Ricoh B174 Service Documentation
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Ricoh B174 Service Documentation

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B174
SERVICE DOCUMENTATION
001955MIU
RICOH GROUP COMPANIES

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  • Page 1 B174 SERVICE DOCUMENTATION 001955MIU RICOH GROUP COMPANIES...
  • Page 3 ® ® RICOH GROUP COMPANIES...
  • Page 5 B174 SERVICE DOCUMENTATION 001955MIU...
  • 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 B174 DSm515pfd AC106d AC204 AC204 DOCUMENTATION HISTORY REV. NO. DATE COMMENTS 6/2004 Original Printing...

  • Page 13: Table Of Contents

    B174 TABLE OF CONTENTS INSTALLATION 1. INSTALLATION................1-1 PREVENTIVE MAINTENANCE 2. PREVENTIVE MAINTENANCE............ 2-1 REPLACEMENT AND ADJUSTMENT 3. REPLACEMENT AND ADJUSTMENT ........3-1 3.1 GENERAL PRECAUTIONS ON DISASSEMBLY ........3-1 Releasing Plastic Latches..............3-1 3.2 REAR COVER...................3-2 3.3 SCANNER ASS'Y..................3-3 3.4 ADF ASS'Y ....................3-9 3.5 OPE ASS'Y (ALSO KNOWN AS ‘OP-PORT’) .........3-11...
  • Page 14 5.2.1 HOW TO ENTER SERVICE MODE ..........5-3 5.2.2 SETTING UP THE SYSTEM IN TECH MODE .........5-3 5.2.3 SYSTEM DATA ................5-5 DIALING MODE..................5-5 MODEM SPEED ...................5-5 ERROR RATE ..................5-5 SET TX LEVEL ..................5-5 SILENCE TIME ..................5-5 5.2.4 MEMORY CLEAR................5-6 CLEAR ALL MEMORY .................5-6 B174...
  • Page 15 DETAILED DESCRIPTIONS 6. DETAILED DESCRIPTION ............6-1 6.1 MAIN PBA (ALSO KNOWN AS MAIN BOARD) ........6-1 6.1.1 SUMMARY ..................6-1 6.2 CIRCUIT OPERATION................6-2 6.2.1 FAX TRANSCEIVER ................6-2 General ....................6-2 Modem (u44) ..................6-2 6.3 SCANNER ....................6-2 6.3.1 SUMMARY ..................6-2 CCD ......................6-2 B174...
  • Page 16 3. SCAN SPECIFICATION ................7-2 4. COPY SPECIFICATION ................7-3 5. TELEPHONE SPECIFICATION ..............7-3 6. FAX SPECIFICATION .................7-3 7. PAPER HANDLING..................7-4 8. CONSUMABLES ..................7-4 APPENDIX APPENDIX BLOCK DIAGRAMS..................8-1 CONNECTION DIAGRAMS................8-2 PARTS CATALOG SEE PARTS CATALOG SECTION FOR DETAILED TABLE OF CONTENTS B174...
  • Page 17 PRECAUTIONS Please carefully read the cautions below to prevent accidents while servicing the machine. WARNING FOR SAFETY 1. Request the service by qualified service person. The service for this machine must be performed by a qualified service person. It is dangerous if an unqualified service person or user tries to repair the machine.

  • Page 18: Caution For Safety

    CAUTION FOR SAFETY PRECAUTION RELATED NOXIOUS MATERIAL It is possible to be harmed from noxious material if you ignore the below information. 1. Do not touch the damaged LCD. Noxious liquid to a human body exists in the LCD. If it is got into the mouth, immediately see a doctor. If it gets into the eyes or on the skin, immediately wash off with flowing water for 15 minutes and then see a doctor.
  • Page 19 9. Use caution during lightning storms. It may cause a fire or electric shock. Unplug the power plug off under these conditions. Do not touch cable and device during a lightning storm. 10. Avoid damp or dusty areas. Do not install the machine in dusty areas or around humidifiers.

  • Page 20: Esd Precautions

    PRECAUTIONS FOR WHEN ASSEMBLY/DISASSEMBLY Replace parts very carefully. Remember the location of each cable before removing parts, in order to reconnect it afterwards. Please perform the steps below before replacing or disassembling any parts. 1. Check the contents stored in the memory. Either print a copy of stored data or write down all of the needed information.
  • Page 21 4. Only use an “anti-static” solder removal device. Some solder removal devices not classified as “anti-static” and can generate an electrical charge sufficient to damage ESD’s. 5. Do not use Freon-propelled chemicals. When sprayed, these can generate electrical charges sufficient to damage ESD’s. 6.

  • Page 23: Installation

    INSTALLATION PREVENTIVE MAINTENANCE REPLACEMENT AND ADJUSTMENT TROUBLESHOOTING SERVICE TABLES DETAILED DESCRIPTIONS SPECIFICATIONS APPENDIX...

  • Page 25: Installation

    INSTALLATION...
  • Page 27 INSTALLATION 1. INSTALLATION Refer to the operating instructions. B174...

