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Brother FAX100 Service Manual

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FACSIMILE EQUIPMENT
SERVICE MANUAL
MODEL: FAX100/570/615/625/635/675
FAX575M/715M/725M
FAX590DT/590MC/825MC/875MC

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Summary of Contents for Brother FAX100

  • Page 1 FACSIMILE EQUIPMENT SERVICE MANUAL MODEL: FAX100/570/615/625/635/675 FAX575M/715M/725M FAX590DT/590MC/825MC/875MC...
  • Page 2 © Copyright Brother 1995 All rights reserved. No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher. Specifications are subject to change without notice.
  • Page 3 PREFACE This publication is a Service Manual covering the specifications, construction, theory of opera- tion, and maintenance of the Brother facsimile equipment. It includes information required for field troubleshooting and repair—disassembly, reassembly, and adjustment—so that service personnel will be able to understand equipment function, to rapidly repair the equipment and order any necessary spare parts.
  • Page 4 CHAPTER I. GENERAL DESCRIPTION...
  • Page 5 CONTENTS EQUIPMENT OUTLINE ................. 1.1 External Appearance ................1.2 Components .................... I-1 SPECIFICATIONS ..................I-2...

  • Page 6: Equipment Outline

    1. EQUIPMENT OUTLINE External Appearance The figure below shows the equipment appearance and approximate dimensions. 121 (H) 304 (D) 377 (W) (Unit: mm) Components The equipment has the following components: Facsimile Electronic/ Main PCB Equipment Electrical/ NCU PCB Section Control Panel PCB Recording Head Unit LED Array (for illuminating documents) Charge Coupled Device (CCD) Unit...

  • Page 7: Specifications

    2. SPECIFICATIONS Model FAX100 FAX615 FAX625 FAX635 FAX675 Color 1138 Modem Speed 9600 bps 9600 bps 9600 bps 9600 bps 9600 bps Coding Method Transmission Speed 15 sec 15 sec 15 sec 15 sec 15 sec CCITT Group Input/Output Width 8.5"/8.5"...
  • Page 8 Model FAX715M FAX725M FAX825MC FAX875MC Color Modem Speed 9600 bps 14400 bps 14400 bps 14400 bps Coding Method Transmission Speed 15 sec 9 sec 9 sec 9 sec CCITT Group Input/Output Width 8.5"/8.5" 8.5"/8.5" 8.5"/8.5" 8.5"/8.5" Auto Cutter ADF Capacity (pages) Anti-curl System Paper Size (Standard thermal/Therma PLUS) 164'/164'...
  • Page 9 1138/1293 (Note 4) 1138/1293 (Note 4) 1138/1293 (Note 4) Modem Speed 9600 bps 9600 bps 14400 bps Coding Method Transmission Speed (Brother chart) 15 sec 13 sec 9 sec (ITU-T No. 1 chart) 19 sec 15 sec 10 sec CCITT Group...
  • Page 10 CHAPTER II. INSTALLATION...
  • Page 11 CHAPTER III. THEORY OF OPERATION...

  • Page 12: Table Of Contents

    CONTENTS OVERVIEW ..................... III-1 1.1 Mechanical Layout ................. III-1 1.2 Functional Block Diagram ..............III-1 MECHANISMS ....................III-2 2.1 Transmitting Mechanism (Feeding and Scanning Documents) ....III-2 2.1.1 Automatic document feeder (ADF) ..........III-2 2.1.2 Scanner ................... III-2 2.2 Receiving Mechanism (Feeding Recording Paper & Recording Data) ... III-3 2.2.1 Anti-curl system (ACS) ..............
  • Page 13 [ 3 ] Image processing group ............. III-18 [ 4 ] Analog signal processing group ..........III-19 [ 5 ] MODEM ..................III-20 3.3 NCU PCB ....................III-21 3.4 Control Panel PCB ................. III-23 3.5 Power Supply ..................III-24...

  • Page 14: Overview

    1. OVERVIEW Mechanical Layout Recording paper cover Panel cover ASSY Recorder & cutter unit Main frame Drive unit Scanner frame ASSY Handset NCU PCB Power supply PCB Main PCB Handset mount Bottom plate Functional Block Diagram (Missing link) Automatic Control panel cutter Scanner Recorder...

  • Page 15: Mechanisms

    2. MECHANISMS Transmitting Mechanism (Feeding and Scanning Documents) The transmitting mechanism consists of the document stacker, automatic document feeder (ADF), document feeding related rollers, scanner, and document sensors. (For details about the sensors, refer to Section 2.3.) If the operator sets documents on the stacker and starts the sending operation, the ADF feeds those documents into the equipment, page by page.

  • Page 16: Receiving Mechanism (Feeding Recording Paper & Recording Data)

    Receiving Mechanism (Feeding Recording Paper & Recording Data) The receiving mechanism consists of the recording paper roll holder, anti-curl system (ACS), platen, thermal recording head, automatic cutter, and sensors. (For details about the sen- sors, refer to Section 2.3.) The recording paper is routed through the ACS to the recording head which prints onto the heat-sensitive recording paper pressed by the platen according to received image signals.

