Ricoh infotec 3671F Service Manual
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Ricoh infotec 3671F Service Manual

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FX7
RICOH FAX1700L
SERVICE MANUAL
July 30th, 1996
Subject to change

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Summary of Contents for Ricoh infotec 3671F

  • Page 1 RICOH FAX1700L SERVICE MANUAL July 30th, 1996 Subject to change...
  • Page 2 infotec 3671/3671F SERVICE MANUAL July 30th, 1996 Subject to change...
  • Page 3 WARNING 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) CAUTION The danger of explosion exists if a battery of this type is incorrectly replaced.

  • Page 4: Overall Machine Information

    July 24th, 1996 OVERALL MACHINE INFORMATION SPECIFICATIONS 1. OVERALL MACHINE INFORMATION Modulation 1.1. SPECIFICATIONS V.17 (TCM), V.29 (QAM), V.27ter (PHM), Type V.21 (FM) Desktop type transceiver Data Rate (bps) Circuit 14400/12000/9600/7200/4800/2400 PSTN, PABX Automatic fallback Connection Transmission Time Direct couple 6 s at 14,400 bps;...
  • Page 5 OVERALL MACHINE INFORMATION July 24th, 1996 FEATURES 1.2. FEATURES Communication Features - User Selectable KEY: O = Used, X = Not Used, Auto-answer delay time A = With optional memory only, Auto dialing (pulse or DTMF) B = With optional paper feed unit only Auto Document C = With optional handset only Auto image density selection...
  • Page 6 July 24th, 1996 OVERALL MACHINE INFORMATION FEATURES Communication Features - Other User Features User Selectable Confidential ID Secured Polling with Stored ID Copy editing (Erase Center/Mar- Override gin) Secure Transmission Copy mode Send Later Copy Mode Restriction Silent ringing detection Counters Specified Image Area Daylight Saving Time...
  • Page 7 OVERALL MACHINE INFORMATION July 24th, 1996 FEATURES Reports - Automatic Service Mode Features Charge Control Report File Transfer Communication Failure Report LCD contrast adjustment Confidential File Report Line error mark Error Report Memory file printout (all files) Memory Storage Report Modem test Mode Change Report NCU parameters...

  • Page 8: Component Layout

    July 24th, 1996 OVERALL MACHINE INFORMATION COMPONENT LAYOUT 1.3. COMPONENT LAYOUT H528V501.wmf 1.3.1. Mechanical Components Name Description Document Pick-up Roller Picks up the top sheet of the document from the document table. Scanner Roller Feeds the document through the scanner. Laser Unit Consists of the LDDR (Laser Diode Driver), focusing lens, Fθ...
  • Page 9 OVERALL MACHINE INFORMATION July 24th, 1996 COMPONENT LAYOUT Name Description Fusing Fan Cools the interior of the machine. Transfer Roller Applies a charge to the paper to pull the toner off the drum and onto the paper. Charge Brush Roller Applies a charge to the drum.

  • Page 10: Electrical Components

    July 24th, 1996 OVERALL MACHINE INFORMATION COMPONENT LAYOUT 1.3.2. Electrical Components H528V504.wmf H528V503.wmf...
  • Page 11 OVERALL MACHINE INFORMATION July 24th, 1996 COMPONENT LAYOUT 1. PCBs Name Description MCB (Mechacincal Controls the printer part of the machine. Control Board) FCU (Facsimile Control Controls the machine. Unit) NCU (Network Control Contains a relay and switches to interface the machine Unit) to the network and the handset.
  • Page 12 July 24th, 1996 OVERALL MACHINE INFORMATION COMPONENT LAYOUT 3. Sensors Name Description Thermostat Cuts off the ac power supply to the fusing lamp if the surface temperature exceeds 180°C. Thermistor Is used to monitor the hot roller surface temparature. Toner End Sensor Is used to detect the toner end condition.

  • Page 13: Overall Machine Control

    OVERALL MACHINE INFORMATION July 24th, 1996 OVERALL MACHINE CONTROL 1.4. OVERALL MACHINE CONTROL TRXD To the Network Operation FCIP Serial Panel /STS OP-LSI AVIDEO /SOD Scanner Components Optional Printer Paper Feed Components Unit H528D501.wmf The FCU controls the entire system of the machine. The printer components and the optional paper feed unit are controlled by the MCB.

  • Page 14: Video Data Path

    July 24th, 1996 OVERALL MACHINE INFORMATION VIDEO DATA PATH 1.5. VIDEO DATA PATH 1.5.1. Transmission Original Contact Image Sensor Assembly Image Sensor LED Array CIS Video Amplifier Video FCIP Processing R144EFXL Memory Modem DATA/ADDRESS BUS DRAM Line Attenuator SAF IC Buffer ECM/SAF Card...
  • Page 15 OVERALL MACHINE INFORMATION July 24th, 1996 VIDEO DATA PATH 1.5.2. Reception From the Network Amplifier E144EFXL FCIP Modem DATA/ADDRESS BUS DRAM Line Buffer ECM/SAF Page /FIFO Memory Memory Memory LDDR LIF: Laser Interface DCR:Data Compression & Copy Paper Reconstruction H528v508.wmf MDM: Modem Data from the line passes to the modem through the NCU and hybrid IC.
  • Page 16 July 24th, 1996 OVERALL MACHINE INFORMATION VIDEO DATA PATH 1.5.3. Copying Original Contact Image Sensor Assembly Image Sensor LED Array CIS Video Amplifer Video Processing FCIP Memory Memory IC Card DATA/ADDRESS BUS DRAM Line Buffer ECM/SAF Page /FIFO Memory Memory Memory LDDR LIF: Laser Interface...

  • Page 17: Power Distribution

    OVERALL MACHINE INFORMATION July 24th, 1996 POWER DISTRIBUTION 1.6. POWER DISTRIBUTION 1.6.1. Distribution Diagram +5VD +12VD IC Card +24V(SW) LDDR +5VE Option Panel +24V(SW) Square +24V Mirror Motor +5VE Document Toner End +24V(SW) Pick-up Sensor Solenoid +5VE +24V(SW) +24V(SW) Tx Motor Fusing Fan +5VD Paper...

  • Page 18: Detailed Section Descriptions

    July 30th, 1996 DETAILED SECTION DESCRIPTIONS SCANNER 2. DETAILED SECTION DESCRIPTIONS 2.1. SCANNER 2.1.1. Mechanisms 1. Document Detection H528D511.wmf H528D510.wmf The document sensor [A] detects when a document is placed in the ADF. The fold-out extension [B] helps support longer documents. 2.
  • Page 19 DETAILED SECTION DESCRIPTIONS July 30th, 1996 SCANNER 3. Drive Mechanism H528D512.wmf The document is fed into the scanner by the scanner roller [A], and fed out by the exit roller [B]. The tx motor [C] drives the scanner roller and the exit roller. The document exit sensor detects when the document leaves the scanner.
  • Page 20 July 30th, 1996 DETAILED SECTION DESCRIPTIONS SCANNER 4. Image Scanning H528D515.wmf The scanner consists of a contact image sensor (CIS) assembly [A] and a scanner roller [B]. Inside the CIS are an exposure glass [C], a rod lens array [D], an image sensor [E], and an LED array [F]. The image sensor consists of a row of 1728 photosensitive elements (216 mm width x 8 dots/mm).
  • Page 21 DETAILED SECTION DESCRIPTIONS July 30th, 1996 SCANNER Standard resolution (Scanning to memory) • 3.85 line/mm resolution. • One line is read each motor step. • Scan speed: 2.75 s /A4 size. • The tx motor rotates at 800 pps to scan the document into the memory. •...
  • Page 22 July 30th, 1996 DETAILED SECTION DESCRIPTIONS SCANNER 2.1.2. Scanner Timing Chart 1. Timing Chart START EXIT 38 Steps Pre-feeding 2.05 S 800PP TX Motor 400PP CIS LED Document Pick-up Solenoid 500ms [T1] Scan Line Sensor [L1] 187 Steps Data Read [L3] 37 Steps [L2]...

