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Brother FAX1170 Service Manual

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Table of Contents
FACSIMILE EQUIPMENT
SERVICE MANUAL
MODEL: FAX1170/1270/1570MC
FAX1010/1020/1030
MFC1770/1870MC/1970MC

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  Summary of Contents for Brother FAX1170

  • Page 1 FACSIMILE EQUIPMENT SERVICE MANUAL MODEL: FAX1170/1270/1570MC FAX1010/1020/1030 MFC1770/1870MC/1970MC...
  • Page 2 © Copyright Brother 1997 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 and Weight ............1.2 Components .................... I-1 SPECIFICATIONS ..................I-2...
  • Page 6: Components

    1. EQUIPMENT OUTLINE External Appearance and Weight The figure below shows the equipment appearance and approximate dimensions. (Unit: mm) 213 (H) 385 (D) * 317 mm for FAX1010 which has no handset mount 385.5 (W)* Weight: Machine proper FAX1010: Approx. 5.0 kg (excluding a ribbon cartridge) Other models: Approx.
  • Page 7: Model

    2. SPECIFICATIONS Model FAX1170 FAX1270 FAX1570MC Color Gray (1395) White (1397) White (1397) Modem Speed 9600 bps 9600 bps 14400 bps CCITT Group Coding Method Transmission Speed 15 sec. 15 sec. 9 sec. Input/Output Width 8.5"/8.5" 8.5"/8.5" 8.5"/8.5" ADF Capacity (pages)
  • Page 8: Model

    Model FAX1010 FAX1020 FAX1030 Color White (1138) White (1138) White (1138) Modem Speed 9600 bps 9600 bps 14400 bps CCITT Group Coding Method Transmission Speed 15 sec. 15 sec. 10 sec. Input/Output Width A4/A4 A4/A4 A4/A4 ADF Capacity (pages) Recording Paper Loadable 200 sheets 200 sheets 200 sheets...
  • Page 9: Table Of Contents

    Model MFC1770 MFC1870MC MFC1970MC Color White (1138) White (1138) White (1138) Modem Speed 9600 bps 14400 bps 14400 bps CCITT Group Coding Method Transmission Speed 15 sec. 9 sec. 9 sec. Input/Output Width 8.5"/8.5" 8.5"/8.5" 8.5"/8.5" ADF Capacity (pages) Recording Paper Loadable 200 sheets 200 sheets 200 sheets...
  • Page 10: Color

    CHAPTER II. INSTALLATION...
  • Page 11: Color

    CHAPTER III. THEORY OF OPERATION...
  • Page 12: Color

    CONTENTS OVERVIEW ..................... III-1 1.1 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-3 2.2 Receiving Mechanism (Feeding paper and printing data) ...... III-4 2.3 Power Transmission Mechanism ............
  • Page 13: Overview

    1. OVERVIEW Functional Block Diagram Document Ribbon cartridge Control Panel Recorder ejection tray Recording head Modular PCB To PC (Cover sensor) Ribbon sensor Scanner Main PCB (Document front and rear sensors) CIS unit Main frame NCU PCB Line Motor Power supply Sensor PCB (Paper-edge sensor and paper...
  • Page 14: Mechanisms

    2. MECHANISMS The equipment is classified into the following mechanisms: Transmitting Mechanism Feeding and scanning documents Receiving Mechanism Feeding paper and printing data Power Transmission Mechanism Switching the power transmission route Sensors and Actuators 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.
  • Page 15: Scanner

    2.1.2 Scanner The scanner uses a contact image sensor (CIS) unit which consists of an LED array illumi- nating documents, a self-focus lens array collecting the reflected light, a CIS PCB carrying out photoelectric conversion to output picture element data, and a cover glass on which a document advances.
  • Page 16: Receiving Mechanism (Feeding Paper And Printing Data)

    Receiving Mechanism (Feeding paper and printing data) The receiving mechanism consists of the recording paper cover ASSY, paper feed roller ASSY, platen, thermal recording head, paper ejection roller, and sensors. (For details about the sensors, refer to Section 2.4.) Paper Paper feed roller ASSY Chute ASSY Recording...
  • Page 17: Power Transmission Mechanism