  • Page 29: Preventive Maintenance

    PREVENTIVE MAINTENANCE...
  • Page 31 ADF Rubber Pad Ass’y 20,000 Pages Service Scanner ADF Pick-up Ass’y 50,000 Pages Service Rubber - Paper Pick-up - Right 75,000 Pages Service Rubber - Paper Pick-up - Left Printer Transfer Roller 75,000 Pages Service Fuser 75,000 Pages Service B174...

  • Page 33: Replacement And Adjustment

    REPLACEMENT AND ADJUSTMENT...

  • Page 35: General Precautions On Disassembly

    Releasing Plastic Latches Many parts set in their positions with plastic latches. The latches break easily. Release them carefully. Push the hook end of the latch away from the part to which it is latched to remove these parts. B174R979.WMF B174...

  • Page 36: Rear Cover

    REAR COVER 3.2 REAR COVER 1. Remove the six screws that hold the Rear Cover. B174R900.WMF 2. Remove the Rear Cover [A] as shown. B174...

  • Page 37: Scanner Ass'y

    B174R902.WMF 3. Remove the three screws, as shown. B174R903.WMF 4. Open the Right Cover assembly [C] first to open the Front Cover [D]. • Close the front cover first when you assemble the machine. B174R904.WMF B174...
  • Page 38 SCANNER ASS'Y 5. Remove two screws. B174R905.WMF 6. Pull up the Scanner Ass'y [A] in the direction of the arrow. B174R906.WMF 7. Disconnect the connector [B] from the Platen Ass'y. B174R907.WMF B174...
  • Page 39 8. Open the Platen Ass’y [A] as shown by the arrow. Pull up the Platen Ass'y and remove it. B174R909.WMF 9. Remove the three screws securing the Platen Ass’y. B174R908.WMF 10. Pull up the OPE Ass'y [B] and remove it ( x 1). B174R978.WMF B174...
  • Page 40 NOTE: When you disassemble the Scan Ass’y, make sure that your work area is clean. Dirt or dust on the scan head can cause unsatisfactory scanned image quality. B174R911.WMF 13. Remove the Dummy Upper Ass’y [D] ( x 2). B174R912.WMF B174...
  • Page 41 SCANNER ASS'Y 14. Remove the Channel Base Frame [A] ( x 4). 15. Remove the Dummy Scan-Lower [B] ( x 5). B174R913.WMF 16. Remove the CCD cable [C]. B174R914.WMF B174R915.WMF B174...
  • Page 42 Platen board [E]. Remove the Platen board ( x 2). NOTE: Be very careful when you attach the B174R918.WMF CCD Unit back to the Platen Ass'y. The CCD Unit is on the right side of the Belt Tension Spring [F]. B174R919.WMF B174...

  • Page 43: Adf Ass'y

    Remove Side Cover R [C]. Release Side Cover L [D]. To do this, use a sharp tool or small screwdriver as shown [E]. Then remove Side Cover L. B174R921.WMF 4. Pull up the ADF Ass'y [F] and remove B174R922.WMF B174...
  • Page 44 5. Remove the ADF Upper Cover [A]. B174R923.WMF 6. Remove the ADF Pick-up Ass’y [B] (! 2). Remove the ADF Upper [C] ( x 4). [D]: ADF Rubber Pad Ass’y (! 2) B174R924.WMF 7. Remove the ADF Motor ass'y [E] ( x 3). B174R925.WMF B174 3-10...

  • Page 45: Ope Ass'y (Also Known As 'Op-Port')

    2. Remove the OPE board [A] and the LCD Module [B] from the OPE Cover [C] ( x 10). B174R926.WMF 3. Remove the contact rubbers [D] from the unit. B174R927.WMF 4. Remove the key pad [E] from the unit. B174R928.WMF 3-11 B174...

  • Page 46: Right Cover Ass'y

    Right Cover [B] to the Main Frame. B174R929.WMF 2. Fully open the Right Cover door [C]. " Lift the left hand hinge to release it. Then push the door assembly to the left to release the right hand hinge B174R930.WMF B174 3-12...

  • Page 47: Multi Purpose (Mp) Tray (Also Known As Bypass Tray)

    This will let you remove the Tray-Case [A] from the Tray Links. To remove the Tray-Links [B], adjust the position of the Tray Links to a 45-degree angle to align the slot in the link correctly, as shown at B174R932.WMF 3-13 B174...

  • Page 48: Duplex Ass'y

    RIGHT COVER ASS'Y Duplex Ass'y 1. Remove the Duplex Ass'y [A] from the Side Door Ass'y [B] (release the plastic clips, 2 on each side). B174R933.WMF Transfer Roller Ass'y 1. Remove the Transfer Roller Ass’y [B] (!2). B174R934.WMF B174 3-14...

  • Page 49: Fuser Ass'y (Also Known As 'Fusing Unit')

    1. Before you remove the Fuser Ass'y, you must make sure that power is off. Then remove: - Rear Cover Ass'y (! 3.2) - Right Cover Ass'y (! 3.6) 2. Remove the Connector Cover [A] and the Cover Bracket [B] ( x 1 each). B174R935.WMF 3. Disconnect one connector [C]. B174R936.WMF 3-15 B174...
  • Page 50 FUSER ASS'Y (ALSO KNOWN AS ‘FUSING UNIT’) 4. Remove the Fuser Ass'y [A] ( x 3). (! 2) B174R937.WMF B174 3-16...