  • Page 23: Jam Conditions

    DETAILED SECTION DESCRIPTIONS July 30th, 1996 SCANNER 2. Jam Conditions The main cpu detects a document jam if one of the following conditions oc- curs. Jam Condition Description Error Code The scan line sensor does not switch on within 3.9 s [T1] of the tx motor starting. Non-feed 1-00 The jam condition is reset when the document,...
  • Page 24 DETAILED SECTION DESCRIPTIONS June 30th, 1996 PRINTING 2.2. PRINTING 2.2.1. Printing Process - Overview H528D545.wmf This machine uses a "write to black" system, using negative toner. • The charge brush roller applies a negative charge to the drum of -350 V to -1350 V, switched at 30 Hz.
  • Page 25 July 30th, 1996 DETAILED SECTION DESCRIPTIONS PRINTING 2.2.2. OPC Drum H528D506.wmf This machine uses an organic photoconductor drum [A]. The diameter of the drum is 30 mm. It is driven by the main motor [B] through a gear train [C]. The charge brush roller [D] is also driven by the main motor.
  • Page 26 DETAILED SECTION DESCRIPTIONS June 30th, 1996 PRINTING 2.2.4. Laser Exposure 1. Overview H528D505.wmf The components of the laser section create a latent image on the drum. The charge on the exposed areas of the drum drops to about -50 V while non-exposed areas remain at about -800 V.
  • Page 27 July 30th, 1996 DETAILED SECTION DESCRIPTIONS PRINTING Mirror Motor Failure: The machine detects a mirror motor error when the MCB does not detect the line synchronization detector signal within 1 second of the mirror motor being turned on. The machine also detects a mirror motor error when the motor rotation is not within 8431.7 rpm ±...
  • Page 28 DETAILED SECTION DESCRIPTIONS June 30th, 1996 PRINTING 2.2.5. Development 1. Overview H528D508.wmf H528D507.wmf This machine contains a development toner magazine (DTM) [A], which contains the toner agitator [B], development roller [C], toner supply roller [D], doctor blade [E], and the toner tank [F]. At toner end, the entire DTM is replaced by the user.
  • Page 29 July 30th, 1996 DETAILED SECTION DESCRIPTIONS PRINTING 2. Development Bias H528D516.wmf The high voltage power supply [A] applies different voltages to the components of the DTM. The applied voltages are: • Development roller: -280 V [B] (depending on the user’s print density selection) •...
  • Page 30 DETAILED SECTION DESCRIPTIONS June 30th, 1996 PRINTING 3. Toner End Detection The toner end sensor [A] (a reflective photosensor) is located under the DTM. When the toner is almost empty, the sensor’s light is reflected by the mirror [B] at the top of the toner tank.
  • Page 31 July 30th, 1996 DETAILED SECTION DESCRIPTIONS PRINTING 2. Paper Feed Mechanism (Standard Tray) H528D524.wmf H528D522.wmf [A]: Main motor Paper Feed Sequence When the paper pick-up solenoid [B] is turned on, the motor rotation is transferred to the paper pick-up roller [C] by the spring clutch [D].
  • Page 32 DETAILED SECTION DESCRIPTIONS June 30th, 1996 PRINTING 3. Paper Feed Mechanism (Optional Feed Unit) Paper Feed Sequence H528D523.wmf H528D525.wmf The paper feed sequence for the optional paper feed unit (PFU) is the same as the standard tray except for the following: •...
  • Page 33 July 30th, 1996 DETAILED SECTION DESCRIPTIONS PRINTING 2.2.7. Transfer 1. Transfer and Separation H528D518.wmf A transfer bias of +3.2 kV is applied to the transfer roller [A] from the high voltage supply [B]. This charge is applied through the torsion spring [C] and the conductive supporter [D].
  • Page 34 DETAILED SECTION DESCRIPTIONS June 30th, 1996 PRINTING 2. Cleaning Mode If the paper is smaller than the printed image, or if a paper jam occurs during printing, toner may be transferred to the the transfer roller surface. To prevent toner from transferring to the back side of copies, the transfer roller has to be cleaned before the next printing run.
  • Page 35 July 30th, 1996 DETAILED SECTION DESCRIPTIONS PRINTING 2.2.8. Fusing 1. Fusing Temperature Control C: Thermostat H528D519.wmf The power supplied to the lamp [A] is controlled by the MCB. The MCB uses the thermistor [B] to determine when to turn the fusing lamp on and off. When the main switch is turned on, the machine turns on the fusing lamp and raises the fusing temperature to 181°...
  • Page 36 DETAILED SECTION DESCRIPTIONS June 30th, 1996 PRINTING - User Setting: Fusing Lamp Off - 5 min 3 min 1 min 181°C 176°C 161°C 100°C Room Temp Low temp Warming up Printing Idle Energy Star Mode mode H528D546.wmf After printing, the fusing lamp temperature drops to 161° C. Then, the fusing lamp temperature will fall back to room temperature after 1 or 3 minutes, depending on the system bit switch setting.
  • Page 37 July 30th, 1996 DETAILED SECTION DESCRIPTIONS PRINTING 3. Fusing Unit Drive H528D520.wmf The main motor [A] drives the fusing unit through a gear train. The paper exit sensor [B] detects when the paper is fed out of the unit. Jam Detection: Paper Exit The exit sensor detects a jam if it does not turn on between 3.5 and 4.5 seconds after the registration sensor is turned on.
  • Page 38 DETAILED SECTION DESCRIPTIONS June 30th, 1996 PRINTING 4. Fusing Unit Service Call Conditions The machine warns the customer on the LCD panel (SC code 0-02) when any of the following conditions occur (error code 9-22). • When the fusing temperature is below 90° C and does not increase at least 20°...
  • Page 39 July 30th, 1996 DETAILED SECTION DESCRIPTIONS PRINTING 2.2.9. 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 bit switches 03, 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 paper.
  • Page 40 DETAILED SECTION DESCRIPTIONS June 30th, 1996 PRINTING Reduction Disabled If bit 0 of printer switch 03 is at 0 (Disabled), the data will not be reduced. However, if the incoming page is up to x mm longer than the copy paper, the excess portion will not printed.

  • Page 41: System Features

    DETAILED SECTION DESCRIPTIONS July 30th, 1996 SYSTEM FEATURES 2.3. SYSTEM FEATURES 2.3.1. Power Saver Modes 1. Going into a Power Saver Mode - Power Saver Timer - When the power saver timer expires, the machine automatically goes into a Power Saver Mode. During the power saver mode, the fusing lamp is turned off or on according to the User Switch 05, bit 6 setting.
  • Page 42 July 30th, 1996 DETAILED SECTION DESCRIPTIONS SYSTEM FEATURES 2.3.2. Automatic Service Calls 1. Service Call Conditions The machine makes an automatic service call when one of the following con- ditions occurs. Sub-code Service Call Conditions Error Code 8002F9(H) Laser diode failure 9-20 Fusing lamp failure 9-22...
  • Page 43 DETAILED SECTION DESCRIPTIONS July 30th, 1996 SYSTEM FEATURES 2. Excessive Jam Alarms CALL Threshold (=6) Decrement Reset to Decrement zero NO-JAM1 DEC Threshold (=16) 16 pages fed without jam 16 pages fed without jam 16 pages fed without jam NO-JAM2 CLR Threshold (=48) 48 pages fed without jam H516D535.wmf...
  • Page 44 July 30th, 1996 DETAILED SECTION DESCRIPTIONS SYSTEM FEATURES Address (H) Initial Sys. Para. Parameters Settings List Printer DEC (1 - 255; 0 = Disabled) 8001E6 8001EA 10 (H) CALL (3 - 15; 0 = Disabled) 8001E7 8001EB 06 (H) (Low) 8001E8 8001EC 30 (H)
  • Page 45 DETAILED SECTION DESCRIPTIONS July 30th, 1996 SYSTEM FEATURES 4. PM Call If PM call is enabled, the machine will make an automatic service call when the PM counter reaches the PM threshold. Program the PM call interval at the following RAM addresses. (Default setting: 30,000 sheets) Address (H) Bits 7 - 4...
  • Page 46 July 30th, 1996 DETAILED SECTION DESCRIPTIONS PCBs 2.4. PCBs 2.4.1. FCU DRAM (Optional) Working ECM/SAF Page IC Card Operation Memory Memory System System Panel Video SRAM (Flash) (SRAM) OP-LSI DATA/ADDRESS BUS R144EFXL Scanner Modem Sensor Control Signals Tx Motor Speaker FCIP Document Drivers...