  • Page 17: Sensors

    2.3 Sensors This equipment has two photosensors and four mechanical sensors as described below. Photosensors • Document front sensor which detects a presence of documents. • Document rear sensor which detects the leading and trailing edges of pages to tell the control circuitry when the leading edge of a new page has reached the starting position and when the scan for that page is over.
  • Page 18 PE sensor actuator Document front sensor actuator (Front) Document rear sensor actuator Drive unit (Front) Cover sensor actuator Cutter sensor Hook switch actuator sensor actuator Location of Sensor Actuators III – 5...

  • Page 19: Power Transmission Shift By The Planetary Gear Train And Clutch Solenoid

    Power Transmission Shift by the Planetary Gear Train and Clutch Solenoid The equipment has a single drive motor whose power transmission route can be switched by the planetary gear train and the clutch solenoid. Accordingly, the equipment mechanism can function in four operation modes (recording, scanning, copying, and cutter driving modes). 2.4.1 Description of planetary gear train The planetary gear train consists of the sun gear 18/73, two planet gears 20, arm A, and arm...

  • Page 20: Power Transmission For Four Operation Modes

    2.4.2 Power transmission for four operation modes Depending upon the clutch solenoid ON/OFF state and the motor rotation direction, the plan- etary gear train switches the power transmission route for the four operation modes. Sun gear 18/73 Section Y Arm B Cutout X Planet gear Solenoid...

  • Page 21: 2 ] Scanning Mode (Solenoid: Off, Motor Rotation: Reverse)

    [ 2 ] Scanning mode (Solenoid: OFF, Motor rotation: Reverse) Just as in the recording mode, the control system deactivates the clutch solenoid in the scanning mode to lock arm A. The motor rotates in the reverse direction and the sun gear 18/73 (B) rotates clockwise so that the planet gear 20A (C2) transmits the rotation to the separation roller gear (L) and LF roller gear (O) via the several gears.

  • Page 22: 4 ] Cutter Driving Mode (Solenoid: On, Motor Rotation: Reverse)

    [ 4 ] Cutter driving mode (Solenoid: ON, Motor rotation: Reverse) The control system activates the clutch solenoid to release the stopper of arm A from cutout X of the clutch lever. When the motor rotates in the reverse direction, the sun gear 18/73 (B) rotates clockwise so that the planet gear 20A (C2) transmits the rotation to the cutter gear (Q).

  • Page 23: Power Transmission Route

    2.4.3 Power transmission route Rotation of the motor gear is transmitted as shown below. Motor gear Gear 44A Sun gear 18/73 Gear 21/50 C1: Planet gear 20B Gear 44B C2: Planet gear 20A Separation roller gear Gear 18/26 Idle gear 24A Platen gear Idle gear 24B Gear 16A...

  • Page 24: Control Electronics

    3. CONTROL ELECTRONICS Configuration The hardware configuration of the facsimile equipment is shown below. On the NCU PCB are the Line following switches: Handset • PE sensor (SW1) • Cover sensor (SW2) • Cutter sensor (SW3) • Hook switch sensor (SW4) On the main PCB are the Power following photosensors:...

  • Page 25: Fax100/570/615/625/635/675/575M/715M

    3.2.1 FAX100/570/615/625/635/675/575M/715M [ 1 ] Primary function group Main PCB Circuit Diagram 1/4 1 FAX engine (ASIC) which integrates a CPU, MODEM and gate array 2 Clock for MODEM 3 Clock for CPU 4 Clock for calendar clock 5 Reset IC 6 LED array light intensity control circuit and connector 7 Recording head drive voltage detector 8 Control panel connector...

  • Page 26: 2 ] Rom And Dram Group

    [ 2 ] ROM and DRAM group Main PCB Circuit Diagram 2/4 1 ROM (2-megabit. Note that the sample machines for demonstration have a 4- megabit ROM.) PROM (16-kilobit) 3 DRAM (256-kilobit) for the FAX100/570/615/625/635/675 4 DRAMs (256-kilobit) for the FAX575M/715M III –...

  • Page 27: 3 ] Image Processing Group

    [ 3 ] Image processing group Main PCB Circuit Diagram 3/4 1 Image processor (Image processing IC) 2 Connector for the CCD PCB 3 Recording head temperature detector and head connector 4 Motor driver and connector 5 Clutch solenoid connector 6 Document front sensor (photosensor) 7 Document rear sensor (photosensor) III –...

  • Page 28: 4 ] Analog Signal Processing Group

    [ 4 ] Analog signal processing group Main PCB Circuit Diagram 4/4 1 Analog front end IC Processes the analog I/O signals from/to the MODEM. 2 Main-NCU connector 3 Analog signal selectors 3-1: Selects either RL1 or RL2 signals inputted from the communications net- work.