  • Page 51: Exit Ass'y

    Disconnect four connectors and unlatch the Dummy Base Frame [A], as shown. B174R941.WMF 3. Move the Exit Roller Release Lever [B] to the vertical position as shown in the diagram. Then, lift the Exit Ass'y [C] to remove it. B174R942.WMF 3-17 B174...

  • Page 52: Copy Tray

    COPY TRAY 3.9 COPY TRAY 1. Before you remove the Copy Tray, you must remove: - Rear Cover (! 3.2) - Scanner Ass'y (! 3.3) 2. Remove the Copy Tray [A] ( x 2). B174R943.WMF B174 3-18...

  • Page 53: Drive Ass'y

    2. Unplug two connectors. (for Main Motor [A]: 9-pin, for Duplex Solenoid [B]: 2-pin) B174R944.WMF 3. Remove the Fan [C] and Duct - Fan [D] ( x 1). B174R945.WMF 4. Remove the Drive Ass'y [E] ( x 5). B174R946.WMF 3-19 B174...

  • Page 54: Smps & Hvps (Also Known As 'Psu' And 'Power Pack)

    - Rear Cover (! 3.2) - Scanner Ass'y (! 3.3) - Copy Tray (! 3.9) 2. Remove the Shield SMPS Upper [A] ( x 3). B174R947.WMF 3. Disconnect all the connectors. B174R948.WMF 4. Remove the SMPS & HVPS [B]. B174R949.WMF B174 3-20...

  • Page 55: Lsu (Laser Scanning Unit)

    1. Before you remove the LSU, you must remove: - Rear Cover (! 3.2) - Scanner Ass'y (! 3.3) - Copy Tray (! 3.9) 2. Disconnect two connectors. B174R950.WMF 3. Remove the LSU [A] ( x 3). B174R951.WMF 3-21 B174...

  • Page 56: Left Cover

    - Scanner Ass'y (! 3.3) - Exit Ass'y (! 3.8) - Copy Tray (! 3.9) - SMPS (! 3.11) 2. Remove the Interface Panel [A] ( x 1). B174R952.WMF 3. Remove the Left Cover [B] ( x 1). B174R953.WMF B174 3-22...

  • Page 57: Main Frame Ass'y

    2. Remove the Dummy Base Frame [A] ( x 5), the Front Cover [B], and the Paper Exit Cam [C]. B174R954.WMF 3. Remove the Deve Lock Lever [D]. Then remove the Cover Motor Bracket [E] ( x 1). B174R955.WMF 3-23 B174...
  • Page 58 MAIN FRAME ASS'Y 4. Disconnect all the connectors. B174R956.WMF 5. Remove the Main Frame Ass'y [A] ( x 7). B174R957.WMF B174 3-24...

  • Page 59: Mp Ass'y (Multi Purpose Ass'y)

    1. Before you remove the MP Ass’y, you must remove: - Rear Cover (! 3.2) - Shield Main Upper (! 3.3) - Right Cover Ass'y (! 3.6) 2. Disconnect two connectors. B174R958.WMF 3. Remove the Feed Cover [A] ( x 1). B174R959.WMF 3-25 B174...
  • Page 60 MP ASS'Y (MULTI PURPOSE ASS’Y) 4. Remove three screws. B174R960.WMF 5. Release the SMPS by hand from below, as shown. Pull the MP Ass'y [A] up and remove it. B174R961.WMF B174 3-26...

  • Page 61: Feed Ass'y

    - Right Cover Ass'y (! 3.6) - Exit Ass'y (! 3.8) - Copy Tray (! 3.9) - LSU (! 3.12) - Main Frame Ass’y (! 3.14) 2. Remove three screws. B174R962.WMF 3. Pull the Feed Ass'y [A] up and remove it. B174R963.WMF 3-27 B174...

  • Page 62: Pick Up Ass'y

    - Drive Ass'y (! 3.10) 2. Disconnect three connectors. B174R964.WMF 3. Remove the Cassette Rail [A] ( x 2). B174R965.WMF 4. Remove the Pick Up Ass'y [B] ( x 4). [C]: Rubber – Paper Pick-up (2) [D]: Quenching (PTL) Lamp B174R966.WMF B174 3-28...

  • Page 63: Main Board

    2. Remove the Shield Plate [A] ( x 2). B174R967.WMF 3. Remove the Main Board [B] from the Shield Plate ( x 5). B174R968.WMF NOTE: Do a memory clear after you replace the main board. If not, the system possibly will not operate correctly. (! 5.2.4) 3-29 B174...

  • Page 64: Liu Board

    - Rear Cover (! 3.2) - Right Cover Ass'y (! 3.6) - Copy Tray (! 3.9) - SMPS (! 3.11) - Main Board (! 3.18) 2. Remove one screw and unlatch the LIU Board [A] from the Main Board [B]. B174R969.WMF B174 3-30...

  • Page 65: Troubleshooting

    TROUBLESHOOTING...

