roll as shown to the right. C238I032.WMF 6. Insert the leading edge of the master roll under the platen roller. The arrows [B] indicate the correct position of the master leading edge. C238I033.WMF C231/C237/C238...
  • Page 329 [D]. C238I034.WMF 10. Open the paper table, and load a stack of paper . 11. Make sure that the side plates [E] touch the paper gently. Shift the lock lever [F] in the direction of the arrow. C238I028.WMF C231/C237/C238...
  • Page 330 15. Make sure that the wall outlet is near the machine and easily accessible. 16. Turn on the main switch [H]. 17. Press the “Economy mode” key while holding down the “0” key, to supply ink inside the drum. 18. Make some test copies. C238I026.WMF C231/C237/C238...
  • Page 331 1.2.2 PLATEN COVER INSTALLATION (OPTION) Accessory Check Check the quantity and condition of the accessories in the box against the following list: Description Quantity 1. Stepped Screw................2 Installation Procedure C238I001.WMF 1. Install the platen cover [A] (2 screws). C231/C237/C238...
  • Page 332 5. Decal - Exposure Glass ............1 6. Decal - Scale - mm..............1 7. Decal - Scale - inch ..............1 8. Scale Guide ................1 9. Stabilizer Bracket ..............2 10. Thumbscrew ................4 11. Caution Label................1 C231/C237/C238 1-10...
  • Page 333 INSTALLATION PROCEDURE Installation Procedure C238I002.WMF 1. Remove the strips of tape. 1-11 C231/C237/C238...

  • Page 334: Notes

    5. Install the two stud screws [F]. 6. Mount the DF by aligning the holes [G] in the DF with the stud screws, then slide the DF to the front as shown. 7. Secure the DF unit with two screws [H]. C231/C237/C238 1-12...

  • Page 335: Procedure

    10. Plug in the power cord, then turn the main switch on. 11. Make a full size copy using the ADF. Then check to make sure the side-to-side and leading edge registrations are correct. If they are not, adjust their values (do the adjustment procedures in section 5.7.3). 1-13 C231/C237/C238...

  • Page 336: Procedure

    1. Attach the two stabilizer brackets [A] to the back of the table using the thumbscrews (4 screws). 2. Attach the caution label [B], as shown. CAUTION This procedure must be done to prevent the machine from falling backwards when the ADF is open. C231/C237/C238 1-14...
  • Page 337 C226 only)..............2 4. Auxiliary Bracket (C226 only)..........1 5. Auxiliary Bracket (C238 only)..........1 6. Screw M4 x 8 (C226 and C238 only) ........2 7. Lock Washer (C226 only)............ 1 8. Lock Washer ............... 1 9. Tape..................1 1-15 C231/C237/C238...
  • Page 338 NOTE: 1) Tighten the knob screws with a screwdriver to prevent them from coming loose. 2) Install the lock washer [E] (accessories) with the lower of the two knob screws. 6. Reinstall the paper delivery plate. 7. Refer to "Common Steps". C231/C237/C238 1-16...
  • Page 339 INSTALLATION PROCEDURE - For C231 and C237- C238I536.WMF C238I533.WMF 1. Turn off the main switch and unplug the power cord. 2. Remove the paper delivery table (2 screws). 3. Remove the paper delivery plate (4 screws). 4. Cut the cap [A] off the rear cover with pliers, then connect the tape marker cable to the main body.
  • Page 340 NOTE: Install the lock washer [C] (accessories) with the nut. Tape Marker: 6. Install the tape marker on the auxiliary bracket with two M4 x 8 screws [E] (accessories). 7. Install the lock washer [F] (accessories) with one of the two screws. 8. Refer to "Common Steps". C231/C237/C238 1-18...
  • Page 341 3. Refer to "Common Steps". — For Model C228 and the models on which the New Paper Delivery Table is installed — Use the two holes in the tape marker bracket [C] as shown below. C238I504.PCX 1-19 C231/C237/C238...
  • Page 342 (accessories) in the two inner holes of the tape marker bracket. NOTE: 1) Tighten the knob screws with a screwdriver to prevent them from coming loose. 2) Install the lock washer [B] (accessory) with the lower of the two knob screws. 3. Refer to “Common Steps”. C231/C237/C238 1-20...
  • Page 343 4. Turn on the tape marker switch [F]. C238I520.PCX 5. Press the tape cut button [G] to cut off the leading edge of the tape. 6. Check the tape marker operation using the Memory/Class modes of the main body. C238I521.PCX 1-21 C231/C237/C238...
  • Page 344 NOTE: The color drum indicator (or A4 drum indicator) on the operation panel stays lit when a drum is mounted in the machine. 8. Remove the ink cartridge cap. 9. Insert the ink cartridge in the ink holder. C231/C237/C238 1-22...
  • Page 345 3. Install the I/F board [D] (accessories) in CN117 [E] on the MPU (2 screws). 4. Attach the cable [F] (accessories) to the connector bracket (2 screws) and clamp the cable (6 clamps). 5. Connect the connector [G] at the opposite end to the I/F board. 6. Re-install the rear covers. 1-23 C231/C237/C238...
  • Page 347 PREVENTIVE MAINTENANCE...
  • Page 349 (SAE #20) Friction Pad Damp Cloth Press Roller Alcohol Table Fulcrum Motor Oil Shafts [B] (SAE #20) Table Racks [C] Grease (Alvania Paper Delivery Transport Belts Paper End Sensor Dry Cloth Registration/Exit Dry Cloth Sensors Registration Roller Dry Cloth C231/C237/C238...
  • Page 350 Ink Pump Gears [E] Motor Oil (SAE #20) In/Outside of Drum Alcohol Ink Nozzle Alcohol Others Main Drive Timing 3.8.9 Belt Tension Printing Pressure Grease Spring Hooks [F] (Alvania Press Roller Release Lever Position ADF (Option) DF Feed Rollers Dry Cloth C238P001.WMF C231/C237/C238...
  • Page 351 REPLACEMENT AND ADJUSTMENT...
  • Page 353 : See or Refer to  : screw : connector  : E-ring : Clip 3.2 COVERS / BOARDS 3.2.1 FRONT COVER / PANEL C238R006.WMF [A]: Front door ( x 4) [B]: Front cover ( x 6) [C]: Upper right cover ( x 2) [D]: Operation panel ( x 4, x 1) C231/C237/C238...
  • Page 354 [A]: MPU ( x 17,  x 6, 9 clamps) CAUTION: Move the RAM [B] from the old board to the new one, so that the SP mode settings will be transferred to the new board. Adjust the master end sensor ( 3.5.4) after installing the new MPU. C231/C237/C238...
  • Page 355 Master eject unit ( 3.4.1) [A]: PSU ( x 5,  x 2, 2 clamps) CAUTION: When the PSU is replaced, the thermal head voltage returns to the default. Adjust the thermal head voltage ( 3.5.3) after installing the new board. C231/C237/C238...
  • Page 356 [C]: Exposure glass C238R038.WMF 3.3.2 SBU AND LAMP STABILIZER / SCANNER MOTOR Left scale, Upper scale, Exposure glass ( 3.3.1) Upper right cover ( 3.2.1) [A]: SBU cover ( x 4) C238R039.WMF [B]: SBU ( x 1,  x 5) C238R040.WMF C231/C237/C238...
  • Page 357 3.3.3 SCANNER H.P. SENSOR / PLATEN COVER SENSOR Left scale, Upper scale, Exposure glass ( 3.3.1) Operation panel ( 3.2.1) Rear upper cover ( 3.2.2) [A]: Platen cover sensor ( x 1) [B]: Left stay ( x 1) [C]: Scanner H.P. sensor ( x 1) C238R043.WMF C231/C237/C238...
  • Page 358 [B]: Rear frame ( x 1,  x 2) [C]: Front frame ( x 5) C238R045.WMF [D]: Exposure lamp ( x 1) NOTE: After installing the lamp, press the lamp holder [E] up to the original position so that it can hold the lamp properly. C231/C237/C238...

  • Page 359: Scanner Drive

    5. Wind the end of the new wire with the ring as shown ( , and “ 6. Connect the tension spring to the wire tension bracket ( 7. Wind the new scanner wire for the other side as well. C231/C237/C238...
  • Page 360 10. Secure the scanner drive pulley [G] (1 Allen screw). 11. Remove the scanner positioning pins [I] (P/N: #A0069104). 12. Slide the scanner to the left and right several times, then set the scanner positioning pins to check the clamp position and wire tension bracket position again. C231/C237/C238...
  • Page 361 SP6-05: Scanning speed - platen ( 5.7.3) SP6-06: Scanning speed - ADF SP6-03: Scanning start position - platen ( 5.7.3) SP6-04: Scanning start position - ADF SP6-01: Main scan position - platen ( 5.7.3) SP6-02: Main scan position - ADF SP6-31: SBU calibration ( 5.7.4) C231/C237/C238...
  • Page 362 MASTER EJECT 3.4 MASTER EJECT 3.4.1 MASTER EJECT UNIT C238R025.WMF [A]: Master eject unit ( x 3,  x 2, 1 clamp) C231/C237/C238 3-10...
  • Page 363 3.5.1 MASTER MAKING UNIT C238R010.WMF [A]: Master making unit ( x 2) 3.5.2 THERMAL HEAD C238R049.WMF Master making unit ( 3.5.1) Open the platen roller unit [1]. [A]: T/H upper cover ( x 2) [B]: T/H side cover ( x 1) 3-11 C231/C237/C238...
  • Page 364 (3 lock pawls). Make sure to set the front side (the paper table side) first. 3) Make sure that all protrusions are properly fitted into the springs. CAUTION: Adjust the thermal head voltage ( 3.5.3) after installing the new thermal head. C231/C237/C238 3-12...
  • Page 365 Stop key if you cannot finish the adjustment quickly. A beeper sounds while the power is being supplied. 6. Measure the voltage, and turn VR1 so that the value becomes between “+0” and “-0.1” volts from the value on the thermal head decal. 3-13 C231/C237/C238...
  • Page 366 3. Connect the power plug, and turn on the main switch. 4. Measure the voltage, and turn VR102 so that the value becomes between “-0” and “+0.1” volts from the standard value (1.6 volts). C231/C237/C238 3-14...
  • Page 367 Adjust the paper separation pressure by loosening and moving the adjusting screw [A] up or down. Moving up the screw Increases the paper separation pressure Moving down the screw Decreases the paper separation pressure Tighten the screw after the adjustment. C238R031.WMF 3-15 C231/C237/C238...
  • Page 368 Lower the paper table. [A]: Paper table ( x 1,  x 2) [B]: Table cover ( x 5, 3 washers) [C]: Sensor cover ( x 2) [D]: Paper width detection board ( x 1,  x 1) C231/C237/C238 3-16...
  • Page 369 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. 3-17 C231/C237/C238...

  • Page 370: Press Roller Release Lever Adjustment

    [C] and the press roller lock lever [D] (rear side). It should be between 0.7 and 1.2 mm. 3. If it is not correct, adjust the position of the press roller lock lever after loosening the two screws [E]. 4. Repeat steps 2 and 3 for the front side. C231/C237/C238 3-18...
  • Page 371 0.2 mm C238R052.WMF Paper delivery unit ( 3.9.1) 1. Adjust the distance [A] to 10 0.2 mm by turning the adjusting bolt [B]. 2. Repeat the same procedure for the printing pressure spring at the non- operation side. 3-19 C231/C237/C238...
  • Page 372 C238R053.WMF C238R054.WMF Remove the drum 1. Remove the drum upper bracket ( x 4). 2. Release the stopper [A], then rotate the drum until the master clamper faces top. 3. Remove the cloth screen [B] ( x 4). C231/C237/C238 3-20...
  • Page 373 When replacing the cloth screen, spread the screen around the metal screen while strongly 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. 3-21 C231/C237/C238...
  • Page 374 2) Use a cloth dampened with water to clean the inside of the clamping plate [C]. Never use alcohol or other solvents. The clamping force of the magnet will be weakened. [D]: Tape (do not lose it) [E]: Metal screen ( x 12) C231/C237/C238 3-22...
  • Page 375 0.3 mm or less, as shown above. (The two holes [A] on the trailing side are round holes and the other holes are long holes, to allow for the removal of the slack.) Do not scratch the cloth screen or metal screen. 3-23 C231/C237/C238...

  • Page 376: Ink Pump Adjustment

    2. Loosen the two screws securing the holder [E]. (Do not remove the holder.) 3. Push the plunger [F] until it reaches the bottom. NOTE: The end of the plunger [F] must not stick out from the holder [E]. C231/C237/C238 3-24...
  • Page 377 5. If the motion is stiff, loosen the pump screws [G] and adjust the pump position. 6. After tightening, repeat step 4 and step 3. C238R017.WMF 7. Re-tighten the two screws [H]. 8. Check that the piston motion is smooth. 9. Reinstall the E-ring [C]. 3-25 C231/C237/C238...
  • Page 378 [B]: Front stay ( x 2,  x 3) [C]: Front flange C238R023.WMF [D]: Rear stay ( x 2) [E]: Rear stoppers ( x 1) [F]: Ring [G]: Rear flange C238R060.WMF [H]: Ink roller unit [I]: Ink roller one-way clutch C238R033.WMF C231/C237/C238 3-26...
  • Page 379 2. 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. NOTE: Make sure to repeat the adjustment for both ends of the rollers. 3-27 C231/C237/C238...