    Power Transmission Mechanism The equipment has a single drive motor whose power transmission route can be switched by the planetary gear systems and the solenoid. This switching allows the equipment to func- tion in four operation modes (scanning, paper feeding/ejecting, recording, and copying modes).
  • Page 18: Description Of Planetary Gear System

    2.3.2 Description of planetary gear system The equipment uses the following three planetary gear systems: - Sun gear 20/90 ("B" in the figure given on the previous page) and its planet gears - Sun gear 36/27 ("N") and its planet gear - Sun gear 39/24 ("R") and its planet gear This section describes the planetary gear system of the sun gear 20/90 ("B").
  • Page 19: Power Transmission For Four Operation Modes

    2.3.3 Power transmission for four operation modes Depending upon the solenoid ON/OFF state and the motor rotation direction, the planetary gear train switches the power transmission route for the four operation modes. Solenoid ON/OFF state Motor rotation direction Solenoid: OFF Forward Section y (to block the Reverse...
  • Page 20: 1 ] Scanning Mode (Solenoid: Off, Motor Rotation: Reverse)

    [ 1 ] Scanning mode (Solenoid: OFF, Motor rotation: Reverse) In the scanning mode, the control electronics deactivates the solenoid. When the motor ro- tates in the reverse direction, the clutch lever turns counterclockwise with the spring so that its cutout x becomes engaged with the stopper of arm A. Once arm A is locked, the planet gear 20A ("L") will not be engaged with any other gear but simply idle.
  • Page 21: Color

    [ 2 ] Paper feeding/ejecting mode (Solenoid: ON, Motor rotation: Reverse) In the paper feeding/ejecting mode, the control electronics activates the solenoid to release the stopper of arm A. When the motor rotates in the reverse direction, the sun gear 20/90 ("B") rotates clockwise so that the planet gear 20A ("L") transmits the torque via the gear 39 ("M") and other gears to the paper feed roller gear ("T") and paper ejection roller gear ("X").
  • Page 22: Color

    [ 3 ] Recording mode (Solenoid: OFF, Motor rotation: Forward) In the recording mode, the control electronics deactivates the solenoid. When the motor ro- tates in the forward direction, the clutch lever turns counterclockwise with the spring so that its cutout x becomes engaged with the stopper of arm A. Once arm A is locked, the planet gear 20A ("L") will not be engaged with any other gear but simply idle.
  • Page 23: Color

    Platen frame f (Ribbon take-up gear in the ribbon cartridge) b (Gear 33RB) (Front) Friction torque Ribbon transmission drive gear Main frame ASSY (Gear 46) (Gear 24) Active Gears on the Right Side III – 11...
  • Page 24: Color

    [ 4 ] Copying mode (Solenoid: ON, Motor rotation: Forward) The control electronics activates the solenoid to release the stopper of arm A from the clutch lever. When the motor rotates in the forward direction, the sun gear 20/90 ("B") rotates counterclockwise so that the planet gear 20A ("L") transmits the torque to the document scanner mechanism (e.g., the separation roller gear ("F"), white pressure roller gear ("I") and document ejection roller gear ("K")) and the planet gear 20B ("C") transmits the torque to the...
  • Page 25: Color

    Platen frame f (Ribbon take-up gear in the ribbon cartridge) b (Gear 33RB) (Front) Friction torque Ribbon transmission drive gear Main frame ASSY (Gear 46) (Gear 24) Active Gears on the Right Side III – 13...
  • Page 26: Color

    2.3.4 Power transmission route Rotation of the motor gear is transmitted as shown below. Gears on the Left Side Gears on the Right Side A: Motor gear Q: Gear 33 B: Sun gear 20/90 R: Sun gear 39/24 C: Planet gear 20B S: Planet gear 34 D: Gear 33 T: Paper feed roller gear...
  • Page 27: 3 ] Recording Mode (Solenoid: Off, Motor Rotation: Forward)

    [ 3 ] Recording Mode (Solenoid: OFF, Motor rotation: forward) (Platen) (Ribbon take-up gear) (Motor) (Paper ejection roller) (Idling) (Paper feed roller, Idling) [ 4 ] Copying Mode (Solenoid: ON, Motor rotation: forward) (Platen) (Ribbon take-up gear) (Paper ejection roller) (Motor) (White pressure roller) (Paper feed...
  • Page 28: Sensors And Actuators

