Ricoh FAX2000L Service Manual
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Ricoh FAX2000L Service Manual

Ricoh FAX2000L Service Manual

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SCHMIDT 1 TAIWAN
RICOH FAX2000L
SERVICE MANUAL
30 November, 1999
Subject to change

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  • Page 1 SCHMIDT 1 TAIWAN RICOH FAX2000L SERVICE MANUAL 30 November, 1999 Subject to change...
  • Page 2 Important Safety Notices H545R500.WMF Laser Safety ø WARNING FOR LASER UNIT This machine contains a laser beam generator. Laser beams can cause permanent eye damage. Do not open the laser unit or look along the laser beam path while the main power is on. Lithium Batteries (Memory Back-up) ø...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1. OVERALL MACHINE INFORMATION ........1-1 1.1 SPECIFICATIONS ..................1-1 1.2 FEATURES....................1-3 1.3 COMPONENT LAYOUT ................1-7 1.3.1 MECHANICAL COMPONENTS............1-7 1.3.2 ELECTRICAL COMPONENTS ............1-9 1.4 OVERALL MACHINE CONTROL ............1-13 1.5 VIDEO DATA PATH ................1-14 1.5.1 TRANSMISSION................
  • Page 4 3. INSTALLATION................3-1 3.1 INSTALLING THE MACHINE ..............3-1 3.2 INITIAL PROGRAMMING................. 3-1 3.3 INSTALLING OPTIONAL UNITS .............. 3-1 4. SERVICE TABLES AND PROCEDURES ........4-1 4.1 SERVICE LEVEL FUNCTIONS ..............4-1 4.1.1 BIT SWITCH PROGRAMMING (FUNCTION 01)......4-1 4.1.2 SYSTEM PARAMETER LIST (FUNCTION 02)........ 4-2 4.1.3 ERROR CODE DISPLAY (FUNCTION 03)........
  • Page 5 5. PREVENTIVE MAINTENANCE ........... 5-1 5.1 SPECIAL TOOLS AND LUBRICANTS ............. 5-1 5.2 PM TABLE ....................5-1 6. REPLACEMENT AND ADJUSTMENT........6-1 6.1 EXTERIOR ....................6-1 6.1.1 TOP COVER..................6-1 6.1.2 OPERATION PANEL ............... 6-2 6.2 ADF......................6-2 6.2.1 FEED ROLLER ASSEMBLY............6-2 6.2.2 SEPARATION ROLLER ..............
  • Page 6 6.11.1 OVERVIEW ................. 6-25 6.11.2 SCANNER PARAMETERS............6-26 6.11.3 PRINTER PARAMETERS............6-27 6.11.4 SCANNER VIDEO PROCESSING PARAMETERS..... 6-29 7. TROUBLESHOOTING..............7-1 7.1 COPY QUALITY TROUBLESHOOTING ..........7-1 7.1.1 BLANK COPIES................7-2 7.1.2 BLACK COPIES................7-2 7.1.3 DIRTY BACKGROUND ..............7-3 7.1.4 UNEVEN IMAGE DENSITY .............

  • Page 7: Overall Machine Information

    PSTN, PABX Protocol Connection Group 3 with ECM Direct couple Modulation Document Size V.34, V.33 (Ricoh mode only), Length: V.17 (TCM), V.29 (QAM), V.27ter 105 - 364 mm (PHM), V.21 (FM) Up to 1.2 m, manually assisted Width: Data Rate (BPS)
  • Page 8 SPECIFICATIONS 30 November, 1999 Power Supply Dimensions (W x D x H) 110 ± 20 Vac, 60 ± 1 Hz 399 x 730 x 323 mm Including trays (Maximum dimensions) Power Consumption (Max) Weight Standby: Minimum 2 W; Normal 10 W Approx.

  • Page 9: Features

    30 November, 1999 FEATURES 1.2 FEATURES Communication Features - Auto KEY: O = Used, X = Not Used, A = With optional memory only Resolutions available for B = With optional paper feed unit only reception Fine Super fine Equipment Substitute reception V.34 communication Book scan...
  • Page 10 FEATURES 30 November, 1999 Communication Features - Communication Features - User Selectable Service Selectable Parallel memory Continuous polling reception transmission Dedicated TX parameters Personal codes Personal codes with conf. ID Partial image area scanning Inch-mm conversion Polling reception Page retransmission times Polling transmission Protection against bad Polling tx file lifetime in the...
  • Page 11 30 November, 1999 FEATURES Other User Features Reports – User-initiated Printing a memory file Speed dial list Quick dial label printing Transmission status report RDS on/off User parameter list Reception mode switching timer Service Mode Features Reception time printing Back-to-back test Remaining memory indicator Bit switch programming Remote ID...
  • Page 12 FEATURES 30 November, 1999 Service Mode Features System parameter list Technical data on the Journal Thermal head parameters Memory Files Maximum number of files: 100 Maximum number of stations/file: 100 Maximum number of stations: 200...

  • Page 13: Component Layout

    30 November, 1999 COMPONENT LAYOUT 1.3 COMPONENT LAYOUT 1.3.1 MECHANICAL COMPONENTS H545V501.WMF Name Description R2 Roller Feeds the document through the scanner. R1 Roller Feeds the document through the scanner. Separation Roller Allows one page into the scanner. Document Feed Belt Feeds the document into the scanner.
  • Page 14 COMPONENT LAYOUT 30 November, 1999 Name Description Transfer Roller Applies a charge to the paper to pull the toner off the drum and onto the copy paper. Hot Roller Heat from this roller fuses the toner to the copy paper. Fusing Pressure Roller Applies pressure to the paper during the fusing process.

  • Page 15: Electrical Components

    30 November, 1999 COMPONENT LAYOUT 1.3.2 ELECTRICAL COMPONENTS H545V502.WMF H545V509.WMF...
  • Page 16 COMPONENT LAYOUT 30 November, 1999 1. PCBs Name Description CIS (Contact Image This sensor reads and converts the light reflected from Sensor) the document into an analog video signal. LDDR (Laser Diode This board drives the laser diode. Driver) NCU (Network Control This board contains relays and switches for interfacing Unit) the machine with the network and the handset.
  • Page 17 30 November, 1999 COMPONENT LAYOUT 4. Interlock Switches Name Description Interlock Switches If the fusing unit cover and/or top cover are open, these switches interrupt the +5VLD power supply for the laser diode and the +24VD power supply for the power pack, motors, and other components.
  • Page 18 COMPONENT LAYOUT 30 November, 1999 6. Optional Paper Feed Unit H545V504.WMF Name Description Paper End Sensor This detects when the paper in the cassette has run (Paper Feed Unit) out. Paper Feed Roller Picks up the top sheet of paper from the stack in the (Paper Feed Unit) cassette, and feeds it into the printer.

  • Page 19: Overall Machine Control

    30 November, 1999 OVERALL MACHINE CONTROL 1.4 OVERALL MACHINE CONTROL IC Card Interface S Y S T E M B U S Printer Control Flash FCIP2 D R A M SR A M R O M Energy Scanner Modem Saver Data &...

  • Page 20: Video Data Path

    VIDEO DATA PATH 30 November, 1999 1.5 VIDEO DATA PATH 1.5.1 TRANSMISSION Original Contact Image Sensor Assembly Image Sensor L E D Amplifier Video M D M Amplifier Processing FCIP2 M e m o r y D C R DATA/ADDRESS BUS Attenuator D R A M Line Buffer...

  • Page 21: Reception

    30 November, 1999 VIDEO DATA PATH 1.5.2 RECEPTION MDM: Modem From the Network DCR: Data Compression and Reduction LIF: Laser Interface Amplifier FCIP2 D C R Data/ Address Bus LDDR Line Buffer ECM/SAF Page /FIFO Memory Memory Memory DRAM Copy Paper H545V507.WMF Data from the line passes to the modem through the NCU and hybrid integrated circuit (HIC).

  • Page 22: Copying

    VIDEO DATA PATH 30 November, 1999 1.5.3 COPYING Original Contact Image Sensor Assembly Image Sensor L E D Amplifier D I P Video Processing FCIP2 Memory D C R D A T A / A D D R E S S B U S Line Buffer ECM/SAF Page...

  • Page 23: Power Distribution

    30 November, 1999 POWER DISTRIBUTION 1.6 POWER DISTRIBUTION 1.6.1 DISTRIBUTION DIAGRAM P a p e r F e e d P o l y g o n Main P a p e r F e e d C a r d Unit M o t o r M o t o r...

  • Page 24: Memory Back-Up Circuit

    POWER DISTRIBUTION 30 November, 1999 1.6.2 MEMORY BACK-UP CIRCUIT F C U + 5 V IC Card P O W E R S 1 V D E T Switching F C I P 2 Circuit 1 S A F F G 5 R T C C S System D R A M...