  • Page 380: Main Motor Pulley Position

    MPU ( 3.2.3) 1. Loosen the screws [A], [B], and [C]. 2. Move the tension roller [D] to the right with a screwdriver [E] as shown. 3. Tighten the screws [A], [B], and [C]. 4. Remove the screwdriver. C238R032.WMF C231/C237/C238 3-28...

  • Page 381: Paper Delivery Unit

    3.9.2 DELIVERY BELT / PAPER EXIT SENSOR C238R035.WMF Paper delivery unit ( 3.9.1) [A]: Paper guide ( x 2) [B]: Delivery belts [C]: Vacuum fan motor ( x 1,  x 4) C238R036.WMF [D]: Paper exit sensor ( x 1) 3-29 C231/C237/C238...

  • Page 382: Exit Pawl Adjustment

    0.15 mm. 3. If the clearance is not correct, adjust the clearance by turning the bolt [F]. 4. Reposition the bracket [C] and tighten the screws [A] and [B]. 5. Do the timing adjustment (see the next page). C231/C237/C238 3-30...

  • Page 383: Timing Adjustment

    5. 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. NOTE: Do not push the cam followers too strongly against the cam. 6. Re-position the bracket [D] and tighten the screws [B] and [C]. 3-31 C231/C237/C238...

  • Page 384: Air Pump Adjustment

    2. Check whether the hole [B] in the pump drive gear is aligned with the hole [C] in the air pump unit bracket. 3. If the alignment is incorrect, remove the air pump unit and re-position the gear. C231/C237/C238 3-32...

  • Page 385: Special Tools

    SPECIAL TOOLS 3.10 SPECIAL TOOLS The following are the special tools used for service. Description Part number Note Scanner positioning pins (4 pins as a set) A006 9104 3.3.5 Flash memory card A230 9352 5.9.2 5.9.3 3-33 C231/C237/C238...
  • Page 387 TROUBLESHOOTING...

  • Page 389: Error Codes

    MPU. E-17 Drum Thermistor Open Thermistor connector The thermistor output voltage is over 4.9 volts. Thermistor E-18 Drum Overheat Drum overheat Thermistor The temperature of the drum is greater than 54 C when the Start key is pressed. C231/C237/C238...
  • Page 390 The master eject position sensor does not activate Feeler before the feed start timing sensor activates. E-24 Feed Start Timing Sensor error Drum sensors The feed start timing sensor does not activate before the Feeler 2nd feed timing sensor activates. C231/C237/C238...

  • Page 391: Covers

    The paper table goes down below the sensor, Shorted and E-02 is displayed. Platen Cover Sensor The master is made normally, even if the Open platen cover is open. The image is treated using center/edge erase Shorted mode. Scanner HP Sensor Open E-13 is displayed. Shorted C231/C237/C238...
  • Page 392 The “the open cover” and “E” indicators are lit. Eject Box Set Switch The master is fed to the eject box, even if Open there is no eject box. Shorted The “the open cover” and “E” indicators are lit. C231/C237/C238...
  • Page 393 +24v (CN111-3, 4, 5) E-13 is displayed, and the output mode in SP mode does not turn anything on except the main motor. +24v (CN111-1) E-13 is displayed, and SP5-14, 15 (pressure plate motor output mode) does not turn the motor on. C231/C237/C238...

  • Page 394: Blown Fuse Conditions

    LED104 Monitors the CPU operation. Usually, this LED is blinking at intervals of 1 second. 4.3.3 VR’S Function VR101 Not used. 3.5.4) VR102 Adjusts the master end sensor ( Function 3.5.3) Adjusts the thermal head voltage. ( Not used. C231/C237/C238...

  • Page 395: Dip Switches

    Adjusts the ink detection. ( 4.3.4 DIP SWITCHES Ink detection board Normal drum Color drum A4 black drum 4.3.5 TEST POINTS Function 3.5.4) TP102 Measures the master end sensor voltage. ( Function 3.5.3) TP701 Measures the thermal head voltage. ( TP702 C231/C237/C238...
  • Page 397 SERVICE TABLES...

  • Page 399: Using Service Program Modes

    1. Key in the following sequence. Method 1: Hold the E key down for longer than 3 seconds. Method 2: Combine key 2. The zoom counter displays “SP1”. 3. Go to section 5.1.2. Leaving SP Mode Press the key one or more times. C231/C237/C238...

  • Page 400: How To Select A Program Number

    Keep pressing the Enter key to display the rest of the number. Example: When the value is 32055, the paper counter display changes as shown. Change ON/OFF: Use the “1” key and “0” key to switch an SP “ON” and “OFF”. 1: ON 0: OFF C231/C237/C238...
  • Page 401 1-57 P jam location counter (original feed-in) 6.10.2 1-58 P jam location counter (original feed-out) 6.10.2 1-70 Main firmware suffix information 5.2.2 1-71 Feed ROM suffix information 5.2.2 ⇒ 1-72 Serial Number (Service) 5.2.4 ⇒ 1-75 Serial Number (Factory) 5.2.4 1-80 Error code information 5.2.3 C231/C237/C238...
  • Page 402 By pressing the Enter key, the display changes between the year, the month / date, and the time, as shown below. Latest error code The year The month / the date The time Error code previous to that Example: E-01, 2002/January/2nd/13:00 E-01 2002 0102 1300 C231/C237/C238...
  • Page 403 1. Enter SP1-72 (or SP1-75). 2. “F09” is displayed (first three digits). ↓# “1234” is displayed (middle four digits). ↓# “5678” is displayed (last four digits). 5. If the machine has no serial number, the SP displays “ ---- ”. C231/C237/C238...
  • Page 404 93% of the maximum possible (100 – 7). 2-42: The default is 10%. This means that in economy printing mode, the thermal head energy is reduced by another 10%. With the default settings, this means that the thermal head energy is 83% of maximum power (100-7-10). C231/C237/C238...
  • Page 405 When the Master End condition occurs When a B-jam (Master Eject Jam) or a D-jam (Master Feed Jam) occurs When the paper height sensor is activated at main power ON C231/C237/C238...
  • Page 406 Input the last two digits of the present year (two-digit number). ↓# Input the present month and the date (four-digit number). ↓# Input the present time (four-digit number). ↓# Example: 2002/January/2nd/13:00 ↓# 0102 ↓# 1300 ↓# C231/C237/C238...
  • Page 407 Purpose: To input the serial number on SP1-72. Example: Serial number F0912345678. 1. Enter SP3-3. (“F09” is displayed). ↓# 2. Input “1234” (middle four digits). ↓# 3. Input “5678” (last four digits). ↓# NOTE: Can not input SP1-75 (Serial number: Factory). C231/C237/C238...
  • Page 408 Form HLT -L Letter -L Letter Legal -L Double letter -L Width (mm) 134 to 154 211 to 231 274 to 295 211 to 231 274 to 295 Length (SP4-34) “-L”: Lengthwise feed SP4-34: Paper length sensor data C231/C237/C238 5-10...
  • Page 409 5-25 Ink pump motor 5-48 Vacuum fan motor 5-26 Pressure release solenoids 5-49 Paper delivery motor 5-50 Paper counter 5-51 Master counter 5-60 ADF motor 5-61 ADF feed clutch 5-62 ADF pick-up solenoid 5-63 Optional key counter signal 5-11 C231/C237/C238...
  • Page 410 Access SP6-40, and open the door cover, then turn the VR1 [A] on the ink detection board until the display becomes “6.0 u” (6 µs). NOTE: When the drum has ink inside, the machine displays “----“. C238S013.WMF C231/C237/C238 5-12...

  • Page 411: Sp6-21: Paper Registration Position

    4. If it is not, access SP6-21, input the difference and press the Enter key. Example: If the value is 16 mm, 16 - 11 = +5.0 5. Repeat the procedure to make sure that the gap is correct. 5-13 C231/C237/C238...

  • Page 412: Sp6-05: Scanning Speed - Platen

    3. 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.) 4. Repeat the procedure to make sure that there is no difference. 5. Make a copy in ADF mode and repeat the process using SP6-02. C231/C237/C238 5-14...

  • Page 413: Sp6-31: Sbu Calibration

    [A]: Increase the value The occurrence of paper skew will be reduced, but the paper is more likely to slip and the registration position may be incorrect. [B]: Decrease the value The paper registration position will be correct. 5-15 C231/C237/C238...
  • Page 414 2nd print: 60 rpm 3rd print: 75 rpm 4th print: 90 rpm 5th print: 105 rpm 6th print: 120 rpm 4. The distance between the leading edge and first line should be 11 mm, as shown below. C238A081.WMF C231/C237/C238 5-16...
  • Page 415 (i.e. 30, 60, 75, 90, 105, and 120rpm samples). 8. Perform the adjustment again for any of the samples that are still outside the 11mm standard. 9. Return SP2-24 (Slow starting mode) to the value it was at before the adjustment. 5-17 C231/C237/C238...
  • Page 416 Then repeat Steps 4 thru 6 for each of the other five copy samples (i.e. 30, 60, 75, 90, 105, and 120 rpm samples). 8. Perform the adjustment again where necessary. 9. Return SP2-24 (Slow starting mode) to the value it was at before adjusting. C231/C237/C238 5-18...
  • Page 417 - Lowering this setting decreases the length of the master. NOTE: - Lower settings will decrease smudges, but may cause an ink leak from the rear of the drum. NOTE: SP6-36 and 37 require firmware version 1.34 or later. 5-19 C231/C237/C238...
  • Page 418 2. Press the Enter key. 3. When the clear is completed, the beeper will sound. 5.8.3 SP7-1: FACTORY SETTINGS CLEAR This resets all SP settings except for the following SP numbers. • SP2-20: Destination settings • SP3-01: Present time • SP6-All: Adjustments C231/C237/C238 5-20...
  • Page 419 7. Access SP8-1. Using the “1” key, select “Ld”. 8. Press the Enter key. (It takes about 2.0 minutes to complete.) 9. Check that the “End” is displayed. 10. Turn off the main switch, and remove the flash memory card. 5-21 C231/C237/C238...
  • Page 420 Purpose: To drive the paper feed mechanism at the lowest speed (15 rpm) without paper. 1. Access SP8-22 and enter the number of times that you want to repeat the paper feed cycle. 2. Press the Print key. 3. To exit this mode, press the Stop key. C231/C237/C238 5-22...
  • Page 421 DETAILED SECTION DESCRIPTIONS...
  • Page 423 10. Paper table 25. 1st transport roller 11. Registration rollers 26. 2nd transport roller 12. Doctor roller 27. Original feed belt 13. Ink roller 28. Separation roller 14. Press roller 29. Pick-up roller 15. Exit pawl 30. Original exit roller C231/C237/C238...
  • Page 424 MECHANISM OVERVIEW 6.1.2 ELECTRICAL COMPONENT LAYOUT C238D003.WMF C238D004.WMF C231/C237/C238...

  • Page 425: Operation Panel

    Paper Delivery Motor Feeds out the printed paper. Clamper Motor Opens or closes the master clamper on the drum. Main Motor Rotates the drum. Table Motor Raises and lowers the paper table. Ink Pump Motor Drives the ink pump. C231/C237/C238...
  • Page 426 Detects paper approaching the registration roller. Paper End Sensor Detects when the paper table runs out of paper. Cutter HP Sensor Detects when the cutter is at the home position. Paper Length Sensor Detects when long paper is on the paper table. C231/C237/C238...
  • Page 427 Keeps track of the total number of copies. Master Counter Keeps track of the total number of masters made. Others Component Function Thermal Head Burns the image onto the master. Exposure Lamp (Xenon Lamp) Applies light to the original for exposure. C231/C237/C238...
  • Page 428 MECHANISM OVERVIEW 6.1.3 DRIVE LAYOUT C238D002.WMF 1. Pressure plate motor 6. Table motor 2. Clamper motor 7. Paper feed motor 3. Paper delivery motor 8. Master feed motor 4. Main motor 9. Scanner motor 5. Registration motor C231/C237/C238...
  • Page 429 The pressure plate [D] then compresses the used masters in the eject box. The capacity is 50 used masters (under normal conditions) The master eject process is skipped when the drum master sensor [E] detects no master on the drum. C231/C237/C238...
  • Page 430 4) The drum guide catches the drum at the master eject position while the master clamper is being opened. When the clamper motor turns on in reverse to close the clamper, the drum guide also disengages the pin and the drum can turn. C231/C237/C238...
  • Page 431 4. When the drum reaches the master feed position, the master eject and drum motors stop. The master feed position is 121 encoder pulses (43 degrees) after the feed start timing sensor is actuated. 5. During this process, the master eject sensor [E] detects master eject jams. ( 6.10.1) C231/C237/C238...

  • Page 432: Pressure Plate Mechanism

    3. If the pressure plate limit sensor is not actuated within 4.5 seconds after the pressure plate motor rotates, the Full Master Eject Box indicator lights. 4. The idle gear has a clutch [E] to prevent motor overload. C231/C237/C238 6-10...

  • Page 433: Scanner Unit

    Light reflected off the original is directed onto a CCD via the mirrors and the lens. The main-scan resolution is 600 dpi, because the CCD is 600 dpi. This model always reduces the amount of scanned data to 300 dpi. ( 6.4.5) The sub-scan resolution is 300 dpi. 6-11 C231/C237/C238...
  • Page 434 First scanner speed equals the drum rotation speed divided by the magnification ratio (0.5 to 2.0). Varying the scanner speed changes the sub-scan image size. Image processing on the MPU changes the main scan image size. The return speed is the same as in full size mode. C231/C237/C238 6-12...