  • Page 47: Fcip (Facsimile Controller And Image Processor)

    DETAILED SECTION DESCRIPTIONS July 30th, 1996 PCBs 1. FCIP (Facsimile Controller and Image Processor) • CPU (RU8 - Main CPU) • Modem (V.21, DTMF, and Tone generator) • Data compression and reconstruction (DCR) • Digital image processor (DIP) • Laser interface (LIF) •...
  • Page 48 July 30th, 1996 DETAILED SECTION DESCRIPTIONS PCBs 8. FPD (Facsimile Power Driver) • Stepper motor driver 9. HIC (Hybrid IC) • 2-4 wire switching • Filters and amplifiers • Monitor speaker driver 10. CIS Video Amplifer • Level control for the video signal from the CIS 11.
  • Page 49 DETAILED SECTION DESCRIPTIONS July 30th, 1996 PCBs 2.4.2. PSU Main Switch +12V Primary Surge Noise Smoothing Regulator Protection Filter Switching Circuit Inlet Circuit Board AC Input Interlock SW +24VSW +24V 5V Monitor Chopper Circuit Control Output Circuit Detection Fusing Lamp Output PC Anode Phase Control...
  • Page 50 July 30th, 1996 DETAILED SECTION DESCRIPTIONS PCBs 2.4.3. NCU (USA) OHDISW TRXD Current RING Sensor OHDISW Hook0 Hook1 Ex Ring Ring Detect RITONE Relay Ext. Tel DP/Off- Ex TDI Hook Detection CMLSW H528d533.wmf 1. Jumpers Item Description These jumpers should be shorted when the machine is connected to a dry line.

  • Page 51: Control Signals And Jumpers

    DETAILED SECTION DESCRIPTIONS July 30th, 1996 PCBs 2.4.4. NCU (Europe/Asia) RITONE SHUNT CML Relay Filter (16Hz) DO Sw. RING TRXD Current Sensor Loop Closure Circuit OHDI Sw. JP24 DOSW OHDISW GS Sw. CMLSW Hook0 Hook1 SHUNT GSSW CSEL0 Ring CSEL1 Detection RSEL Circuit...

  • Page 52: Installation

    July 30th, 1996 INSTALLATION INSTALLING THE MACHINE 3. INSTALLATION 3.1. INSTALLING THE MACHINE Refer to the Operator’s Manual for the installation environment and how to in- stall and set up the machine. Refer to section 2.4.4. for how to set up the NCU hardware in each country. 3.2.

  • Page 53: Service Tables And Procedures

    July 30th, 1996 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4. SERVICE TABLES AND PROCEDURES 4.1. SERVICE LEVEL FUNCTIONS In this section, frequently used keys are referred to with the following symbols. - Start key - Stop key - Function key - Yes key - No key >...
  • Page 54 SERVICE TABLES AND PROCEDURES July 30th, 1996 SERVICE LEVEL FUNCTIONS 4.1.2. System Parameter List (Function 02) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 3. Finish: 4.1.3. Error Code Display (Function 03) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately ERROR CODE < > 1-01 JAN 01 17:30 3.
  • Page 55 July 30th, 1996 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.5. Protocol Dump (Function 05) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately START PROTOCOL DUMP 4. Finish: 4.1.6. RAM Display/Rewrite (Function 06) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-MEM.R/W 1-MEM.DUMP ADDRESS = 000000 DATA = 00 4.
  • Page 56 SERVICE TABLES AND PROCEDURES July 30th, 1996 SERVICE LEVEL FUNCTIONS 6. Either: • View more addresses - go to step 4. • Finish - 4.1.7. RAM Dump (Function 06) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-MEM.R/W 1-MEM.DUMP MEMORY DUMP START/N ADD.000000 - 0000FF 4.
  • Page 57 July 30th, 1996 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 3. Either: Check the transmitted, received, 012345 scanned and printed page counters, and 012345 the printer and scanner jam counters - press (To see the scanned and printed SCAN 012345 PRINT 012345 page counters, press...

  • Page 58: Function

    SERVICE TABLES AND PROCEDURES July 30th, 1996 SERVICE LEVEL FUNCTIONS 4. Scroll through the parameters using KPAD/<> NO.04 = 005 . If you want to change a value, enter the new value at the keypad, then press Example: Set NCU parameter 04 to 005. 5.
  • Page 59 July 30th, 1996 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.11. DTMF Tone Test (Function 08) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-NCU 1-MODEM 2-DTMF 3-DETECT DTMF TEST START/<> TONE 4. Scroll through the available tests using 6. To stop the test: 7.

  • Page 60: Operation Panel Test (Function 09)

    SERVICE TABLES AND PROCEDURES July 30th, 1996 SERVICE LEVEL FUNCTIONS 4.1.13. Operation Panel Test (Function 09) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-LED/LCD 5. To stop the test, press 6. To finish: 4.1.14. LED Array Test (Function 10) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-LAMP...
  • Page 61 July 30th, 1996 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.15. ADF Test (Function 10) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-LAMP 1-ADF 2-SHADING START 4. Place a document in the feeder, then press 5. To stop the test, press 6.

  • Page 62: Printer Test Patterns (Function 11)

    SERVICE TABLES AND PROCEDURES July 30th, 1996 SERVICE LEVEL FUNCTIONS 4.1.17. Printer Test Patterns (Function 11) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-PATTERN 1-MECH PATTERN PRINT KPAD 5. Press a key from 6. Press A test pattern is printed. 7. To finish: 4.1.18.
  • Page 63 July 30th, 1996 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.19. RAM Tests (Function 12) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-SRAM 1-SAF 2-SAFCARD 3-M-->R 3. Either: Test the SRAM: Press Test the SAF: Press Test the SAF card: Press If test is successful, the display shows "OK".
  • Page 64 SERVICE TABLES AND PROCEDURES July 30th, 1996 SERVICE LEVEL FUNCTIONS 4.1.20. Software Download (Function 12) Instead of replacing an EPROM to update the machine’s software, use this procedure to update the software in the machine’s Flash ROM. This function copies software from an external medium to the Flash ROM on the machine’s FCU.
  • Page 65 July 30th, 1996 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS If the software is successfully downloaded, the display shows "OK". OK!! COPY MACH <- FLROM If the software download fails, the display shows "NG". NG!! COPY MACH <- FLROM 8. To finish, press 9.
  • Page 66 SERVICE TABLES AND PROCEDURES July 30th, 1996 SERVICE LEVEL FUNCTIONS OK!! COPY MACH -> FLROM If the software is successfully uploaded, the display shows "OK". If the software upload fails, the display NG!! shows "NG". COPY MACH -> FLROM 7. Finish : 8.
  • Page 67 SERIAL # KPAD 3. Enter the machine’s serial number at the SERIAL # KPAD/Y/N keypad. RICOH 1234567 To correct a mistake: 4. If the display is correct: 5. Finish: 4.1.24. Service Station Fax Number (Function 13) FUNCTION KPAD/NEXT...

  • Page 68: Bit Switches

    SERVICE TABLES AND PROCEDURES July 30th, 1996 BIT SWITCHES 4.2. BIT SWITCHES WARNING Do not adjust a bit switch that is described as "Not used", as this may cause the machine to malfunction or to operate in a manner that is not accepted by local regulations.
  • Page 69 July 30th, 1996 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 00 FUNCTION COMMENTS Technical data printout on 1: Instead of the personal code, the following data are TCR (Journal) listed on the TCR for each analog G3 communication. 0: Disabled e.g.