  • Page 67: Error Messages

    B. Transmit again after more memory becomes available C. Divide the transmission into more than one operation. NO ANSWER The remote machine did not Try again. Make sure the answer after all the redial attempts. remote machine is OK. B174...
  • Page 68 No power to the fusing lamp Check the thermostat, thermistor, fuser lamp and fuser connector and related wiring. Also check the ‘Fuser On’ signal from main PWA to Power Supply. Check the cable from Main PWA to Power Supply B174...

  • Page 69: Abnormal Image Printing And Defective Rollers

    Horizontal dark band Develop Roller 44.8 mm Horizontal dark band Transfer Roller 57.8 mm Contamination on reverse side of paper / transfer fault Hot Roller 82.5 mm Black spot, White spot Pressure Roller 78.5 mm Contamination on reverse side of paper B174...

  • Page 70: Troubleshooting

    • Make sure that the scanner motor position is correct. • Check the Motor Driver chip on • If a driver is defective, replace the Main PBA. the Main PBA. B174...

  • Page 71: Pc-Scan

    • Make sure that the scanner motor position is correct. • Check the motor driver in the Main • If a driver is defective, PBA. replace the Main PBA. B174...

  • Page 72: Fax

    Defective automatic • Is the ring detected? • Replace the LIU PBA if it fax reception Check the ring signal at CN1-9 cannot be checked. (LIU PBA). • Refer to “Defective • Refer to ‘“Defective Transmission”. Transmission”. B174...

  • Page 73: Print Quality

    4~6. Change the HVPS (SMPS) Digital Printer Transfer voltage and roller. Board. Contamination of high Digital Printer 6. Clean or replace the transfer voltage contact. roller. B174T923.WMF 7. Stray toner can increase contact resistance and cause a bad contact. Clean the contaminated area. B174...
  • Page 74 If not, replace the time? fusing unit. Re-check after you let the machine come up to room temperature. Partial blank image Toner is low? Replace the toner cartridge. (not periodic) The toner cartridge is out Check and adjust. of position? B174...
  • Page 75 Digital Printer 2. .Charge roller dirty 2. Clean the charge roller. Digital Printer 3. .Dirty hot roller 3. Replace the fusing unit Digital Printer 4. Malfunction of LSU 4. Check the Main PBA Digital Printer Digital Printer B174T928A.WMF B174...

  • Page 76: No Image

    HVPS. LSU change High/Low Replace the defective when printing? board The mirror in the LSU might be misplaced, so the light path to the OPC deviates - Replace the LSU or remove defective parts in the machine B174T901.WMF B174 4-10...
  • Page 77 (see The power of the LSU might be low or the light the counter)? intensity is low due to dirt on the window → Replace the LSU or clean the window Replace the toner cartridge B174T902.WMF 4-11 B174...

  • Page 78: All Black

    → Replace the defective board or wiring Replace the LSU Is charge voltage supplied Replace the HVPS from HVPS? Is the Hsync/ Replace the LSU signal received in LSU? The charge terminal contact is bad → Replace the drum cartridge B174T903.WMF B174 4-12...

  • Page 79: Vertical White Line (Band)

    → Replace the toner cartridge Obstacles between OPC or developer and LSU Check if the toner cartridge → Remove the obstacles counter is over its guaranteed life and check the amount of remaining toner → Replace the toner cartridge B174T904.WMF 4-13 B174...

  • Page 80: Dark Image

    Toner over-supply due to Works correctly incorrect adjustment of metering after replaced blade → Replace the toner cartridge LSU? The power of the LSU is too high or there is an internal problem → Replace the LSU B174T905.WMF B174 4-14...

  • Page 81: Background

    → Repair or replace components. Works OK? Check if the LED of the quenching lamp in the pick up ass'y is on when you push the top cover switch → If not, replace the quenching lamp. B174T906.WMF 4-15 B174...

  • Page 82: Ghost

    There may be a problem Operating/ with toner layer control in storage temperature is too the toner cartridge low or not recommended → Replace the toner paper used? cartridge Use the machine with recommended paper and conditions B174T907.WMF B174 4-16...

  • Page 83: Black Spot

    Foreign objetcs stuck toner dropped onto the the pressure roller or hot to the charge roller paper roller in the fusing unit → Clean the charge → Replace the toner → Clean or replace the roller. cartridge fusing unit B174T908.WMF 4-17 B174...

  • Page 84: Horizontal Band

    Hot roller defective The OPC is damaged → Replace the fusing due to incorrect transfer unit voltage from the HVPS → Replace the HVPS → If the same problem persists, replace the drum cartridge B174T909.WMF B174 4-18...

  • Page 85: Irregular Density

    Any dust supply around no-image on the PTL lamp? → Replace the areas? toner cartridge Light distortion due to a Clean the window of the defective mirror or diffused reflection from the LSU → Replace the LSU B174T910.WMF 4-19 B174...

  • Page 86: White Spot

    Dirt on the OPC surface → Replace the toner → Clean the OPC and the cartridge machine, or replace the drum cartridge When installing or removing the drum cartridge, a scratch was made → Replace the cartridge B174T911.WMF B174 4-20...

  • Page 87: Trembling At The End When Ohp Printing

    Other parts touch the fan When multi-page OHP and prevent it from printng, less than 10 turning films are guaranteed. → Check and repair (Reduce the number of films and re-insert after paper check LED is off) B174T912.WMF 4-21 B174...