  • Page 25: Detailed Section Descriptions

    30 November, 1999 SCANNER 2. DETAILED SECTION DESCRIPTIONS 2.1 SCANNER 2.1.1 MECHANISMS 1. Document Detection H545D002.WMF The document sensor [A] detects a document when it is placed in the ADF. The document width sensor [B] detects if the document is A4 or B4 width. 2.
  • Page 26 SCANNER 30 November, 1999 4. Image Scanning H545D503.WMF The image sensor [B] consists of a row of photosensitive elements (B4 width x 8 dots/mm). The document reflects light from the LED array and the rod lens array focuses it onto the image sensor. Because of the short optical path inside the CIS, the focal depth is much shorter than for a CCD type scanner.

  • Page 27: Jam Conditions

    30 November, 1999 SCANNER 2.1.2 JAM CONDITIONS The main CPU detects a document jam if one of the following conditions occurs. Error Jam Condition Description Code Non-feed The feed mechanism attempts to feed the 1-00 paper once every second for a maximum of 6 seconds.

  • Page 28: Printing

    PRINTING 30 November, 1999 2.2 PRINTING 2.2.1 PRINTING PROCESS - OVERVIEW -1.2kV -200V +4.3 µ µ µ µ A -650V (0V) H545D521.WMF This machine uses a “write-to-black” system, with negative toner. • The charge-brush roller gives the drum surface an approximate negative charge of -750 V.

  • Page 29: Opc Drum

    30 November, 1999 PRINTING 2.2.2 OPC DRUM H545D504.WMF The cartridge contains an organic photo-conductor drum [A]. The diameter of the drum is 24 mm. The main motor [B] drives it through a gear train. The same gear train also drives the toner application roller [C], development roller [D], and transfer roller [E].

  • Page 30: Laser Exposure

    PRINTING 30 November, 1999 2.2.4 LASER EXPOSURE Overview H545D505.WMF • The focusing lens [A] is a double toroidal lens that has a barrel toroidal surface on both sides. • The shield glass [B] prevents toner and dust from entering the laser optics area.
  • Page 31 30 November, 1999 PRINTING Block Diagram LDDR Laser Synch Laser Detector Synch 26-4 Detector Circuit FCIP2 LD Enable Laser D A T A Diode Controller Control Mirror Motor Lock 10-4 Polygon Laser Mirror Mirror Motor Enable Diode Drive Unit EXIO 10-3 H545D506.WMF The LIF (Laser Interface) circuit inside the FCIP2 monitors and controls the laser...

  • Page 32: Toner Supply

    PRINTING 30 November, 1999 2.2.5 TONER SUPPLY H545D519.WMF This machine uses mono-component toner, composed of resin and ferrite. The toner mixing bar [A] stirs and carries toner to the toner application roller [B]. The toner application roller supplies toner to the development roller [C]. The main motor drives the toner supply mechanism through a gear train.
  • Page 33 30 November, 1999 PRINTING Toner End Detection H545D516.WMF The toner end sensor [A] below the toner tank detects toner near-end. While the main motor rotates, the machine detects toner end by the voltage output from the toner end sensor. The voltage from the sensor is close to 5V when the toner tank is full and decreases when the toner is almost used up.

  • Page 34: Development

    PRINTING 30 November, 1999 2.2.6 DEVELOPMENT H545D519.WMF Overview The toner supply bar [A] stirs and carries toner to the toner application roller [B]. The toner application roller is a sponge-like structure which carries toner to the development roller [D]. As the development roller [D] turns past the toner metering blade [C], only a thin coating of negatively charged toner particles stays adhered.
  • Page 35 30 November, 1999 PRINTING Development Bias H545D518.WMF The power pack [A] applies one voltage to the toner application roller [B] and toner metering blade [C], and a different voltage to the development roller [D]. Bias Control (During Printing) The power pack applies a charge of -650V to the toner application roller, and -400V to the development roller.
  • Page 36 PRINTING 30 November, 1999 Bias Control (After Each Page) At the start and the end of any print process (including the cleaning mode), the power pack applies 0V to the toner application roller, and +250V to the development roller. This is to prevent toner from transferring to the drum. Toner Development Roller + 250V...
  • Page 37 30 November, 1999 PRINTING Bias Control Circuit Toner Application B I A S P W M Roller 11-8 B I A S C T L 11-7 D e v e l o p m e n t Power FCIP2 Transfer H Roller GEPC 1 1 - 1 0...

  • Page 38: Paper Feed

    PRINTING 30 November, 1999 2.2.7 PAPER FEED Overview H545D511.WMF The standard cassette [A] holds 250 sheets. An optional paper feed unit, which holds up to 500 sheets, is available (only one of these can be installed). NOTE: An optional multi-purpose feeder [B] is not available in the Taiwan model. 2-14...
  • Page 39 30 November, 1999 PRINTING Paper Lift Mechanism Standard Cassette H545D525.WMF After loading the paper and closing the cassette, the projection [A] pushes the slide lock [B] off the bottom hook [C]. Once the slide lock comes off, the pressure spring lifts the bottom plate. Optional Paper Feed Unit H545D513.WMF After loading the paper and closing the cassette, the projection [A] pushes the lever...
  • Page 40 PRINTING 30 November, 1999 Paper End Detection Standard Cassette/Optional Paper Feed Unit H545D527.WMF When the cassette runs out of paper, the paper end sensor actuator [A] drops through a slot in the bottom plate. Paper End Sensor Paper End 25-6 Standard Cassette EXIO FCIP2...
  • Page 41 30 November, 1999 PRINTING Pick-up and Separation Standard Cassette and Optional Paper Feed Unit The pick-up and separation mechanism is a separation pad type. The separation pad and the paper feed roller allow only one sheet to feed. Cross Reference Group 3 Facsimile Manual: section 4-5-4 The paper feed motor in the mainframe starts to rotate when the printer is ready for printing.
  • Page 42 PRINTING 30 November, 1999 Optional Paper Feed Unit H545D508.WMF The paper feed motor in the mainframe drives the paper feed mechanism through a gear train. When the optional paper feed unit is used, the paper feed motor turns counter-clockwise, driving the paper feed roller [A] and the transport roller [B], as shown.

  • Page 43: Registration

    30 November, 1999 PRINTING 2.2.8 REGISTRATION H545D523.WMF When the paper edge sensor [A] turns on, the machine slows the paper feed motor. Then, a certain time after the paper’s leading edge turns on the registration sensor, the machine starts to write the latent image to the drum. When the paper edge sensor turns off, the machine speeds up the paper feed motor to feed the next page and stops the laser.
  • Page 44 PRINTING 30 November, 1999 Jam Detection Condition Error Code Standard Cassette When the paper edge sensor does not turn on 9-07 within 2.6 seconds of the paper jam timing signal. When the registration sensor is not turned on 9-84 within 5.5 seconds after the paper edge sensor turns on.

  • Page 45: Transfer And Separation

    30 November, 1999 PRINTING 2.2.9 TRANSFER AND SEPARATION H545D526.WMF Instead of using a transfer corona wire, this machine uses a transfer roller, which touches the drum surface. The power pack [A] applies a constant current of +4.3 µA to the transfer roller [B]. The positively biased transfer roller pulls negatively charged toner off the drum.

  • Page 46: Cleaning

    PRINTING 30 November, 1999 Cleaning Mode If the paper is smaller than the printed image, or if a paper jam occurs during printing, toner may transfer to the roller surface. To prevent this from occurring, the transfer roller is cleaned before the next printing run. While the machine is cleaning the transfer roller, the power pack supplies -1200V to the transfer roller, and charges the drum to -750V.

  • Page 47: Fusing

    30 November, 1999 PRINTING 2.2.11 FUSING Fusing Lamp Control During printing, the machine keeps the fusing temperature at 170°C. If the printing operation continues for more than 3 minutes, the machine keeps the fusing temperature at 160°C. When the Energy Saver Key is pressed or the energy saver timer expires, the machine goes into an energy saver mode.
  • Page 48 PRINTING 30 November, 1999 Fusing Control Comparator 24-1 Thermistor Max Thermistor Thermistor Temp 24-2 FCIP2 THR SEL Fusing Lamp P S U Thermofuse Thermostat H545D662.WMF The thermofuse is installed only in the Europe model. During normal operation, the CPU controls the fusing lamp based on input from the thermistor using the above circuit.
  • Page 49 30 November, 1999 PRINTING Fusing Unit Drive H545D524.WMF The main motor [A] drives the fusing unit through a gear train. The fusing exit sensor [B] detects when the paper is fed out of the unit. After opening the upper unit, the gear train frees up making it easy to remove jammed paper.
  • Page 50 PRINTING 30 November, 1999 Fusing Unit Service Call Conditions Conditions Error Code (9-22) At power on If there is a problem with the thermistor. Sub-code 09 (Also for when the machine returns to Normal Mode from Energy Saver Mode Level 2.) If the machine detects that both jumper 63 and Sub-code 0B jumper 64 are shorted.