  • Page 70: Communication Parameters

    SERVICE TABLES AND PROCEDURES July 30th, 1996 BIT SWITCHES Communication Parameters Mode DCS: ITU-T standard NSS: Non-standard G3 Modem rate 144: 14400 bps 120: 12000 bps 96: 9600 bps 72: 7200 bps 48: 4800 bps 24: 2400 bps Communication ECM: With ECM SSC: Using SSC mode EFC: Using EFC NML: With no ECM, SSC, or EFC Compression...
  • Page 71 July 30th, 1996 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 02 FUNCTION COMMENTS Memory file transfer 1: All messages in the memory are sent to the fax 0: Disabled number which is programmed as the service station. 1: Enabled Always reset this bit to zero after transfer.
  • Page 72 SERVICE TABLES AND PROCEDURES July 30th, 1996 BIT SWITCHES System Switch 04 FUNCTION COMMENTS LCD contrast Use these bit switches to adjust the contrast of the Contrast LCD on the operation panel. Brightest ↓ ↓ ↓ ↓ Darkest Dedicated transmission This bit must be set to 1 before changing any parameter programming dedicated transmission parameters.
  • Page 73 July 30th, 1996 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 05 FUNCTION COMMENTS 0-1 Not used Do not change the settings. Display of both RTI and CSI 1: Both RTI and CSI will be displayed alternately on on the LCD the LCD.
  • Page 74 SERVICE TABLES AND PROCEDURES July 30th, 1996 BIT SWITCHES System Switch 0A FUNCTION COMMENTS 0-3 Not used Do not change the settings. Dialing on the ten-key pad 1: The user can dial on the machine’s ten-key pad when the handset is off-hook when the handset is off-hook.
  • Page 75 July 30th, 1996 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 0F FUNCTION COMMENTS Country code for functional settings This country code determines the factory (Hex) settings of bit switches and RAM addresses. However, it has no effect on the NCU 00: France 10: Not used parameter settings and communication...
  • Page 76 SERVICE TABLES AND PROCEDURES July 30th, 1996 BIT SWITCHES System Switch 13 - Not used (do not change the settings) System Switch 14 - Not used (do not change the settings) System Switch 15 - Not used (do not change the settings) System Switch 16 - Not used (do not change the settings) System Switch 17 - Not used (do not change the settings) System Switch 18 - Not used (do not change the settings)
  • Page 77 July 30th, 1996 SERVICE TABLES AND PROCEDURES BIT SWITCHES 4.2.2. Scanner Switches Scanner Switch 00 FUNCTION COMMENTS Not used Do not change the settings. Not used Do not change the settings. Maximum transmittable If the user wants to send very long documents such as document length well logs, select a higher setting.
  • Page 78 SERVICE TABLES AND PROCEDURES July 30th, 1996 BIT SWITCHES Scanner Switch 06 - Not used (do not change the settings) Scanner Switch 07 - Not used (do not change the settings) Scanner Switch 08 - Not used (do not change the settings) Scanner Switch 09 - Not used (do not change the settings) Scanner Switch 0A - Not used (do not change the settings) Scanner Switch 0B - Not used (do not change the settings)
  • Page 79 July 30th, 1996 SERVICE TABLES AND PROCEDURES BIT SWITCHES 4.2.3. Printer Switches Printer Switch 00 FUNCTION COMMENTS Page separation mark 0: No marks are printed. 0: Disabled 1: If a received page has to be printed out on two 1: Enabled sheets, an "x"...
  • Page 80 SERVICE TABLES AND PROCEDURES July 30th, 1996 BIT SWITCHES Printer Switch 03 FUNCTION COMMENTS Page separation threshold (with reduction disabled in switch 03-0 above) If the incoming page is up to x mm longer than the copy paper, the excess portion will not be printed.
  • Page 81 July 30th, 1996 SERVICE TABLES AND PROCEDURES BIT SWITCHES Printer Switch 06 - Not used (do not change the settings) Printer Switch 07 - Not used (do not change the settings) Printer Switch 08 - Not used (do not change the settings) Printer Switch 09 - Not used (do not change the settings) Printer Switch 0A - Not used (do not change the settings) Printer Switch 0B - Not used (do not change the settings)

  • Page 82: Communication Switches

    SERVICE TABLES AND PROCEDURES July 30th, 1996 BIT SWITCHES 4.2.4. Communication Switches Communication Switch 00 FUNCTION COMMENTS Compression modes These bits determine the compression capabilities to available in receive mode be declared in phase B (handshaking) of the T.30 Bit 1 Modes protocol.
  • Page 83 July 30th, 1996 SERVICE TABLES AND PROCEDURES BIT SWITCHES Communication Switch 02 FUNCTION COMMENTS Burst error threshold If there are more consecutive error lines in the 0: Low 1: High received page than the threshold, the machine will send a negative response. The Low and High threshold values depend on the sub-scan resolution, and are as follows.
  • Page 84 SERVICE TABLES AND PROCEDURES July 30th, 1996 BIT SWITCHES Communication Switch 06 FUNCTION COMMENTS Dialing requirements: These switches are automatically set to the settings Germany required by each country after a country code (System 0: Disabled 1: Enabled Switch 0F) is programmed. Dialing requirements: Austria 0: Disabled 1: Enabled Dialing requirements:...
  • Page 85 July 30th, 1996 SERVICE TABLES AND PROCEDURES BIT SWITCHES Communication Switch 0D FUNCTION COMMENTS The amount of remaining 00 to FF (Hex), unit = 2 kbytes memory below which (e.g., 0C(H) = 24 kbytes) ringing detection (and One page is about 24 kbytes. therefore reception into If this setting is kept at 0, the machine will detect memory) is disabled...
  • Page 86 SERVICE TABLES AND PROCEDURES July 30th, 1996 BIT SWITCHES Communication Switch 13 FUNCTION COMMENTS Immediate transmission: 00 - FF (Hex) minutes Interval between dialing attempts to the same destination Communication Switch 14 - Not used (do not change the settings) Communication Switch 15 - Not used (do not change the settings) Communication Switch 16 - Not used (do not change the settings) Communication Switch 17 - Not used (do not change the settings)
  • Page 87 July 30th, 1996 SERVICE TABLES AND PROCEDURES BIT SWITCHES 4.2.5. G3 Switches G3 Switch 00 FUNCTION COMMENTS Monitor speaker during (0, 0): The monitor speaker is disabled all through the communication (tx and rx) communication. Bit 1 Bit 0 Setting (0, 1): The monitor speaker is on up to phase B in the Disabled T.30 protocol.
  • Page 88 CTC transmission conditions When using ECM, the machine will choose a slower 0: Ricoh mode (PPR x 1) modem rate after receiving PPR once (Ricoh mode) or 1: ITU-T mode (PPR x 4) four times (ITU-T mode). ITU-T: New acronym for the CCITT.
  • Page 89 July 30th, 1996 SERVICE TABLES AND PROCEDURES BIT SWITCHES G3 Switch 05 FUNCTION COMMENTS Initial Tx modem rate These bits set the initial starting modem Bit 3 2 1 0 Setting (bps) rate for transmission. 0 0 0 1 2.4k 0 0 1 0 4.8k Use the dedicatated transmssion 0 0 1 1 7.2k...
  • Page 90 SERVICE TABLES AND PROCEDURES July 30th, 1996 BIT SWITCHES G3 Switch 07 FUNCTION COMMENTS PSTN cable equalizer Use a higher setting if there is signal loss at higher (tx mode) frequencies because of the length of wire between the Bit 1 Bit 0 Setting modem and the telephone exchange.
  • Page 91 July 30th, 1996 SERVICE TABLES AND PROCEDURES BIT SWITCHES G3 Switch 0B FUNCTION COMMENTS Protocol requirements: Program these bit switches manually to match local Europe requirements. 0: Disabled 1: Enabled Protocol requirements: Spain 0: Disabled 1: Enabled Protocol requirements: Germany 0: Disabled 1: Enabled Protocol requirements: France...