  • Page 29: Fax725M/590Dt/590Mc/825Mc/875Mc

    3.2.2 FAX725M/590DT/590MC/825MC/875MC [ 1 ] Primary function group Main PCB Circuit Diagram 1/5 1 FAX engine (ASIC) which integrates a CPU and gate array. 2 Clock for CPU 3 Clock for calendar clock 4 ROM (2-megabit. Note that the sample machines for demonstration have a 4- megabit ROM.) PROM (16-kilobit in the FAX725M/590DT/590MC/825MC, 32-kilobit in the FAX875MC)

  • Page 30: 2 ] Dram Group

    [ 2 ] DRAM group Main PCB Circuit Diagram 2/5 1 DRAMs FAX725M: Two 256-kilobyte DRAMs FAX590DT/590MC/825MC/875MC: Two 512-kilobyte DRAMs 2 Calendar clock backup circuit (for the FAX725M) 3 DRAM backup circuit and nickel-hydrogen battery connector (for the FAX590DT/ 590MC/825MC/875MC) 4 DRAM refresh circuit (for the FAX590DT/590MC/825MC/875MC) 5 Reset IC III –...

  • Page 31: 3 ] Image Processing Group

    [ 3 ] Image processing group Main PCB Circuit Diagram 3/5 1 Image processor (Image processing IC) 2 Connector for the CCD PCB 3 Recording head temperature detector and head connector 4 Motor driver and connector 5 Clutch solenoid connector 6 Document front sensor (photosensor) 7 Document rear sensor (photosensor) III –...

  • Page 32: 4 ] Analog Signal Processing Group

    [ 4 ] Analog signal processing group Main PCB Circuit Diagram 4/5 1 Main-NCU connector 2 Analog signal selectors 2-1: Selects either RL1 or RL2 signals inputted from the communications net- work. 2-2: Selects either input signals from the handset or those from the MODEM. 2-3: Selects either sound signals (e.g.

  • Page 33: 5 ] Modem

    [ 5 ] MODEM Main PCB Circuit Diagram 5/5 1 MODEM 2 Clock for MODEM III – 20...

  • Page 34: Ncu Pcb

    NCU PCB The NCU PCB switches the communications line to telephone or built-in MODEM, under control of the main PCB. Also, it works as a power supply interface from the power supply unit to the main PCB and the recording head. As shown in the circuit diagrams on the next page, the NCU PCB consists of the compo- nents listed below: 1 Surge absorber...
  • Page 35 NCU Circuit Diagram III – 22...

  • Page 36: Control Panel Pcb

    Control Panel PCB The control panel PCB and the main PCB communicate with each other by serially transmit- ting commands and data. The control panel unit consists of a gate array, an LCD, and LEDs, which are controlled ac- cording to commands issued from the FAX engine on the main PCB. The calendar clock is backed up by the backup circuit on the main PCB.

  • Page 37: Power Supply

    Power Supply The power supply uses the switching regulation system to generate the required DC power (+5V and +26.6V) from the commercial AC power supply. The 26.6V power source is fed to the NCU PCB where the +26.6VH source is generated. The 26.6VH power source, which drives the recording head, outputs 26.6 VDC only when the 26.6V ON/OFF control signal sent from the main PCB turns High.
  • Page 38 CHAPTER IV. INDICATION AND INFORMATION PRINTOUT OF ERROR...
  • Page 39 CONTENTS INDICATION AND PRINTOUT OF ERROR ........... IV-1 EQUIPMENT ERROR ..................IV-1 2.1 Error Messages on the LCD ..............IV-1 2.2 Error Codes Shown in the “MACHINE ERROR xx” message ....IV-2 COMMUNICATIONS ERROR ................ IV-4 3.1 Definition of Error Codes on the Communications List ......IV-5...

  • Page 40: Indication And Printout Of Error

    1. INDICATION AND PRINTOUT OF ERROR To help the user or the service personnel promptly locate the cause of a problem (if any), the facsimile equipment incorporates the self-diagnostic functions which display error messages for equipment errors and communications errors. For the communications errors, the equipment also prints out the transmission verification re- port and the communications list.

  • Page 41: Error Codes Shown In The "Machine Error Xx" Message

    Messages on the LCD Probable Cause DOCUMENT JAM Document loading error (1) The document rear sensor detects no leading edge of a document within 10 seconds from the start of document loading operation. (The document rear sensor stays OFF even after the document has been fed when the document front sensor was ON.) (2) The loaded document is too short.
  • Page 42 Error Code Error factor (Hex.) Faulty operation of DMA0 during scanning. Faulty operation of DMA1 during scanning. One-line feeding time-out error. One-line scanning time-out error. Abnormal scanning reference voltage. Document feed-in amount measuring error. Less than 50% faulty of white level data. CODEC LSI error.

  • Page 43: Communications Error

    3. COMMUNICATIONS ERROR If a communications error occurs, the facsimile equipment (1) emits an audible alarm (intermittent beeping) for approximately 4 seconds, (2) displays the corresponding error message, and (3) prints out the transmission verification report if the equipment is in sending operation. Transmission Verification Report Sample IV –...