  • Page 51: System Features

    30 November, 1999 SYSTEM FEATURES SYSTEM FEATURES 2.3.1 ENERGY SAVER MODES In normal mode (during operation) or energy saver mode level 1, the main CPU monitors and controls the machine. The fusing lamp is either turned off or maintained at the standby temperature (80 °C), depending on the User Parameter Switch 05 bit 6 setting.
  • Page 52 SYSTEM FEATURES 30 November, 1999 Manual Wake Up Conditions While the machine is in Energy Saver Mode, either the Energy Saver CPU (Level 2) or the main CPU (Level 1) monitors signals from the following: • Energy Saver key • Document sensor •...

  • Page 53: Automatic Service Calls

    30 November, 1999 SYSTEM FEATURES 2.3.2 AUTOMATIC SERVICE CALLS Service Call Conditions The machine makes an automatic service call when one of the following conditions occurs. Service Call Conditions Error Code Sub-code (8003B5H) Laser diode failure 9-20 Fusing lamp failure 9-22 01 to 0B Hexagonal mirror motor failure...

  • Page 54: Sep/Sub Coding

    SYSTEM FEATURES 30 November, 1999 2.3.3 SEP/SUB CODING Overview ITU-T introduced the following protocol signals in the T.30 recommendation in 1996. These signals enable confidential transmission and secured polling between machines produced by different manufacturers. SEP (Selective Polling): This signal informs the other terminal of the polling ID to enable secured (ID) polling.
  • Page 55 30 November, 1999 SYSTEM FEATURES Selective Polling (SEP/PWD) C E D N S F N S C o r D T C N S S o r D C S T C F C F R H545D560.WMF SEP Signal: When the RX terminal receives the SEP signal with the NSC or DTC signal, the RX terminal switches over to secured polling transmission using the SEP ID.
  • Page 56 SYSTEM FEATURES 30 November, 1999 Sub-address (SUB/SID) C E D N S F S U B N S S o r D C S T C F C F R H545D561.WMF SUB Signal: The SUB (sub-address) signal transmitted from the TX terminal contains a confidential ID.

  • Page 57: Page Separation And Data Reduction

    30 November, 1999 SYSTEM FEATURES 2.3.4 PAGE SEPARATION AND DATA REDUCTION Incoming pages that are only slightly longer than the copy paper may be reduced in the sub-scan direction. Whether or not this happens depends on the settings of printer switches 04 and 05. Reduction Enabled If bit 0 of printer switch 03 is at 1 (Enabled), the data will be reduced in the page memory to fit on the copy paper.
  • Page 58 SYSTEM FEATURES 30 November, 1999 Reduction Disabled If bit 0 of printer switch 03 is at 0 (Disabled), the data will not be reduced. In addition, if the incoming page is up to x mm longer than the copy paper, the excess portion will not print.

  • Page 59: Memory Reception Conditions

    30 November, 1999 SYSTEM FEATURES 2.3.5 MEMORY RECEPTION CONDITIONS User parameter switch 05 bit 1 allows the user to select how to treat an incoming message that is without RTI or CSI. User parameter switch 05 Bit-1: Memory reception if no RTI or CSI received 0: Possible, 1: Impossible If 0 is selected, the machine receives all messages regardless of RTI and CSI.

  • Page 60: V.8/V.34 Protocol

    SYSTEM FEATURES 30 November, 1999 2.3.6 V.8/V.34 PROTOCOL Please refer to the V.8/V.34 Training Manual for overall information about V.8/V.34 protocol. This section explains only functions that are specific to this machine. Data Rate Change Procedure Shift-down Request from Receiving Terminal 6619NESV Fax data 9 (default)
  • Page 61 30 November, 1999 SYSTEM FEATURES Shift-down Request from Sending Terminal 6619NESV Fax data P P R 6619NESV Fax data P P R 6619NESV Fax data P P R 6619NESV Fax data P P R 6619NESV Fax data 6KLIWGRZQ M P h M P h M C F / P P R...

  • Page 62: Blank Sheet Detection

    SYSTEM FEATURES 30 November, 1999 2.3.7 BLANK SHEET DETECTION When the machine scans the document for transmission, it counts the black pixels. If the number of black pixels is below a certain threshold, the machine displays an error message (BLANK DOCUMENT). Immediate transmission When the machine detects one or more blank pages, the LCD displays an error message for 20 seconds after transmission.

  • Page 63: Pcbs

    30 November, 1999 PCBS 2.4 PCB 2.4.1 FCU IC Card P o w e r Pack Motor Main G E P C Driver Motor Energy Saver C P U FCIP2 SYSTEM BUS E X I O Flash D R A M S R A M R O M V I D E O...
  • Page 64 PCBS 30 November, 1999 Modem (Rockwell R288F) • V.21, V.27ter, V.29, V.17, V.33 (Ricoh mode only), and V.34 modems GEPC • Power pack and main motor control Oscillators • 29.952 MHz oscillator for system, scanner and printer clock generation • 32.768 MHz oscillator for the real time clock. The battery on the FCU backs this up •...

  • Page 65: Psu

    30 November, 1999 PCBS 2.4.2 PSU Main Switch Fuse(F1) Fuse(F2) +24 V +24 V Surge Switching COM1 Protection Circuit COM1 COLD COM1 +24 V Surge Protection 8 Pin 1HTORON Phase Control 1HTON AC Heater H545D501.WMF • +24Vdc generation • Fusing lamp AC power supply and control 2-41...

  • Page 66: Ncu (Usa/Taiwan)

    PCBS 30 November, 1999 2.4.3 NCU (USA/TAIWAN) B R 1 O H D I S W TRXD 2 4 V Current RING Sensor OHDISW Hook0 Hook1 Ex Ring Ring Detect RITONE Relay Ext. Tel DP/Off- Ex TDI Hook Detection CMLSW H545D550.WMF Jumpers Item...

  • Page 67: Installing The Machine

    30 November, 1999 INSTALLING THE MACHINE 3. INSTALLATION 3.1 INSTALLING THE MACHINE Refer to the Operator's Manual for information about the installation environment and instructions on how to install and set up the machine. 3.2 INITIAL PROGRAMMING Items to Program (Service Level) Function No.

  • Page 68: Service Tables And Procedures

    30 November, 1999 SERVICE LEVEL FUNCTIONS 4. SERVICE TABLES AND PROCEDURES 4.1 SERVICE LEVEL FUNCTIONS In this section, the following symbols refer to frequently used keys: - Start key - Stop key - Function key - Yes key - No key - Up arrow key - Down arrow key á...

  • Page 69: System Parameter List (Function 02)

    SERVICE LEVEL FUNCTIONS 30 November, 1999 4.1.2 SYSTEM PARAMETER LIST (FUNCTION 02) The format of the list is as follows: FUNCTION KPAD/NEXT> SERVICE FUNCTIONS ç ì ä ä å then immediately press í ë : 4 START PARAMETER LIST 3. Finish: 4.1.3 ERROR CODE DISPLAY (FUNCTION 03) ç...

  • Page 70: Pc Protocol Dump (Function 05)

    30 November, 1999 SERVICE LEVEL FUNCTIONS 4.1.6 PC PROTOCOL DUMP (FUNCTION 05) ç ì ä ä å FUNCTION KPAD/NEXT> SERVICE FUNCTIONS then immediately press í è : 0-G3 1-PC ì START PC PROTOCOL DUMP 5. Finish: 4.1.7 RAM DISPLAY/REWRITE (FUNCTION 06) ç...

  • Page 71: Counter Display/Rewrite (Function 07)

    SERVICE LEVEL FUNCTIONS 30 November, 1999 ì MEMORY DUMP START/N ADD.000000 - 0000FF 4. Enter the first four digits of the start and end MEMORY DUMP START/N addresses. For example, enter “8000” for the ADD.800000 - 8001FF start address 800000(H), and enter 8001 for the end address 8001FF(H).

  • Page 72: Ncu Parameters (Function 08)

    30 November, 1999 SERVICE LEVEL FUNCTIONS 4.1.10 NCU PARAMETERS (FUNCTION 08) ç ì ä ä å FUNCTION KPAD/NEXT> SERVICE FUNCTIONS then immediately í å : í 0-NCU 1-MODEM 2-DTMF 3-V8 4. Scroll through the parameters using KPAD/<> á ã . If you want to change a value, enter NO.04 = 005 the new value at the keypad, then press Example: Set NCU parameter 04 to 005.

  • Page 73: Modem Test (Function 08)

    SERVICE LEVEL FUNCTIONS 30 November, 1999 DTMF TEST START/<> 6. To stop the test: TONE 7. To finish: 4.1.13 V.8 MODEM TEST (FUNCTION 08) FUNCTION KPAD/NEXT> SERVICE FUNCTIONS ç ì ä ä å 0-NCU 1-MODEM 2-DTMF 3-V8 then immediately press í...