  • Page 88: Poor Fusing Grade

    Replace the fusing unit Open the top cover. When black printing, Replace the fusing unit is the fusing nip width 3.0 - 3.5 mm? The paper used is too thick or contains too much cotton → Re-test with recommended paper B174T913.WMF B174 4-22...

  • Page 89: Malfunction

    Does the guide bend the Manual Feeding? sheets? • When loading, tap the sheets until the paper sensor detects them in the tray 4. When using long paper, use the Stacker Extender 5. Adjust the guide to fit the paper width 4-23 B174...
  • Page 90 Turn the power off and on. Open and close the side cover to return to the original state. Cassette : Adjust the guide to fit the paper width. Skew Adjust the guide to fit the paper width Is the guide set to the paper width? B174 4-24...
  • Page 91 2. Check whether the Feed Roller is working or not. Does it curl while coming 1. Check if the ADF Upper Cover is closed out? properly. 2. Check that the ADF ass'y is assembled correctly. 4-25 B174...

  • Page 92: No Power (Lcd No Display Led Off)

    Connection error Detection failure between Main board because of a defective and panel board board which detects or malfunction of side cover open or a boards. defective switch → Replace the boards → Replace the board or switch B174T914.WMF B174 4-26...

  • Page 93: Fuser Error

    If not check CN4 on the power board. Thermistor, connection The voltage at point or Main board defect pin #60 of U36 (CPU) on the Main PBA is about 2.65 V → Replace the component/ when printing? board B174T915.WMF 4-27 B174...

  • Page 94: Paper Jam (Mis-Feeding)

    Pull out the Is the extender Paper end curled? extender pulled out? Use recommended <Recommendation> paper Use the bypass tray (MP Feeder) for the thick paper such as envelopes and cardstock B174T916.WMF B174 4-28...

  • Page 95: Paper Jam (Jam 1)

    Check if the shutter fit the paper width static electricity? prevents feeding. The force of the springs pressing the toner cartridge is too weak → Check the set condition Use recommended of the toner cartridge. paper B174T917.WMF 4-29 B174...

  • Page 96: Engine Error

    Main PBA CN7-9, Replace the Main PBA P_MOTOR Signal Check Main PBA CN7-8, Replace the LSU LREADY Signal Check Main PBA CN7-4, Replace the Main PBA LDON Signal Check Main PBA CN7-1, Replace the LSU HSYNC Signal B174T918.WMF B174 4-30...

  • Page 97: Toner Cartridge And Drum Cartridge Service

    If the printed image is light due to the life of the toner cartridge, you can temporarily improve the print quality by redistributing the toner (shake the toner cartridge). But, you should replace the toner cartridge to solve the problem completely. 4-31 B174...

  • Page 98: Symptoms Of A Defective Toner Cartridge

    2. Is the customer using matter is contaminated recycled toner? with toner. 1) Check whether foreign substances or toner are stuck to the terminal (contact point) of the toner cartridge. 2) Check whether the state of the terminal assembly is normal. B174 4-32...
  • Page 99 2 cartridge. times. 2) Check whether the 2) If toner that is nearly state of the terminal expired is collected to assembly is normal. use, it is considered to be recycled. 4-33 B174...
  • Page 100 Clean the terminals of the charge roller, then 1) Check whether foreign recheck it. substances are stuck to the terminal (point of contact) of the toner cartridge and the state of assembly. (Especially check the charge roller terminal.) B174 4-34...

  • Page 101: Problems Caused By Software

    Check if the printer cable is directly If the scanner needs to be connected to connected to a peripheral device the printer, first the remove the scanner from the PC to see if the printer is working alone. 4-35 B174...

  • Page 102: The Printer Is Not Working (2)

    Turn the PC and printer off, and reboot the system to print again. If the problem is not solved, double-click the printer in My Computer and check if the driver version is correct. If the problem still occurs, replace the cable. B174 4-36...

  • Page 103: Abnormal Printing

    Delete unnecessary files to secure memory. (The printing job sometimes enough space on the hard disk, and start stops due to insufficient virtual printing job again. memory, but it is actually because of insufficient space on the hard disk.) 4-37 B174...

  • Page 104: Spooling Error

    Before choosing the document, the menu is still inactive. Or take the document out of the list and repeat the routine as above or finish the spool manager. B174 4-38...

  • Page 105: Service Tables

    SERVICE TABLES...

  • Page 107: User Mode

    CONTRAST (Light ∼ Dark : 5 steps) / IMAGE (TEXT / MIXED / PHOTO) 05. MEMORY SYSTEM ID CLEAR SYSTEM DATA PHONE BOOK / MEMORY TX-RX JOURNAL 06. DELAY TX Enter number 07. MEMORY TX Enter number 08. PRIORITY TX Enter number and name B174...
  • Page 108 ON / OFF 14. TX CONFIRM Message Confirmation Report 15. SCHEDULE JOB Schedule Information List 16. PHONE BOOK Phone Book 17. SYSTEM LIST System Data List 18. TX JOURNAL Transmission Journal 19. RX JOURNAL Reception Journal 20. HELP LIST Help List B174...

