Ricoh FAX180 Service Manual
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Ricoh FAX180 Service Manual

Ricoh FAX180 Service Manual

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BRO/BR1
RICOH FAX180/170
SERVICE MANUAL
August 7th, 1995
Subject to change

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Summary of Contents for Ricoh FAX180

  • Page 1 BRO/BR1 RICOH FAX180/170 SERVICE MANUAL August 7th, 1995 Subject to change...
  • Page 2 Lithium Batteries CAUTION The danger of explosion exists if a battery of this type is incorrectly replaced. Replace only with the same or an equivalent type recommended by the manufacturer. Discard used batteries in accordance with the manufacturer’s instructions.

  • Page 3: Overall Machine Information

    August 7th, 1995 OVERALL MACHINE INFORMATION SPECIFICATIONS 1. OVERALL MACHINE INFORMATION Compression 1.1. SPECIFICATIONS BR0: MH, MR, MMR, EFC, SSC Type BR1: MH, MR, EFC, SSC Desktop type transceiver Protocol Circuit Group 3 PSTN, PABX Modulation Connection V.29 (QAM), V.27ter (PHM), V.21 (FM) Direct couple Data Rate (bps) Document Size...
  • Page 4 OVERALL MACHINE INFORMATION August 7th, 1995 SPECIFICATIONS Dimensions (W X D X H) 396 X 281 X 108 mm [15.6" X 11.1" X 4.2"] excluding trays Weight Approx. 5 Kg [11 lbs] excluding trays and thermal paper...
  • Page 5 August 7th, 1995 OVERALL MACHINE INFORMATION FEATURES 1.2. FEATURES Communication Features - BR0 BR1 User Selectable KEY: O = Used, X = Not Used, Batch Transmission A = Chinese version only Broadcasting Chain Dialing Equipment BR0 BR1 Communication Result Dis- play Book scan Confidential ID Override...
  • Page 6 OVERALL MACHINE INFORMATION August 7th, 1995 FEATURES Communication Features - Other User Features BR0 BR1 BR0 BR1 User Selectable Copy Mode Restriction Super Fine Resolution Counters (16 x15.4 l/mm : 400 x 400 Daylight Saving Time dpi) Destination Check Telephone Directory Direct entry of names Tonal Signal Transmission File Retention Time...

  • Page 7: Component Layout

    August 7th, 1995 OVERALL MACHINE INFORMATION COMPONENT LAYOUT 1.3. COMPONENT LAYOUT 1.3.1. Mechanical Components H068D001.wmf Name Description ADF Roller Picks up pages of the document. R1 Roller Feeds the document through the scanner. CIS Spring This applies pressure against the scanner roller. Contact Image Sensor This sensor reads and converts the light reflected from (CIS) Assembly...

  • Page 8: Drive Components

    OVERALL MACHINE INFORMATION August 7th, 1995 COMPONENT LAYOUT 1.3.2. Drive Components H068D003.wmf Name Description Scanner Roller This feeds the document through the scanner. R1 Roller This feeds the document through the scanner. Scanner Roller Drive Gear This drives the scanner roller. R1 Roller Drive Gear This drives the R1 roller.

  • Page 9: Electrical Components

    August 7th, 1995 OVERALL MACHINE INFORMATION COMPONENT LAYOUT 1.3.3. Electrical Components H068D002.wmf 1. PCBs Name Description Contact Image Sensor This sensor reads and converts the light reflected from (CIS) Assembly the document into an analog video signal. An LED array, which illuminates the document, is contained in this unit.
  • Page 10 OVERALL MACHINE INFORMATION August 7th, 1995 COMPONENT LAYOUT 2. Motors Name Description Tx Motor This stepper motor drives the scanner. Rx Motor This stepper motor drives the platen roller. 3. Sensors Name Description Scan Line Sensor This detects when a page is approaching the scan line. Document Sensor This detects the presence of a document in the feeder.

  • Page 11: Overall Machine Control

    August 7th, 1995 OVERALL MACHINE INFORMATION OVERALL MACHINE CONTROL 1.4. OVERALL MACHINE CONTROL DRAM Working ECM/SAF System Memory System RAM Video (SRAM) SRAM (4MEPROM) DATA/ADDRESS BUS FCIP Contact Image Amplifier Control Signals Sensor Thermal DC-DC Head Converter Thermistor Amplifier / Filter Drivers Rx motors Jam Sensor /...