  • Page 435: Image Processing

    The CCD line has 7,450 pixels and the resolution is 600 dpi (23.6 lines/mm). The A/D converter in the SBU transforms the analog signals into 8-bit digital signals. The MPU carries out the following processes on the image data: Auto shading Filtering (MTF) Magnification Binary processing 6-13 C231/C237/C238...

  • Page 436: Mtf Filter

    The processing for main-scan enlargement/reduction is the same as in the previous digital machines The thermal head is 300 dpi, but the CCD is 600 dpi. Therefore, this model always reduces the amount of scanned data by half before printing. C231/C237/C238 6-14...

  • Page 437: Fine Mode

    With this function, the scanner scans at 400 dpi in the sub-scan direction by reducing the scanner motor speed, then the master making unit writes at 400 dpi in the master feed direction by reducing the master feed motor speed. Therefore, the resolution in the paper feed direction is 400 dpi. 6-15 C231/C237/C238...

  • Page 438: Thermal Head Control

    The temperature of the thermal head is greater than Thermal head 54 C when the Start key is pressed. Thermal Head Thermistor Open Thermal head thermistor E-09 The thermistor output voltage is over 4.9 volts. Thermal head connector C231/C237/C238 6-16...

  • Page 439: Remarks For Handling The Thermal Head

    Master terminals with bare hands, to prevent damage from static electricity. Connect and disconnect the connectors carefully. Keep them horizontal and firmly reconnect them. Adjust the voltage supplied to match the specified value for the thermal head. C238D021.WMF 6-17 C231/C237/C238...

  • Page 440: Overview

    The thermal head [B] makes an image on the master. Clamper [C] opens. (The drum is at the master feed position.) The clamper clamps the master. At this time, the cutter [D] cuts the master. The master is wrapped around the drum [E]. C231/C237/C238 6-18...

  • Page 441: Master Feed Mechanism

    Then the master feed motor turns off, and cutting is done. NOTE: Springs press the thermal head against the platen roller. The pressure is applied when the master set cover, which includes the platen roller, is closed. 6-19 C231/C237/C238...

  • Page 442: Clamper And Tension Roller Mechanism

    When the clamper opens, it pushes the tension roller arms [I] and moves the tension roller away from the guide plate to allow the master to be fed into the master clamper. Clamper mechanism: See the Master Eject section C231/C237/C238 6-20...

  • Page 443: Cutter Mechanism

    The leading edge of the master that was cut remains at the cutting position, ready to make the next master. 6.5.5 MASTER SET COVER SENSOR C238D020.WMF [A]: Master set cover sensor [B]: Master set cover If the cover is closed properly, the release button [C] rises. 6-21 C231/C237/C238...

  • Page 444: Drum

    2) The main motor speed and the drum stop positions are controlled by monitoring the motor encoder. 3) The ink pump, which is outside the drum, supplies ink from the ink cartridge into the drum through the drum shaft. C231/C237/C238 6-22...

  • Page 445: Boards

    Feed start sensor [E] (feed start timing) Second feed timing sensor [F] (jam detection) Paper exit timing sensor [G] (jam detection) 4) The drum has two stop positions: Master eject (home) position Master feed position (feed start timing sensor + 121 pulses (43 degrees)) 6-23 C231/C237/C238...
  • Page 446 Supplies ink from the ink cartridge to the ink roller via the pump, the shaft, the tube, and the ink distributor pipes [C]. Ink drops through 4 openings [D] in the ink distributor onto the ink roller. NOTE: The ink pump is outside the drum in this model. C231/C237/C238 6-24...
  • Page 447 This happens when the press roller [F] under the drum moves up to press the drum screen and the master against the ink roller. ( : Digital Duplicators – Ink Supply Control) 6-25 C231/C237/C238...
  • Page 448 “0” key, the drum turns for 60 seconds to supply ink inside the drum. 4) The ink roller blades [D] on both ends of the ink roller scrape off the built-up ink on the ends of the ink roller. C231/C237/C238 6-26...
  • Page 449 Because of this, the master eject process can be skipped when a new master is being made, if no master is detected on the drum. The drum master sensor uses the black patch [C] on the clamper for jam detection. ( 6.10.3) 6-27 C231/C237/C238...

  • Page 450: Overview

    The registration rollers [D] feed the paper. The print is made. NOTE: 1) A dedicated stepper motor (paper feed motor) controls the feed roller and the pick-up roller. 2) A dedicated stepper motor (registration motor) controls the registration roller. C231/C237/C238 6-28...
  • Page 451 3) The guides [G] help to feed paper that is not perfectly flat. 4) Paper feed start timing depends on the selected printing speed: see the Timing Charts. 6-29 C231/C237/C238...
  • Page 452 By loosening then moving the screw [D] up or down, the spring [E], which applies pressure to the friction pad block [F], moves up or down. The default position of the screw [D] is at the next to highest position. C231/C237/C238 6-30...
  • Page 453 When the high point of the cam [E] on the drum drive gear reaches the cam follower [F], the shaft [G] rotates clockwise (as seen from the operation side) to release the upper registration roller [D] from the lower registration roller. 6-31 C231/C237/C238...
  • Page 454 6.7.6 RE-FEEDING MECHANISM If the registration sensor detects a non-feed, the machine tries again. However, if the machine detects a non-feed the second time, the jam indicator lights. C231/C237/C238 6-32...
  • Page 455 Paper end detection The paper end sensor [G] under the paper table detects when the paper on the table runs out. Paper size detection [H]: Paper length sensor [I]: Paper width detection board 6-33 C231/C237/C238...
  • Page 456 These are especially useful when thin paper is used. The user can install the friction pads if they are using thin paper. C231/C237/C238 6-34...

  • Page 457: Procedure

    Rotates the transport belts [D]. NOTE: 1) The vacuum fan motor inside the unit holds the paper against the belts [D] C238D048.WMF to deliver the paper to the exit table. 2) The motor rotation speed depends on the selected print speed. 6-35 C231/C237/C238...
  • Page 458 When the gear [A] rotates, it drives the piston [B] back and forth. The piston moves forward and pushes a jet of air out through the nozzle [C]. This jet of air helps to separate the paper from the drum. C238D016.WMF C231/C237/C238 6-36...

  • Page 459: Mechanism

    [D] and held in the lower position. Therefore, after printing finishes, the cam follower is out of contact with the cam, and the exit pawl moves away from the drum to its normal position. C238D060.WMF 6-37 C231/C237/C238...

  • Page 460: Timing Chart

    TIMING CHART 6.9 TIMING CHART 6.9.1 MASTER EJECT / MASTER FEED C238D044.WMF C231/C237/C238 6-38...
  • Page 461 TIMING CHART 6-39 C231/C237/C238...
  • Page 462 TIMING CHART 6.9.2 MASTER WRAPPING C238D045.WMF C231/C237/C238 6-40...
  • Page 463 TIMING CHART 6-41 C231/C237/C238...
  • Page 464 TIMING CHART 6.9.3 PRINTING C238D046.WMF C231/C237/C238 6-42...
  • Page 465 TIMING CHART 6-43 C231/C237/C238...

  • Page 466: Jam Detection

    (pressure plate at lower limit), the E jam indicator lights. Just after turning on the main switch Jam check timing: Just after the main switch has been turned on. Check: If the master eject sensor is on (master detected), the E jam indicator lights. C231/C237/C238 6-44...

  • Page 467: Feeding In The Original

    Turning on the main switch/closing the DF cover Jam check timing: Just after turning the main switch on, and when the DF cover is closed. Check: If the DF registration sensor detects an original, the P jam indicator lights. 6-45 C231/C237/C238...
  • Page 468 Jam check timing: When the master is clamped in the clamper and cutting is taking place. Check: During master cutting, if the cutter HP sensor does not turn on (cutter does not reach home position) at the desired time, then the D jam indicator lights. C231/C237/C238 6-46...
  • Page 469 Changed “B jam” indicator Since this model has no LCD for written display messages, the conditons for the “B-jam” and “M” LEDs have been changed as follows. This is to clarify when the wrapping master around the drum should be removed. 6-47 C231/C237/C238...

  • Page 470: Notes

    Machine returns to normal and is able to print after the Start key is pressed, as the wrapping master is removed automatically. (It means “Master Eject”.) NOTE: When SP2-12 (Drum master sensor) is off, the “B-jam” and “M” LEDs cannot be cleared. The factory setting for this SP is on. C231/C237/C238 6-48...
  • Page 471 Jam check timing: When printing. Check: When the paper exit timing sensor turns on (drum at paper exit timing position), if the paper exit sensor detects paper, the C jam location indicator lights. Drum: 360 degrees = 1020 pulses 6-49 C231/C237/C238...
  • Page 473 SPECIFICATIONS...

  • Page 475: General Specifications

    Enlargement 122% 129% 115% 121% Full Size 100% 100% Reduction Zoom: 50% to 200%, in 1% steps Power Source: America, Taiwan 110 / 120 V, 50/60 Hz 5.0 A Europe, Asia 220 – 240 V, 50/60 Hz 3.0 A C231/C237/C238...
  • Page 476 Tables closed: 790 x 700 x 640 mm (31.1" x 27.6" x 25.2") Tables opened: 1360 x 700 x 600 mm (53.6" x 27.6" x 25.2") NOTE: Measurement Conditions 1) Without the ADF 2) Without the table Weight 80 kg (176.6 lb) (Excluding ADF, platen cover, ink, and master) C231/C237/C238...
  • Page 477 Black, Red, Blue, Green, Brown, Purple, Yellow, Navy, Maroon, Orange, Teal, and Gray Ink Storage Conditions: Temperature: -5 C to 40 C (Optimum conditions: 15 C to 25 C) Humidity: 10% to 95% RH (Optimum conditions: 20% to 70% RH) C231/C237/C238...
  • Page 478 SPECIFICATIONS Recommended maximum storage period: 18 months after production date Note: Avoid locations exposed to direct sunlight. Optional Equipment: Platen cover Auto document feeder Color drum A4 black drum Tape marker (dispenser) Interface board C231/C237/C238...
  • Page 479 DOCUMENT FEEDER C600...

  • Page 481: Overall Information

    SPECIFICATIONS 1. OVERALL INFORMATION 1.1 SPECIFICATIONS Original Size: Standard Size (Single-sided Mode only): A3 to A5, DLT to HLT Non-standard Size (Single-sided Mode only): Max. width 297 mm Min. width 105 mm Max. length 1,260 mm Min. length 128 mm Original Weight: 40 ~ 128 g/m (10 ~ 34 lbs.)

  • Page 482: Mechanical Component Layout

    MECHANICAL COMPONENT LAYOUT 1.2 MECHANICAL COMPONENT LAYOUT C600V101.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. Original table C600...

  • Page 483: Electrical Component Layout

    ELECTRICAL COMPONENT LAYOUT 1.3 ELECTRICAL COMPONENT LAYOUT C600V102.WMF 1. DF feed clutch 8. Original length sensor 1 2. Feed cover open sensor 9. DF transport motor 3. Original width sensor 10. Stamp solenoid 4. DF pick-up solenoid 11. Original set sensor 5.

  • Page 484: Electrical Component Description

    ELECTRICAL COMPONENT DESCRIPTION 1.4 ELECTRICAL COMPONENT DESCRIPTION Symbol Name Function Index No. Motors DF Transport Drives the transport and exit rollers Sensors DF Open Informs the CPU of the DF when the DF is opened and closed (for platen mode). Registration Detects the leading edge of the original to determine when to turn off the DF transport...

  • Page 485: Drive Layout

    DRIVE LAYOUT 1.5 DRIVE LAYOUT C600V103.WMF 1. DF feed clutch 5. 1st transport roller 2. DF transport motor 6. Separation roller 3. 2nd transport roller 7. Original feed belt 4. Exit roller 8. Pick-up roller C600...

  • Page 486: Original Size Detection

    ORIGINAL SIZE DETECTION 2. DETAILED SECTION DESCRIPTIONS 2.1 ORIGINAL SIZE DETECTION C600D104.WMF The DF has one width sensor [A] to detect the original width and two original length sensors (-1 [B] and -2 [C]) to detect the original length. The DF detects the original size through the combination of inputs from those sensors as shown in the table on the next page.
  • Page 487 ORIGINAL SIZE DETECTION Original Original Length 1 Length 2 A3 L (297 x 420) — — — B4 L (257 x 364) — — — A4 L (210 x 297) — — — — A4 S (297 x 210) — —...

  • Page 488: Pick-Up And Separation

    PICK-UP AND SEPARATION 2.2 PICK-UP AND SEPARATION C600D105.WMF C600D106.WMF When the print key is pressed, the DF pick-up solenoid [A] turns on and the entrance guide [B] lifts up the originals to the pick-up roller [C]. At the same time, the DF feed clutch [D] turns on.

  • Page 489: Original Transport And Exit Mechanism

    ORIGINAL TRANSPORT AND EXIT MECHANISM 2.3 ORIGINAL TRANSPORT AND EXIT MECHANISM C600D107.WMF When the leading edge of the original reaches the registration sensor [A], the DF transport motors turn off. After a short time the DF transport motors turn on again. The original is fed past the DF exposure glass [B], where it is scanned.