  • Page 109: Tech Mode

    ! 5.1 07. MEMORY TX The same as User Mode 08. PRIORITY TX The same as User Mode 09. POLLING The same as User Mode 10. ADD/CANCEL The same as User Mode 11. GROUP DIAL The same as User Mode B174...
  • Page 110 PHONE BOOK Phone Book 17. SYSTEM LIST SYSTEM DATA System Data List 18. TX JOURNAL TRANSMISSION Transmission Journal 19. RX JOURNAL RECEPTION Reception Journal 20. HELP LIST HELP LIST Help List PROTOCOL PROTOCOL DUMP LIST ERROR CODE ERROR CODE REPORT B174...

  • Page 111: System Data

    When “unlimited” is selected, the machine does nothing until the answering operation is completed (this also occurs when a period of silence is detected). After the answering operation is completed, the machine switches to receiving mode. B174...

  • Page 112: Memory Clear

    ON. Then, when the machine asks, input the name and the number of the contact point, the customer's fax number, the model name, and the serial number. SWITCH TEST Use this to test all keys on the operation panel. The LCD window shows the result when you push a key. B174...

  • Page 113: Modem Test

    “NEW DRUM” function in 12. Maintenance ANSWER ON CNG This function sets the number of CNG tones that the machine must detect before it goes into receive mode from the AUTO mode or ANS/FAX mode. B174...

  • Page 114: Adjust Shading

    Use this to set parameters for a specific dialed location (which must be in the one touch or speed dial phone books). These parameters override the default settings to let the machine make calls to destinations with known line problems. REMOTE TEST Use this to make available of RDC (Remote Diagnostic Control) access. B174...

  • Page 115: Reports/Help

    1. Press MENU, #, 1, 9, 3, # in sequence. The firmware version is shown on the LCD. 2. Press 1 (in the number keypad): The LCD display shows "Firmware Updated date" 3. Press 2 (in the number keypad): The LCD display shows "Product first use date" B174...

  • Page 116: Firmware Download

    1. Go into TECH mode. Then get the system data list. 2. Make sure that the correct firmware version is shown on the system data list. • Example: Firmware Version: 6.04 Engine Version: 7.00 Emulation Version: PCL6 3.26 01-05-2004 B174 5-10...

  • Page 117: Re-Programming Procedure After Download

    CAUTION: 1) The sending and receiving fax machines must be the same model. 2) The sending fax must be set up in ECM mode. The receiving machine memory must be set to 100%. If not, the upgrade will fail. 5-11 B174...

  • Page 118: Procedure To Set Country Code

    5. Examine the bottom of the page. Make sure the country code changes to the one you set. • Example: Select Italy 6. Set the power off and on. NOTE: The country code will not change if you change the language. You must set the country code and the language separately. B174 5-12...

  • Page 119: Engine Test Mode

    Check: Check 1’st PAPER Empty Sensor Display 1’st Empty TEST Next: Next Sensor Check Check: Check MP PAPER Empty Sensor Display MP Empty TEST Next: Next Sensor Check Check: Check BIN FULL Sensor Display BIN-F Sen TEST Next: Next Sensor Check 5-13 B174...

  • Page 120: Status Print

    This shows the print engine condition. This is not necessary for service use. This function stays on when you go out of Engine Mode. Make sure to set it off before you go out of Engine Mode. B174 5-14...

  • Page 121: Detailed Descriptions

    DETAILED DESCRIPTIONS...

  • Page 123: Detailed Description

    The main circuit contains the CPU, MFP controller (built-in 32-bit RISC processor core: ARM946ES). It includes I/O device drivers, system memory, scanner, printer, motor driver, PC I/F, and fax transceiver, and it controls all the system. The structure of the main circuit is shown below. B174D901.WMF B174...

  • Page 124: Circuit Operation

    This machine uses a color CCD. • Minimum Scan Line Time for One Color: 2.5 ms • Light Source Power: +18V • Maximum Pixel Frequency: 10MHz • Effective Sensor Elements: 5340 X 3 • Clamp Level: 0.7~ 0.8V • Bright Output: Min 0.8V B174...

  • Page 125: Key Features

    2. White shading data memory: 3x8Kx12 bits = 288K bits ! 384K bits (external) 3. Black shading data memory: 3x8Kx12 bits = 288K bits ! 384K bits (external) Gamma Correction 1. Independent Gamma table for each RGB component 2. Gamma table data memory: 3x1Kx8 bits = 24K bits (internal) B174...

  • Page 126: Binary Conversion (Mono)

    2. Programmable øTG’s period & CLK_LINE’s occurrence number Processed data output format in DTM (Data Transfer Module) 1. DMA mode: Burst/On-demand mode 2. CDIP I/F: LINE_SYNC, PIXEL_SYSNC, PIXEL_DATA[7:0] Others 36 General Purpose Input/Output ports: 8 (GPO), 28 (GPIO) Black/White inversion, and Image Mirroring support B174...

  • Page 127: Smps & Hvps (Also Known As Psu And Power Pack)

    When the thermistor temperature goes up to 210°C, the level of pin 1 (LM393) will turn low to turn the ‘fuseron’ signal to high (this forcefully shuts off Q3). In other words, LM393 shuts off the fusing lamp forcefully. B174...