  • Page 92: Ncu Parameters

    SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS 4.3. NCU PARAMETERS The following tables give the RAM addresses and units of calculation of the parameters that the machine uses for ringing signal detection and automatic dialing. The factory settings for each country are also given. Most of these must be changed by RAM read/write (Function 06), but some can be changed using NCU Parameter programming (Function 08);...
  • Page 93 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks PSTN dial tone frequency range Hz (BCD) See Note 2. 807F04 (high byte) PSTN dial tone frequency range 807F05 (low byte) 807F06 Not used Do not change the factory setting.
  • Page 94 SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Address Function Unit Remarks PABX ringback tone detection time 20 ms Detection is disabled if this 807F22 contains FF. PABX ringback tone off detection 20 ms 807F23 time PABX detection time for silent 20 ms 807F24 period after ringback tone...
  • Page 95 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks International dial tone detection 20 ms If 807F38 contains FF, the 807F38 time machine pauses for the pause time (807F3D / International dial tone reset time 807F39 807F3E).
  • Page 96 SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Address Function Unit Remarks Tone attenuation value in DTMF -dBm x Function 08 (parameter 19). 807F52 signals See Note 6. Tone attenuation value difference -Nx0.5 Function 08 (parameter 20). between high frequency tone and (dB) See Note 6.
  • Page 97 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks Acceptable ringing signal 1000/ N Function 08 (parameter 02). 807F72 frequency: range 1, upper limit (Hz). Acceptable ringing signal Function 08 (parameter 03). 807F73 frequency: range 1, lower limit Acceptable ringing signal Function 08 (parameter 04).
  • Page 98 SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Address Function Unit Remarks 807FA6 Not used Do not change the factory setting. 807FA7 807FA8 807FA9 CNG detection time 20 ms Factory setting: 200 ms 807FAA ± 20 ms CNG on time 20 ms Factory setting: 500 ms 807FAB...
  • Page 99 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Notes 1. If a setting is not required, store FF in the address. 2. Tone frequencies are stored as look-up tables in hex code. For each pa- rameter, there is a look-up table for each country that uses it. The tables are given following this page.
  • Page 100 SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Tone Detection Frequency Ranges - PSTN Dial Tone (807F04 - 807F05) - France Germany Italy RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 415 - 465 400 - 480 030 (Default) 410 - 440 410 - 470...
  • Page 101 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Switzerland Portugal Holland RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 385 - 560 315 - 440 290 - 580 380 - 565 305 - 450 280 - 585 370 - 570 0B0 (Default) 295 - 455...
  • Page 102 SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Sweden Switzerland Australia RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) FFFF Tone not 380 - 465 385 - 560 (Default) detected 375 - 470 380 - 565 405 - 445 365 - 475 370 - 570...
  • Page 103 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS - PSTN Busy Tone (807F13 - 807F14) France Germany U. K. RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 415 - 465 400 - 480 330 - 470 410 - 470 390 - 485 320 - 460...
  • Page 104 SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Sweden Switzerland Holland RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 030 (Default) 410 - 440 385 - 560 335 - 540 400 - 450 380 - 565 325 - 545 395 - 455 370 - 570...
  • Page 105 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS - PABX Busy Tone (807F26 - 807F27) Italy Denmark Switzerland, Israel RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 030 (Default) 410 - 440 405 - 445 385 - 560 400 - 450 415 - 455...

  • Page 106: Default Settings

    SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Default Settings The factory settings are quoted either in hexadecimal code (the actual con- tents of the RAM address) if there is a H after the value in the table, or in decimal (converted from the actual hex contents of the RAM address) if there is no H after the value.
  • Page 107 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F06 807F07 807F08 807F09 807F0A France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F0B 807F0C...
  • Page 108 SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Country 807F10 807F11 807F12 807F13 807F14 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F15 807F16...
  • Page 109 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F1C 807F1D 807F1E 807F1F 807F20 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F21 807F22...
  • Page 110 SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Country 807F26 807F27 807F28 807F29 807F2A France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F2B 807F2C...
  • Page 111 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F30 807F31 807F32 807F33 807F34 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F35 807F36...
  • Page 112 SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Country 807F3A 807F3B 807F3C 807F3D 807F3E France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F3F 807F40...
  • Page 113 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F44 807F45 807F46 807F47 807F48 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F49 807F4A...
  • Page 114 SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Country 807F4E 807F4F 807F50 807F51 807F52 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F53 807F54...
  • Page 115 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807F5C 807F5D 807F5E 807F5F 807F65 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F66 807F72...
  • Page 116 SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Country 807F76 807F77 807F78 807F79 807F7A France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807F81 807F82...
  • Page 117 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807FA4 807FA5 807FA6 807FA7 807FA8 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807FA9 807FAA...
  • Page 118 SERVICE TABLES AND PROCEDURES July 30th, 1996 NCU PARAMETERS Country 807FAE 807FAF 807FB1 807FB2 807FB3 France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia Country 807FB4 807FB5...
  • Page 119 July 30th, 1996 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Country 807FB9 807FBD 807FDA France Germany Italy Austria Belgium Denmark Finland Ireland Norway Sweden Switzerland Portugal Holland Spain Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia 4-67...

  • Page 120: Dedicated Transmission Parameters

    SERVICE TABLES AND PROCEDURES July 30th, 1996 DEDICATED TRANSMISSION PARAMETERS 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 expe- rience problems, store that terminal’s fax number as a Quick Dial or Speed Dial, and adjust the parameters allocated to that number.
  • Page 121 July 30th, 1996 SERVICE TABLES AND PROCEDURES DEDICATED TRANSMISSION PARAMETERS 4.4.2. Parameters The initial settings of the following parameters are all FF(H) - all the parame- ters are disabled. Byte 0 FUNCTION AND COMMENTS CCITT T1 time If the connection time to a particular terminal is longer than the NCU parameter setting, adjust this byte.
  • Page 122 SERVICE TABLES AND PROCEDURES July 30th, 1996 DEDICATED TRANSMISSION PARAMETERS Byte 2 FUNCTION COMMENTS Initial Tx modem rate If training with a particular remote Bit 3 Setting (bps) terminal always takes too long, the Not used initial modem rate may be too high. 2,400 Reduce the initial Tx modem rate 4,800...

  • Page 123: Service Ram Addresses

    July 30th, 1996 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 4.5. SERVICE RAM ADDRESSES CAUTION Do not change the settings which are marked as “Not used” or “Read only.” 800000(H) - RAM Reset Level 1 Change the data at this address to 00 (H), then switch the machine off and on to reset all the system settings.
  • Page 124 SERVICE TABLES AND PROCEDURES July 30th, 1996 SERVICE RAM ADDRESSES 8000A3(H) - User parameter switch 03 (Automatic report printout) Bit 0: Transmission result report (memory transmissions) 0: Off, 1: On Bit 1: Not used Bit 2: Memory storage report 0: Off, 1: On Bit 3: Not used Bit 4: Polling result report (polling reception) 0: Off, 1: On...
  • Page 125 July 30th, 1996 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 8000AD(H) - User parameter switch 13 Bits 0 and 1: PSTN access method from behind a PABX Setting PSTN Loop start Ground start (not available in France) Flash start 8000AE - 8000AF(H) - User parameter 14 to 15 Not used 8000B8(H) - User function 62 settings Bits 0 to 3: Not used...
  • Page 126 SERVICE TABLES AND PROCEDURES July 30th, 1996 SERVICE RAM ADDRESSES 800140 to 800146(H) - Last power off time (Read only) 800140(H) - Year (BCD) 800141(H) - Month (BCD) 800142(H) - Day (BCD) 800143(H) - 00: Monday, 01: Tuesday, 02: Wednesday, .., 06: Sunday 800144(H) - Hour 800145(H) - Minute 800146(H) - Second...
  • Page 127 July 30th, 1996 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 8001EE to 8001F0(H) - OPC (master drum) replacement interval (default: 20,000 prints) The machine asks the user to replace the drum at this interval, if bit 5 of system switch 04 is 8001F9 to 800223(H) - Night timer period (User function 71) 8001F1 to 8001F3(H) - Setting #1 for Monday 8001F4 to 8001F6(H) - Setting #2 for Monday...
  • Page 128 SERVICE TABLES AND PROCEDURES July 30th, 1996 SERVICE RAM ADDRESSES 8002DC(H) - Fusing unit failure When a service call was caused by a fusing unit failure (code 02) When a fusing error occurs, the contents of this RAM are changed to 02. After fixing the prob- lem, reset the data at this address to 00(H), then restart the machine to clear the service call.
  • Page 129 July 30th, 1996 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 800340 to 800347 (H) - Scanner Video Processing Parameters Bit no. Mode Resolution The functions of each bit are Address described below this table. Standard 800340(H) (Memory tx) Standard Text 800341(H) (Immediate tx) Detail...
  • Page 130 SERVICE TABLES AND PROCEDURES July 30th, 1996 SERVICE RAM ADDRESSES 802A54 to 802C65(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...
  • Page 131 July 30th, 1996 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 16th byte to 35th byte - Remote terminal’s ID (RTI, TSI or CSI) (ASCII) 36th byte - Communication mode #1 Bits 0 - 1: Resolution used    =   : Standard , ...