  • Page 44: Definition Of Error Codes On The Communications List

    Definition of Error Codes on the Communications List (1) Calling Code 1 Code 2 Causes Wrong number called. No dial tone detected before start of dialing. Busy tone detected before dialing. 2nd dial tone not detected. No loop current detected. * Busy tone detected after dialing or called.
  • Page 45 (3) Compatibility [checking the NSF and DIS] Code 1 Code 2 Causes Remote terminal only with V.29 capability in 2400 or 4800 bps transmission. Remote terminal not ready for polling Remote terminal not equipped with password function or its password switch OFF. Remote terminal not equipped with or not ready for confi- dential mail box function.
  • Page 46 (4) Instructions received from the remote terminal [checking the NSC, DTC, NSS, and DCS] Code 1 Code 2 Causes Illegal coding system requested. Illegal recording width requested. ECM requested although not allowed. Polled while not ready. No document to send when polled. Nation code or manufacturer code not coincident.
  • Page 47 (6) ID checking Code 1 Code 2 Causes Password plus (lower 4 digits of telephone number) not coincident. Password not coincident. Polling ID coincident. Entered confidential mail box ID uncoincident with the mail box ID. Relay broadcasting ID not coincident. Entered retrieval ID uncoincident with that of the mail box (7) DCN reception Code 1...
  • Page 48 (9) Signal isolation Code 1 Code 2 Causes Unable to detect video signals and commands within 6 seconds after CFR is transmitted. Received PPS containing invalid page count or block count. (10) Video signal reception Code 1 Code 2 Causes Error correction sequence not terminated even at the final transmission speed for fallback.
  • Page 49 (12) Maintenance mode Code 1 Code 2 Causes Failed to detect 1300 Hz signal in burn-in operation. Failed to detect PB signals in burn-in operation. Failed to detect any command from the RS-232C interface in burn-in operation. (13) Equipment error Code 1 Code 2 Causes...
  • Page 50 CHAPTER V. MAINTENANCE...
  • Page 51 CONTENTS DISASSEMBLY, REASSEMBLY, AND LUBRICATION ......... Safety Precautions ..................Preparation ....................V-2 How to Access the Object Component ............Disassembly Order Flow ................ROM Cover .................... V-4 Recording Paper Cover ................ Panel Cover ASSY ................Panel Rear Cover and Control Panel ............ Recorder &...
  • Page 52 3.3.5 Firmware switch setting and printout..........V-28 3.3.6 Operational check of control panel PCB ......... V-66 3.3.7 Sensor operational check ............... V-69 3.3.8 CCD scanner area setting ............... V-69 3.3.9 Equipment error code indication ............. V-70...

  • Page 53: Safety Precautions

    1. DISASSEMBLY AND REASSEMBLY Safety Precautions To prevent the creation of secondary problems by mishandling, observe the following pre- cautions during maintenance work. (1) Always turn off the power before replacing parts or units. When having access to the power supply, be sure to unplug the power cord from the power outlet. (2) Be careful not to lose screws, washers, or other parts removed for parts replacement.

  • Page 54: Preparation

    Preparation Prior to proceeding to the disassembly procedure, (1) Unplug the modular jack of the telephone line. (2) Unplug modular jacks of external telephone sets if mounted. (3) Unplug the modular jack of the curled cord and remove the handset. (See below.) (4) Remove the recording paper roll, the document wire-extension, and the receive wire- extension.

  • Page 55: Disassembly Order Flow

    Disassembly Order Flow V – 3...

  • Page 56: Rom Cover

    ROM Cover (1) Open the recording paper cover. (2) Turn up the head release lever. (3) Insert the tip of a flat screwdriver into slot “A” to release two pawls of the ROM cover from the main frame. (4) Lift up the ROM cover. Flat screwdriver Pawls Slot “A”...

  • Page 57: Panel Cover Assy

    Panel Cover ASSY (1) Disconnect the main-panel harness from the main PCB. (2) Slightly open the panel cover ASSY. (3) Push the right and left arms of the panel cover ASSY outwards with you thumbs as shown below to unhook them from the bosses provided on the main frame, then open the panel cover ASSY further.

  • Page 58: Panel Rear Cover And Control Panel

    Panel Rear Cover and Control Panel (1) Place the panel cover ASSY upside down. (2) Remove the ADF parts from the panel rear cover. (3) Remove the two screws. (4) Insert the tip of a flat screwdriver into the slot between the panel rear cover and control panel as shown below and unhook the panel rear cover from the 15 “x”...

  • Page 59: Recorder & Cutter Unit

    Recorder & Cutter Unit (1) Disconnect the main-head harness from the main PCB. (2) Remove the screw from the recorder & cutter unit. (3) Release the lock of the cutter link and pull out the upper blade shaft from it. (4) Pull up the recorder &...
  • Page 60 5) Turn down the left release lever. 6) Slide the left ACS catch towards you while pulling the lock “c” outwards. In the same way, remove the right ACS catch. ACS catch (R) Release lever (L) ACS catch (L) “c” 7) Remove the right bushing from the platen ASSY while releasing the two pawls “d.”...

  • Page 61: Lf Roller Assy

    Reassembly of recorder & cutter unit • When installing the platen ASSY to the cutter chassis, orient the left bushing as shown below. Then, fit the bushing into the cutter chassis from the left side while pressing down the platen and the recorder PCB. Platen Platen ASSY Bushing (L)

  • Page 62: Bottom Plate

    Bottom Plate (1) Place the machine upside down. (2) Remove the five screws. (3) Remove the bottom plate. Inside of the bottom plate Grounding terminal Bottom plate V – 10...