  • Page 12: Video Data Path

    OVERALL MACHINE INFORMATION August 7th, 1995 VIDEO DATA PATH 1.5. VIDEO DATA PATH 1.5.1. Transmission Original Contact Image Sensor Assembly Image Sensor LED Array Amplifier Video FCIP Processing Amplifier Memory DATA/ADDRESS BUS FIFO DRAM ECM/SAF Memory Memory DIP: Digital Image Processor DCR: Data Compression &...
  • Page 13 August 7th, 1995 OVERALL MACHINE INFORMATION VIDEO DATA PATH 1.5.2. Reception From the network Amplifier FCIP DATA/ADDRESS BUS FIFO DRAM Memory ECM/SAF Memory Thermal LIF: Laser Interface Head DCR: Data Compression & Reconstruction MDM: Modem Copy Paper H068V508.wmf Data from the line passes to the modem through the NCU. After the modem demodulates the data, the decompressed data passes to the DCR block, through the ECM memory, where the data is decompressed to raster image data.
  • Page 14 OVERALL MACHINE INFORMATION August 7th, 1995 VIDEO DATA PATH 1.5.3. Copying Original Contact Image Sensor Assembly Image Sensor LED Array Amplifier Video FCIP Processing Memory DATA/ADDRESS BUS FIFO DRAM Memory ECM/SAF Memory MDM: Modem Thermal Head DCR: Data Compression & Reconstruction LIF: Laser Interface Copy Paper H068V509.wmf...

  • Page 15: Power Distribution

    August 7th, 1995 OVERALL MACHINE INFORMATION POWER DISTRIBUTION 1.6. POWER DISTRIBUTION 1.6.1. Distribution Diagram Cutter AC Power Scan Line +24V Document +24V AC/DC DC/DC Converter Converter B4 width +5BAT Speaker +5VCIS Thermal Head Paper Size +24V Rx Motor Tx Motor Panel H068V501.wmf The PSU supplies +24V dc power to the FCU.
  • Page 16 OVERALL MACHINE INFORMATION August 7th, 1995 POWER DISTRIBUTION 1.6.2. Memory Back-up VDVDET POWERS Switching FCIP Circuit 5RTCCS 1SAFFG DRAM System +5VBAT DC/DC Converter [IC30] H068V502.wmf The +5VBAT supply from the lithium battery [A] backs up the system RAM which contains system parameters and programmed telephone numbers, and the real time clock in the main CPU.

  • Page 17: Detailed Section Descriptions

    August 7th, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 2. DETAILED SECTION DESCRIPTIONS 2.1. SCANNER 2.1.1. Mechanisms 1. Overview H068D013.wmf H068D004.wmf The scanner consists of two mechanisms, a scanning mechanism and a document feed mechanism. The document feed mechanism consists of the ADF gear [A], ADF roller [B], and separation rubber plate [C] to separate and feed the documents.
  • Page 18 DETAILED SECTION DESCRIPTIONS August 7th, 1995 SCANNER 2. Document Detection H068D009.wmf H068D005.wmf The document sensor [A] detects when a document is placed in the ADF. The B4 width sensor [B] detects when the width of a document is over A4 or LT.
  • Page 19 August 7th, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 4. Drive Mechanism H068D003.wmf The tx motor [A] drives the ADF roller [B], R1 roller [C], and scanner roller [D]. Because the scanner roller turns a bit faster than the R1 roller, the document is always under tension.
  • Page 20 DETAILED SECTION DESCRIPTIONS August 7th, 1995 SCANNER 5. Image Scanning H068D004.wmf The scanner consists of the scanner roller [A] and a contact image sensor (CIS) assembly [B]. Inside the CIS are an exposure glass, a optical lens ar- ray, an image sensor, and an LED array. The image sensor consists of a row of 2048 photosensitive elements (256 mm width x 8 dots/mm).
  • Page 21 August 7th, 1995 DETAILED SECTION DESCRIPTIONS SCANNER 6. Jam Detection 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 Non-feed 1-00 6.0 s of prefeeding.
  • Page 22 DETAILED SECTION DESCRIPTIONS August 7th, 1995 PRINTING 2.2. PRINTING 2.2.1. Mechanisms 1. Overview H068D006.wmf This printer consists of the platen roller [A], thermal head [B], and cutter unit [C], which is a shuttle cutter type. Whenever the printer cover [D] is closed, the pressure spring [E] presses the thermal head against the platen roller so that the printing and paper feeding can be performed.
  • Page 23 August 7th, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 2. Paper Feeding There are three paper feeding modes. • Image printing (Received images, Copies, Reports) • Manual paper cut • Automatic paper cut 30 mm H068D502.wmf [a]: Thermal Head [b]: Platen Roller [c]: Printer Jam Sensor [d]: Cutter - Image Printing -...
  • Page 24 DETAILED SECTION DESCRIPTIONS August 7th, 1995 PRINTING 3. Paper Size and Paper End Detection H068D011.wmf H068D008 In B4 models, the paper size detector [A] on the FCU is located under the pa- per holder. When a roll of A4/8 " width paper is placed in the paper holder and the paper guide [B] is installed in the paper holder, the paper guide acti- vates the paper size detector.
  • Page 25 August 7th, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 4. Paper Skew and Paper Jam Correction H068D011.wmf H068D008.wmf When a roll of the paper is almost used up, the position of the roll in the pa- per holder becomes unstable. In this case, image skew may occur. In the worst case, paper jams may occur.
  • Page 26 DETAILED SECTION DESCRIPTIONS August 7th, 1995 PRINTING 2.2.2. Cutter 1. Overview H068D015.wmf The shuttle cutter consists of a paper guide frame [A], rotary cutter [B], cutter sensor [C], and printer jam sensor [D]. 2. Cutter Sensor H068D014.wmf In standby mode, the cutter is always at the home position. When the ma- chine has finished printing, the Rx motor stops then the cutter moves across the paper.
  • Page 27 August 7th, 1995 DETAILED SECTION DESCRIPTIONS PRINTING 2.2.3. Jam Detection Condition Error Code Cover open When the cover open/end sensor detects one of those 1-17 Paper end during printing. Non-Feed When the printer jam sensor does not turn on after the paper has been fed for 20 mm since the rx motor 1-20 started.