  • Page 128: Paper Detection Circuit

    If the CPU input does not turn back high a set time after the paper hits the exit sensor, the CPU detects this as “Paper Jam2” (the red LED on the operation panel will turn on). B174...

  • Page 129: Liu (Also Known As Ncu)

    DP dial signal on/off with a coupler. CTR 21 does not have telephone capability but has the number 3 and 4 Line Connection. It has no DP condition but there is a possibility to get approval only on a DTMF Dial based terminal. B174...

  • Page 131: Specifications

    SPECIFICATIONS...

  • Page 133: Specifications

    Pentium IV 1.2 Ghz, 128 MB RAM, 220 MB (Hard Disk) Requirement : Minimum System Pentium II 400 Mhz, 64 MB RAM, 120 MB (Hard Disk) Requirement : LCD : 16 characters x 2 lines Memory : 4 Mbyte for flash Memory , 16 Mbyte for SDRAM B174...

  • Page 134: Print Specification

    Color CCD (Charge Coupled Device) Module Interface: IEEE1284 (ECP Support) USB 1.1 (without HUB Mode) Compatibility: TWAIN Standard, (WIA) Resolution Optical 600 X 600 dpi (Mono and color) Enhanced Max. 4800 dpi Halftone: 256 Levels Effective Scan width: 8.2 inches (208 mm) B174...

  • Page 135: Copy Specification

    Automatic fallback Transmission Speed: Approximately 3 sec (33.6 kbps) Effective Scanning 8.2 inches (208 mm) Width: Halftone: 256 Levels Paper Capacity ADF (Automatic Document Feeder) : 30 sheets (75g/m , 20 lb) (Input): FAX Mode: Standard /Fine/Super Fine/Halftone Memory: B174...

  • Page 136: Paper Handling

    (12.5 ~ 28lb) Capacity 30 sheets (20 lb) Document size width 174mm ~ 216 mm (6.9" ~ 8.5") Document size length 128 mm ~ 356 mm (5.0" ~ 14.0") 8. CONSUMABLES Item Description Type: Separate type Toner Cartridge Drum Cartridge B174...
  • Page 137 APPENDIX...

  • Page 139: Appendix Appendix

    APPENDIX APPENDIX BLOCK DIAGRAMS B174X900A.WMF APPENDIX B174...

  • Page 140: Connection Diagrams

    APPENDIX CONNECTION DIAGRAMS B174X901B.WMF B174 APPENDIX...

  • Page 141: Parts Catalog

    B174 PARTS CATALOG...
  • Page 143 PARTS CATALOG PARTS CATALOG B174 TABLE OF CONTENTS PARTS LOCATION AND LIST 1. MAIN ASSEMBLY ................... 2 2. PLATEN ASSEMBLY ..................4 3. ADF ASSEMBLY ..................... 7 4. SIDE COVER ASSEMBLY ................9 5. CASSETTE ASSEMBLY ................10 6. EXIT ASSEMBLY ..................11 7.

  • Page 145: Parts Location And List

    B174 PARTS LOCATION AND LIST...
  • Page 147 This section instructs you as to the numbers and names of parts on this machine.

  • Page 148: Main Assembly

    MAIN ASSEMBLY 1. MAIN ASSEMBLY B174C900.WMF B174 Parts Location and List...
  • Page 149 HOLDER ASS'Y - TRANSFER ROLLER : R B1749528 HOLDER ASS'Y - TRANSFER ROLLER : L B1749534 CAM - PAPER EXIT B1749535 LOCK LEVER - TONER CARTRIDGE B1749536 LEVER - PAPER EXIT B1749529 GEAR - TRANSFER ROLLER B1749530 TRANSFER ROLLER Parts Location and List B174...

  • Page 150: Platen Assembly

    PLATEN ASSEMBLY 2. PLATEN ASSEMBLY 15-1 B174C901.WMF B174 Parts Location and List...
  • Page 151 PLATEN ASSEMBLY 15-1, 16 B174C902.WMF Parts Location and List B174...
  • Page 152 FLAT CABLE - CCD B1749739 OP-PORT ASS'Y - NA 15-1 B1749744 ONE TOUCH KEY SHEET - ENGLISH B1749741 ONE TOUCH KEY SHEET - FRENCH B1749742 ONE TOUCH KEY SHEET - SPANISH B1749743 ONE TOUCH KEY SHEET - PORTUGUESE B174 Parts Location and List...

  • Page 153: Adf Assembly

    ADF ASSEMBLY 3. ADF ASSEMBLY B174C903.WMF Parts Location and List B174...
  • Page 154 DOCUMENT SENSOR B1749604 ADF MAIN CABLE B1749605 ADF MOTOR B1749606 ADF PICK-UP ASS'Y B1739586 PAPER GUIDE - ADF TOP COVER B1749608 ADF TOP COVER B1749609 ADF SIDE COVER - LEFT B1749610 ADF SIDE COVER - RIGHT B174 Parts Location and List...