  • Page 63: Main Pcb, Ncu Pcb, And Power Supply Pcb

    Main PCB, NCU PCB, and Power Supply PCB (1) Disconnect the following seven harnesses from the main PCB as shown below: • Main-head harness (12-pin) • Main-panel harness (5-pin) • CCD harness (10-pin) • Speaker harness (2-pin) • Motor harness (6-pin) •...
  • Page 64 (2) Take off the AC cord bushing from the main frame. (3) Take out the main PCB, NCU PCB and power supply PCB. AC cord bushing Grounding plate (4) Disconnect the main PCB and power supply PCB from the NCU PCB. NCU PCB Power supply PCB SW1 (PE sensor)

  • Page 65: Scanner Frame Assy

    Scanner Frame ASSY (1) Remove the two screws. (2) Unhook the scanner frame ASSY from the two pawls provided on the main frame. (3) Lift up the scanner frame ASSY. NOTE: Never remove or replace the CCD PCB, CCD lens, mirrors, LED array or bar lens.

  • Page 66: Drive Unit

    NOTE: When accessing these components, take care not to scratch the mirrors, CCD lens, or bar lens. Mirrors 1.10 Drive Unit (1) Remove the two screws. (2) Lift up the drive unit. (3) To remove the motor, press the lock and turn the motor in the direction of the arrow as shown below.

  • Page 67: Handset Mount And Speaker

    1.11 Handset Mount and Speaker (1) Insert the tip of a 0.5-mm-wide ruler into the slots between the handset mount and the main frame and unhook the handset mount from the pawls provided on the main frame. (2) Slightly lift up the handset mount slightly and take it off to the left. Speaker harness Pawl...

  • Page 68: Lubrication

    Lubrication Apply two grains of grease (Molicoat EM-30) to each of the following lubrication points: (1) LF roller ASSY and grounding plates Grounding plate LF roller ASSY (2) Separation roller ASSY Scanner frame ASSY Separation roller ASSY V – 16...

  • Page 69: Troubleshooting

    2. TROUBLESHOOTING Introduction This chapter gives the service personnel some of the troubleshooting procedures to be fol- lowed if an error or malfunction occurs with the facsimile equipment. It is impossible to an- ticipate all of the possible troubles which may occur in future and determine the troubleshoot- ing procedures, so this chapter covers some sample troubles.
  • Page 70 Control panel related Trouble Action to be taken (1) LCD shows nothing. • Check the main-panel harness between the main PCB and the control panel. • Check the interfaces between the main PCB, NCU PCB and power supply PCB. • Check the control panel PCB. •...
  • Page 71 Trouble Action to be taken (3) Speaker silent during • Check whether the ordinary dialing function (other than the on- on-hook dialing. hook dialing with the hook key) works correctly or not. - If yes, proceed to the following checks: - If not, refer to item (1) above.
  • Page 72 Image related If the received or sent image has any trouble, first make a copy with the facsimile equipment. If the copied image is normal, the remote terminal is defective. If it is abnormal, proceed to the troubleshooting list given below: Trouble Action to be taken (1) All white images.
  • Page 73 Trouble Action to be taken (5) Faint/dark image. [At scanning side] • Check the LED array. • Check the main PCB. [At recording side] • Check that the compression springs beneath the recording head are set in place. (6) Improper image align- ment.
  • Page 74 Paper feeding related Trouble Action to be taken (1) Neither “COPY: • Check the document sensors according to the maintenance- PRESS COPY” nor mode function No. 32. (Refer to Section 3.) “FAX: NO. & START” message appears although documents are set. (2) Document not fed.

  • Page 75: Maintenance Mode

    3. MAINTENANCE MODE Entry into the Maintenance Mode To make the facsimile equipment enter the maintenance mode, press the FUNCTION , * , 2 , 8 , 6 , and 4 keys in this order. Within 2 seconds The equipment beeps for approx. 3 seconds and displays "MAINTENANCE" on the LCD, in- dicating that it is placed in the initial maintenance mode, a mode in which the equipment is ready to accept entry from the keys.
  • Page 76 Maintenance-mode Functions (2) Function Reference Function Code Subsection Sensor Operational Check 3.3.7 CCD Scanner Area Setting 3.3.8 Equipment Error Code Indication 3.3.9 PROM Parameter Initialization (except the telephone 3.3.1 number storage area) IMPORTANT - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Basically, the maintenance-mode functions listed above should be accessed by service per- sonnel only.

  • Page 77: Detailed Description Of Maintenance-Mode Functions

    FUNCTION key FINE PHOTO S.FINE AUTO RESOLUTION MODE RECORD ERASE PLAY MODE key S.VOLUME FUNCTION TEL-INDEX Q.SCAN COVER PAGE HELP A B C D E F HOOK COPY G H I J K L M N O STOP HOLD STOP key P R S T U V W X Y...