  • Page 490: Overall Electrical Circuit

    OVERALL ELECTRICAL CIRCUIT 2.4 OVERALL ELECTRICAL CIRCUIT Copier IOB Transport DF Drive Board Board Motor Driver DF Connection Sensors Clutch Solenoids C600D509.WMF The copier directly controls the DF pick-up solenoid, stamp solenoid, and DF feed clutch through the DF drive board. The sensor signals are directly sent to the copier through the DF drive board.

  • Page 491: Feed Unit Removal

    FEED UNIT REMOVAL 3. REPLACEMENT AND ADJUSTMENT 3.1 FEED UNIT REMOVAL C600R102.WMF 1. Open the DF feed cover [A]. 2. Slide the feed unit [B] in the direction of the arrow, then remove it. 3.2 SEPARATION ROLLER REPLACEMENT C600R105.WMF 1. Remove the feed unit. 2.

  • Page 492: Pick-Up Roller Replacement

    PICK-UP ROLLER REPLACEMENT 3.3 PICK-UP ROLLER REPLACEMENT C600R103.WMF 1. Remove the feed unit. 2. Remove the snap ring [A]. 3. Replace the pick-up roller [B]. 3.4 FEED BELT REPLACEMENT C600R104.WMF 1. Remove the feed unit. 2. Remove the E-ring [A], bearing [B], washers [C], and spring [D]. 3.

  • Page 493: Original Set Sensor Replacement

    ORIGINAL SET SENSOR REPLACEMENT 3.5 ORIGINAL SET SENSOR REPLACEMENT C600R106.WMF 1. Remove the DF feed cover. 2. While releasing the front and rear stoppers [A], open the transport guide [B]. 3. Replace the original set sensor [C]. 8-13 C600...

  • Page 494: Original Size Sensors Replacement

    ORIGINAL SIZE SENSORS REPLACEMENT 3.6 ORIGINAL SIZE SENSORS REPLACEMENT C600R107.WMF C600R108.WMF C600R113.WMF 1. Open the original table. 2. Remove the original guide [A] (3 screws). 3. Replace the following sensors: Original length sensor 1 [B] Original length sensor 2 [C] Original width sensor (1 screw) [D] Original trailing edge sensor [E] NOTE: To prevent incorrect size detection, clean the electrode [F] of the original...

  • Page 495: Rear Cover

    ORIGINAL EXIT TRAY/FRONT COVER/REAR COVER REMOVAL 3.7 ORIGINAL EXIT TRAY/FRONT COVER/REAR COVER REMOVAL C600R101.WMF 1. Open the DF feed cover. 2. Open the original table. 3. Remove the front cover [A] (2 screws). 4. Remove the rear cover [B] (2 screws). 5.

  • Page 496: Feed Clutch/Pick-Up Sol/Transport Motor Replacement

    FEED CLUTCH/PICK-UP SOL/TRANSPORT MOTOR REPLACEMENT 3.9 FEED CLUTCH/PICK-UP SOL/TRANSPORT MOTOR REPLACEMENT C600R109.WMF 1. Remove the rear cover (2 screws). - Feed Clutch - 2. Replace the feed clutch [A] (1 E-ring and 1 connector). - Pick-up Solenoid - 3. Replace the pick-up solenoid [B] (3 screws and 1 connector). - Transport Motor - 4.

  • Page 497: Front Cover

    DF FEED COVER REMOVAL 3.10 DF FEED COVER REMOVAL C600R110.WMF 1. Remove the front cover (2 screws) and the rear cover (2 screws). 2. Remove the turn guide [A] (2 screws [B]). 3. Remove the DF feed cover [C] (2 screws [D]). 3.11 REGISTRATION SENSOR REPLACEMENT C600R111.WMF 1.
  • Page 499 C248 SERVICE MANUAL...
  • Page 501 Rev. 02/2005 1. ESSENTIAL DIFFERENCES BETWEEN THE C237 AND C248 The C248 is the successor to the current C237. The function and operation of the model C237 and the new C248 are identical. The only exception is the color change of the outer plastic covers. ⇒...
  • Page 503 C267...

  • Page 505: Installation Requirements

    INSTALLATION REQUIREMENTS 1. INSTALLATION 1.1 INSTALLATION REQUIREMENTS Carefully select the installation location because environmental conditions greatly affect machine performance. 1.1.1 OPTIMUM ENVIRONMENTAL CONDITION 1. Temperature: 10 to 30 C (50 to 86 F) 2. Humidity: 20 to 90 %RH 3. Install the machine on a strong and level base. The machine must be level within 5mm (0.2") both front to rear left to right.

  • Page 506: Minimum Space Requirements

    INSTALLATION REQUIREMENTS 1.1.4 MINIMUM SPACE REQUIREMENTS Place the machine near a power source, providing minimum clearance as shown below. 200 mm (7.9") Rear 600 mm (23.6") Right 600 mm (23.6") Left C267I156.WMF 600 mm (23.6") Front 1.1.5 DIMENSIONS 750 mm (29.5") 686 mm (27.0") with ADF 633 mm (24.9")

  • Page 507: Main Body And Peripherals

    INSTALLATION REQUIREMENTS 1.1.6 MAIN BODY AND PERIPHERALS This is a list of the peripheral devices that can be installed with the digital duplicator. C267I159.WMF Model Name Comments C267 Digital duplicator Main Machine C642 Auto document feeder B406 Platen cover C643/C647/C648 Color drum Optional drum –...

  • Page 508: Power Sockets For Peripherals

    INSTALLATION REQUIREMENTS 1.1.7 POWER SOCKETS FOR PERIPHERALS CAUTION Rating Voltage for Peripherals Make sure to plug the cables into the correct sockets. “ Rating Voltage of Output Connector for Accessory: Max. DC 24 V” Tape Dispenser “ Rating Voltage of Output Connector for Accessory: C267I104.WMF Max.

  • Page 509: Accessory Check

    2. Paper Delivery Table Side Plate Guide .......2 3. Paper Feed Side Pad ............2 4. Emblem Cover (C267-80, -83, -92, -93) ......1 5. Emblem – Ricoh DX 3440 (C267-80) ........1 6. Emblem – Gestetner DX 3440 (C267-80)......1 7. Warranty Letter on carton box (C267-76, -78) .....1 8.

  • Page 510: Installation Procedure

    INSTALLATION PROCEDURE Installation Procedure CAUTION To avoid serious injury, do not connect the power plug to the machine until you are instructed to do so. C267I102.WMF 1. Unpack the machine and remove all the wrapping. C267R084.WMF 2. When you install the optional table: •...
  • Page 511 INSTALLATION PROCEDURE C267I103.WMF C267I111.WMF C267I106.WMF C267...
  • Page 512 INSTALLATION PROCEDURE 3. Remove the filament tape as shown above. C267I109.WMF C267I151.WMF 4. Remove the string securing the covers and units as shown above. C267...

  • Page 513: Installation Procedure

    INSTALLATION PROCEDURE C267I110.WMF 5. Open the paper table. 6. Pull out the master making unit, and take out the accessory bag [A]. 7. Remove the filament tape and string securing the covers and units. C267I907.WMF 8. Insert both spools into a new master roll. C267I152.WMF C267...
  • Page 514 INSTALLATION PROCEDURE 9. Install the master roll, and open the master making unit cover, C267I153.WMF 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. C267I154.WMF 11.

  • Page 515: Installation Procedure

    INSTALLATION PROCEDURE C267I107.WMF 13. Open the front door. 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.

  • Page 516: Notes

    INSTALLATION PROCEDURE C267I105.WMF 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. NOTE: When printing on A4 SEF, 81/2" SEF, B5 JIS LEF and SEF size paper and thin paper, you should attach the side plate guides to the side plates of the paper delivery tray.

  • Page 517: Changing The Operation Panel Language

    INSTALLATION PROCEDURE Changing the operation panel language There are ten languages in the machine. If you need to change the language, use the User Tools menu to set the language. • On the operation panel, press the User Tools key. •...

  • Page 518: Accessory Check

    INSTALLATION PROCEDURE 1.2.2 COLOR DRUM (OPTION) Accessory Check Check the quantity and condition of the accessories in the box against this list: Description Quantity 1. Color Indicator Decal ............5 Installation Procedure CAUTION To avoid serious injury, do not connect the power plug to the machine until you are instructed to do so.

  • Page 519: Adf (Option)

    INSTALLATION PROCEDURE 1.2.3 ADF (OPTION) Accessory Check C267I908.WMF Check the quantity and condition of the accessories in the box against this list: Description Quantity 1. Stepped Screw ..............2 2. Screws ................2 3. Screwdriver Tool ..............1 4. DF Exposure Glass ............1 5.

  • Page 520: Others

    INSTALLATION PROCEDURE Installation Procedure CAUTION To avoid serious injury, do not connect the power plug to the machine until you are instructed to do so. C267I909.WMF 1. Remove the strips of tape. C267I202.WMF 2. Remove the left scale [A] ( x 2).
  • Page 521 INSTALLATION PROCEDURE C267I203.WMF 6. Mount the DF by aligning the holes [G] in the DF with the stepped screws, then slide the DF to the front as shown. 7. Secure the DF unit with two screws [H]. 8. Connect the cables [I] to the main body. C267I910.WMF 9.

  • Page 522: Platen Cover (Option)

    INSTALLATION PROCEDURE 1.2.4 PLATEN COVER (OPTION) Accessory Check Check the quantity and condition of the accessories in the box against this list: Description Quantity 1. Stepped Screw ..............2 Installation Procedure CAUTION To avoid serious injury, do not connect the power plug to the machine until you are instructed to do so.

  • Page 523: For C238 -

    INSTALLATION PROCEDURE 1.2.5 TAPE DISPENSER (OPTION) Accessory Check Check the quantity and condition of the accessories in the box against this list: Description Quantity 1. Knob Screw (For C210, C217, C218, C219, C222, C223, C225, C228, C238, C237, C238, C248, C249, C264 and C267) ................2 2.
  • Page 524 INSTALLATION PROCEDURE C267I901.WMF 4. Connect the harness from the tape dispenser to the connector [B]. 5. Remove the screw [C] that is beside the connector [B]. Reuse the screw to secure the bracket [D], as shown. C267I902.WMF 6. Open the master eject unit. 7.
  • Page 525 INSTALLATION PROCEDURE C238I519.PCX 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]. NOTE: Be sure that the tape is installed in the proper direction. If it is not, the tape dispenser will not work correctly.
  • Page 526 INSTALLATION PROCEDURE C238I521.PCX 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. C267 1-22...

  • Page 527: Printer Unit Vc-20 (Option)

    INSTALLATION PROCEDURE 1.2.6 PRINTER UNIT VC-20 (OPTION) Accessory Check Make sure that you have all the accessories listed below. C267I906.WMF Description Quantity 1. VC-20 Interface Board ............1 2. Screws.................3 3. Installation CD ..............1 4. Quick Install Guide...............1 5. Safety Information..............1 1-23 C267...

  • Page 528: Installation Procedure

    INSTALLATION PROCEDURE Installation Procedure CAUTION To avoid serious injury, do not connect the power plug to the machine until you are instructed to do so. C267I101.WMF 1. Remove the small rear cover [A] in the rear cover. ( x 2) 2.

  • Page 529: Paper Feed

    PREVENTIVE MAINTENANCE 2. PREVENTIVE MAINTENANCE The following items should be maintained periodically. There are two sets of intervals - one based on time and the other based on print count or original count. For maintenance items with entries in both of them, use whichever comes first. Symbol Key: C: Clean R: Replace L: Lubricate WARNING Turn off the main power switch and unplug the machine before performing any...

  • Page 530: Notes

    PREVENTIVE MAINTENANCE Interval Time Print Counter Note Item 5Y 600K 1.2M 2.4M 6M Exit sensor Dry cloth Dry or damp Press roller cloth Motor oil Paper delivery unit bushings (SAE #20) Grease Drum drive gears (Alvania #2) Paper feed clutch Paper delivery belts Interval Time...
  • Page 531 GENERAL CAUTION 3. REPLACEMENT AND ADJUSTMENT 3.1 GENERAL CAUTION CAUTION Turn off the main power switch and unplug the machine before attempting any of the procedures in this section. 3.2 COVERS 3.2.1 FRONT COVER / FRONT DOOR C267R001.WMF C267R083.WMF [A]: Front cover ( x 9) [B]: Front door ( x 4)
  • Page 532 COVERS 3.2.2 OPERATION PANEL 45 ° 45 ° 45 ° 45 ° C267R002.WMF Front cover ( 3.2.1) [A]: Operation panel ( x 5, x 2, x 3) 3.2.3 REAR COVER C267R003.WMF [A]: Rear cover ( x 9) C267...
  • Page 533 COVERS 3.2.4 UPPER COVERS C267R004.WMF [A]: Left upper cover ( x 2) [B]: Top rear cover ( x 1) [C]: Right upper cover ( x 1) C267...
  • Page 534 BOARDS 3.3 BOARDS 3.3.1 MPU C267R007.WMF • Rear cover ( 3.2.3) [A]: MPU ( x 10, x 18, 2 ribbon cables) NOTE: 1) Take the NVRAM [B] from the old board and put it in the socket on the new board. 2) Adjust the master end sensor ( 3.5.4) after installing the new MPU.
  • Page 535 BOARDS 3.3.2 PSU NOTE: When the PSU is replaced, the thermal head voltage returns to the default. Adjust the thermal head voltage ( 3.5.7) after installing the new board. C267R005.WMF PSU board • Rear cover ( 3.2.3) [A]: PSU ( x 6, x 7) NOTE: The split washer screw [B] is used for grounding.