  • Page 74: Ringer Test (Function 08)

    30 November, 1999 SERVICE LEVEL FUNCTIONS 4.1.15 RINGER TEST (FUNCTION 08) FUNCTION KPAD/NEXT> ç ì ä ä å SERVICE FUNCTIONS then immediately press 0-NCU 1-MODEM í å : 2-DTMF 3-DETECT á è 4-V34 5-RINGER START 5. To stop : RINGER 6.

  • Page 75: Adf Test (Function 10)

    SERVICE LEVEL FUNCTIONS 30 November, 1999 4.1.18 ADF TEST (FUNCTION 10) FUNCTION KPAD/NEXT> ç ì ä ä å SERVICE FUNCTIONS then immediately press ì í : 0-LAMP 1-ADF ì START 4. Place a document in the feeder, then press 5. To stop the test, press 6.

  • Page 76: Ram Tests (Function 12)

    30 November, 1999 SERVICE LEVEL FUNCTIONS 4.1.21 RAM TESTS (FUNCTION 12) FUNCTION KPAD/NEXT> ç ì ä ä å SERVICE FUNCTIONS then immediately press ì ë : 0-SRAM 1-DRAM 2-SAFCARD 3-MÆR 3. Either: í 4 Test the SRAM: Press ì 4 Test the DRAM: Press ë...

  • Page 77: Software Upload (Function 12)

    SERVICE LEVEL FUNCTIONS 30 November, 1999 3. Turn on the machine. FUNCTION KPAD/NEXT> ç ì ä ä å SERVICE FUNCTIONS then immediately press ì ë : 0-SRAM 1-SAF 2-SAFCARD 3-M->R á é OK!! COPY MACH <- FLROM If the software downloads successfully, the display shows "OK".

  • Page 78: Sram Data Download (Function 12)

    30 November, 1999 SERVICE LEVEL FUNCTIONS ê 4 OK!! COPY MACH -> FLROM If the software uploads successfully, the display shows "OK". If the software upload fails, the display shows NG!! "NG". COPY MACH -> FLROM 7. Finish : 8. Turn off the machine and disconnect the tool. Then turn the machine back on again.

  • Page 79: Service Station Fax Number (Function 13)

    ç ì ä ä å SERVICE FUNCTIONS then immediately press ì é : SERIAL # KPAD „„„„„„„„„„„„„„„„„ 3. Enter the serial number at the keypad. SERIAL # KPAD/Y/N To correct a mistake: RICOH 1234567 4. If the display is correct: 5. Finish: 4-12...

  • Page 80: Bit Switches

    30 November, 1999 BIT SWITCHES 4.2 BIT SWITCHES ø WARNING Do not adjust bit switches described as "Not used", as this may cause the machine to malfunction or to operate in a manner that is unacceptable under local regulations. Such bits are only for use in other areas, such as Japan. NOTE: This manual does not list default settings for bit switches.
  • Page 81 BIT SWITCHES 30 November, 1999 System Switch 00 FUNCTION COMMENTS Technical data printout on 1: Instead of a personal code, the Journal Journal lists the following data for each analog G3 0: Disabled communication. 1: Enabled E.g. 32 V34 288 M 01 00 03 02 First number: Symbol rate (V.34 only) Second number: Final modem type used Third number: Final date rate (for example,...
  • Page 82 30 November, 1999 BIT SWITCHES How to calculate the RX level listed on the Journal (when bit 2 of system switch 00 is set to 1) Example: 32 V34 288 L 01 00 00 00 The four-digit hexadecimal value (N) after L indicates the RX level. The high byte is given first, followed by the low byte.
  • Page 83 BIT SWITCHES 30 November, 1999 System Switch 02 FUNCTION COMMENTS Memory file transfer 1: All messages in the memory (including 0: Disabled confidential RX messages) are sent to the fax 1: Enabled number, which is programmed as the service station. Always reset this bit to zero after transfer.
  • Page 84 30 November, 1999 BIT SWITCHES System Switch 05 FUNCTION COMMENTS 0-1 Not used Do not change these settings. Display of both RTI and CSI 1: Both RTI and CSI will be displayed alternately on the LCD on the LCD. 0: Disabled 1: Enabled 3-7 Not used Do not change these settings.
  • Page 85 BIT SWITCHES 30 November, 1999 System Switch 09 FUNCTION COMMENTS Conditions for printing the This switch becomes effective only when system protocol dump list switch 00 bit 6 is set to 1. 0: Print for all communications 1: Set this bit to 1 when you wish to print a 1: Print only when there is a protocol dump list only for communications with communication error...
  • Page 86 30 November, 1999 BIT SWITCHES System Switch 0C - Not used (do not change any of these settings) System Switch 0D - Not used (do not change any of these settings) System Switch 0E - Not used (do not change any of these settings) System Switch 0F FUNCTION COMMENTS...
  • Page 87 BIT SWITCHES 30 November, 1999 System Switch 12 FUNCTION COMMENTS TTI printing position in the 08 to 92 (BCD) mm. Only input even numbers. main scan direction This setting determines the TTI print start position from the left edge of the paper. If the TTI is too far to the right, the file number, which is on the top right of the page, may obscure it.

  • Page 88: Scanner Switches

    30 November, 1999 BIT SWITCHES 4.2.2 SCANNER SWITCHES Scanner Switch 00 FUNCTION COMMENTS 0-1 Not used Do not change these settings. Maximum transmittable If the user wants to send very long documents document length such as well logs, select the higher setting. Bit 3 Setting 600 mm...

  • Page 89: Printer Switches

    BIT SWITCHES 30 November, 1999 4.2.3 PRINTER SWITCHES Printer Switch 00 FUNCTION COMMENTS 0: No marks printed. Page separation mark 0: Disabled 1: If an incoming fax requires two sheets to print, the machine prints an "x" inside a small box at 1: Enabled the bottom right hand corner of the first sheet.
  • Page 90 30 November, 1999 BIT SWITCHES Printer Switch 03 FUNCTION COMMENTS Reduce the length of received 0: Incoming pages are printed without length data reduction. 0: Disabled Cross-reference 1: Enabled Page separation threshold: Printer Switch. 03, bits 4 to 7. 1: Incoming pages are reduced in the lengthwise direction when printing.
  • Page 91 BIT SWITCHES 30 November, 1999 Printer Switches 04 and 05 FUNCTION COMMENTS Reduction ratios used for different paper sizes (with reduction enabled in switch 03-bit 0 above) If reduction is enabled, the data will be reduced in the lengthwise direction before printing.

  • Page 92: Communication Switches

    30 November, 1999 BIT SWITCHES 4.2.4 COMMUNICATION SWITCHES Communication Switch 00 FUNCTION COMMENTS Compression modes available These bits determine the compression in receive mode capabilities declared in phase B (handshaking) Bit 1 Modes of T.30 protocol. MH only MH/MR MH/MR/MMR Not used Compression modes available These bits determine the compression...
  • Page 93 BIT SWITCHES 30 November, 1999 Communication Switch 02 FUNCTION COMMENTS Burst error threshold If the received page has more consecutive error 0: Low lines than the threshold, the machine sends a negative response. 1: High The low and high threshold values depend on the sub-scan resolution, and are as follows.
  • Page 94 30 November, 1999 BIT SWITCHES Communication Switch 06 FUNCTION COMMENTS Dialing requirements: This function automatically sets these switches Denmark to the required settings for each country after a 0: Disabled 1: Enabled country code (System Switch 0F) is programmed. Dialing requirements: France 0: Disabled 1: Enabled Dialing requirements: Switzerland...
  • Page 95 BIT SWITCHES 30 November, 1999 Communication Switch 0E FUNCTION COMMENTS Minimum interval between 06 to FF (Hex), unit = 2 s automatic dialing attempts (e.g., 06(H) = 12 s) This value is the minimum time that the machine waits before it dials the next destination. Communication Switch 0F - Not used (do not change any of these settings) Communication Switch 10 FUNCTION...
  • Page 96 30 November, 1999 BIT SWITCHES Communication Switch 17 FUNCTION COMMENTS Not used Do not change the settings. SUB reception 0: Confidential reception to another maker’s machine using the SUB (Sub-address) signal is 0: Disabled 1: Enabled disabled. 2-7 Not used Do not change the settings.