  • Page 78: Printout Of Scanning Compensation Data

    3.3.2 Printout of scanning compensation data Function The equipment prints out the white and black level data for scanning compensation. Operating Procedure Do not start this function merely after powering on the equipment but start it after carrying out a sequence of scanning operation. Unless the equipment has carried out any scanning operation, this function cannot print out correct scanning compensation data.

  • Page 79: Adf Performance Test

    3.3.3 ADF performance test Function The equipment counts the documents fed by the automatic document feeder (ADF) and dis- plays the count on the LCD for checking the ADF performance. Operating Procedure (1) Set documents. (Allowable up to the ADF capacity.) The "DOC.
  • Page 80 3.3.5 Firmware switch setting and printout [ A ] Firmware switch setting Function The facsimile equipment incorporates the following firmware switch functions (WSW01 through WSW34) which may be activated with the procedures using the control panel keys and buttons. The firmware switches have been set at the factory in conformity to the communications standards and codes of each country.
  • Page 81 Operating Procedure (1) Press the 1 and 0 keys in this order in the initial maintenance mode. The equipment displays the "WSW00" on the LCD and becomes ready to accept a firm- ware switch number. (2) Enter the desired number from the firmware switch numbers (01 through 34). The following appears on the LCD: WSWxx 0 0 0 0 0 0 0 0...
  • Page 82 Detailed Description for the Firmware Switches WSW01 (Dial pulse setting) Selector Function Setting and Specifications No. 1 Dial pulse generation mode 10-N No. 3 60 ms Break time length in pulse 67 ms (for 10 PPS) dialing 40 ms (for 16 PPS) 64 ms No.
  • Page 83 Selector 7: Switching between pulse (DP) and tone (PB) dialing, by the function switch This selector determines whether or not the dialing mode may be switched between the pulse (DP) and tone (PB) dialing by using the function switch. Selector 8: Default dialing mode, pulse (DP) or tone (PB) dialing This selector sets the default dialing mode (pulse dialing or tone dialing) which may be changed by the function switch.
  • Page 84 WSW03 (PABX* mode setting) Selector Setting and Specifications Function Not used. No. 2 50 ms 210 ms Min. detection time length of 500 ms PABX dial tone, required for 800 ms starting dialing 900 ms 1.5 sec. 2.0 sec. 2.5 sec. Not used.
  • Page 85 Selector 8: "R" key function This selector determines whether or not the 1st dial tone detection function (specified by se- lectors 1 through 3 of WSW05) is added to the R key. If this selector is set to "0", pressing the R key automatically activates the 1st dial tone detec- tion function when the PABX and the automatic calling are selected by using the function switch.
  • Page 86 WSW05 (1st dial tone and busy tone detection) Selector Function Setting and Specifications No. 1 3.5 sec. WAIT 7.0 sec. WAIT 10.5 sec. WAIT 14.0 sec. WAIT 1st dial tone detection 17.5 sec. WAIT 21.0 sec. WAIT 24.5 sec. WAIT Detection (Without WAIT) Max.
  • Page 87 Selectors 5 and 6: Busy tone detection in automatic sending mode These selectors determine whether or not the equipment automatically disconnects a line upon detection of a busy tone in automatic sending mode. Setting selector 6 to "0" ignores a busy tone so that the equipment does not disconnect the line.
  • Page 88 WSW06 (PAUSE key setting and 2nd dial tone detection) Selector Function Setting and Specifications No. 1 : No pause : 3.5 sec. WAIT : 7 sec. WAIT : 10.5 sec. WAIT : 14 sec. WAIT PAUSE key setting and 2nd dial : 17.5 sec.
  • Page 89 Selectors 4 through 6: Detection of international tone Upon detection of the 2nd dial tone for the time length specified by these selectors, the equipment starts dialing. This setting is effective only when the 2nd dial tone detection function is activated by selec- tors 1 through 3 (Setting 1, 1, 0 or 1, 1, 1).
  • Page 90 WSW07 (Dial tone setting 1) Selector Function Setting and Specifications No. 1 Narrows by 10 Hz Frequency band range Initial value Widens by 10 Hz Line current detection 0: No 1: Yes No. 4 -21 dBm -24 dBm -27 dBm 2nd dial tone detection level -30 dBm (Z = 600 )
  • Page 91 WSW08 (Dial tone setting 2) Selector Function Setting and Specifications No. 1 50 ms 210 ms 500 ms 1st dial tone detection time 800 ms length 900 ms 1.5 sec. 2.0 sec. 2.5 sec. No. 4 10 sec. Time-out length for 1st and 2nd 20 sec.
  • Page 92 WSW09 (Protocol definition 1) Selector Function Setting and Specifications Frame length selection 0: 256 octets 64 octets Not used. No. 3 4 times No. of retries 3 times 2 times 1 time T5 timer 0: 300 sec. 1: 60 sec. T1 timer 0: 35 sec.