    Sensors and Actuators This equipment has four photosensors and three mechanical switches (two for the FAX1010) as described below. Sensor name Type Located on Document front sensor Photosensor (PH1) Main PCB Document rear sensor Photosensor (PH2) Main PCB Paper ejection sensor Photosensor (PH1) Sensor PCB Paper-edge sensor...
  • Page 29: Color

    (Front) Document rear sensor Main PCB Document rear sensor actuator Document front sensor Document front sensor actuator Paper-edge sensor actuator Paper-edge sensor Paper ejection sensor actuator Paper ejection sensor Front cover sensing actuator (Front) Sensor PCB Recording head Ribbon sensor Ribbon sensor actuator Location of Sensors and Actuators (1) III –...
  • Page 30: Color

    Cover sensor actuator Cover sensor Cover sensor lever Modular PCB Hook switch sensor actuator** Hook switch sensor** Hook switch PCB** Handset mount* Location of Sensors and Actuators (2) * Not provided on the FAX1010 ** Not provided on the FAX1010 or those versions equipped with a Binatone handset III –...
  • Page 31: Control Electronics

    3. CONTROL ELECTRONICS Configuration The hardware configuration of the facsimile equipment is shown below. Line External telephone (Note) 2-pin 2-pin 12-pin: U.S.A. versions Handset* 18-pin: European versions 4-pin NCU PCB (Note) 14-pin Control Main PCB Modular PC I/F 8-pin panel PCB 5-pin Speaker 2-pin...
  • Page 32: Main Pcb

    Main PCB The main PCB, which is the nucleus controlling the entire operation of the equipment, con- sists of a FAX engine (ASIC), memories, MODEM, motor drive circuitry, sensor detection cir- cuitry, and analog circuits for scanning, recording, and power transmission shifting. Control panel PROM Recording head...
  • Page 33: Color

    + 5 V R H 5 V A 4 3 R S T L 1 6 A , 4 7 B , 1 4 B , 5 7 E R 9 0 T 7 D 6 0 1 . 5 K V C C O U T R S T...
  • Page 34: Color

    9 ROM (2-megabit. Note that the qualification machines for demonstration have a 4- megabit ROM.) : DRAMs (1-megabyte, two 4-megabit chips) provided on the FAX1570MC/1030/ MFC1970MC. A DRAM (512-kilobyte) provided on the MFC1870MC. The FAX1170/1270/1010/1020/ MFC1770 has its equivalent DRAM on location #7. III – 22...
  • Page 35: Color

    DC component of video signals for the next scan line. Working with the FAX engine, this circuitry carries out the standard scanning. (This circuitry is provided on the FAX1170/1270/1010/1020/MFC1770/1870MC.) SANYO LSI that carries out the high-quality scanning. (Provided on the FAX1570MC/1030/...
  • Page 36: Color

    C 2 0 C C 6 8 1 R 2 6 7 5 K C 2 5 C C 2 2 1 # 1 5 T E L L 1 5 C R 2 3 5 6 K T C 3 5 1 3 3 F C N T R 6 5 N C U...
  • Page 37: Color

    9 Connector for the speaker : Speaker volume control circuit :-1: VOL1 :-2: VOL2 :-3: VOL3 Speaker volume High Medium (ON: Closed OFF: Opened) III – 25...
  • Page 38: Color

    R 5 5 7 5 K C 3 5 C C 2 2 1 # 1 6 T C 3 5 1 3 3 F R 5 6 5 6 K R 4 8 5 6 K D M K T B U S 1 4 D T X O U T...
  • Page 39: Ncu Pcb

    NCU PCB The NCU PCB switches the communications line to telephone or built-in MODEM, under the control of the main PCB. + 2 6 V C R 1 M Z F - 2 4 H G C M L O U A Z - S S - 1 2 4 D R A 3 5 1 X 2 N C U S L S 0 V...
  • Page 40: Color

    J P 8 ( 5 ) A - O U T R D P S R 6 5 J P 1 1 ( 1 0 ) J P 2 7 ( C ) C 3 7 T E L O F F 1 C C 3 3 3 L I N E J P 2 2 ( 1 0 )
  • Page 41: Control Panel Pcb