  • Page 132: Preventive Maintenance

    July 30th, 1996 PREVENTIVE MAINTENANCE SPECIAL TOOLS AND LUBRICANTS 5. PREVENTIVE MAINTENANCE 5.1. SPECIAL TOOLS AND LUBRICANTS • Flash/SRAM data copy tool (P/N: A1939353) • Flash/SRAM data copy board (P/N: H5159500) • Image Sensor Shading Chart (P/N: H0689300) 5.2. PM TABLE Scanner Item Notes...

  • Page 133: Replacement And Adjustment

    July 30th, 1996 REPLACEMENT AND ADJUSTMENT COVERS 6. REPLACEMENT AND ADJUSTMENT 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. CAUTION Before starting disassembly, be sure to print all message files in the SAF memory.
  • Page 134 REPLACEMENT AND ADJUSTMENT July 30th, 1996 COVERS 6.1.2. Shield Covers Remove the Right Cover (see Left and Right Covers). A: Right Shield Cover (4 screws, 2 hooks) B: Rear Shield Cover (2 screws, 1 hook) h528r502.wmf C: Upper Right Cover (3 screws) 6.1.3.
  • Page 135 July 30th, 1996 REPLACEMENT AND ADJUSTMENT COVERS 6.1.4. Operation Panel Assembly Remove the Upper Right Cover (see Shield Covers). h528r505.wmf A: Operation Panel Assembly (2 screws, 1 tapping screw with ground wire, 1 connector, 2 hooks)
  • Page 136 REPLACEMENT AND ADJUSTMENT July 30th, 1996 SCANNER 6.2. SCANNER 6.2.1. Scanner Unit Remove the following: Left and Right Covers (see Left and Right Covers) Right Shield Cover and Upper Right Cover (see Shield Covers) Operation Panel Assembly (see Operation Panel Assembly) FCU (see FCU and Mechanical Control Board) h528r508.wmf A: Scanner Unit (4 tapping screws, 1 screw with ground wire)
  • Page 137 July 30th, 1996 REPLACEMENT AND ADJUSTMENT SCANNER 6.2.2. Contact Image Sensor Remove the Operation Panel (see Operation Panel Assembly). h528r509.wmf Unhook the left [A] and right pins of the scanner upper cover. B: Contact Image Sensor Assembly (1 screw with ground wire, 1 connector, 2 hooks) Contact Image Sensor (3 screws, 1 screw with ground wire) After replacing the image sensor, do the shading initialization by service func-...
  • Page 138 REPLACEMENT AND ADJUSTMENT July 30th, 1996 SCANNER 6.2.3. Tx Motor and Document Feed Solenoid Remove the following: Left Cover and Right Cover (see Left and Right Covers) Upper Right Cover and Right Shield Cover (see Shield Covers) Front Cover (see Front Cover) h528r510.wmf A: Tx Motor (2 screws, 2 wire clamps, 1 connector on the FCU) B: Document Feed Solenoid (1 tapping screw, 2 wire clamps, 1 connector on...
  • Page 139 July 30th, 1996 REPLACEMENT AND ADJUSTMENT SCANNER 6.2.4. Document Pick-up Roller Remove the scanner upper cover (see Contact Image Sensor). h528r511.wmf A: Ground Plate (1 tapping screw) B: Scanner Right Inner Cover (1 hook, 1 pin) C: Document Pick-up Roller Assembly (2 E-rings, 1 gear, 1 coil spring, 1 spring cover, 1 plastic cam, 1 pin, 2 bushings, 2 hooks) Note: Be careful not to break the hooks [D] when removing the document pick-up roller assembly.
  • Page 140 REPLACEMENT AND ADJUSTMENT July 30th, 1996 SCANNER 6.2.5. Document Exit Roller Remove the Scanner Unit (see Scanner Unit). h528r513.wmf h528r514.wmf A: Mounting Plate (4 tapping screws) B: Tx Motor Assembly (3 tapping screw, 1 screw) C: Exit Roller Drive Gear D: Document Exit Roller (see the next page)
  • Page 141 July 30th, 1996 REPLACEMENT AND ADJUSTMENT SCANNER h528r515.wmf 6.2.6. Document Sensor Board h528r512.wmf A: Speaker Mount Bracket (1 screw, 1 screw with ground wire, 1 connector) B: Document Sensor Board (3 tapping screws, 1 connector)
  • Page 142 REPLACEMENT AND ADJUSTMENT July 30th, 1996 SCANNER 6.2.7. Document Exit Feeler, Document Raising Plate, and Lower Docu- ment Feed Guide Assembly Unhook the scanner upper cover, and remove the document sensor board (see Document Sensor Board) and the document exit roller (see Document Exit Roller).
  • Page 143 July 30th, 1996 REPLACEMENT AND ADJUSTMENT SCANNER 6.2.8. Platen Roller, Document Set Feeler, and Registration Feeler Remove the lower document feed guide assembly (see Document Exit Feeler, Document Raising Plate, and Lower Document Feed Guide Assem- bly). h528r517.wmf A: Platen Roller (1 clipped gear, 2 bushings) B: Document Set Feeler (2 hooks) C: Registration Feeler (2 hooks) Note: Be careful not to break the hooks.
  • Page 144 REPLACEMENT AND ADJUSTMENT July 30th, 1996 SCANNER 6.2.9. Friction Pad Remove the document feed roller (see Document Feed Roller). h528r518.wmf A: Friction Pad (2 hooks) Note: Be careful not to break the hooks. 6-12...