  • Page 536: Exposure Glass/Df Exposure Glass, Scales

    SCANNER 3.4 SCANNER 3.4.1 EXPOSURE GLASS/DF EXPOSURE GLASS, SCALES C267R008.WMF Exposure Glass [A]: Left scale ( x 2) [B]: Rear scale ( x 3) [C]: Exposure glass NOTE: 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.

  • Page 537: Lens Block

    SCANNER 3.4.2 LENS BLOCK CAUTION: 1) Do not touch the paint-locked screws on the lens block. The position of the lens assembly (black part) is adjusted before shipment. 2) Do not grasp the PCB or the lens assembly when handling the lens block.

  • Page 538: Exposure Lamp, Lamp Stabilizer Board

    SCANNER 3.4.3 EXPOSURE LAMP, LAMP STABILIZER BOARD C267R902.WMF • Exposure glass ( 3.4.1) 1. Slide the first scanner to a position where the front end of the lamp is visible. 2. Place one hand under the lamp stabilizer board [A] and release the hook [B]. 3.

  • Page 539: Scanner Motor

    SCANNER 3.4.4 SCANNER MOTOR C267R010.WMF • Rear cover ( 3.2.3) • Exposure glass ( 3.4.1) [A]: Scanner motor ( x 3, x 1, x 1, 1 spring, 1 belt) NOTE: 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.

  • Page 540: Platen Cover Sensor

    SCANNER 3.4.6 PLATEN COVER SENSOR C267R082.WMF • Top rear cover ( 3.2.4) [A]: Platen cover sensor ( x 1). C267 3-10...

  • Page 541: Adjusting The Scanner Position

    SCANNER 3.4.7 ADJUSTING THE SCANNER POSITION CAUTION Grasp the front and rear ends (not the middle) of the first scanner when you manually move it. The first scanner may be damaged if you press, push, or pull the middle part of the scanner. Overview C267R903.WMF Adjust the scanner positions at these times:...

  • Page 542: Adjusting The Belt Contact Points For The First Scanner

    SCANNER The two actions above have the same objectives: to align the following holes. scanner [D], frame [E], arm of second scanner [F], and frame [G] The scanner positions are correct when these holes are all aligned. Adjusting the Belt Contact Points for the First Scanner C267R905.WMF •...

  • Page 543: Adjusting The Belt Contact Points For The Second Scanner

    SCANNER Adjusting the Belt Contact Points for the Second Scanner C267R081.WMF • ADF or platen cover • Front cover ( 3.2.1) • Operation panel ( 3.2.2) • Rear cover ( 3.2.3) • Top rear cover ( 3.2.4) • Left upper cover ( 3.2.4) •...
  • Page 544 SCANNER C267R906.WMF 3. Loosen the 2 screws [D]. 4. Slide the 2nd scanner to align the following holes and marks ( Overview): • Align all four holes: 1 scanner, frame, arm of second scanner and frame 5. Insert the positioning tools [E] [F] through the holes. 6.

  • Page 545: Master Making Unit

    MASTER FEED 3.5 MASTER FEED 3.5.1 MASTER MAKING UNIT C267R016.WMF [A]: Master making unit cover ( x 3) [B]: Master making unit ( x 2, x 4, x 1, x 1)) 3.5.2 MASTER MAKING UNIT SET SWITCHES C267R036.WMF Master making unit ( 3.5.1) [A]: Master making unit set switch ( x 1,...
  • Page 546 MASTER FEED C267R040.WMF Front cover ( 3.2.1) [B]: Master making unit set switch ( x 1, x 1) NOTE: There are two master making unit set switches for safety. Both sensors must be on or the machine will not start. C267 3-16...

  • Page 547: Thermal Head

    MASTER FEED 3.5.3 THERMAL HEAD C267R054.WMF • Master making unit ( 3.5.1) [A]: Open the platen roller unit. [B]: Thermal head upper cover ( x 2) [C]: Thermal head side cover ( x 1) C267R055.WMF • Close the platen roller unit. [D]: Thermal head ( x 2) 3-17...

  • Page 548: Installation

    MASTER FEED Installation C267R056.WMF If the following remarks are not followed, the thermal head will be installed incorrectly. 1. Fit the base’s springs [A] over the protrusions [B] on the underside of the thermal head (5 points). 2. While fitting the tops of the springs [A] over the protrusions on the underside of the thermal head, hook the lock pawls [C] of the thermal head onto the base (3 lock pawls).

  • Page 549: Master Set Cover Sensor

    MASTER FEED 3.5.4 MASTER SET COVER SENSOR C267R057.WMF Master making unit ( 3.5.1) [A]: Master set cover sensor ( x 3, x 1) 3.5.5 MASTER END SENSOR C267R058.WMF Master making unit ( 3.5.1) Thermal head upper cover ( 3.5.3) Thermal head side cover ( 3.5.3) [A]: Master end sensor ( x 2,...

  • Page 550: Cutter Unit

    MASTER FEED 3.5.6 CUTTER UNIT C267R059.WMF C267R060.WMF Master making unit ( 3.5.1) [A]: Bracket ( x 2) [B]: Shaft ( x 2) [C]: Bracket ( x 2) [D]: Cutter unit ( x 3, x 1, x 1) NOTE: To remove the screw [E], you must slide the thermal head a small distance towards the paper feed table.

  • Page 551: Thermal Head Voltage Adjustment

    MASTER FEED 3.5.7 THERMAL HEAD VOLTAGE ADJUSTMENT CAUTION This adjustment is always required when the thermal head or PSU has been replaced. Purpose: To maintain master making quality and extend the lifetime of the thermal head. Standard: Refer to the voltage value (X) printed on the thermal head. The value varies from one thermal head to another.

  • Page 552: Master End Sensor Adjustment

    MASTER FEED 3.5.8 MASTER END SENSOR ADJUSTMENT Purpose: To ensure that the sensor detects the end mark (a solid black area) on the master roll. Standard: 2.0 ± 0.1 volts Tools: The core of a used master roll (the core just before a master end display appears) C267R900.WMF •...

  • Page 553: Master Eject Unit

    MASTER EJECT 3.6 MASTER EJECT 3.6.1 MASTER EJECT UNIT C267R017.WMF Open the master eject unit. C267R018.WMF [A]: Master eject unit ( x 3, x 1) 3-23 C267...

  • Page 554: Master Eject Rollers

    MASTER EJECT 3.6.2 MASTER EJECT ROLLERS C267R062.WMF • Master eject unit ( 3.6.1) [A]: Gears ( x 1) [B]: Lower master eject roller ( x 2) [C]: Upper master eject roller ( x 2, 2 springs) 3.6.3 MASTER EJECT MOTOR / PRESSURE PLATE MOTOR C267R063.WMF Master eject unit ( 3.6.1)
  • Page 555 MASTER EJECT 3.6.4 DRUM MASTER SENSOR / MASTER EJECT SENSOR / EJECT BOX SET SENSOR C267R064.WMF Master eject unit ( 3.6.1) 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)

  • Page 556: Pressure Plate Hp Sensor / Pressure Plate Limit Sensor

    MASTER EJECT 3.6.5 PRESSURE PLATE HP SENSOR / PRESSURE PLATE LIMIT SENSOR C267R065.WMF Master eject unit ( 3.6.1) Master eject box [A]: Pressure plate HP sensor ( x 1) [B]: Gear ( x 1, 1 pin) [C]: Pressure plate limit sensor ( x 1) 3.6.6 AIR KNIFE FAN MOTOR C267R066.WMF...

  • Page 557: Master Eject Position Sensor

    MASTER EJECT 3.6.7 MASTER EJECT POSITION SENSOR C267R035.WMF • Rear cover ( 3.2.3) [A]: Master eject position sensor ( x 1, x 1, x 1) 3.6.8 MASTER CLAMPER OPENING UNIT C267R023.WMF • Rear cover ( 3.2.3) [A]: Master clamper opening unit ( x 3, x 2) 3-27...

  • Page 558: Pick-Up Roller / Paper Feed Roller / Friction Pad

    PAPER FEED 3.7 PAPER FEED 3.7.1 PICK-UP ROLLER / PAPER FEED ROLLER / FRICTION PAD 0 to 4 mm 0 to 4 mm C267R019.WMF 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)

  • Page 559: Paper Table Lower Limit Sensor

    PAPER FEED 3.7.2 PAPER TABLE LOWER LIMIT SENSOR C267R034.WMF • Rear cover ( 3.2.3) [A]: Paper table lower limit sensor ( x 1, x 1) 3-29 C267...

  • Page 560: Paper Height Sensor 1 / 2

    PAPER FEED 3.7.3 PAPER HEIGHT SENSOR 1 / 2 C267R036.WMF C267R037.WMF • Master making unit ( 3.5.1) [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 (...

  • Page 561: Paper End Sensor

    PAPER FEED 3.7.4 PAPER END SENSOR C267R029.WMF C267R038.WMF Rear cover ( 3.2.3) [A]: Paper table ( x 1, x 2) [B]: Paper table bottom plate ( x 5, 3 washers) [C]: Paper end sensor ( x 2, x 1) 3-31 C267...

  • Page 562: Paper Table Motor

    PAPER FEED 3.7.5 PAPER TABLE MOTOR C267R040.WMF Front cover ( 3.2.1) [A]: Paper table motor ( x 2, x 1) 3.7.6 PAPER FEED CLUTCH C267R022.WMF Rear cover ( 3.2.3) MPU ( 3.3.1) [A]: Paper feed clutch bracket ( x 2) [B]: Paper feed clutch ( x 1, x 1)

  • Page 563: Paper Separation Pressure Adjustment

    PAPER FEED 3.7.7 PAPER SEPARATION PRESSURE ADJUSTMENT The position of the screw can be changed in order to change the amount of pressure exerted by the friction pad. This adjustment can be done: • When feeding special paper, especially thick paper •...

  • Page 564: Press Roller

    PRINTING 3.8 PRINTING 3.8.1 PRESS ROLLER C267R907.WMF CAUTION Take care to avoid possible injury. If the printing pressure release arms disengage, the press roller will be pulled upwards suddenly. • 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.

  • Page 565: Registration Sensor

    PRINTING 3.8.2 REGISTRATION SENSOR C267R041.WMF [A]: Registration sensor ( x 2, x 1) 3.8.3 FEED START TIMING SENSOR C267R042.WMF [A]: Feed start timing sensor ( x 1, x 1) 3-35 C267...
  • Page 566 PRINTING 3.8.4 2 FEED TIMING SENSOR C267R043.WMF Open the master eject unit [A]: 2 feed timing sensor ( x 1, x 1) C267 3-36...

  • Page 567: Registration Motor

    PRINTING 3.8.5 REGISTRATION MOTOR 0±0.5 mm C267R021.WMF Rear cover ( 3.2.3) MPU ( 3.3.1) [A]: Registration motor (spring, x3, belt, x 1) NOTE: 1) The side of the motor with the harness [B] should face downward, as shown in the diagram. 2) The flange of the gear should face towards the motor as shown in the diagram.

  • Page 568: Registration Roller

    PRINTING 3.8.6 REGISTRATION ROLLER C267R029.WMF C267R030.WMF Front cover ( 3.2.1) Rear cover ( 3.2.3) [A]: Paper table ( x 1, x 2) [B]: Plate ( x 4) MPU ( 3.3.1) PSU ( 3.3.2) Registration motor ( 3.8.5) C267 3-38...
  • Page 569 PRINTING 0±0.5 mm C267R028.WMF C267R031.WMF [C]: Gear [D]: Bearing ( x 2) [E]: Registration roller NOTE: The flange of gear [C] should face towards the machine, as shown in the diagram. 3-39 C267...

  • Page 570: Press Roller Release Solenoids

    PRINTING 3.8.7 PRESS ROLLER RELEASE SOLENOIDS C267R039.WMF C267R026.WMF Front cover ( 3.2.1) Rear cover ( 3.2.3) [A]: Press roller release solenoid ( x 2, x 1) NOTE: Adjust the press roller release lever ( 3.8.8) after installing the new solenoid. C267 3-40...

  • Page 571: Press Roller Release Lever Adjustment

    PRINTING 3.8.8 PRESS ROLLER RELEASE LEVER ADJUSTMENT Purpose: To maintain the correct clearance between the press roller arms and press roller lock levers. This ensures that the press roller is correctly released and pressed against the drum when the press roller release solenoid is energized.

  • Page 572: Printing Pressure Adjustment

    PRINTING 1. Turn the drum manually until the drum master clamper on the drum moves into the lowest position. (This is when the high points of the cams on the drum flanges meet with the cam followers on both ends of the press roller.) •...

  • Page 573: Preparation

    DRUM 3.9 DRUM 3.9.1 PREPARATION Before attempting any of the procedures in this section, wipe off the ink around the ink roller. To do this, set SP2-10 (ink detection) to off, and feed paper until ink ends. 3.9.2 CLOTH SCREEN C267R909.WMF C267R073.WMF •...

  • Page 574: Installation

    DRUM Installation C267R068.WMF Inside Outside C267R070.WMF C267 3-44...
  • Page 575 DRUM C267R067.WMF • Do not scratch the cloth screen or metal screen. • 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.

  • Page 576: Clamper / Metal Screen

    DRUM 3.9.3 CLAMPER / METAL SCREEN C267R069.WMF C267R074.WMF • Remove the drum • Cloth screen ( 3.9.2) [A]: Clamper lever (1 hexagon screw) [B]: Clamper - open the clamping plate [C], then remove the clamper. NOTE: 1) Do not allow ink to get on the inside of the clamping plate [C]. Otherwise, the master may slip off and the image position on the prints will move toward the trailing edge of the prints during a printing run.