  • Page 28: Fcip (Facsimile Controller And Image Processor)

    August 7th, 1995 DETAILED SECTION DESCRIPTIONS PCBs 2.3. PCBs 2.3.1. FCU 1. FCIP (Facsimile Controller and Image Processor) DRAM Working ECM/SAF System Memory System RAM Video (SRAM) SRAM (4MEPROM) DATA/ADDRESS BUS FCIP Contact Image Control Signals Amplifier Sensor Thermal DC-DC Head Converter Thermistor...

  • Page 29: Video Sram

    DETAILED SECTION DESCRIPTIONS August 7th, 1995 PCBs 2. ROM • 512 kB (4 Mbit) EP-ROM for system software storage 3. DRAM • Backed up by the dry cells on the FCU (Only used in the China model) 4. SRAM • 32 kB SRAM for system and user parameter storage •...
  • Page 30 August 7th, 1995 DETAILED SECTION DESCRIPTIONS PCBs 2.3.3. NCU • Surge protection circuit • DC loop current detection • Dial pulse creation • Tone signal detection • Ringing detection • Monitor speaker driver 2-14...

  • Page 31: Installation

    August 7th, 1995 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. 3.2. INITIAL PROGRAMMING Items to Program ( Service Level ) Function No.

  • Page 32: Service Tables And Procedures

    August 7th, 1995 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 - Up arrow key...
  • Page 33 SERVICE TABLES AND PROCEDURES August 7th, 1995 SERVICE LEVEL FUNCTIONS 5. Either: • Adjust more bit switches - go to step 3. • Finish - 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...
  • Page 34 August 7th, 1995 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 35 SERVICE TABLES AND PROCEDURES August 7th, 1995 SERVICE LEVEL FUNCTIONS 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. Enter the first four digits of the start and MEMORY DUMP START/N end addresses .
  • Page 36 August 7th, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS (To see the scanned and printed SCAN 012345 PRINT 012345 page counters, press To see the printer and scanner jam count- S.JAM: 000000 P.JAM: 000000 ers, press again.) 4. To change the contents of a counter, input the new value, then press 5.

  • Page 37: Dtmf Tone Test (Function 08)

    SERVICE TABLES AND PROCEDURES August 7th, 1995 SERVICE LEVEL FUNCTIONS MODEM TEST START/< > 800Hz 4. Scroll through the available tests using 6. To stop the test: 7. To finish: 4.1.11. DTMF Tone Test (Function 08) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-NCU 1-MODEM...

  • Page 38: Operation Panel Test (Function 09)

    August 7th, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.12. Operation Panel Test (Function 09) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-LED/LCD 5. To stop the test, press 6. To finish: 4.1.13. LED Array Test (Function 10) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-LAMP...

  • Page 39: Adf Test (Function 10)

    SERVICE TABLES AND PROCEDURES August 7th, 1995 SERVICE LEVEL FUNCTIONS 4.1.14. 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 40: Printer Test Patterns (Function 11)

    August 7th, 1995 SERVICE TABLES AND PROCEDURES SERVICE LEVEL FUNCTIONS 4.1.16. 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: 4.1.17.
  • Page 41 SERVICE TABLES AND PROCEDURES August 7th, 1995 SERVICE LEVEL FUNCTIONS 4.1.18. RAM Tests (Function 12) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 0-SRAM 1-SAF 3. Either: Test the SRAM: Press Test the SAF: Press (Not available for the BR1) If test is successful, the display shows "OK". If test is unsuccessful, the display shows "ADDRESS=".
  • Page 42 4.1.20. Serial Number (Function 13: BR1) (Function 14: BRO) FUNCTION KPAD/NEXT SERVICE FUNCTIONS then immediately 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: 4-11...