  • Page 97: G3 Switches

    BIT SWITCHES 30 November, 1999 4.2.5 G3 SWITCHES G3 Switch 00 FUNCTION COMMENTS (0, 0): The monitor speaker is not in use Monitor speaker during communication (TX and RX) throughout communication. Bit 1 Bit 0 Setting (0, 1): The monitor speaker is on up to phase B Disabled in the T.30 protocol.
  • Page 98 0: Ricoh mode (PPR x 1) slower modem rate after receiving PPR once 1: ITU-T mode (PPR x 4) (Ricoh mode) or four times (ITU-T mode). This bit is ineffective in V.34 communications. Modem rate for the next page 1: The TX modem rate of the machine will fall...
  • Page 99 BIT SWITCHES 30 November, 1999 G3 Switch 05 FUNCTION COMMENTS Initial TX modem rate These bits set the initial starting modem rate for Bit 3 2 1 0 Setting (BPS) transmission. 0 0 0 1 2.4 k 0 0 1 0 4.8 k Use the dedicated transmission parameters if 0 0 1 1 7.2 k you need to change this for specific receivers.
  • Page 100 Bit 7 6 5 4 Setting receiving machine. 0 0 0 1 V.27ter V.33 is an exclusive Ricoh mode (NSF). 0 0 1 0 V.27ter, V.29 0 0 1 1 V.27ter, V.29, V.33 0 1 0 0 V.27ter, V.29,...
  • Page 101 BIT SWITCHES 30 November, 1999 G3 Switch 08 FUNCTION COMMENTS PABX cable equalizer Use a higher setting if there is signal loss at (TX mode) higher frequencies because of the length of wire Bit 1 Bit 0 Setting between the modem and the telephone None exchange.
  • Page 102 30 November, 1999 BIT SWITCHES G3 Switch 0A FUNCTION COMMENTS Maximum allowable carrier These bits set the acceptable modem carrier drop during image data drop time. reception Try using a longer setting if error code 0-22 is Bit 1 Bit 0 Value (ms) frequent.
  • Page 103 BIT SWITCHES 30 November, 1999 G3 Switch 0C FUNCTION COMMENTS Pulse dialing method P = Number of pulses sent out, N = Number Bit 1 Bit 0 Setting dialed. Normal (P=N) Oslo (P=10 - N) Sweden (N+1) Not used Not used Do not change these settings.

  • Page 104: Ncu Parameters

    30 November, 1999 NCU PARAMETERS 4.3 NCU PARAMETERS The following tables give the RAM addresses and the parameter calculation units that the machine uses for ringing signal detection and automatic dialing. The factory settings for each country are also given. The RAM read/write (Function 06) must change most of these, but NCU Parameter programming (Function 08) can change some others;...
  • Page 105 NCU PARAMETERS 30 November, 1999 Address Function Unit Remarks 807F04 PSTN dial tone frequency upper If both addresses contain limit (high byte) (BCD) FF(H), tone detection is disabled. 807F05 PSTN dial tone frequency upper limit (low byte) 807F06 PSTN dial tone frequency lower If both addresses contain limit (high byte) (BCD)
  • Page 106 30 November, 1999 NCU PARAMETERS Address Function Unit Remarks 807F1B PABX dial tone detection time 20 ms If 807F1B contains FF, the machine pauses for the 807F1C PABX dial tone reset time (low) pause time (807F20 / 807F1D PABX dial tone reset time (high) 807F21).
  • Page 107 NCU PARAMETERS 30 November, 1999 Address Function Unit Remarks 807F33 Busy tone signal state time tolerance for all ranges, and number of cycles required for detection (a setting of 4 cycles means that ON-OFF-ON or OFF- ON-OFF must be detected twice). Tolerance (±) Bits 2 and 3 must always be kept at 0.
  • Page 108 30 November, 1999 NCU PARAMETERS Address Function Unit Remarks 807F49 Country dial wait interval (high) 20 ms 807F4A Time between opening or closing 1 ms See Notes 4 and 7. the Ds relay and opening the Di Function 08 (parameter relay 11).
  • Page 109 NCU PARAMETERS 30 November, 1999 Address Function Unit Remarks 807F5E Progress tone detection level, and Bit 7 Bit 6 Bit 5 cadence detection enable flags -25.0 -35.0 -30.0 -40.0 -49.0 Bits 2, 0 - See Note 3. 807F5F Not used Do not change these settings.
  • Page 110 30 November, 1999 NCU PARAMETERS Address Function Unit Remarks 807F82 Bits 0 and 1 - Handset off-hook detection time Setting 200 ms 800 ms Other Not used Bits 2 and 3 - Handset on-hook detection time Setting 200 ms 800 ms Other Not used Bits 4 to 7 - Not used...
  • Page 111 NCU PARAMETERS 30 November, 1999 Address Function Unit Remarks 807FB1 Acceptable AI short protocol tone If both addresses contain (800Hz) detection frequency lower (Hz) FF(H), tone detection is limit (high byte) disabled. 807FB2 Acceptable AI short protocol tone (800Hz) detection upper frequency lower limit (low byte) 807FB3 Detection time for 800 Hz AI short...
  • Page 112 30 November, 1999 NCU PARAMETERS NOTES 1. If a setting is unnecessary, store FF in the address. 2. In, Europe, if the country code is not specified, set it to UK (02). 3. Italy and Belgium only RAM address 807F5E: the lower four bits have the following meaning. Bit 2 1: International dial tone cadence detection enabled (Belgium) Bit 1 Not used Bit 0 1: PSTN dial tone cadence detection enabled (Italy)

  • Page 113: Dedicated Transmission Parameters

    DEDICATED TRANSMISSION PARAMETERS 30 November, 1999 4.4 DEDICATED TRANSMISSION PARAMETERS Each Quick Dial Key and Speed Dial Code has four bytes of programmable parameters allocated to it. If transmissions to a particular machine often experience problems, store that terminal's fax number as a Quick Dial or Speed Dial, and adjust the parameters allocated to that number.

  • Page 114: Parameters

    30 November, 1999 DEDICATED TRANSMISSION PARAMETERS 4.4.2 PARAMETERS The initial settings of the following parameters are all FF(H) - all the parameters are disabled. Byte 0 FUNCTION AND COMMENTS ITU-T T1 time If the connection time to a particular terminal is longer than the NCU parameter setting, adjust this byte.
  • Page 115 DEDICATED TRANSMISSION PARAMETERS 30 November, 1999 Byte 2 FUNCTION COMMENTS If training with a particular remote Initial modem rate terminal always takes too long, the Bit 3 Setting (bps) initial modem rate may be too high. Not used 2,400 Reduce the initial modem rate 4,800 using these bits.

  • Page 116: Service Ram Addresses

    30 November, 1999 SERVICE RAM ADDRESSES 4.5 SERVICE RAM ADDRESSES ø CAUTION Do not change settings marked as “Not used” or “Read only.” 800001 to 800004(H) - ROM version (Read only) 800001(H) - Revision number (BCD) 800002(H) - Year (BCD) 800003(H) - Month (BCD) 800004(H) - Day (BCD) 800005(H) - RAM Reset Level 1...
  • Page 117 SERVICE RAM ADDRESSES 30 November, 1999 8000A2(H) - User parameter switch 02 Bit 0: Forwarding mark printing on forwarded messages 0: Disabled, 1: Enabled Bit 1: Center mark printing on received copies 0: Disabled, 1: Enabled Bit 2: Not used Bit 3: TSI included in transmitted messages 0: Disabled, 1: Enabled Bits 4 to 7: Not used...
  • Page 118 30 November, 1999 SERVICE RAM ADDRESSES 8000A8(H) - User parameter switch 08 Bits 0 and 1: Not used Bits 2 and 3: Authorized reception Setting Disabled Faxes from senders whose RTIs/CSIs are specified for this feature are accepted. Faxes from senders whose RTIs/CSIs are not specified for this feature are accepted.
  • Page 119 SERVICE RAM ADDRESSES 30 November, 1999 8000AD(H) - User parameter switch 13 Bits 0 and 1: PSTN access method from behind PABX Setting PSTN Loop start Ground start (Europe & Asia model only, excluding France models) Flash start (Europe & Asia model only) Bits 2 to 7: Not used 8000B9(H) - User function 62 settings Bit 0: Night timer...
  • Page 120 30 November, 1999 SERVICE RAM ADDRESSES 800141 to 800147(H) - Last power off time (Read only) 800141(H) - Year (BCD) 800142(H) - Month (BCD) 800143(H) - Day (BCD) 800144(H) - Hour 800145(H) - Minute 800146(H) – Second 800147(H) - 00: Monday, 01: Tuesday, 02: Wednesday, .., 06: Sunday 800150 to 800151(H) - Optional equipment (Read only) 800150 Bit 0: Memory card...
  • Page 121 SERVICE RAM ADDRESSES 30 November, 1999 80019A to 80019C(H) - PM call interval: default 60,000 (PM DEFAULT) 80019D to 80019F(H) - Copy counter (COPY) 8001AC to 8001B7(H) - Not used 8001ED to 8001FC(H) - Excessive jam call parameters Address (H) Initial Sys.
  • Page 122 30 November, 1999 SERVICE RAM ADDRESSES 800201 to 80022A(H) - Night timer period (User function 71) 800201 to 800203(H) - Setting #1 for Monday 800204 to 800206(H) - Setting #2 for Monday 800207 to 800209(H) - Setting #1 for Tuesday 80020A to 80020C(H) - Setting #2 for Tuesday 80020D to 80020F(H) - Setting #1 for Wednesday 800210 to 800212(H) - Setting #2 for Wednesday...
  • Page 123 SERVICE RAM ADDRESSES 30 November, 1999 800271 to 800273(H) - Effective term of automatic service calls Parameters Address (H) Year: last two digits of the year (BCD) 800271 Month: 01 through 12 (BCD) 800272 Day: 01 through 31 (BCD) 800273 800274(H) - MODEM version (Read only) 800274(H) - Low (hex) 800275(H) - High (hex)
  • Page 124 30 November, 1999 SERVICE RAM ADDRESSES 8003C7(H) - Details of the service call (hardware error) 0X(H): Fusing unit failure 21(H): Laser power is out of the specified range 3X(H): Polygonal mirror motor failure 5X(H): Power pack failure When a service call was caused by a fusing lamp failure (codes 0X): After fixing the problem, set printer switch 01 bit 0 to 1 and turn the power off/on.
  • Page 125 SERVICE RAM ADDRESSES 30 November, 1999 803856 to 803A67(H) - Latest 10 error communication records One error communication record consists of 53 bytes. The format is as follows: 1st byte - Header Bit 0: Communication result 0: OK, 1: NG Bit 1: Document jam 1: Occurred Bits 2 - 3: Not used...
  • Page 126 30 November, 1999 SERVICE RAM ADDRESSES 15th byte - Final modem rate Bits 0 to 3: Final modem speed                      ...
  • Page 127 SERVICE RAM ADDRESSES 30 November, 1999 37th byte - Communication modes, byte #2 Bit 0: TX or RX 0: TX, 1: RX Bit 1: Reduction in TX 0: Not reduced, 1: Reduced Bit 2: Batch transmission 0: Not used, 1: Used Bit 3: Send later transmission 0: Not used, 1: Used Bit 4: Transmission from...