  • Page 577: Installation

    DRUM Installation C267R071.WMF C267R072.WMF • Make sure that the correct end of the metal screen is overlapping. (The right side overlaps, as viewed from the non-operation side, as shown above.) • The 4 screws holding the drum master clamper are longer than the 12 screws holding the metal screen, although they are similar in appearance.
  • Page 578 DRUM NOTE: The side [E] with the part number printed on it must be on the top. C267 3-48...

  • Page 579: Ink Pump Unit

    DRUM 3.9.4 INK PUMP UNIT C267R075.WMF • Remove the drum • Cloth screen ( 3.9.2) • Clamper / Metal screen ( 3.9.3) [A]: Ink pump unit ( x 1, x 2) 3-49 C267...

  • Page 580: Ink Roller Unit / Ink Roller One-Way Clutch

    DRUM 3.9.5 INK ROLLER UNIT / INK ROLLER ONE-WAY CLUTCH C267R910.WMF • Wipe off the ink around the ink roller beforehand (use SP2-10). • Remove the drum • Cloth screen ( 3.9.2) • Clamper / Metal screen ( 3.9.3) [A]: Connector cover ( x 2, x 2) [B]: Ink socket (...
  • Page 581 DRUM C267R901.WMF [H]: Ink roller unit [I]: Ink roller one-way clutch 3-51 C267...

  • Page 582: Doctor Roller Gap Adjustment

    DRUM 3.9.6 DOCTOR ROLLER GAP ADJUSTMENT Purpose: To control the ink thickness around the ink roller. Standard: A 0.07mm gauge passes, but a 0.09mm gauge does not. Tools: Thickness gauge CAUTION Normally the doctor roller gap is not adjusted or changed. It tends to be difficult to change in the field.

  • Page 583: Using An Oscilloscope

    DRUM 3.9.7 INK DETECTION ADJUSTMENT Using an Oscilloscope Purpose: To ensure that the CPU detects a no ink condition. Standard: 4.0 ± 0.2 μsec NOTE: 1) Before attempting this procedure, wipe off the ink around the ink roller. To do this, set SP2-10 (Ink Detection) to OFF, and feed paper until ink ends.

  • Page 584: Simple Method

    DRUM Simple Method Purpose: To ensure that the CPU detects a no ink condition. NOTE: 1) Before attempting this procedure, wipe off the ink around the ink roller. To do this, set SP2-10 (Ink Detection) to OFF, and feed paper until ink ends.

  • Page 585: Paper Delivery

    PAPER DELIVERY 3.10 PAPER DELIVERY 3.10.1 PAPER DELIVERY UNIT C267R046.WMF C267R047.WMF 3-55 C267...
  • Page 586 PAPER DELIVERY C267R048.WMF • Rear cover ( 3.2.3) [A]: Paper table ( x 2) [B]: Paper delivery cover ( x 5) [C]: Paper delivery unit ( x 2, x 2, x 1) C267 3-56...

  • Page 587: Delivery Belt / Paper Exit Sensor / Vacuum Fan Motor / Paper Delivery Unit Bushings

    PAPER DELIVERY 3.10.2 DELIVERY BELT / PAPER EXIT SENSOR / VACUUM FAN MOTOR / PAPER DELIVERY UNIT BUSHINGS C267R049.WMF C267R050.WMF • Remove the paper delivery unit ( 3.10.1) [A]: Vacuum fan motor bracket ( x 4) [B]: Vacuum fan motor ( x 2) [C]: Paper exit sensor ( x 1)

  • Page 588: Clearance Adjustment

    PAPER DELIVERY 3.10.3 EXIT PAWL ADJUSTMENT Purpose: To ensure that the exit pawls can move out of the way of the drum master clamper while the drum is rotating. Clearance adjustment Standard: Within 1.15 ± 0.15 mm C267R913.WMF C267R914.WMF • Front cover ( 3.2.1) •...

  • Page 589: Timing Adjustment

    PAPER DELIVERY NOTE: The drum turns to home position automatically immediately after the power switch is turned on. 2. 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.
  • Page 590 PAPER DELIVERY C267R052.WMF 1. Turn the drum manually until the recess in the drum drive gear meets the positioning hole [A] in the bracket, as shown. 2. Loosen screw [B] then screw [C] in that order (do not remove them). Make sure that the bracket [D] becomes free from engagement and the cam follower [E] contacts the drum flange.

  • Page 591: Main Motor

    MAIN DRIVE 3.11 MAIN DRIVE 3.11.1 MAIN MOTOR C267R029.WMF C267R030.WMF Rear cover ( 3.2.3) MPU ( 3.3.1) PSU ( 3.3.2) [A]: Paper table ( x 1, x 2) [B]: Plate ( x 4) 3-61 C267...
  • Page 592 MAIN DRIVE 0±0.5 mm C267R021.WMF [C]: Registration motor (spring, x3, belt) NOTE: 1) The side of the motor with the harness [D] should face downward, as shown in the diagram. 2) The flange of the gear should face towards the motor, as shown in the diagram.
  • Page 593 MAIN DRIVE C267R027.WMF Paper feed clutch ( 3.7.2) [F]: Drive bracket ( x 8) C267R032.WMF [G]: Main motor ( x 1, x 4) NOTE: Adjust the main drive timing belt ( 3.11.2) after installing the new main motor. 3-63 C267...

  • Page 594: Main Drive Timing Belt Adjustment

    MAIN DRIVE 3.11.2 MAIN DRIVE TIMING BELT ADJUSTMENT After the timing belt is replaced, correct belt tension must be applied. C267R053.WMF • Rear cover ( 3.2.3) • MPU ( 3.3.1) 1. Loosen the screws [A], [B], and [C]. 2. Move the tension roller [D] to the right with a screwdriver [E] as shown. 3.

  • Page 595: Main Motor Pulley Position

    MAIN DRIVE 3.11.3 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 46.3±0.3 mm C267R033.WMF NOTE: Tight the screws alternately little by little. Do not tighten them completely one by one.

  • Page 596: Firmware Update (I/O Rom)

    FIRMWARE UPDATE (I/O ROM) 3.12 FIRMWARE UPDATE (I/O ROM) The I/O control firmware in the EPROM on the MPU can be updated by replacing the EPROM. C267R045.WMF 1. Before upgrading the I/O ROM firmware, check the current ROM version with SP1-74.

  • Page 597: Color Drum

    COLOR DRUM 3.14 COLOR DRUM 3.14.1 INK PUMP ADJUSTMENT Purpose: To ensure the smooth operation of the ink pump plunger by properly positioning its holder. C267R915.WMF • Remove the drum • Cloth screen ( 3.9.2) • Clamper / Metal screen ( 3.9.3) 1.
  • Page 598 COLOR DRUM C267R916.WMF 4. Check that the piston motion is smooth. 5. If the motion is stiff, loosen the pump screws [E] and adjust the pump position. 6. After tightening, repeat step 4 and step 5. C267R917.WMF 7. Re-tighten the two screws [F]. 8.
  • Page 599 SERVICE CALL CODES 4. TROUBLESHOOTING 4.1 SERVICE CALL CODES NOTE: 1) If the problem concerns electrical circuit boards, first disconnect then reconnect the connectors before replacing the PCBs. 2) If the problem concerns a motor lock, first check the mechanical load before replacing motors or sensors.
  • Page 600 SERVICE CALL CODES 28 March 2006 Description/Definition Points to Check E-12 Pressure Plate error Pressure plate drive The pressure plate home position sensor Pressure plate motor does not turn on within 6 seconds during Plate position sensors initialization. Master eject error Both the pressure plate home position and pressure plate limit sensors turn on when the main SW is turned on.

  • Page 601: Electrical Component Defects

    ELECTRICAL COMPONENT DEFECTS 4.2 ELECTRICAL COMPONENT DEFECTS C267T900.WMF 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 4.2.1 DRUM Name State Symptoms Feed start timing...

  • Page 602: Paper Eject

    ELECTRICAL COMPONENT DEFECTS 28 March 2006 4.2.2 PAPER EJECT Name State Symptoms Paper Exit Sensor Open The “C” jam indicator is lit. The “B” jam indicator is lit when a copy is Shorted made. 4.2.3 PAPER FEED Name State Symptoms Paper Registration Open The “AB”...
  • Page 603 ELECTRICAL COMPONENT DEFECTS 4.2.6 MASTER EJECT Name State Symptoms Drum Master Sensor The “B” jam indicator is lit when print is started. (Print without master) Master does not eject The “D” jam indicator is lit. Pressure Plate Limit Open E-12 is displayed. Sensor Shorted The “Full eject master”...
  • Page 604 ELECTRICAL COMPONENT DEFECTS 28 March 2006 4.2.8 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 C267...
  • Page 605 DIP SW, LED, VR, TP, AND FUSE TABLES 4.3 DIP SW, LED, VR, TP, AND FUSE TABLES 4.3.1 TEST POINTS Usage GND-a TP10 TP11 +5VE TP23 Ink Detection Pulse TP25 Standard Pulse TP28 GND-a 4.3.2 POTENTIOMETERS Usage Ink detection adjustment Master End Sensor Adjustment Power Supply Unit Usage...
  • Page 606 DIP SW, LED, VR, TP, AND FUSE TABLES 28 March 2006 FUSES Rated FUSE # Voltage Related Devices Current FU 1 24 V DC Ink Pump Motor FU 2 5 V DC UC2 PC Controller Rated FUSE # Voltage Related Devices Current FU 700 6.3 A...

  • Page 607: Using Service Program Modes

    ACCESSING SP MODES 5. SERVICE PROGRAM MODE NOTE: The Service Program Mode is for use by service representatives only so that they can properly maintain product quality. If this mode is used by anyone other than service representatives for any reason, data might be deleted or settings might be changed.

  • Page 608: How To Select A Program Number

    HOW TO SELECT A PROGRAM NUMBER 5.1.2 HOW TO SELECT A PROGRAM NUMBER C267S900.WMF 1. Using the number keys [A] or the keys [B], enter the desired main menu number, then press the Enter key [C] or the OK key [D]. 2.

  • Page 609: Copy Data

    SP TABLE (SP 1-XXX) COPY DATA 5.2.1 SP TABLE (SP 1-XXX) Menu Items Total master counter Total print counter D - master clamp jam E - master eject jam E - master compressing jam A - paper non-feed jam A - paper registration jam B - paper wrapping jam C - paper delivery jam P - original feed - in jam...

  • Page 610: Basic Settings

    SP TABLE (SP 2-XXX) 5.3 BASIC SETTINGS 5.3.1 SP TABLE (SP 2-XXX) Menu Items Default Settings Default print speed 1 to 3 Default image position -10.0mm to +10.0mm (0.5mm interval) Destination code Not used (Ink) 0 / 2- Image position display 0:Slow 1:Normal 2:Fast Ink detection board Off/On (Off is used for tests, and...

  • Page 611: Sp2-33: Re-Feeding

    SP2-6: IMAGE POSITION DISPLAY 5.3.2 SP2-6: IMAGE POSITION DISPLAY When the user moves the image position on the operation panel, this SP controls the length of time that the adjustment value is shown on the display before the screen goes back to the previous display. ‘Slow’...

  • Page 612: Sp2-62: T/H Swing Amount

    SP2-62: T/H SWING AMOUNT 5.3.7 SP2-62: T/H SWING AMOUNT Settings: +-1 to +-5 mm Default: 2 mm 5.3.8 SP2-80: AUTO OFF AT UNUSUAL VOLTAGE There is an automatic detection system for unexpected voltage surges, featuring automatic shut-off and data logging features. 5.3.9 SP2-95: PAPER TABLE STANDBY POSITION.

  • Page 613: Sp3-1: Input The Present Time

    SP TABLE (SP 3-XXX) SYSTEM SETTINGS 5.4.1 SP TABLE (SP 3-XXX) Menu Items Default Settings Input the present time (00/01/01 0:00) 99/12/31 23:59 Input TEL number Input serial number Input installation data (00/01/01) 99/12/31 Key counter setting No/Yes Key card setting (Japan No/Yes only) 5.4.2 SP3-1: INPUT THE PRESENT TIME...

  • Page 614: Sp3-4: Input Installation Date

    SP3-4: INPUT INSTALLATION DATE 5.4.3 SP3-4: INPUT INSTALLATION DATE 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).

  • Page 615: Input Mode

    SP TABLE (SP 4-XXX) INPUT MODE 5.5.1 SP TABLE (SP 4-XXX) Menu Items Menu Items Scanner HP sensor 60 ADF connecting signal Platen cover sensor 61 ADF cover sensor Master eject unit open SN 62 ADF registration sensor Master making unit set SW 1 64 ADF original set sensor 69 ADF open sensor Master making unit set SW 2...

  • Page 616: Output Mode

    SP TABLE (SP 5-XXX) OUTPUT MODE 5.6.1 SP TABLE (SP 5-XXX) Menu Items Menu Items Exposure lamp (xenon lamp) ADF motor Scanner motor - scan ADF feed clutch Scanner motor - return ADF pick-up solenoid Scanner to HP Key counter signal Master feed motor –...