  • Page 43: Bit Switches

    SERVICE TABLES AND PROCEDURES August 7th, 1995 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 44 August 7th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 00 FUNCTION COMMENTS Technical data printout on 1: The following data are listed on the TCR for each TCR (Journal) analog G3 communication. 0: Disabled e.g. V29 96 01 03 00 02 1: Enabled First number: Final modem type used Second number: Final modem rate (for example, 96...

  • Page 45: Communication Parameters

    SERVICE TABLES AND PROCEDURES August 7th, 1995 BIT SWITCHES Communication Parameters Mode DCS: ITU-T standard NSS: Non-standard G3 Modem rate 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 MMR: MMR compression...
  • Page 46 August 7th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 02 FUNCTION COMMENTS Memory file transfer 1: All messages in the memory (including substitute rx (BRO only) messages) are sent to the fax number which is 0: Disabled programmed as the service station. 1: Enabled Always reset this bit to zero after transfer.
  • Page 47 SERVICE TABLES AND PROCEDURES August 7th, 1995 BIT SWITCHES System Switch 04 FUNCTION COMMENTS 0-2 Not used Do not change the settings. Dedicated transmission This bit must be set to 1 before changing any parameter programming dedicated transmission parameters. 0: Disabled 1: Enabled 4-5 Not used Do not change the settings.
  • Page 48 August 7th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES System Switch 06 FUNCTION COMMENTS Use of the Stop key during 1: Memory transmissions can be stopped by pressing memory transmission (BRO the Stop key. However, users might accidentally cancel only) another person’s memory transmission in progress.
  • Page 49 SERVICE TABLES AND PROCEDURES August 7th, 1995 BIT SWITCHES System Switch 0A FUNCTION COMMENTS 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 50 August 7th, 1995 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 51 SERVICE TABLES AND PROCEDURES August 7th, 1995 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 14 m or a higher setting.

  • Page 52: Printer Switches

    August 7th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES 4.2.3. Printer Switches Printer Switch 00 - Not used (do not change the settings) Printer Switch 01 - Not used (do not change the settings) Printer Switch 02 - Not used (do not change the settings) Printer Switch 03 - Not used (do not change the settings) Printer Switch 04 - Not used (do not change the settings) Printer Switch 05 - Not used (do not change the settings)

  • Page 53: Communication Switches

    SERVICE TABLES AND PROCEDURES August 7th, 1995 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 54 August 7th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES Communication Switch 01 FUNCTION COMMENTS Not used Do not change the setting. EFC during transmission If this bit is 0, EFC is switched off during transmission. 0: Off 1: On Wrong connection (0,1) - The machine will not transmit if the last 8 digits prevention method of the received CSI do not match the last 8 digits of the...
  • Page 55 SERVICE TABLES AND PROCEDURES August 7th, 1995 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 56 August 7th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES Communication Switch 04 FUNCTION COMMENTS Reception mode switchover These settings are available when bit 5 of user from TEL mode to FAX parameter switch 7 is set to 1. mode 1: After picking up the handset, press the switchover 0: Disabled 1: Enabled digit twice on the external handset’s keypad.
  • Page 57 SERVICE TABLES AND PROCEDURES August 7th, 1995 BIT SWITCHES Communication Switch 0B - Not used (do not change the settings) Communication Switch 0C - Not used (do not change the settings) 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)
  • Page 58 August 7th, 1995 SERVICE TABLES AND PROCEDURES BIT SWITCHES Communication Switch 13 FUNCTION COMMENTS Immediate transmission: 00 - FF (Hex) minutes Interval between dialing attempts to the same destination Communication Switch 14 - 1F: Not used (do not change the settings) 4-27...
  • Page 59 SERVICE TABLES AND PROCEDURES August 7th, 1995 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 60 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 61 SERVICE TABLES AND PROCEDURES August 7th, 1995 BIT SWITCHES G3 Switch 04 FUNCTION COMMENTS Training error detection 0 - F (Hex); 0 - 15 bits threshold If the number of error bits in the received TCF is below this threshold, the machine informs the sender that the training has succeeded.
  • Page 62 August 7th, 1995 SERVICE TABLES AND PROCEDURES 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 63 SERVICE TABLES AND PROCEDURES August 7th, 1995 BIT SWITCHES G3 Switch 09 - Not used (do not change the settings) G3 Switch 0A FUNCTION COMMENTS Maximum allowable carrier These bits set the acceptable modem carrier drop time. drop during image data Try using a longer setting if error code 0-22 is frequent.