  • Page 145: Function

    July 30th, 1996 REPLACEMENT AND ADJUSTMENT PRINTER 6.3. PRINTER 6.3.1. FCU and Mechanical Control Board Remove the Right Cover (see Left and Right Covers) and Right Shield Cover (see Shield Covers). h528r503.wmf A: FCU (4 screws, 10 connectors on the face, 1 connector on the back) B: Mechanical Control Board (1 screw, 1 stud, 11 connectors) After replacing the FCU, do the shading initialization by service function 10-2.
  • Page 146 REPLACEMENT AND ADJUSTMENT July 30th, 1996 PRINTER 6.3.2. NCU and 5V PSU Board Remove the Right Cover (see Left and Right Covers), Right Shield Cover (see Shield Covers), and FCU (see FCU and Mechanical Control Board). h528r504.wmf A: NCU (4 screws, 2 connectors) B: 5V PSU Board (2 screws, 1 stud, 1 connector) 6.3.3.
  • Page 147 July 30th, 1996 REPLACEMENT AND ADJUSTMENT PRINTER 6.3.4. Optical Unit Remove the scanner unit (see Scanner Unit), the FCU (see FCU and Me- chanical Control Board), and the left cover (see Left and Right Covers). H528r519.wmf A: Speaker Bracket (1 screw) B: Optical Unit Upper Cover (2 hooks) C: Optical Unit (7 screws, 2 hooks, 1 cable clamp) WARNING...
  • Page 148 REPLACEMENT AND ADJUSTMENT July 30th, 1996 PRINTER 6.3.5. Transfer Unit h528r520.wmf A: Cable Cover 1 (1 screw, 4 hooks) B: Transfer Unit (2 screws, 2 connectors) 6.3.6. Fusing Unit Fan Remove the Transfer Unit h528r543.wmf A: Harness Cover (2 hooks) B: Fusing Unit Fan Cover (1 screw, 2 hooks) C: Fusing Unit Fan (2 hooks) 6-16...
  • Page 149 July 30th, 1996 REPLACEMENT AND ADJUSTMENT PRINTER 6.3.7. Top Cover Assembly h528r521.wmf Remove cable cover 1 (see Transfer Unit). A: Cable Cover 2 (1 screw) B: Top Cover Assembly (2 pins, 1 harness clamp, 4 connectors) 6.3.8. Fusing Cover Gears h528r522.wmf To remove components in the fusing section, remove the top cover assembly first (see Top Cover Assembly).
  • Page 150 REPLACEMENT AND ADJUSTMENT July 30th, 1996 PRINTER 6.3.9. Fusing Cover and Harness Cover h521r523.wmf Remove the gear cover (see Fusing Cover Gears). A: Fusing Cover (4 screws) B: Harness Cover (2 hooks) 6.3.10. Fusing Lamp Remove the fusing cover (see Fusing Cover and Harness Cover). h528r524.wmf A: Fusing Lamp (2 terminals) 6-18...
  • Page 151 July 30th, 1996 REPLACEMENT AND ADJUSTMENT PRINTER 6.3.11. Fusing Unit A: Fusing Unit (3 screws, 1 screw with ground plate, 1 connector, entrance guide) h528r525.wmf Remove the fusing cover (see Fusing Cover and Harness Cover) and the transfer unit (see Transfer Unit). 6.3.12.
  • Page 152 REPLACEMENT AND ADJUSTMENT July 30th, 1996 PRINTER 6.3.13. Pressure Roller and Hot Roller h528r527.wmf A: Pressure Roller (2 springs, 2 bushings) B: Hot Roller (2 G-rings, 1 gear, 2 bushings) 6.3.14. Exit Roller and PCB-R Remove the fusing unit (see Fusing Unit). h528r529.wmf A: Exit Roller (2 bushings, 1 gear) B: PCB-R (2 screws with ground plate)
  • Page 153 July 30th, 1996 REPLACEMENT AND ADJUSTMENT PRINTER 6.3.15. PSU Remove the transfer unit (see Transfer Unit). h528r528.wmf A: Bracket (2 screws with washer, 3 screws, 1 screw with ground plate) B: PSU (4 screws, 1 connector, 1 harness clamp) 6-21...
  • Page 154 REPLACEMENT AND ADJUSTMENT July 30th, 1996 PRINTER 6.3.16. High Voltage Power Supply, Toner End Sensor, and Paper End Sensor h528r530.wmf A: Bottom Cover (1 screw, 1 hook) B: High Voltage Power Supply (3 tapping screws with terminals, 1 screw with cable, 2 connectors) C: Toner End Sensor (3 hooks) D: Paper End Sensor (2 hooks)

  • Page 155: Paper Feed Section

    July 30th, 1996 REPLACEMENT AND ADJUSTMENT PAPER FEED SECTION 6.4. PAPER FEED SECTION To disassemble the feed section, turn the machine upside down and ap- proach it from the bottom. h528r531.wmf 6.4.1. Bottom Plate Assembly and Paper Lifting Plate h528r532.wmf A: Bottom Plate Assembly (4 screws) B: Paper Raising Plate (2 pins) 6-23...
  • Page 156 REPLACEMENT AND ADJUSTMENT July 30th, 1996 PAPER FEED SECTION 6.4.2. Paper Pick-up Solenoid, Registration Sensor, Paper Feed Roller, and Paper Separation Pad To remove these components, remove 3 screws then turn the paper feed guide assembly [A] upside down as shown in the diagram. h528r533.wmf h528r535.wmf B: Paper Separation Pad (2 hooks)
  • Page 157 July 30th, 1996 REPLACEMENT AND ADJUSTMENT PAPER FEED SECTION 6.4.3. Paper Pick-up Roller Remove the following: • Left cover (see Left and Right Covers) • Bottom plate assembly and paper lifting plate (see Bottom Plate Assem- bly and Paper Lifting Plate) •...
  • Page 158 REPLACEMENT AND ADJUSTMENT July 30th, 1996 2ND PAPER FEED UNIT 6.5. 2ND PAPER FEED UNIT 6.5.1. Upper Guard, and Left and Right Covers h528r537.wmf A: Upper Guard (3 hooks) B: Left Cover (2 screws, 2 pins) C: Right Cover (2 screws, 2 pins) 6-26...
  • Page 159 July 30th, 1996 REPLACEMENT AND ADJUSTMENT 2ND PAPER FEED UNIT 6.5.2. Paper Pick-up Roller and Paper Pick-up Solenoid h528r539.wmf A: Paper Pick-up Assembly (5 screws, 1 connector) h528r544.wmf B: Feed Gear Assembly (1 screw, 1 screw with upper left feed guide [C]) D: Pick-up Roller (1 E-ring, 1 bushing, 1 pin) Note: Be careful not to drop the pin when removing the pick-up roller.

  • Page 160: Image Adjustment

    REPLACEMENT AND ADJUSTMENT July 30th, 1996 IMAGE ADJUSTMENT 6.6. IMAGE ADJUSTMENT 6.6.1. Overview H528R540.wmf This section explains how to adjust various scanning and printing parameters. Among these are the margin parameters shown in the diagram below, which are named in accordance with the table below the diagram. Adjustable by Parameters Description...

  • Page 161: Scanner Parameters

    July 30th, 1996 REPLACEMENT AND ADJUSTMENT IMAGE ADJUSTMENT 6.6.2. Scanner Parameters 1. Contrast Text Mode Halftone Mode Bit Switch Initial Setting Bit Switch Initial Setting Normal Scanner 02 09(H) Scanner 05 07(H) 2. Margins Parameter Initial Formula Unit Address Setting W1, W2 Not adjustable H528R541.wmf...
  • Page 162 REPLACEMENT AND ADJUSTMENT July 30th, 1996 IMAGE ADJUSTMENT 6.6.3. Printer Parameters 1. Margins (Main Scan Direction) Initial Parameter Formula Unit Address Setting H528R542.wmf Standard paper tray 05(H) 8002C0(H) 0.5 mm Optional paper feed 05(H) 8002C1(H) 1. Fax and Copy Mode To increase the margin by x mm: New setting = Current setting + 0.5x To decrease the margin by x mm:...
  • Page 163 July 30th, 1996 REPLACEMENT AND ADJUSTMENT IMAGE ADJUSTMENT 2. Margins (Sub Scan Direction) Initial Parameter Formula Unit Address Setting H528R541.wmf Standard paper tray 06(H) 8002B4(H) 0.45 Optional paper feed 06(H) 8002B5(H) To increase the margin by x mm: New setting = Current setting + 0.45x To decrease the margin by x mm: New setting = Current setting - 0.45x Not adjustable...