    The control panel unit consists of a gate array, an LCD and LEDs (not provided on the FAX1170/1270/1010/1020/MFC1770), which are controlled by the gate array according to commands issued from the FAX engine on the main PCB.
  • Page 42: Power Supply Pcb

    Power Supply PCB The power supply uses the switching regulation system to generate DC power (+25V and +8V) from a commercial AC power supply. The +25V source is stabilized and fed to the motor and solenoid for feeding documents and recording paper, the main PCB, and also fed to the CIS LED array.
  • Page 43: Color

    CHAPTER IV. DISASSEMBLY/REASSEMBLY AND LUBRICATION...
  • Page 44: Color

    CONTENTS DISASSEMBLY/REASSEMBLY ..............IV-1 Safety Precautions ..................IV-1 Tightening Torque List ................IV-2 Preparation ....................IV-3 How to Access the Object Component ............IV-3 Disassembly Order Flow ................IV-4 Recording Head ASSY ................IV-5 Recording Paper Cover ASSY .............. IV-8 Platen .....................
  • Page 45: Disassembly/Reassembly

    1. DISASSEMBLY/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 46: Tightening Torque List

    Tightening Torque List Location Screw type Q'ty Tightening torque (kgf•cm) 7 ±2 Recording head ASSY Screw, cup S 3x6 7 ±2 Recording paper cover ASSY Taptite, cup S 3x8 5 ±2 Chute ASSY Taptite, cup S 3x8 5 ±2 Paper feed chute Taptite, cup S 3x8 4 ±2 Panel rear cover...
  • Page 47: Preparation

    Preparation Prior to proceeding to the disassembly procedure, (1) Unplug - the modular jack of the telephone line, - the modular jack of the curled cord (and remove the handset), - the BT modular jack adapter if mounted, and - the modular jack of an external telephone set if mounted. (Not shown below.) (2) Remove - the paper wire extension, - the paper support,...
  • Page 48: Disassembly Order Flow

    Disassembly Order Flow IV – 4...
  • Page 49: Color

    Recording Head ASSY (1) Push the open button and fully open the recording paper cover ASSY. Open button Recording paper cover ASSY (2) As shown below, insert the tip of a flat screwdriver into the square hole and release the hook "x"...
  • Page 50: Color

    (5) Disconnect the main-head harness from the main PCB. (6) Lift up the recording head ASSY. Lock of relay connector Head-power harness Recording head ASSY Main-head harness Head-power harness FAX1170/1270/1010/1020/MFC1770 FAX1570MC/1030/MFC1870MC/1970MC Main-head (NCU (NCU connector) harness connector) Main-head harness (Modular (Modular...
  • Page 51: Color

    (7) To disassemble the recording head ASSY, follow the steps below. 1) Remove the head protection plate by unhooking the two latches. 2) Turn the recording head ASSY upside down and release the head-power harness from the adhesive tape. 3) Place the recording head ASSY rightside up. 4) Push down both ends of the recording head and move it to the rear to release the tabs from the cutouts provided in the recorder frame as shown below.
  • Page 52: Color

    Recording Paper Cover ASSY (1) Pull the paper front cover towards you. (2) To remove the A4 paper guides, insert the tip of a flat screwdriver as shown below and twist it to release two latches of each paper guide from the recording paper cover. NOTE: Once removed, those paper guides will become unusable and new parts will have to be put back in.
  • Page 53: Platen

    Platen (1) At the left end of the platen, remove the platen gear (Gear 23) by pulling its pawl out- wards and then remove the bushing. (2) At the right end, remove the gear 33RB by pulling its pawl outwards and then remove the bushing.
  • Page 54: Color

    Lock Levers and Their Shaft (1) At each end of the lock lever shaft, release the lock spring from the lock lever and the platen frame. (2) Turn the lock lever R clockwise (when viewed from the right side) and pull it out from the shaft.
  • Page 55: Chute Assy

    Chute ASSY (1) Remove the two screws. (2) Move the chute ASSY to the left to release tab "a" from the platen frame, pull the chute ASSY towards you, and take it out. Chute ASSY Platen frame Tab "a" Tab "b" Chute ASSY Tab "a"...
  • Page 56: Color