  • Page 64: Ncu Parameters

    August 7th, 1995 SERVICE TABLES AND PROCEDURES 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 65 SERVICE TABLES AND PROCEDURES August 7th, 1995 NCU PARAMETERS Address Function Unit Remarks 807F01 Line current detection time 20 ms Line current is not detected (006701) if 807F01 contains FF. 807F02 Line current wait time (006702) 807F03 Line current drop detect time (006703) 807F04 PSTN dial tone frequency range...
  • Page 66 August 7th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks 807F17 PABX dial tone frequency range Hz (BCD) See Note 2. (006717) (high byte) 807F18 PABX dial tone frequency range (low byte) (006718) 807F19 Not used Do not change the factory settings.
  • Page 67 SERVICE TABLES AND PROCEDURES August 7th, 1995 NCU PARAMETERS Address Function Unit Remarks 807F2A Busy tone ON time: range 1 20 ms (00672A) 807F2B Busy tone OFF time: range 1 (00672B) 807F2C Busy tone ON time: range 2 (00672C) 807F2D Busy tone OFF time: range 2 (00672D) 807F2E...
  • Page 68 August 7th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks 807F38 International dial tone detection 20 ms If 807F38 contains FF, the (006738) time machine pauses for the pause time (807F3D / 807F39 International dial tone reset time 807F3E).
  • Page 69 SERVICE TABLES AND PROCEDURES August 7th, 1995 NCU PARAMETERS Address Function Unit Remarks 807F4E Minimum pause between dialled 20 ms See Note 3. Function 08 (00674E) digits (pulse dial mode) (parameter 15). 807F4F Time waited when a pause is Function 08 (parameter 16). entered at the operation panel See Note 3.
  • Page 70 August 7th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks 807F60 Not used Do not change the settings. (006760) 807F64 (006764) 807F65 Intercity dial prefix (HIGH) For a code of 0: (006765) 807F65 - FF 807F66 - F0 807F66 Intercity dial prefix (LOW) (006766)
  • Page 71 SERVICE TABLES AND PROCEDURES August 7th, 1995 NCU PARAMETERS Address Function Unit Remarks Bits 0 and 1 - Handset off-hook detection time Setting 200 ms 800 ms Other Not used 807F82 Bits 2 and 3 - Handset on-hook detection time (006782) Setting 200 ms...
  • Page 72 August 7th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Address Function Unit Remarks 807FAE Not used Do not change the settings. (0067AE) 807FAF (0067AF) 807FB0 (0067B0) 807FB1 (0067B1) 807FB2 (0067B2) 807FB3 Detection time for 800 Hz AI short 20 ms Factory setting: 360 ms (0067B3) protocol tone...
  • Page 73 SERVICE TABLES AND PROCEDURES August 7th, 1995 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 74 August 7th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS Tone Detection Frequency Ranges - PSTN Dial Tone (BRO: 807F04 - 807F05, BR1: 006704 - 006705) - France Germany Italy RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 415 - 465 400 - 480 030 (Default)
  • Page 75 SERVICE TABLES AND PROCEDURES August 7th, 1995 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 76 August 7th, 1995 SERVICE TABLES AND PROCEDURES 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 77 SERVICE TABLES AND PROCEDURES August 7th, 1995 NCU PARAMETERS - PSTN Busy Tone (BRO: 807F13 - 807F14, BR1: 006713 - 006714) - France Germany U. K. RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 415 - 465 400 - 480 330 - 470 410 - 470...
  • Page 78 August 7th, 1995 SERVICE TABLES AND PROCEDURES 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 79 SERVICE TABLES AND PROCEDURES August 7th, 1995 NCU PARAMETERS - PABX Busy Tone (BRO: 807F26 - 807F27, BR1: 006726 - 006727) - Italy Denmark Switzerland, Israel RAM Value RAM Value RAM Value Range (Hz) Range (Hz) Range (Hz) 030 (Default) 410 - 440 405 - 445 385 - 560...