  • Page 155: Side Cover Assembly

    BYPASS TRAY ASS'Y B1749629 CASE - BYPASS TRAY B1749630 EXTENSION - BYPASS TRAY B1749631 PAPER GUIDE - BYPASS TRAY B1749632 COVER - BYPASS TRAY B1749634 TRAY LINK - BYPASS B1749637 TIE STRAP B1749644 RIGHT COVER Parts Location and List B174...

  • Page 156: Cassette Assembly

    CASSETTE ASSEMBLY 5. CASSETTE ASSEMBLY B174C905.WMF Index Part No. Description Q'ty B1749646 CASSETTE ASS'Y B1749647 PAPER FINGER - RIGHT B1749655 HANDLE - SIDE FENCE B1749660 CASSETTE GRIP B174 Parts Location and List...

  • Page 157: Exit Assembly

    EXIT ASSEMBLY 6. EXIT ASSEMBLY B174C906.WMF Index Part No. Description Q'ty B1749663 EXIT ROLLER B1749664 DECURL - EXIT ROLLER B1749670 IDLE - EXIT ROLLER F B1749671 IDLE - EXIT ROLLER R B1749673 PAPER BIN FULL SENSOR Parts Location and List B174...

  • Page 158: Feeder Roller Assembly

    FEEDER ROLLER ASSEMBLY 7. FEEDER ROLLER ASSEMBLY B174C907.WMF Index Part No. Description Q'ty B1749675 PAPER FEED GEAR ASS'Y B1749676 PAPER FEED ROLLER B1749677 PAPER FEED ROLLER - IDLE B174 Parts Location and List...

  • Page 159: Mp Assembly

    Part No. Description Q'ty B1749678 PAPER PICK-UP ROLLER ASS'Y B1749681 SOLENOID - PICK-UP B1749684 ACTUATOR - PAPER PICK-UP B1749688 HOLDER - FRICTION PAD B1749689 HOLDER - PICK-UP ACTUATOR B1749691 FRICTION PAD B1749693 PAPER PICK-UP SENSOR Parts Location and List B174...

  • Page 160: Base Flame Assembly

    BASE FRAME ASSEMBLY 9. BASE FRAME ASSEMBLY B174C909.WMF Index Part No. Description Q'ty B1749694 RUBBER FOOT - ML80 B1749698 FRONT COVER - DUMMY B1749699 MONITOR SPEAKER B1749700 COOLING FAN - LASER UNIT B174 Parts Location and List...
  • Page 161 Description Q'ty B1749703 TONER SENSOR - TX B1749704 QUENCHING LAMP B1749706 LENS - TONER SENSOR B1749707 PAPER FEED AND END SENSORS B1749709 RUBBER - PAPER PICK-UP : RIGHT B1749710 RUBBER - PAPER PICK-UP : LEFT Parts Location and List B174...

  • Page 162: Driver Assembly

    DRIVER ASSEMBLY 11. DRIVER ASSEMBLY B174C911.WMF Index Part No. Description Q'ty B1749714 STEPPING MOTOR - M49SP-2K B1749717 SOLENOID - DUPLEX B1749720 STEPPING MOTOR - M4PSP-2NK B174 Parts Location and List...

  • Page 163: Main Frame Assembly

    MAIN FLAME ASSEMBLY 12. MAIN FLAME ASSEMBLY B174C912.WMF Parts Location and List B174...
  • Page 164 B1749706 LENS - TONER SENSOR B1749725 MICRO SWITCH B1749726 EXIT SENSOR B1749727 TONER SENSOR B1749730 JOINT HARNESS - THERMISTOR B1749731 TERMINAL HOUSING B1749732 TERMINAL - FUSING B1749733 CAP - CONNECTOR L B1749734 CAP - CONNECTOR U B174 Parts Location and List...

  • Page 165: Fuser Assembly

    FUSER ASSEMBLY 13. FUSER ASSEMBLY B174C913.WMF Index Part No. Description Q'ty B1749737 FUSING UNIT Parts Location and List B174...
  • Page 167 B174 PARTS INDEX...
  • Page 169 This section instructs you as to the numbers and names of parts on this machine.
  • Page 171 SPRING - TIMING BELT B1749547 PCB - SCANNER BOARD B1749557 CCD HOLDER 2-10 B1749558 SCANNER BASE - OP-PORT 2-11 B1749565 CCD UNIT 2-13 B1749566 FLAT CABLE - CCD 2-14 B1749568 DOCUMENT TABLE B1749570 DOCUMENT GUIDE - LEFT B174 Parts Index...
  • Page 172 B1749664 DECURL - EXIT ROLLER B1749670 IDLE - EXIT ROLLER F B1749671 IDLE - EXIT ROLLER R B1749673 PAPER BIN FULL SENSOR B1749675 PAPER FEED GEAR ASS'Y B1749676 PAPER FEED ROLLER B1749677 PAPER FEED ROLLER - IDLE B174 Parts Index...
  • Page 173 OP-PORT ASS'Y - NA 2-15 B1749744 ONE TOUCH KEY SHEET - ENGLISH 2-15-1 B1749741 ONE TOUCH KEY SHEET - FRENCH 2-16 B1749742 ONE TOUCH KEY SHEET - SPANISH 2-16 B1749743 ONE TOUCH KEY SHEET - PORTUGUESE 2-16 Parts Index B174...

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