  • Page 617: Adjustment

    SP TABLE (SP 6-XXX) ADJUSTMENT 5.7.1 SP TABLE (SP 6-XXX) Menu Items Default Settings Main-scan position – platen -5.0 to 5.0 mm Main-scan position – ADF -5.0 to 5.0 mm Scan start position – platen -2.0 to 5.0 mm Scan start position - ADF -5.0 to 5.0 mm Scanning speed - platen -5.0 to 5.0 %...

  • Page 618: Sp Table

    SP TABLE (SP 6-XXX) Menu Items Default Settings 110 Paper Regist: skip: 80rpm -40 to 40 111 Paper Regist: skip: 100rpm -40 to 40 112 Paper Regist: skip: 130rpm -40 to 40 116 Paper middle bulge 30rpm (Do not -100 to 100 Adjust) 117 Paper middle bulge 60rpm (Do not -100 to 100...

  • Page 619: Sp6-10: Master Writing Speed

    SP6-10: MASTER WRITING SPEED Menu Items Default Settings 157 Paper front bulge A4 60rpm(Do not -90 to 8 Adjust) 158 Paper front bulge A4 80rpm(Do not -90 to 8 Adjust) 159 Paper front bulge A4 100rpm(Do not -90 to 8 Adjust) 160 Paper front bulge A4 130rpm(Do not -90 to 8...

  • Page 620: Sp6-21: Paper Regist Position

    SP6-21: PAPER REGIST POSITION 5.7.3 SP6-21: PAPER REGIST POSITION 1. Input SP8-10 (Test patterns) and enter “6”, then press the Start key. 2. Exit the SP mode, print 10 copies at 100 rpm (speed 2). Use the 10th print for the adjustment.

  • Page 621: Sp6-20: Registration Buckle

    SP6-1: MAIN SCAN POSITION – PLATEN AND SP6-2: MAIN SCAN POSITION - ADF 5.7.6 SP6-1: MAIN SCAN POSITION – PLATEN AND SP6-2: MAIN SCAN POSITION - ADF 1. Make a copy in platen mode at speed 2. 2. Measure the difference between the center of the main-scan on the original and on the print.

  • Page 622: Sp6-40: Ink Detection Adjustment

    SP6-32 TO 37: MTF FILTER 5.7.9 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). Value Strength of Filter X 1/2...

  • Page 623: Sp6-100 To 104: Paper Registration - Each Speed

    SP6-100 TO 104: PAPER REGISTRATION - EACH SPEED 5.7.11 SP6-100 TO 104: PAPER REGISTRATION - EACH SPEED The following procedure allows the image position to be adjusted for each speed (30, 60, 80, 100 and 130 rpm) NOTE: If you want to adjust the image position for all the speed at the same time, use SP6-21 (Paper registration position).

  • Page 624: Sp7-1: Factory Settings Clear

    SP TABLE (SP 7-XXX) MEMORY CLEAR 5.8.1 SP TABLE (SP 7-XXX) Menu Items Factory settings clear Total counter clear Jam/Error data clear 5.8.2 SP7-1: FACTORY SETTINGS CLEAR This resets all SP and User tool settings except for the following SP and User tool numbers.

  • Page 625: System Test

    SP TABLE (SP 8-XXX) SYSTEM TEST 5.9.1 SP TABLE (SP 8-XXX) Menu Items Default Settings Download main firmware Start with # key Upload main firmware Start with # key Data printout – Basic/SC/Jam Data printout – Adjustment Data printout – Input/Output Data printout –...

  • Page 626: Sp8-2: Upload Main Firmware

    SP8-1. DOWNLOAD MAIN FIRMWARE 5.9.2 SP8-1. DOWNLOAD MAIN FIRMWARE C267S906.WMF Updates the main firmware using a flash memory card [A]. NOTE: To update the I/O control firmware in the EPROM on the MPU, replace the EPROM (see section 3.12). 1. Before downloading new firmware, check the current version with SP1-70 2.

  • Page 627: Sp8-9 Data Printout – Power Failure

    SP8-9 DATA PRINTOUT – POWER FAILURE 5.9.4 SP8-9 DATA PRINTOUT – POWER FAILURE C267S901.WMF [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 See section 6.11 for more information about the four types of data ([A] to [D]).

  • Page 628: Sp8-10: Test Patterns

    SP8-10: TEST PATTERNS 5.9.5 SP8-10: TEST PATTERNS Makes prints without using the scanner. Access SP8-10 and select the number “6”, then press the “Enter(#)” key. Other numbers are as shown below 1: Grid, 2: Vertical, 3: Horizontal gray, 4: Vertical gray, 5: 16 grays, 6: Cross, 7: Diagonal grid, 8: 256 grays, 9: 64 grays 5.9.6 SP8-21: PAPER FEED TEST (30 RPM) Feeds paper at the lowest speed (30 rpm), and applies printing pressure.

  • Page 629: User Tools

    MAIN MENU NUMBER LIST 5.10 USER TOOLS 5.10.1 MAIN MENU NUMBER LIST Number Main Menu Counter System Settings Set Operation Mode Initial Settings Mode Settings Administration Tools Online Settings 5.10.2 USER TOOL LISTS 1. Counter Mode Description Counter Display Shows the total number of masters and prints. 2.

  • Page 630: Set Operation Mode

    USER TOOL LISTS 3. Set Operation Mode Mode Description Minimum Print Quantity You can set a minimum print quantity between 0 and 9999. Any number below the minimum will not be printed. Maximum Print You can set a maximum print quantity between 0 and Quantity 9999.

  • Page 631: Mode Settings

    USER TOOL LISTS 5. Mode Settings Mode Description Auto Cycle You can select to have Auto Cycle mode as either “On” or “Off” when the power is turned on. Background Correction When you make prints in Photo, or Text/Photo mode, the background of the prints might appear dirty.

  • Page 632: Separation Roller

    MECHANICAL COMPONENT LAYOUT 6. DETAILED SECTION DESCRIPTIONS 6.1 MECHANICAL COMPONENT LAYOUT C267D004.WMF 1. Tension Roller 16. Paper Delivery Table 2. Master Feed Roller 17. Air Knife Fan Motor 3. Platen Roller 18. Master Eject Box 4. Thermal Head 19. Master Eject Rollers 5.
  • Page 633 6.2 ELECTRICAL COMPONENT LAYOUT 6.2.1 MAIN BODY C267D005.WMF C267D006.WMF...
  • Page 634 ELECTRICAL COMPONENT LAYOUT Boards Index No. Name Function Displays messages for the operator Operation Panel Boards These boards control the operation panel. Lamp Stabilizer This supplies power to the xenon lamp. Makes a video signal from the scanned original. Main Processing Unit Controls all machine functions both directly and (MPU) through other boards.

  • Page 635: Feed Clutch

    Index No. Name Function Main Switch Turns the power on or off. Sensors Index No. Name Function Master Set Cover Checks if the master set cover is set. Sensor Master End Sensor Informs the CPU when the master making unit runs out of master roll.
  • Page 636 DRIVE LAYOUT 6.3 DRIVE LAYOUT C267D007.WMF 1. Pressure Plate Motor 5. Paper Feed Clutch 2. Clamper Motor 6. Master Feed Motor 3. Main Motor 7. Scanner Motor 4. Registration Motor 8. Original Feed Motor C267...
  • Page 637 6.4 SCANNER AND OPTICS 6.4.1 SCANNER OVERVIEW C267D025.WMF 1. Exposure Lamp 4. Lens Block 2. 1st Scanner 5. Scanner Motor 3. Exposure Glass 6. Scanner H.P. Sensor The original is illuminated by the exposure lamp (a xenon lamp). The image is reflected onto a CCD (charge coupled device) on the lens block via the 1st, 2nd, and 3rd mirrors, and through the lens on the lens block.
  • Page 638 SCANNER AND OPTICS 6.4.2 SCANNER DRIVE C267D026.WMF A stepper motor drives the 1st and 2nd scanners [A, B]. The 1st scanner is driven by the scanner drive motor [C], timing belt [D], scanner drive pulley [E], scanner drive shaft [F], and two timing belts [G]. The 2nd scanner is driven through the 1st scanner and two timing belts [H].

  • Page 639: Image Processing Flow

    6.5 IMAGE PROCESSING 6.5.1 IMAGE PROCESSING FLOW Image processing is done by the IPU (Image Processing Unit) on the MPU board, following the steps shown below. Shading Correction ↓ Reduce/Enlarge ↓ Filtering ↓ Gamma Correction ↓ Grayscale Processing Shading Correction: Corrects errors in the signal level for each pixel using the white plate.

  • Page 640: Specifications

    IMAGE PROCESSING 6.5.2 THERMAL HEAD Specifications • Length 256 +- 0.2 mm • Number of thermal head elements 3024 dots • Density of thermal head elements 300 dpi • Applied voltage Approximately 15 volts Thermal Head Control The thermal head has heating elements at a density of 300 dpi. The thermal heating elements melt the over-coating and polyester film layers of the master, according to the image signal for each pixel.
  • Page 641 6.6 MASTER EJECT UNIT 6.6.1 OVERVIEW C267D936.WMF The master eject unit removes the used master from the drum. ( : Digital Duplicators – Duplicating Process – Master Ejecting) Procedure The drum turns to the master eject position (same as drum home position). Then the clamper [A] opens.

  • Page 642: Master Eject Unit Open Mechanism

    MASTER EJECT UNIT 6.6.2 MASTER EJECT UNIT OPEN MECHANISM C267D030.WMF To open the master eject unit, just push the button [A]. This makes it easy for maintenance and for removing master and paper jams. If the button is pushed by accident while the machine is operating, the master eject unit safety switch [B] will stop the machine automatically for safety.

  • Page 643: Clamper Mechanism

    6.6.3 MASTER CLAMPER OPENING MECHANISM C267D008.WMF Clamper Mechanism Clamper motor [A] - opens the clamper at the master eject position ↓ Gears [B] ↓ Link [C] ↓ Drum guide [D] - moves and engages the pin on the rear flange of the drum ↓...
  • Page 644 MASTER EJECT UNIT 6.6.4 MASTER EJECT ROLLER MECHANISM C267D937.WMF Mechanism Master eject motor [A] ↓ Gears [B] ↓ Master eject rollers [C] – the upper roller has paddles ↓ Pick up the master and feed it into the master eject box NOTE: During this process, the master eject sensor [D] detects master eject jams.
  • Page 645 6.6.5 PRESSURE PLATE MECHANISM C267D938.WMF Mechanism Pressure plate motor [A] ↓ Gears [B] ↓ Pressure plate rotates ↓ Compresses the masters Procedure 1. After the master has been ejected and the drum is stopped at the master feed position, the pressure plate motor turns until the actuator on the pressure plate actuates the limit sensor [D].
  • Page 646 MASTER FEED 6.7 MASTER FEED 6.7.1 OVERVIEW C267D939.WMF The master making unit makes an image on the master and feeds the master to the drum. ( : Digital Duplicators – Duplicating Process – Master Feeding) Procedure The machine feeds the master from the master roll [A]. ↓...

  • Page 647: Master Feed Mechanism

    6.7.2 MASTER FEED MECHANISM C267D009.WMF Mechanism Master feed motor [A] (stepper motor) ↓ Gears [B] ↓ Platen roller [C], master feed roller [D] ↓ Feeds the master (The thermal head makes an image on the master.) Procedure 1. After the old master has been ejected, the drum stops at the master feed position and the master clamper opens, ready to clamp the new master.
  • Page 648 MASTER FEED NOTE: Springs press the thermal head against the platen roller. The pressure is applied when the master set cover, which includes the platen roller, is closed. 6.7.3 CLAMPER AND TENSION ROLLER MECHANISM C267D010.WMF C267D940.WMF 6-17 C267...
  • Page 649 Mechanism Clamper motor [A] ↓ Gears [B] ↓ Link [C] ↓ Drum guide [D] ↓ Lifts the lever [E], engages and locks the drum pin [F], opens the clamper plate [G]. ↓ Releases the tension roller [H]. ↓ Feeds the master into the clamper. Procedure •...

  • Page 650: Cutter Mechanism

    MASTER FEED 6.7.4 CUTTER MECHANISM C267D941.WMF [A]: Cutter motor [B]: Cutter HP sensor • When the cutter starts, the drum is stopped at the master eject position (drum HP). • The cutter moves backwards and forwards. While the cutter travels towards the rear (non-operation side), it cuts the master.
  • Page 651 6.7.5 MASTER SET COVER SENSOR C267D011.WMF [A]: Master set cover sensor [B]: Master set cover NOTE: If the cover is closed properly, the release button [C] rises.

  • Page 652: Master Making Unit Slide-Out Mechanism

    MASTER FEED 6.7.6 MASTER MAKING UNIT SLIDE-OUT MECHANISM C267D031.WMF The master making unit [A] can be pulled out along the guide rails [B]. There are four cable connectors [C] behind the master making unit. The bundle of harnesses [D] is placed in the space between the scanner and the drum, and connected to the MPU.

  • Page 653: Master Set Mechanism

    6.7.7 MASTER SET MECHANISM C267D942.WMF The convex part [A] at the arrows helps the user when installing a new roll, so that the user does not push the leading edge too far into the interior of the master making unit.
  • Page 654 DRUM 6.8 DRUM 6.8.1 OVERVIEW C267D943.WMF Procedure Ink is supplied inside the drum, through the drum shaft. ↓ The ink roller [A] and the doctor roller [B] spread the ink evenly on the screens. ↓ Ink passes through the metal screen [C]. ↓...