  • Page 80: Default Settings

    August 7th, 1995 SERVICE TABLES AND PROCEDURES 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 81 SERVICE TABLES AND PROCEDURES August 7th, 1995 NCU PARAMETERS 807F10 807F11 807F12 807F13 807F14 Country (006710) (006711) (006712) (006713) (006714) Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia China 807F15 807F16 807F17 807F18 807F19 Country (006715) (006716) (006717) (006718) (006719)
  • Page 82 August 7th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS 807F20 807F21 807F22 807F23 807F24 Country (006720) (006721) (006722) (006723) (006724) Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia China 807F26 807F27 807F28 807F29 807F2A Country (006726) (006727) (006728) (006729) (00672A)
  • Page 83 SERVICE TABLES AND PROCEDURES August 7th, 1995 NCU PARAMETERS 807F30 807F31 807F32 807F33 807F34 Country (006730) (006731) (006732) (006733) (006734) Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia China 807F36 807F37 807F38 807F39 807F3A Country (006736) (006737) (006738) (006739) (00673A)
  • Page 84 August 7th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS 807F41 807F42 807F43 807F44 807F45 Country (006741) (006742) (006743) (006744) (006745) Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia China 807F46 807F47 807F48 807F49 807F4A Country (006746) (006747) (006748) (006749) (00674A)
  • Page 85 SERVICE TABLES AND PROCEDURES August 7th, 1995 NCU PARAMETERS 807F50 807F51 807F52 807F53 807F54 Country (006750) (006751) (006752) (006753) (006754) Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia China 807F59 807F5A 807F5B 807F5C 807F5D Country (006759) (00675A) (00675B) (00675C) (00675D)
  • Page 86 August 7th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS 807F73 807F74 807F75 807F76 807F77 Country (006773) (006774) (006775) (006776) (006777) Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia China 807F78 807F79 807F7A 807F81 807F82 Country (006778) (006779) (00677A) (006781) (006782)
  • Page 87 SERVICE TABLES AND PROCEDURES August 7th, 1995 NCU PARAMETERS 807FA6 807FA7 807FA8 807FA9 807FAA Country (0067A6) (0067A7) (0067A8) (0067A9) (0067AA) Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia China 807FAB 807FAC 807FAD 807FAE 807FAF Country (0067AB) (0067AC) (0067AD) (0067AE) (0067AF)
  • Page 88 August 7th, 1995 SERVICE TABLES AND PROCEDURES NCU PARAMETERS 807FB6 807FB7 807FB8 807FB9 807FBD Country (0067B6) (0067B7) (0067B8) (0067B9) (0067BD) Israel Asia Hong Kong South Africa Australia New Zealand Singapore Malaysia China 807FDA Country (0067DA) Israel Asia Hong Kong South Africa Australia New Zealand Singapore...

  • Page 89: Dedicated Transmission Parameters

    SERVICE TABLES AND PROCEDURES August 7th, 1995 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 90 August 7th, 1995 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 91 SERVICE TABLES AND PROCEDURES August 7th, 1995 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 92: Service Ram Addresses

    August 7th, 1995 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.” BRO and BR1 use different RAM addresses. The addresses for BR1 are in brackets.
  • Page 93 SERVICE TABLES AND PROCEDURES August 7th, 1995 SERVICE RAM ADDRESSES 8000A0[H] (0051A0[H]) - User parameter switch 00 Bit 0: Do not adjust Bits 1 and 2: Scanning contrast home position Setting Normal Lighten Darken Bit 3: Do not adjust Bits 4 and 5: Scanning resolution home position Setting Standard Detail...
  • Page 94 August 7th, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 8000A6[H] (0051A6[H]) - User parameter switch 06 Bit 0: TTI 0: Off, 1: On Bit 1: Not used Bit 2: Closed network for transmission 0: Off, 1: On Bits 3 to 7: Not used 8000A7[H] (0051A7[H]) - User parameter switch 07 Bits 0 to 4: Not used Bit 5: Reception mode switchover...
  • Page 95 SERVICE TABLES AND PROCEDURES August 7th, 1995 SERVICE RAM ADDRESSES 8000AE (0051AE)- 8000AF[H] (0051AF[H])- User parameter 14 to 15 Not used 8000B9[H] (0051B9[H]) - User function 62 settings Bits 0 to 3: Not used Bit 4: RDS operation 0: Not acceptable 1: Acceptable for the limit specified by system switch 03 Bits 5 and 6: Not used...
  • Page 96 August 7th, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 800158 to 80015A[H] - Tx counter (TX) (005234 to 005236[H]) Address High 800158[H] Tens digit Unit digit (005234[H]) 800159[H] Thousands digit Hundreds digit (005235[H]) 80015A[H] Millions digit Ten thousands digit (005236[H]) Note: The following counters have the same data format as above.
  • Page 97 SERVICE TABLES AND PROCEDURES August 7th, 1995 SERVICE RAM ADDRESSES Bit no. Mode Resolution The functions of each bit are Address described below this table. Standard 8003FD[H] (Memory tx) (005309[H]) Standard 8003FE[H] (Immediate tx) (00530A[H]) Text Detail 8003FF[H] (00530B[H]) 800400[H] (00530C[H]) Standard 800401[H]...
  • Page 98 August 7th, 1995 SERVICE TABLES AND PROCEDURES SERVICE RAM ADDRESSES 801426 to 801637[H] - Latest 10 error communication records (005730to 005838[H]) 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 99 SERVICE TABLES AND PROCEDURES August 7th, 1995 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 100: Replacement And Adjustment