  • Page 128: Preventive Maintenance

    30 November, 1999 SPECIAL TOOLS AND LUBRICANTS 5. PREVENTIVE MAINTENANCE 5.1 SPECIAL TOOLS AND LUBRICANTS • Flash/SRAM data copy tool (P/N: A1939353 or H5159100) • Flash/SRAM data copy board (P/N: A1939351) 5.2 PM TABLE Scanner / ADF C: Clean, R: Replace Item Notes CIS Glass...

  • Page 129: Replacement And Adjustment

    30 November, 1999 EXTERIOR 6. REPLACEMENT AND ADJUSTMENT ø WARNING The machine contains a laser beam generator. Laser beams can cause permanent eye damage. Do not open the laser unit or look along the laser beam path while the main power is on. ø...

  • Page 130: Operation Panel

    30 November, 1999 6.1.2 OPERATION PANEL H545R515.WMF A: Operation Panel (2 screws, 2 connectors, 1 grounding wire, and 2 hooks) 6.2 ADF 6.2.1 FEED ROLLER ASSEMBLY H545R516.WMF A: ADF Roller Cover (2 hooks) B: Feed Roller Assembly NOTE: If installing a feed belt [C], be sure that the side with the white paint faces the correct direction, as shown.

  • Page 131: Separation Roller

    30 November, 1999 SCANNER 6.2.2 SEPARATION ROLLER H545R517.WMF A: Separation Roller 6.3 SCANNER 6.3.1 SCANNER UNIT DISASSEMBLY H545R518.WMF First, remove the top cover and the operation panel. A: Stopper (1 screw) B: ADF Upper Unit (1 screw with grounding wire)

  • Page 132: Scanner Motor

    SCANNER 30 November, 1999 H545R519.WMF C: Scanner Cover (2 screws, 2 hooks) 6.3.2 SCANNER MOTOR H545R522.WMF First, remove the clamp [E]. A: Scanner Motor Assembly (2 screws) B: FCU Cover (2 screws, PC Interface Cover [D]) C: Scanner Motor (2 screws, 1 connector) NOTE: After replacing the Scanner Motor Assembly, bring the wire mesh cover around harness [F] into contact with bracket [G] using the new clamp [E].

  • Page 133: R1/R2 Rollers

    30 November, 1999 SCANNER 6.3.3 R1/R2 ROLLERS H545R521.WMF A: R1 Roller (2 plastic clips, 2 bushings, 1 gear clipped on the shaft) B: R2 Roller (2 plastic clips, 2 bushings, 1 gear clipped on the shaft) 6.3.4 CONTACT IMAGE SENSOR ASSEMBLY H545R520.WMF A: Contact Image Sensor Assembly (1 connector, 1 screw with grounding wire) ø...

  • Page 134: Scanner Unit

    SCANNER 30 November, 1999 6.3.5 SCANNER UNIT H545R542.WMF First, remove the top cover and the FCU cover (refer to section 6.3.2). A: Scanner Unit (2 hooks, 3 connectors, 1 screw with grounding wire) NOTE: When placing the cables in the clamp [B], put the 2 thin cables underneath the thick cable.

  • Page 135: Laser Printing Components

    30 November, 1999 LASER PRINTING COMPONENTS 6.4 LASER PRINTING COMPONENTS 6.4.1 LASER UNIT You do not need to remove this bracket. H545R527.WMF First, remove the top cover, and then lift the NCU bracket [A] (3 screws). Warning Label (See the next page) H545R523.WMF B: Laser Unit (2 connectors, 1 spring rod)
  • Page 136 LASER PRINTING COMPONENTS 30 November, 1999 ø WARNING Laser beams can cause permanent eye damage. Do not open the laser unit or look along the laser beam path while the main power is on. H545R500.WMF...

  • Page 137: Development

    30 November, 1999 DEVELOPMENT 6.5 DEVELOPMENT 6.5.1 TRANSFER ROLLER H545R525.WMF First, open the scanner unit, then remove the cartridge. A: Transfer Roller (1 gear, 2 clips)

  • Page 138: Fusing

    FUSING 30 November, 1999 6.6 FUSING 6.6.1 FUSING UNIT H545R527.WMF First, remove the top cover. Then remove the FCU cover [A]. H545R526.WMF B: Fusing Unit (2 screws, 2 connectors) 6-10...

  • Page 139: Thermistor

    30 November, 1999 FUSING 6.6.2 THERMISTOR H545R513.WMF A: Thermistor Cover (4 hooks) B: Thermistor (1 screw) 6.6.3 HOT ROLLER STRIPPERS H545R528.WMF A: Hot Roller Strippers (1 spring each) NOTE: Be careful not to lose the springs. 6-11...

  • Page 140: Fusing Lamp And Hot Roller

    FUSING 30 November, 1999 6.6.4 FUSING LAMP AND HOT ROLLER H545R510.WMF A: Fusing Lamp (2 screws) NOTE: When installing a new fusing lamp, be sure that it is installed the correct way around, as shown. ø CAUTION Be careful not to touch the glass surface. H545R509.WMF H545R512.WMF First, remove the bracket [B] and 2 screws [C], then the fusing upper and lower...

  • Page 141: Pressure Roller

    30 November, 1999 FUSING 6.6.5 PRESSURE ROLLER H545R509.WMF A: Bracket (2 screws) NOTE: Fit the projections [C] into the holes [D] when replacing this bracket. B: Pressure Roller 6.6.6 THERMOSTAT AND THERMOFUSE H545R511.WMF A: Thermostat (2 screws) B: Thermofuse (2 screws) – Europe model only 6-13...

  • Page 142: Pcbs

    PCBS 30 November, 1999 6.7 PCBs 6.7.1 NCU H545R529.WMF First, remove the Top Cover. A: NCU (2 screws, 1 connector) 6.7.2 PSU H545R530.WMF First, remove the Top Cover. A: NCU Bracket (2 screws) B: PSU (3 screws, 2 connectors) 6-14...

  • Page 143: Power Pack

    30 November, 1999 PCBS 6.7.3 POWER PACK H545R532.WMF First, remove the PSU. A: Fan Motor (2 screws) B: Fan Duct (2 screws) C: Power Pack (1 screw, 1 screw with grounding wire, 1 connector) 6.7.4 FCU H545R531.WMF After installing the new FCU, transfer the RAM data from the old FCU using service function 12 (refer to section 4.1.24).

  • Page 144: Paper Feed

    PAPER FEED 30 November, 1999 6.8 PAPER FEED 6.8.1 SEPARATION PAD H545R507.WMF A: Separation Pad Assembly H545R508.WMF B: Separation Pad 6-16...