  • Page 655: Drum Drive Mechanism

    6.8.2 DRUM DRIVE MECHANISM C267D012.WMF Mechanism Main motor [A] (dc motor) ↓ Belt [B] ↓ Gears [C] ↓ The drum rotates. NOTE: 1) The main motor encoder sends pulses to the main motor control board (1020 pulses = 360 degrees). 2) The CPU monitors the pulses and controls the drum speed and stop positions.

  • Page 656: Ink Supply Mechanism

    DRUM 6.8.3 INK SUPPLY MECHANISM C267D013.WMF Ink is supplied from the ink cartridge to the ink roller [B] by a trochoid type pump [C]. The ink pump is driven by the ink supply motor (a dc motor) [D]. Ink drops through the holes in the drum shaft [A] onto the ink roller [B]. There is an ink filter [E] at the entrance of the ink nozzle.

  • Page 657: Ink Roller Mechanism

    6.8.4 INK ROLLER MECHANISM C267D944.WMF Main motor ↓ Gears [A] ↓ Ink roller [B] rotates ↓ Gears [C] ↓ Doctor roller [D] rotates ↓ The doctor roller squeezes the ink on the ink roller to produce an even thickness of ink on the ink roller.

  • Page 658: Ink Supply Control

    DRUM 6.8.5 INK SUPPLY CONTROL C267D014.WMF Mechanism When the ink level is low, the pins [A] do not touch the ink. ↓ The ink pump motor keeps the ink level normal by supplying ink when the level is low. NOTE: 1) The ink detection pins [A] detect the capacitance of the ink between the ink roller [B] and doctor roller [C].

  • Page 659: Automatic Ink Supply For A New Drum

    Automatic Ink Supply for a New Drum If the machine detects a new drum, ink is supplied automatically at the trial print for the first job with this drum. The machine detects a new drum if: • There is no master wrapped on the drum, and •...

  • Page 660: Detection Of Masters On The Drum

    DRUM 6.8.6 DETECTION OF MASTERS ON THE DRUM C267D945.WMF [A]: Drum master sensor [B]: Black patch on the screen [C]: Black patch on the clamper • The drum master sensor [A] detects whether there is a master on the drum. •...

  • Page 661: Metal Screen

    6.8.7 METAL SCREEN C267D946.WMF The flow of ink is shown above. The excess ink goes back to the inside of the drum from the trailing edge of the metal screen. C267D947.WMF The adhesive parts [A] are only at the sides of the mylar seal for the metal screen. They are not attached to the trailing edge.

  • Page 662: Drum Type Detection

    DRUM 6.8.8 DRUM TYPE DETECTION C267R085.WMF Identify size 1 Identify size 2 Identify Color C267R086.WMF The type of drum is distinguished by inserting jumper wires in the drum connector [A] at three locations, as shown in the lower diagram. Black drum Identify Color Identify size 1 Identify size 2...

  • Page 663: Paper Feed

    6.9 PAPER FEED 6.9.1 OVERALL C267D015.WMF The top sheet of the paper on the paper table is first fed by the pick-up roller [A]. Then, it is separated by the paper feed roller [B] and the friction pad [C], and transported to the registration rollers [D].

  • Page 664: Paper Feed Mechanism

    PAPER FEED 6.9.2 PAPER FEED MECHANISM C267D949.WMF The pick-up roller [A] and paper feed roller [B] are driven by the main motor [C] through gears and a timing belt. During the printing cycle, when the feed start timing sensor [D] is actuated by the actuator on the drum, the paper feed clutch [E] is energized to transmit the main motor rotation to the paper feed roller shaft.

  • Page 665: Paper Feed/Separation Pressure Adjustment Mechanism

    6.9.3 PAPER FEED/SEPARATION PRESSURE ADJUSTMENT MECHANISM Feeder Thick paper Standard Thin paper C267D003.WMF C267D001.WMF [A]: Normal position [B]: Thick paper position [C]: Thin paper position • The user can change the pick-up roller pressure by changing the position of the pressure adjustment lever [D].

  • Page 666: Side Edge Paper Press Plate Mechanism

    PAPER FEED 6.9.4 SIDE EDGE PAPER PRESS PLATE MECHANISM C267D016.WMF For some paper types, the side edges of the paper might curl up because the centre of the paper is pressed down by the paper feed roller. This will cause paper jams to occur.

  • Page 667: Registration Roller Mechanism

    6.9.5 REGISTRATION ROLLER MECHANISM C267D017.WMF Registration motor [A] ↓ Belt [B] ↓ Turns the lower registration roller [C] NOTE: 1) The MPU controls the registration roller start timing to synchronize the print paper with the image on the master on the drum. 2) The motor speed depends on the selected printing speed.

  • Page 668: Registration Roller Up/Down Mechanism

    PAPER FEED 6.9.7 REGISTRATION ROLLER UP/DOWN MECHANISM C267D950.WMF • After the printing paper is caught between the drum and the press roller, the registration motor stops and the upper registration roller [A] is released from the lower registration roller. This is to prevent interference from the registration rollers while the drum and press roller transport the paper.

  • Page 669: Registration Sensor Cleaning

    6.9.8 REGISTRATION SENSOR CLEANING C267D018.WMF NOTE: This mechanism is attached only for the Chinese model. Dust on the registration sensor [A] can be removed by operating a lever [B]. The technician should do this every visit.

  • Page 670: Printing Pressure Mechanism

    PAPER FEED 6.9.9 PRINTING PRESSURE MECHANISM C267D951.WMF • When not in the printing cycle, the two solenoids [A] stay off and the stoppers [B] lock the brackets [C] to keep the press roller [D] away from the drum. • When the 1st sheet of paper is fed, the solenoid is energized but the brackets are still locked by the stoppers due to strong tension from the springs [E].

  • Page 671: Paper Table Mechanism

    6.9.10 PAPER TABLE MECHANISM C267D019.WMF C267D002.WMF Table Up and Down Mechanism An independent dc motor, the paper table motor [A], drives the paper table. When the motor turns, the pinions [B] turn on the racks [C], lifting up or lowering the paper table.

  • Page 672: Paper End Detection Mechanism

    PAPER FEED again. In this way, the top of the paper stack remains at the same position during printing. When the tray lowers, the lower limit position is detected by the lower limit sensor [F], which is beside the paper table motor. When paper runs out, the paper feed table lowers, until the paper table lower limit sensor (not shown) detects the lower limit position.

  • Page 673: Paper Table Side Fence Mechanism

    6.9.11 PAPER TABLE SIDE FENCE MECHANISM C267D952.WMF The left and right side fences [A] move together due to a rack and pinion mechanism. There is a lock lever [B] to hold the side fences in position. NOTE: The lock lever may be useful if there is no dedicated operator and some of the operators cannot set the side fences properly, causing paper feed problems.

  • Page 674: Side Fence Friction Pads

    PAPER FEED Side Fence Friction Pads C267D953.WMF The two side fence friction pads are included as accessories. These are not used normally, but if paper multi-feed frequently occurs, the friction pads [A] can be installed to apply stopping pressure to the paper. These are especially useful when thin paper is used.

  • Page 675: Paper Delivery

    6.10 PAPER DELIVERY 6.10.1 OVERALL C267D902.WMF Procedure The exit pawl [A] and the air knife [B] separate the paper from the drum. ↓ The paper is fed to the paper delivery table [C] by the paper delivery unit [D]. ↓ The paper exit sensor [E] is used for jam detection.

  • Page 676: Paper Delivery Unit Drive Mechanism

    PAPER DELIVERY 6.10.2 PAPER DELIVERY UNIT DRIVE MECHANISM C267D021.WMF Mechanism Main motor [A] ↓ Belt and gear [B] ↓ Shaft [C] ↓ Rotates the transport belts [D]. NOTE: 1) The vacuum fan motor inside the unit holds the paper against the belts [D] to deliver the paper to the delivery table.

  • Page 677: Air Knife

    6.10.3 PAPER SEPARATION FROM DRUM C267D022.WMF Air knife • The air from the air knife fan motor [A] separates the paper from the drum. • The air knife fan motor starts blowing air when the print start key is pressed or when master cutting is finished.

  • Page 678: Exit Pawl Drive Mechanism

    PAPER DELIVERY 6.10.4 EXIT PAWL DRIVE MECHANISM C267D023.WMF • During printing, the distance between the exit pawl [A] and the drum is very small, to prevent paper wrap jams. However, when the master clamper [B] approaches the exit pawl (as the drum turns), the pawl has to be moved away from the drum to prevent it from being damaged by the master clamper.
  • Page 679 C267D024.WMF • When printing finishes and the printing pressure is released, the cam follower arm [F] is engaged by the printing pressure release arm [D] and held in the lower position. Therefore, after printing finishes, the cam follower is out of contact with the cam, and the exit pawl moves away from the drum to its normal position.
  • Page 680 PAPER DELIVERY 6.10.5 SIDE PLATE GUIDE C267D954.WMF When printing on A4SEF, B5, and thin paper, side plate guides [A] should be attached to the side plate of the paper delivery table. Users can attach these guides. Then, the side plate guides can correctly stack the printouts on the paper delivery table.
  • Page 681 6.11 ABNORMAL VOLTAGE PROTECTION This is for the AC220V ~240V machine only. C267D955.WMF There is an automatic detection system [A] for unexpected voltage surges, featuring automatic shut-off and data logging features. Momentary voltage drop SP 1-83 records the number of momentary interruptions. NOTE: The machine can record only interruptions of very short duration.
  • Page 682 ABNORMAL VOLTAGE PROTECTION General Notes on this Feature NOTE: 1) The durability of the PSU is improved compared to previous models. 2) The 100V machine does not have this mechanism, because voltages more than 220 V will not occur. 3) The machine keeps a record, and you can check the data with SP 8-9 Data printout –...

  • Page 683: Picking Up The Used Master From The Drum

    6.12 ERROR DETECTION 6.12.1 MASTER EJECT JAM (E JAM LOCATION INDICATOR) Picking up the used master from the drum Check 1 Main Motor Open Open Close Close Clamper Motor 700ms 700ms Master Eject Motor Master Eject Sensor 2nd Feed Timing Sn Check 2 C267D903.WMF Check 1:...
  • Page 684 ERROR DETECTION 6.12.2 ADF JAM (P JAM LOCATION INDICATOR) Feeding in the original (ADF) Finish Scanning Original Registration Sn Original Feed Motor Original feed Clutch Feeding in Feeding out C267D904.WMF 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 Feeding out When the scanner has fed out the correct length and feeds 150mm more, but the...

  • Page 685: Cutting The Master

    6.12.3 MASTER FEED JAM (D JAM LOCATION INDICATOR) Cutting the master Master making Retry Cut Main Motor Cutter H.P. Sn Cutter H.P. Sn Drum Master S.n. Cut error Drum Master check C267D905.WMF The drum master sensor does not turn on between feed start timing sensor and drum black patch after the master cutting operation.
  • Page 686 ERROR DETECTION 6.12.4 PAPER FEED JAM (A JAM LOCATION INDICATOR + Paper feed 86° Feed start timing sensor Paper registration sensor Registration check C267D907.WMF Paper feed will try again when the paper registration sensor does not turn on after 86 degrees from the paper start timing sensor. Then the drum will rotate one more time and if the paper registration sensor still does not turn on, the A jam indicator lights.

  • Page 687: Timing Chart

    6.13 TIMING CHART 6.13.1 SCANNING Master Start Making Scan Master Eject Check HP Scanning Check HP Scanner Motor Scanner HP Sn Xenon lamp C267D909.WMF 6.13.2 MASTER EJECT Finish Master Scanning Master Eject Feed Open & Close Clamper Eject Master Main Motor Master Eject Position Sn Feed Start Timing Sn Clamper Motor...
  • Page 688 TIMING CHART 6.13.3 MASTER FEED C267D912.WMF 6-57 C267...
  • Page 689 6.13.4 PRINT C267D911.WMF...
  • Page 690 ESSENTIAL DIFFERENCES BETWEEN C248 AND C267 MODELS 7. SPECIFICATIONS 7.1 ESSENTIAL DIFFERENCES BETWEEN C248 AND C267 MODELS Item Remarks Scanner unit A newly designed scanner unit is used. 600 dpi x 300 dpi CCD A3 / 11” x 17” size book scanner Operation panel A newly designed operation panel is used.

  • Page 691: Printing

    ESSENTIAL DIFFERENCES BETWEEN C252 AND C267 MODELS 7.2 ESSENTIAL DIFFERENCES BETWEEN C252 AND C267 MODELS Item Remarks Scanner unit A newly designed scanner unit is used. 600 dpi x 300 dpi CCD A3 / 11” x 17” size book scanner Operation panel A newly designed operation panel is used.

  • Page 692: Paper Delivery

    GENERAL SPECIFICATIONS 7.3 GENERAL SPECIFICATIONS Configuration Desktop 300 dpi × 300 dpi Pixel Density In Fine mode, 400 dpi in sub-scanning resolution 600 dpi × 300 dpi CCD Scanning This model always reduces the amount of scanned data in the main-scan direction by half before printing. Master Process Digital with 300 dpi thermal head Original Type...

  • Page 693: Specifications

    GENERAL SPECIFICATIONS Stored 750 × 676 × 633 mm, 29.5” × 26.6” × 24.9” Stored with ADF 750 × 676 × 686 mm, 29.5” × 26.6” × 27.0” Dimensions (W × D × H) Set up 1224 × 676 × 633 mm, 48.2” × 26.6” × 24.9” Set up with ADF 1224 ×...

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