    August 7th, 1995 REPLACEMENT AND ADJUSTMENT EXTERIOR 5. REPLACEMENT AND ADJUSTMENT CAUTION Before starting disassembly, be sure to print all message files in the SAF memory (BRO only). Then, turn off the main switch and disconnect the power cord for safety. Lithium Battery: The danger of explosion exists if a battery of this type is incorrectly replaced.
  • Page 101 REPLACEMENT AND ADJUSTMENT August 7th, 1995 {<2nd Lev Title] 5.1.2. Operation Panel Assembly [A] H068R002.WMF [A]: Operation Panel Cover (1 connector, 1 grounding connector) 5.1.3. Separation Pad [D] H068R003.WMF First, remove the operation panel cover. [A]: Spring Plate (1 grounding wire) [B]: Separaton Pad Ass’y (1 spring [C]) [D]: Separation Pad NOTE: Make sure that the spring plate is installed correctly as shown above.
  • Page 102 August 7th, 1995 REPLACEMENT AND ADJUSTMENT SCANNER 5.2. SCANNER 5.2.1. CIS [A] H068R004.WMF First, remove the upper cover and the scanner roller. [A]: CIS (2 tabs, 1 connector) After installing the CIS, the shading adjustment should be done using service function no. 10 (see section 4.1.15).
  • Page 103 REPLACEMENT AND ADJUSTMENT August 7th, 1995 {<2nd Lev Title] 5.3. PRINTER 5.3.1. Thermal Head Assembly [B] H068R006.WMF First, open the printer cover. [A]: Decurler (4 tabs) [B]: Thermal Head (2 hooks, 1 tab) 5.3.2. Cutter Assembly [A] H068R005.WMF First, remove the upper cover. [A]: Cutter Ass’y (3 screws, 2 connectors)
  • Page 104 August 7th, 1995 REPLACEMENT AND ADJUSTMENT PCBs 5.4. PCBs 5.4.1. PSU, FCU and NCU H068R008.WMF First, remove the upper cover. [A]: PSU (2 screws, 2 connectors, 1 grounding wire) [B]: FCU (8 connectors, 4 screws) [C]: NCU (2 screws, 1 connector, 1 grounding wire) NOTE: The FCU and NCU are attached by the same connector.
  • Page 105 REPLACEMENT AND ADJUSTMENT August 7th, 1995 {<2nd Lev Title] 5.5. ROLLERS AND MOTORS H068R010.wmf H068R009.wmf First, remove the upper cover, scanner roller, CIS, and the cutter ass’y. [A]: Rear Cover (2 screws) [B]: Printer Cover (1 connector) [C]: Right side plate (4 screws) [D]: Rx Motor (2 screws, 1 connector) [E]: Tx Motor (2 screws, 1 connector) [F]: Idle Gear...

  • Page 106: Copy Quality Troubleshooting

    August 7th, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6. TROUBLESHOOTING 6.1. COPY QUALITY TROUBLESHOOTING If there is a copy quality problepm 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 107 TROUBLESHOOTING August 7th, 1995 COPY QUALITY TROUBLESHOOTING 6.1.1. Blank Copies Possible Cause (Printer): • The harness conneted to the FCU is out of position. • The thermal head or the platen roller is not in the correct position. • The thermal head is defective. •...
  • Page 108 August 7th, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.3. Dirty Background H516T512.wmf H516T507.wmf Possible Cause (Scanner) • Scanner shading correction error or wrong threshold. Action: 1. Clean the exposure glass of the image sensor. 2. Adjust the scanner contrast threshold settings using Function 10-2. (See section 4.1.15.)
  • Page 109 TROUBLESHOOTING August 7th, 1995 COPY QUALITY TROUBLESHOOTING 6.1.4. Uneven Image Density H516T508.wmf H516T512.wmf Possible Cause (Scanner) • Dirty exposure glass • The contact image sensor is broken. Action 1. Clean the exposure glass of the image sensor. 2. Replace the image sensor. Possible Cause (Printer) •...
  • Page 110 August 7th, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.5. Vertical Black Lines H516T512.wmf H516T503.wmf 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 111 TROUBLESHOOTING August 7th, 1995 COPY QUALITY TROUBLESHOOTING 6.1.6. Horizontal Black Lines H516T510.wmf H516T511.wmf Possible Cause (Printer) • The thermal head is defective. • The FCU is defective. Action: 1. Check the connection between the FCU (CN13) and the thermal head. 2.
  • Page 112 August 7th, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.7. Vertical White Lines H516T506.wmf H516T512.wmf Possible Cause (Scanner) • Defective image sensor element(s). Action: • Replace the image sensor. Possible Cause (Printer) • The thermal head is defective. • The FCU is defective. Action: 1.
  • Page 113 TROUBLESHOOTING August 7th, 1995 COPY QUALITY TROUBLESHOOTING 6.1.8. Horizontal White Lines H516T509.wmf H516T511.wmf Possible Cause (Printer) • The thermal head is defective. • The FCU is defective. Action: 1. Check the connection between the FCU (CN13) and the thermal head. 2.
  • Page 114 August 7th, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.9. Black Dots/Spots H516T502.wmf Possible Cause (Scanner) • Dust on the exposure glass. • Scanner shading correction error or wrong threshold. • The FCU is defective. Action: 1. Clean the exposure glass of the image sensor. 2.
  • Page 115 TROUBLESHOOTING August 7th, 1995 COPY QUALITY TROUBLESHOOTING 6.1.10. White Spots in Black Image Areas H516T501.wmf Possible Cause (Scanner) • Dust on the exposure glass. • Scanner shading correction error or wrong threshold. • The FCU is defective. Action: 1. Clean the exposure glass of the image sensor. 2.
  • Page 116 August 7th, 1995 TROUBLESHOOTING COPY QUALITY TROUBLESHOOTING 6.1.11. Faint Copies H516T504.wmf H516T512.wmf Possible Causes (Scanner) • Dirty exposure glass • Wrong scan threshold • Contact image sensor (LED, sensor element) defect Action: 1. Clean the exposure glass. 2. Adjust the scan threshold settings using Function 10-2. (See section 4.1.15) 3.