  • Page 164: Copy Quality Troubleshooting

    July 30th, 1996 TROUBLESHOOTING 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 dia- gram. The procedures may not be exhaustive, but they may help you to find the problem.
  • Page 165 TROUBLESHOOTING July 30th, 1996 COPY QUALITY TROUBLESHOOTING 7.1.1. Blank Copies Possible Cause (Printer): • The DTM is not installed. • Poor drum sensitivity. • Laser optic components are out of position. • The proper bias is not applied to the development roller. •...
  • Page 166 July 30th, 1996 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 7.1.2. Black Copies Possible Cause (Scanner) • The contact image sensor is defective. Action: 1. Check the connection between the FCU (CN5) and the contact image sensor. 2. Replace the contact image sensor. Possible Cause (Printer) •...
  • Page 167 TROUBLESHOOTING July 30th, 1996 COPY QUALITY TROUBLESHOOTING 7.1.3. Dirty or Dark Background Possible Cause (Scanner) • Scanner shading correction error or wrong threshold. Action: 1. Do the image sensor initialization with service function 10 (Shading Test). (Refer to section 4-1.) 2.
  • Page 168 July 30th, 1996 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 7.1.4. Uneven Image Density Across the Main Scan Possible Cause (Scanner) • Dirty exposure glass • Partial scanner lamp defect • Scanner shading correction error or wrong threshold. Action • Clean the exposure glass of the image sensor. •...
  • Page 169 TROUBLESHOOTING July 30th, 1996 COPY QUALITY TROUBLESHOOTING 7.1.5. Vertical Black Lines Possible Cause (Scanner) • Defective contact image sensor element(s). • Dirt or dust on the exposure glass. Action: 1. Clean the exposure glass. 2. Replace the contact image sensor. Possible Cause (Printer) •...
  • Page 170 July 30th, 1996 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 7.1.7. Vertical White Lines Possible Cause (Scanner) • Defective image sensor element(s). Action: • Replace the image sensor. Possible Cause (Printer) • The laser optic components are dirty. Action: • Clean the laser optic components. 7.1.8.
  • Page 171 TROUBLESHOOTING July 30th, 1996 COPY QUALITY TROUBLESHOOTING 7.1.9. Black Dots/Spots H516T502.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 94.2 mm intervals).
  • Page 172 July 30th, 1996 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 7.1.10. White Spots in Black Image Areas H516T501.wmf Possible Cause (Printer) • The drum surface is damaged (this is likely if the dots appear at 94.2 mm intervals). • The development roller surface is damaged (this is likely if the dots ap- pear at 51.8 mm intervals).
  • Page 173 TROUBLESHOOTING July 30th, 1996 COPY QUALITY TROUBLESHOOTING 7.1.11. Faint Copies Possible Causes (Scanner) • Scanner shading correction error or wrong scan threshold. • Contact image sensor (LED, sensor element) defect Action: • Do the image sensor initialization by service function 10 (Shading Test). (Refer to section 4-1.) •...
  • Page 174 July 30th, 1996 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 7.1.12. Unfused Copies Possible Cause (Printer) • The thermistor is defective. • The fusing pressure roller spring mechanism is defective. • The wrong type of toner is being used. • A non-recommended type of paper is being used. Action: 1.
  • Page 175 TROUBLESHOOTING July 30th, 1996 COPY QUALITY TROUBLESHOOTING 7.1.15. Misaligned Output (Data shifted to the right or left) Possible Cause (Scanner) • Incorrect setting of the document guide. Action: • Align each side of the document to the document guides. Possible Cause (Printer) •...

  • Page 176: Mechanical Problems

    July 30th, 1996 TROUBLESHOOTING MECHANICAL PROBLEMS 7.2. MECHANICAL PROBLEMS 7.2.1. ADF/Scanner 1. Non Feed Possible Cause: • An incorrect type or size of document is used. • The operation panel is not properly closed. • The pick-up and feed rollers are dirty or worn out. •...
  • Page 177 TROUBLESHOOTING July 30th, 1996 MECHANICAL PROBLEMS 2. Jam Possible Cause: • An incorrect type or size of document is used. • The document is too long. • The scanner rollers (pick-up and feed rollers) are dirty. • Obstruction in the document paper path. •...
  • Page 178 July 30th, 1996 TROUBLESHOOTING MECHANICAL PROBLEMS 3. Skew Possible Cause: • An incorrect type or size of document is used. • The document guide is not properly set. • The operation panel is not properly closed. • The scanner rollers (pick-up and feed rollers) are dirty. •...
  • Page 179 TROUBLESHOOTING July 30th, 1996 MECHANICAL PROBLEMS 7.2.2. Printer 1. Non-feed Possible Cause: • A non-recommended type of paper is being used. • The paper tray and the paper guide is not properly set. • The paper pick-up mechanism is not working properly. •...
  • Page 180 July 30th, 1996 TROUBLESHOOTING MECHANICAL PROBLEMS 2. Paper Jam - Inside the Printer Possible Cause: • A non-recommended type of paper is being used. • The paper, paper tray, and/or the paper guide is not properly set. • The registration sensor is defective. •...
  • Page 181 TROUBLESHOOTING July 30th, 1996 MECHANICAL PROBLEMS 4. Skew Possible Cause: • A non-recommended type of paper is being used. • Incorrect positioning of the paper guide. • The paper pick-up rollers are worn out or damaged. • Obstruction in the paper path. Action: 1.

  • Page 182: Service Call Conditions

    July 30th, 1996 TROUBLESHOOTING SERVICE CALL CONDITIONS 7.3. SERVICE CALL CONDITIONS If the Call Service indicator is lit, one of the following conditions has occurred. Symptom Error Code Sub-code SC Code Laser diode failure 9-20 2-22 Fusing unit failure 9-22 0-02 Mirror motor error 9-23...
  • Page 183 TROUBLESHOOTING July 30th, 1996 SERVICE CALL CONDITIONS Symptom: Fusing Unit Failure (Error Code 9-22) This error occurs in any of the following conditions: • When the fusing temperature is below 90° C and does not increase at least 20° C within 12 to 30 seconds after the lamp turns on.
  • Page 184 July 30th, 1996 TROUBLESHOOTING SERVICE CALL CONDITIONS Symptom: Unexpected printer error (Error Code 9-35) This error occurs in either of the following conditions: • When the Printer Ready signal is not detected longer than a certain period of time. • When a valid signal from the printer is not detected within a certain period of time. Action: 1.

  • Page 185: Error Codes

    TROUBLESHOOTING July 30th, 1996 ERROR CODES 7.4. ERROR CODES If an error code occurs, retry the communication. If the same problem occurs, try to fix the problem as suggested below. Note that error codes 4-00, 01, 02, and 10 only appear in the error code display and on the service report. Code Meaning Suggested Cause/Action...
  • Page 186 July 30th, 1996 TROUBLESHOOTING ERROR CODES Code Meaning Suggested Cause/Action 0-07 No post-message Check the line connection. response from the other Check the FCU - NCU connectors. end after a page was sent Replace the NCU or FCU. The other end may have jammed or run out of paper. The other end user may have disconnected the call.
  • Page 187 TROUBLESHOOTING July 30th, 1996 ERROR CODES Code Meaning Suggested Cause/Action 0-20 Facsimile data not Check the line connection. received within Check the FCU - NCU connectors. 6 s 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 188 July 30th, 1996 TROUBLESHOOTING ERROR CODES Code Meaning Suggested Cause/Action 0-30 The other terminal did Check the line connection. not reply to NSS(A) in AI Check the FCU - NCU connectors. short protocol mode Try adjusting the tx level and/or cable equalizer settings.
  • Page 189 TROUBLESHOOTING July 30th, 1996 ERROR CODES Code Meaning Suggested Cause/Action 2-20 Abnormal Replace the FCU. coding/decoding (cpu not ready) 2-50 The machine reset itself Replace the FCU. 4-00 One page took longer Check for a bad line. than 8 minutes to transmit Try the communication at a lower resolution, or without halftone.
  • Page 190 July 30th, 1996 TROUBLESHOOTING ERROR CODES Code Meaning Suggested Cause/Action 6-04 G3 ECM - RTC not Check the line connection. detected Check connections from the NCU to the FCU. Check for a bad line or defective remote terminal. Replace the FCU or NCU. 6-05 G3 ECM - facsimile data Check the line connection.
  • Page 191 TROUBLESHOOTING July 30th, 1996 ERROR CODES Code Meaning Suggested Cause/Action 9-22 Fusing lamp failure If the problem persists, replace the MCB. Cross reference Fusing lamp failure - Section 7-3 9-23 Polygonal mirror motor If the problem persists, replace the MCB. failure Cross reference Mirror motor failure - Section 7-3...

  • Page 192: Electrical Component Defects

    July 30th, 1996 TROUBLESHOOTING ELECTRICAL COMPONENT DEFECTS 7.5. ELECTRICAL COMPONENT DEFECTS 7.5.1. Defective Sensor Table Sensor Symptoms if Defective Document sensor "CLEAR ORIGINAL" or "DIAL FAX NO" is displayed at power-up. "SET DOCUMENT" is still displayed after a document is placed in the feeder. Scan line sensor "CLEAR ORIGINAL"...
  • Page 193 Symbol Table Point-to-Point Diagram AC Line DC Line Issued on: August 28th, 1996 Model:FX7 Revision 1.0 Signal Direction Subject to change Active High Active Low Voltage +24V Line Synchronization +24V (SW) COM3 COM 1 RSEL (US - Not used) LD APC2 +24V (SW) Not used LD APC1...

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