  • Page 145: Paper Feed Unit Assembly And Paper Feed Motor

    30 November, 1999 PAPER FEED 6.8.2 PAPER FEED UNIT ASSEMBLY AND PAPER FEED MOTOR H545R535.WMF If the FCU, PSU and Power Pack were not removed previously, remove them now. (See section 6.7) Then remove the Main Frame [A]. A: Main Frame (4 screws) H545R534.WMF B: Paper Feed Unit Assembly (4 screws) C: Paper Feed Motor (1 short screw with spacer and grounding wire, 1 screw with...

  • Page 146: Paper End Sensor And Registration Sensor

    PAPER FEED 30 November, 1999 6.8.3 PAPER END SENSOR AND REGISTRATION SENSOR H545R533.WMF A: Paper-End-Sensor (1 connector) B: Registration Sensor (1 connector) 6.8.4 PAPER FEED ROLLER/CLUTCH AND TRANSPORT ROLLER H545R536.WMF H545R544.WMF First, remove the Paper Feed Unit Assembly. A: Transport Roller (3 plastic clips, 2 bushes, 2 gears) B: Paper Feed Roller (1 clip, 1 bush, 2 plastic clips) C: Rear Cover Sensor (1 screw) D: Paper Feed Clutch (1 E-ring, 1 connector)

  • Page 147: Others

    30 November, 1999 OTHERS 6.9 OTHERS 6.9.1 INTERLOCK SWITCHES H545R540.WMF First, remove the Top Cover, then remove the FCU (see section 6.7.4). A: Interlock Switch - 24V (1 screw) H545R538.WMF B: Interlock Switch - 5V (1 screw) 6-19...

  • Page 148: Main Motor

    OTHERS 30 November, 1999 6.9.2 MAIN MOTOR H545R537.WMF First, remove the Top Cover, then remove the Laser Unit (see section 6.4.1) and the FCU (see section 6.7.4). A: Stay (1 screw) B: Main Motor (2 screws) NOTE: Do not remove the damper [C], because it is factory adjusted. 6-20...

  • Page 149: Registration Roller

    30 November, 1999 OTHERS 6.9.3 REGISTRATION ROLLER H545R538.WMF First, remove the Main Frame (see section 6.8.1). A: Right Bracket (5 screws, 2 grounding wire) NOTE: When replacing the Right Bracket [A], do not forget to put back the coupled gear [B] and microswitch [C]. H545R539.WMF Remove the Rear Lower Cover, then stand the Main Frame on its side, as shown.

  • Page 150: Toner End Sensor

    OTHERS 30 November, 1999 6.9.4 TONER END SENSOR H545R541.WMF A: Toner End Sensor (1 connector) 6-22...

  • Page 151: Paper Feed Unit (Optional)

    30 November, 1999 PAPER FEED UNIT (OPTIONAL) 6.10 PAPER FEED UNIT (OPTIONAL) 6.10.1 TRANSPORT ROLLER H545R502.WMF A: Transport Roller (3 plastic clips, 2 bushings, 1 gear) 6.10.2 PAPER FEED ROLLER AND PAPER FEED CLUTCH H545R501.WMF First, remove the mainframe, then remove the Right Cover [A]. B: Paper Feed Roller (2 plastic clips, 2 bushings) C: Paper Feed Clutch (1 connector) NOTE: Make sure that the paper feed roller shaft rotates clockwise when viewed...

  • Page 152: Connector

    PAPER FEED UNIT (OPTIONAL) 30 November, 1999 6.10.3 CONNECTOR H545R503.WMF A: Connector (2 clips) NOTE: When installing the connector [A], the side with the small hole must face the outside of the machine. 6-24...

  • Page 153: Image Adjustment

    30 November, 1999 IMAGE ADJUSTMENT 6.11 IMAGE ADJUSTMENT 6.11.1 OVERVIEW H545R650.WMF This section explains how to adjust the scanning and printing parameters. Among these are the margin parameters shown in the diagram below, which are named in accordance with the following table. Parameters Description Adjustable by...

  • Page 154: Scanner Parameters

    IMAGE ADJUSTMENT 30 November, 1999 6.11.2 SCANNER PARAMETERS 1. Contrast Text Mode Halftone Mode Address Initial Setting Address Initial Setting 800622 Auto 80061E 0F(H) 0C(H) (Copy and Fax) 800624 Normal 800620 0F(H) 0C(H) (PC scan) 800625 Lighten 800621 13(H) 0E(H) (PC scan) 800623 Darken...

  • Page 155: Printer Parameters

    30 November, 1999 IMAGE ADJUSTMENT Initial Parameter Formula Unit Address Setting Not adjustable This parameter changes the number of 8002B8(H) 9B(H) scanner motor steps after the scan line (low) [155(D)] sensor is activated. 8002B9(H) To increase the margin by x mm: (high) New setting = Current setting + 7.7x To decrease the margin by x mm:...
  • Page 156 IMAGE ADJUSTMENT 30 November, 1999 2. Margins (Sub Scan Direction) Initial Parameter Formula Unit Address Setting Standard 0.46 0B(H) cassette: 80035F(H) Optional 0B(H) paper feed unit: 800360(H) Optional 0B(H) multi purpose feeder: 800364(H) H545R562.WMF To increase the margin by x mm: New setting = Current setting + x/0.46 To decrease the margin by x mm: New setting = Current setting - x/0.46...

  • Page 157: Scanner Video Processing Parameters

    30 November, 1999 IMAGE ADJUSTMENT 6.11.4 SCANNER VIDEO PROCESSING PARAMETERS The tables in the following pages show the video processing parameter settings for each scanning mode. One byte of parameters is assigned for each mode (text or halftone), and they all have the same definitions as follows: MTF / Edge detection / Edge enhancement Bit No.
  • Page 158 IMAGE ADJUSTMENT 30 November, 1999 MTF algorithm Bit No. FUNCTION COMMENTS Not used MTF algorithm The ”high” setting enhances the thickness of Bit 6 5 Setting thin lines and dots more than the “low” setting, 0 0 High on main however it also makes dust more obvious.

  • Page 159: Troubleshooting

    30 November, 1999 COPY QUALITY TROUBLESHOOTING 7. TROUBLESHOOTING 7.1 COPY QUALITY TROUBLESHOOTING If there is a copy quality problem that cannot be solved easily, try using the following troubleshooting procedures, while referring to the point-to-point diagram. The procedures may not be exhaustive, but they may help you to find the problem. Make a copy Is the print image Print a test pattern...

  • Page 160: Blank Copies

    COPY QUALITY TROUBLESHOOTING 30 November, 1999 7.1.1 BLANK COPIES Possible Cause (Printer) • Poor drum sensitivity. • Laser optic components are out of position. • The proper bias voltages are not applied to the toner application roller and/or the development roller. •...

  • Page 161: Dirty Background

    30 November, 1999 COPY QUALITY TROUBLESHOOTING 7.1.3 DIRTY BACKGROUND H545T502.WMF H545T503.WMF Possible Cause (Scanner) • Scanner shading correction error or incorrect threshold. Action: 1. Clean the shading white roller. 2. Adjust the scanner contrast threshold settings. Possible Cause (Printer) • Poor drum sensitivity. •...

  • Page 162: Uneven Image Density

    COPY QUALITY TROUBLESHOOTING 30 November, 1999 7.1.4 UNEVEN IMAGE DENSITY H545T504.WMF H545T503.WMF Possible Cause (Scanner) • Dirty exposure glass • Partial scanner lamp defect Action • Clean the exposure glass of the image sensor. • Replace the image sensor. Possible Cause (Printer) •...

  • Page 163: Vertical Black Lines

    30 November, 1999 COPY QUALITY TROUBLESHOOTING 7.1.5 VERTICAL BLACK LINES H545T505.WMF H545T503.WMF Possible Cause (Scanner) • Defective contact image sensor element(s). • Dirt or dust on the exposure glass. • Dirty white roller in the ADF. Action: 1. Clean the exposure glass and the shading white roller. 2.

  • Page 164: Horizontal Black Lines

    COPY QUALITY TROUBLESHOOTING 30 November, 1999 7.1.6 HORIZONTAL BLACK LINES H545T506.WMF H545T507.WMF Possible Cause (Printer) • The drum surface is scratched or damaged. Action: 1. Check to see if the surface of the drum is damaged. • Change the cartridge if damaged.

  • Page 165: Vertical White Lines

    30 November, 1999 COPY QUALITY TROUBLESHOOTING 7.1.7 VERTICAL WHITE LINES H545T508.WMF H545T503.WMF Possible Cause (Scanner) • Defective image sensor element(s). Action: • Replace the image sensor. Possible Cause (Printer) • The laser optic components are dirty. • The hot roller stripper scrapes off toner from the print paper. •...