  • Page 117: Mechanical Problems

    TROUBLESHOOTING August 7th, 1995 MECHANICAL PROBLEMS 6.1.12. Misaligned Output (Data shifted to the right or left) Possible Cause (Scanner) • Incorrect setting of the document guide. Action: • Align the document guides to each side of the document. Possible Cause (Printer) •...
  • Page 118 August 7th, 1995 TROUBLESHOOTING MECHANICAL PROBLEMS 2. Jam Possible Cause: • An incorrect type or size of document is used. • The document is too long. • The scanner rollers (ADF, feed, R1, and scanner rollers) are dirty. • Obstruction in the document paper path. •...
  • Page 119 TROUBLESHOOTING August 7th, 1995 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 (ADF, feed, R1, and scanner rollers) are dirty. •...
  • Page 120 August 7th, 1995 TROUBLESHOOTING MECHANICAL PROBLEMS 6.2.2. Printer 1. Non-feed Possible Cause: • A non-recommended type of paper is being used. • The platen roller and/or the thermal head is/are not properly set. • The Rx motor is defective. • The cutter jam is defective.
  • Page 121 TROUBLESHOOTING August 7th, 1995 MECHANICAL PROBLEMS 2. Paper Jam - Inside Printer Possible Cause: • A non-recommended type of paper is being used. • The cutter ass’y and/or thermal head is not properly set. • The platen roller is dirty. •...
  • Page 122 August 7th, 1995 TROUBLESHOOTING MECHANICAL PROBLEMS 3. Skew Possible Cause: • A non-recommended type of paper is being used. • Incorrect positioning of the platen roller and/or thermal head. • The platen roller is damaged. • Obstruction in the paper path. •...

  • Page 123: Error Codes

    TROUBLESHOOTING August 7th, 1995 ERROR CODES 6.3. 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 124 August 7th, 1995 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 125 TROUBLESHOOTING August 7th, 1995 ERROR CODES Code Meaning Suggested Cause/Action 0-21 EOL signal (end-of-line) Check the connections between the FCU, NCU, & from the other end not line. received within 5 s of the Check for line noise or other line problems. previous EOL signal Replace the NCU or FCU.
  • Page 126 August 7th, 1995 TROUBLESHOOTING ERROR CODES Code Meaning Suggested Cause/Action 1-01 Document length Try changing the maximum acceptable document exceeded the maximum length. Divide the document into smaller pieces. Check the ADF drive components and sensors. Cross reference Max. document length - Scanner switch 00, bits 2 and 3 ADF mechanical problems - Section 6-2-1 1-17...
  • Page 127 TROUBLESHOOTING August 7th, 1995 ERROR CODES Code Meaning Suggested Cause/Action 4-10 Communication failed Get the ID Codes the same and/or the CSIs because of ID Code programmed correctly, then resend. mismatch (Closed The machine at the other end may be defective. Network) or Tel.

  • Page 128: Electrical Component Defects

    August 7th, 1995 TROUBLESHOOTING ELECTRICAL COMPONENT DEFECTS Code Meaning Suggested Cause/Action 6-09 G3 ECM - ERR received Check for a noisy line. Adjust the tx levels of the communicating machines. See code 6-05. 6-10 G3 ECM - error frames Check for line noise. still received at the other Adjust the tx level (use NCU parameter 01 or the end after all...

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