  • Page 93 WSW10 (Protocol definition 2) Selector Function Setting and Specifications Switching of DPS, following the 0: No 1: Yes CML ON/OFF Time length from transmission 0: 100 ms 1: 50 ms of the last dial digit to CML ON Time length from CML ON to 0: 2 sec.
  • Page 94 WSW11 (Busy tone setting) Selector Function Setting and Specifications No. 1 Narrows by 10 Hz Frequency band range Initial value Widens by 10 Hz Not used. 1: 400-600/400-600 ms 1: 175-440/175-440 ms ON/OFF time length ranges 1: 700-800/700-800 ms (More than one setting allowed) 1: 110-410/320-550 ms 1: 100-660/100-660 ms NOTE: The WSW11 is not applicable in those countries where no busy tone detection is sup-...
  • Page 95 WSW12 (Signal detection condition setting) Selector Function Setting and Specifications No. 1 300 ms Min. OFF time length of calling 500 ms signal (Ci) 700 ms 900 ms No. 3 6 sec. Max. OFF time length of calling 7 sec. signal (Ci) 9 sec.
  • Page 96 WSW13 (Modem setting) Selector Function Setting and Specifications No. 1 0 km 1.8 km Cable equalizer 3.6 km 5.6 km No. 3 : -43 dBm Reception level (Z = 600 : -47 dBm : -49 dBm : -51 dBm 0: 0 dB 1: 8 dB 0: 0 dB 1: 4 dB...
  • Page 97 WSW14 (AUTO ANS facility setting) Selector Function Setting and Specifications No. 1 13 Hz Frequency band selection 15 Hz (Lower limit) 23 Hz 20 Hz No. 3 30 Hz Frequency band selection 55 Hz (Upper limit) 70 Hz 70 Hz No.
  • Page 98 WSW15 (REDIAL facility setting) Selector Function Setting and Specifications No. 1 5 minutes Selection of redial interval 1 minutes 2 minutes 3 minutes No. 3 16 times 1 time No. of redialings 2 times 3 times 15 times Not used. Selectors 1 through 6: Selection of redial interval and No.
  • Page 99 WSW16 (Function setting 1) Selector Setting and Specifications Function Automatic cutter 0: ON 1: OFF CCITT superfine recommendation 0: OFF 1: ON 0: Only from the 1: From all connected telephones Remote reception external connected telephone Not used. Exclusive line mode 0: OFF 1: ON Max.
  • Page 100 WSW17 (Function setting 2) Selector Function Setting and Specifications No. 1 No alarm Always valid Off-hook alarm Valid except when ‘call reservation’ is selected. Power failure report output 0: ON 1: OFF Clock/prompt alternate 0: OFF 1: ON indication on the LCD Calendar clock type 0: USA type 1: European type...
  • Page 101 WSW18 (Function setting 3) Selector Function Setting and Specifications Fixed to 1. CCD manufacturer setting Not used. ACS* check sheet output 0: Operative 1: Inoperative function on/off key ACS* check sheet output 0: ON 1: OFF function 0: Permitted 1: Prohibited Registration of station ID No.
  • Page 102 WSW19 (Transmission speed setting) Selector Function Setting and Specifications No. 1 No. 4 First transmission speed choice 2,400 bps for fallback 4,800 bps 7,200 bps 9,600 bps 12,000 bps Last transmission speed choice for fallback 14,400 bps Not used. * 9,600 bps for the FAX100/570/615/625/635/675/575M/715M Selectors 1 through 6: First and last choices of transmission speed for fallback These selectors are used to set the MODEM speed range.
  • Page 103 WSW20 (Overseas communications mode setting) Selector Function Setting and Specifications EP* tone prefix 0: OFF Overseas communications mode 0: 2100 Hz 1100 Hz (Reception) Overseas communications mode 0: OFF 1: Ignores DIS once. (Transmission) No. 4 Min. time length from reception 100 ms of CFR to start of transmission of 200 ms...
  • Page 104 WSW21 (TAD setting 1) Selector Function Setting and Specifications No. 1 0 : No detection 1 : 1 sec. 0 : 2 sec. Max. waiting time for voice signal 1 : 3 sec. 0 : 8 sec. 1 : 31 sec. No.
  • Page 105 WSW23 (Communications setting) Selector Setting and Specifications Function 0: From the head of a series of zeros Starting point of training check (TCF) 1: From any arbitrary point No. 2 Allowable training error rate 0.5% No. 4 Decoding error rate for transmission of RTN Not used.
  • Page 106 WSW24 (TAD setting 2) Selector Setting and Specifications Function No. 1 15 sec. 20 sec. Maximum OGM recording time 30 sec. 50 sec. No. 3 4 sec. Time length from CML ON to 3 sec. start of pseud ring backtone 2 sec.
  • Page 107 WSW25 (TAD setting 3) Selector Function Setting and Specifications Not used. No. 5 2 seconds 4 seconds Pause between paging number and PIN 16 seconds Automatic shift to facsimile message receive mode in ICM 0: YES 1: NO recording mode Selectors 5 and 7: Pause between paging number and PIN (For those models equipped with a built-in TAD) These selectors set the pause time between paging telephone number and PIN (private...
  • Page 108 WSW26 (Function setting 4) Selector Function Setting and Specifications Not used. No. 4 No. of CNG cycles to be detected No detection (when the line is connected via the external telephone except in the external TAD mode) No. of CNG cycles to be detected No.