  • Page 166: Horizontal White Lines

    COPY QUALITY TROUBLESHOOTING 30 November, 1999 7.1.8 HORIZONTAL WHITE LINES H545T509.WMF H545T511.WMF Possible Cause (Printer) • A damaged or deformed development roller surface. • The development bias is unstable. • The transfer current is unstable. Action: 1. Print a test pattern, and open the cover in the middle of printing. 2.

  • Page 167: Black Dots/Spots

    30 November, 1999 COPY QUALITY TROUBLESHOOTING 7.1.9 BLACK DOTS/SPOTS H545T510.WMF Possible Cause (Scanner) • Dust on the exposure glass. Action: • Clean the exposure glass. • Try disabling MTF. Possible Cause (Printer) • The drum surface is damaged (this is likely if the dots appear at 75.4 mm intervals).

  • Page 168: White Spots In Black Image Areas

    COPY QUALITY TROUBLESHOOTING 30 November, 1999 7.1.10 WHITE SPOTS IN BLACK IMAGE AREAS H545T501.WMF Possible Cause (Printer) • The drum surface is damaged (this is likely if the dots appear at 75.4 mm intervals). • The development roller surface is damaged (this is likely if the dots appear at 36.7 mm intervals).

  • Page 169: Faint Copies

    30 November, 1999 COPY QUALITY TROUBLESHOOTING 7.1.11 FAINT COPIES H545T504.WMF H545T512.WMF Possible Causes (Scanner) • Dirty shading plate and/or exposure glass • Incorrect scan threshold • Contact image sensor (LED, sensor element) defect Action: • Clean the white roller in the ADF. •...
  • Page 170 COPY QUALITY TROUBLESHOOTING 30 November, 1999 Action: 1. Print a test pattern, and open the cover in the middle of printing. 2. Check to see if the toner on the paper at the entrance of the fusing unit appears faint. •...

  • Page 171: Vertical Black Band

    30 November, 1999 COPY QUALITY TROUBLESHOOTING 7.1.12 VERTICAL BLACK BAND H545T505.WMF H545T512.WMF Possible Cause (Printer) • A deformed, damaged, or incorrectly positioned toner metering blade. Action: • Replace the cartridge. 7-13...

  • Page 172: Unfused Copies

    COPY QUALITY TROUBLESHOOTING 30 November, 1999 7.1.13 UNFUSED COPIES Possible Cause (Printer) • The thermistor is defective. • The spring mechanism for the fusing pressure roller is defective. • Incorrect toner type. • Non-recommended paper type. Action: 1. Check to see if the correct type of paper and toner are in use. •...

  • Page 173: Toner On The Back Of The Printer Paper

    30 November, 1999 COPY QUALITY TROUBLESHOOTING 7.1.15 TONER ON THE BACK OF THE PRINTER PAPER Possible Cause (Printer) • Dirty transfer roller • Dirty fusing pressure roller Action: 1. Check to see if the transfer roller is dirty with toner. •...

  • Page 174: Incorrectly Aligned Output (Image Shifted Vertically)/Reduced Image

    COPY QUALITY TROUBLESHOOTING 30 November, 1999 7.1.17 INCORRECTLY ALIGNED OUTPUT (IMAGE SHIFTED VERTICALLY)/REDUCED IMAGE Possible Cause: • Improper print margin (sub-scan direction). • Dirty registration roller. Action: • Adjust the sub-scan print margin. (Refer to Section 6-12.) • Clean the registration roller. 7-16...

  • Page 175: Mechanical Problems

    30 November, 1999 MECHANICAL PROBLEMS 7.2 MECHANICAL PROBLEMS 7.2.1 ADF/SCANNER 1. Non Feed Possible Cause: • Use of the incorrect document type or size. • The operation panel is not closed properly. • The pick-up rollers and feed belt are dirty or worn out. •...
  • Page 176 MECHANICAL PROBLEMS 30 November, 1999 2. Jam Possible Cause: • Incorrect document type or size. • The document is too long. • The scanner rollers (pick-up, feed, R1, and R2 rollers) are dirty. • Obstruction in the document paper path. •...
  • Page 177 30 November, 1999 MECHANICAL PROBLEMS 3. Skew Possible Cause: • Incorrect document type or size. • The document guide is set incorrectly. • The operation panel is not closed properly. • The scanner rollers (pick-up, feed, R1, and R2 rollers) are dirty. •...

  • Page 178: Printer

    MECHANICAL PROBLEMS 30 November, 1999 7.2.2 PRINTER 1. Non-feed Possible Cause: • Use of a non-recommended paper type. • The paper cassette end fence is set incorrectly. • The paper lift mechanism is not working properly. • Malfunction in the paper feed clutch. •...
  • Page 179 30 November, 1999 MECHANICAL PROBLEMS 2. Paper Jam - Inside Printer Possible Cause: • Using a non-recommended type of paper. • The paper end fence and/or the paper guides in the cassette are set incorrectly. • The registration roller is dirty. •...
  • Page 180 MECHANICAL PROBLEMS 30 November, 1999 3. Jam - Fusing Exit Possible Cause: • Use of a non-recommended type of paper. • Obstruction in the paper path. • The registration sensor is defective. • Malfunction in the fusing drive mechanism. • The paper feed-out sensor is defective. •...
  • Page 181 30 November, 1999 MECHANICAL PROBLEMS 4. Skew Possible Cause: • Use of a non-recommended type of paper. • Incorrect positioning of the paper guides in the paper cassette. • The separation pad is out of position. • The paper feed roller is worn out or damaged. •...

  • Page 182: Service Call Conditions

    SERVICE CALL CONDITIONS 30 November, 1999 7.3 SERVICE CALL CONDITIONS If the Call Service indicator is lit, one of the following conditions has occurred: Error Sub- Symptom Code code code Laser diode failure 9-20 2-21 Fusing unit failure (fusing lamp at high 9-22 0-01 temperature during printing)
  • Page 183 30 November, 1999 SERVICE CALL CONDITIONS To find out which problem has occurred, either: • See the Auto Service Call report sent to the service station by the machine. This report lists a sub-code, as well as the error message; this sub-code may help you find the problem.

  • Page 184: Error Codes

    ERROR CODES 30 November, 1999 7.4 ERROR CODES If an error code occurs, re-send the fax or have the end user send a fax back to you as the problem dictates. If the same problem occurs, try to fix the problem as suggested below.
  • Page 185 30 November, 1999 ERROR CODES Code Meaning Suggested Cause/Action 0-06 The other terminal did not Check the line connection. reply to DCS Check the FCU - NCU connectors. Try adjusting the TX level and/or cable equalizer settings. Replace the NCU or FCU. The other end may be defective or incompatible;...
  • Page 186 ERROR CODES 30 November, 1999 Code Meaning Suggested Cause/Action 0-20 Facsimile data not Check the line connection. received within Check the FCU - NCU connectors. 6 seconds of retraining Replace the NCU or FCU. Check for line problems. Try calling another fax machine. Try adjusting the reconstruction time for the first line and/or RX cable equalizer setting.
  • Page 187 30 November, 1999 ERROR CODES Code Meaning Suggested Cause/Action 0-30 The other terminal did not Check the line connection. reply to NSS(A) in AI short Check the FCU - NCU connectors. protocol mode Try adjusting the TX level and/or cable equalizer settings.
  • Page 188 ERROR CODES 30 November, 1999 Code Meaning Suggested Cause/Action 0-80 The time out in V.34 phase The guard timer expired while starting these 2 (line probing) phases. Serious noise, narrow bandwidth, or disconnected the line. low signal level can cause these errors. If these errors happen at the transmitting 0-81 Line was disconnected due...
  • Page 189 30 November, 1999 ERROR CODES Code Meaning Suggested Cause/Action 1-10 Paper at the scan line Remove the document. when the power was Check the scan line sensor. turned on. Cross-reference ADF mechanical problems - Section 7-2-1 1-17 Document jam in the feed- Clear any debris from the sensor actuator.
  • Page 190 ERROR CODES 30 November, 1999 Code Meaning Suggested Cause/Action 5-23 Print data error when Ask the other end to re-send the message. printing a substitute RX or Replace the FCU or IC memory card. confidential RX message 5-24 Memory overflow after the Try using a lower resolution setting.
  • Page 191 30 November, 1999 ERROR CODES Code Meaning Suggested Cause/Action 6-11 G3 ECM - printing Check for problems in the printer mechanism. impossible because of a missing first line in the MMR coding 6-21 V.21 flag detected during The other terminal may be defective or high speed modem incompatible.

  • Page 192: Electrical Component Defects

    ELECTRICAL COMPONENT DEFECTS 30 November, 1999 7.5 ELECTRICAL COMPONENT DEFECTS 7.5.1 DEFECTIVE SENSOR TABLE Sensor Status Symptoms if Defective Document sensor The LCD displays "CLEAR ORIGINAL" or "DIAL FAX NO" at power-up. The LCD still displays "SET DOC. OR DIAL NO."...

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