  • Page 109 WSW27 (Function setting 5) Selector Function Setting and Specifications Not used. Ringer OFF setting 0: YES 1: NO Automatic playback of OGM at 0: NO 1: YES the start time of OGM ON mode Detection of distinctive ringing 0: NO 1: YES pattern Automatic erasion of voice alarm...
  • Page 110 WSW28 (Function setting 6) Selector Function Setting and Specifications No. 1 0 dB +1 dB +2 dB Transmission level of DTMF +3 dB high-band frequency signal 0 dB –1 dB –2 dB –3 dB No. 4 0 dB +1 dB +2 dB Transmission level of DTMF +3 dB...
  • Page 111 WSW29 (Function setting 7) Selector Function Setting and Specifications No. 1 -47.0 dBm -48.5 dBm Compression threshold level for -50.0 dBm voice signals inputted via the -51.5 dBm network in the built-in TAD -53.0 dBm operation -54.5 dBm -56.0 dBm No.
  • Page 112 WSW30 (Function setting 8) Selector Function Setting and Specifications No. 1 -38.0 dBm -39.5 dBm -41.0 dBm Detection level of dial tone or -42.5 dBm busy tone for the built-in TAD operation -44.0 dBm -45.5 dBm -47.0 dBm -48.5 dBm Sampling rate when the record- 0: Short 1: Long...
  • Page 113 WSW31 (Function setting 9) Selector Function Setting and Specifications Not used. Minimum short-OFF duration in 0: 130 ms 1: 90 ms distinctive ringing Not used. Selector 5: Minimum short-OFF duration in distinctive ringing The ringer pattern consists of short and long rings, e.g. short-short-long rings. This selector sets the minimum OFF duration following a short ring in order to avoid missing ringer tones in distinctive ringing.
  • Page 114 WSW32 (Function setting 10) Selector Function Setting and Specifications Not used. No. 5 Standard Default resolution Fine Super fine Photo No. 7 Automatic Default contrast Super light Super dark Selectors 5 and 6: Default resolution When the equipment is powered up or completes a transaction, the resolution returns to the default value specified by these selectors.
  • Page 115 WSW33 (Function setting 11) Selector Function Setting and Specifications No. 1 -42.5 dBm -44.0 dBm Detection threshold level for -45.5 dBm voice signals inputted via the -47.0 dBm network in the built-in TAD -48.5 dBm operation -50.0 dBm -51.5 dBm -53.0 dBm No.
  • Page 116 WSW34 (Function setting 12) Selector Function Setting and Specifications No. 1 0 second ICM recording time to be erased 1 second preceding the tone detection 2 seconds when the equipment automatically 3 seconds disconnects the line because no 4 seconds voice signal has been received 5 seconds 6 seconds...
  • Page 117 [ B ] Printout of firmware switch data Function The equipment prints out the setting items and contents specified by the firmware switches. Operating Procedure (1) Press the 1 key twice in the initial maintenance mode. The "CONFIG LIST" will appear on the LCD. (2) The equipment prints out the configuration list as shown in the figure below.
  • Page 118 3.3.6 Operational check of control panel PCB Function This function checks the control panel PCB for normal operation. Two types of check modes are available: Key & button operation check mode and LED operation check mode. Operating Procedure [ a ] Key & button operation check mode (1) Press the 1 and 3 keys in this order in the initial maintenance mode.
  • Page 119 FAX575M/715M FINE PHOTO S.FINE AUTO RESOLUTION MODE FUNCTION TEL-INDEX Q.SCAN COVER PAGE HELP A B C D E F HOOK COPY G H I J K L M N O STOP HOLD P R S T U V W X Y START REDIAL/PAUSE SPEED DIAL...
  • Page 120 FAX875MC FINE PHOTO S.FINE AUTO RESOLUTION MODE RECORD ERASE PLAY S.VOLUME FUNCTION TEL-INDEX Q.SCAN COVER PAGE HELP A B C D E F HOOK COPY G H I J K L M N O STOP HOLD P R S T U V W X Y START REDIAL/PAUSE...
  • Page 121 3.3.7 Sensor operational check Function This function allows you to check that the six sensors (document front sensor, document rear sensor, cover sensor, PE sensor, cutter sensor and hook switch sensor) operate correctly. The LCD shows the "FRE RC PE CH HK" when - the document front and rear sensors detect no paper (FRE), - the recording paper cover is closed (RC), - the PE sensor detects paper loaded (PE),...
  • Page 122 3.3.9 Equipment error code indication Function This function displays an error code of the last error on the LCD. Operating Procedure (1) Press the 8 and 2 keys in this order in the initial maintenance mode. The LCD shows "MACHINE ERROR xx." (2) To stop this operation and return the equipment to the initial maintenance mode, press the STOP button.
  • Page 123 FAX100/570/615/625/635/675/575M/715M FAX725M/590DT/590MC/825MC/875MC APPENDICES Circuit Diagrams A. Main PCB FAX100/570/615/625/635/675/575M/715M FAX725M/590DT/590MC/825MC/875MC B. Network Control Unit (NCU) PCB C. Control Panel PCB D. Power Supply PCB...

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