    Paper Feed Roller ASSY and Paper Feed Sub Chute (1) Remove the front cover sensing actuator from the paper feed roller shaft by pulling up the actuator's rear edge as shown below. Front cover sensing actuator Paper feed roller ASSY (Front) Pull up here to remove.
  • Page 57: Color

    (4) At the either end of the paper feed sub chute, release the latch from the paper feed chute with a flat screwdriver as illustrated below, and then pull up the paper feed sub chute. Paper feed sub chute Sub chute Latch film Paper feed...
  • Page 58: Color

    • When setting the paper feed roller ASSY at the left side of the platen frame, turn up the planet gear 34 of the arm P ASSY so that the planet gear 34 comes above the sun gear 39/24 and becomes engaged with the paper feed roller gear (Gear 55), as illustrated be- low.
  • Page 59: Paper Feed Chute, Sensor Pcb, And Paper-Edge And Paper Ejection Sensor Actuators

    Paper Feed Chute, Sensor PCB, and Paper-edge and Paper Ejection Sensor Actuators (1) Remove the two screws. (2) Remove the sensor PCB by releasing the two latches. (3) Disconnect the main-sensor harness from the sensor PCB. (4) Pull up the lead wires of the main-sensor harness out of the sheath, and then take out those wires (not the sheathed section) from the clamp of the paper feed chute.
  • Page 60: Color

    Remove the paper-edge sensor actuator by pulling the support "x" outwards. Remove the paper ejection sensor actuator by pushing the hook "y" from the rear of the paper feed chute. Paper ejection sensor actuator Paper ejection sensor (PH1) Paper-edge sensor (PH2) Latch Paper-edge sensor Sensor...
  • Page 61: Paper Ejection Roller

    Paper Ejection Roller (1) At the left end of the paper ejection roller (when viewed from the rear), remove the bushing by pulling its pawls outwards. (2) At the right end, remove the paper ejection roller gear (Gear 40) by pulling its pawl out- wards.
  • Page 62: Color

    Gears on the Platen Frame Paper ejection roller gear (Gear 40) Gears 18/41 Platen frame Clutch gear ASSY Paper feed roller gear Planet gear 34 of the arm P ASSY Sun gear 39/24 W (Clutch X (Paper ejection roller gear ASSY) (Gears 18/41) gear, Gear 40) T (Paper feed roller gear, Gear 55)
  • Page 63: Color

    1.10 Control Panel ASSY (1) Remove the ROM cover, referring to Section 1.1, steps (1) and (2). (2) Disconnect the main-panel harness and the main-mike harness (for the FAX1570MC/ 1030/MFC1870MC/1970MC) from the main PCB. (3) Slightly open the control panel ASSY as shown below. (4) Push the right and left arms of the control panel ASSY outwards with your thumbs to unhook them from the bosses provided on the inner cover, then slide the control panel ASSY to the rear.
  • Page 64: Color

    FAX1570MC/1030/MFC1870MC/1970MC FAX1170/1270/1010/1020/MFC1770 Main-panel (NCU Main-mike harness (NCU connector) connector) harness Main-panel harness (Modular PCB connector) (Modular connector) Main PCB Main PCB (Front) (Front) Reassembling Notes • After installation, check the routing of the main-panel harness and the main-mike harness (only for the FAX1570MC/1030/MFC1870MC/1970MC), referring to Section 1.29.
  • Page 65: Color

    (6) To take out the control panel PCB and the FPC key, unhook the PCB from the two latches ("Y" on the FAX1170/1270/1010/1020/MFC1770, "Z" on the FAX1570MC/1030/ MFC1870MC/1970MC) on the control panel. Unlock the LCD cable connector and dis- connect the LCD flat cable.
  • Page 66: Color

    (8) To take out the LCD, remove the control panel PCB and the FPC key in step (6). As shown below, insert the tip of a flat screwdriver under clamp "D" in the direction of arrow F and push up clamp "D" slightly to release the LCD from clamp "C." In the same way, insert the screwdriver under clamp "A"...
  • Page 67: Inner Cover

    1.12 Inner Cover (1) Remove the four screws. (2) While lifting up the inner cover, release the five latches with the tip of a flat screwdriver. 5 latches Inner cover IV – 23...
  • Page 68: Color

    To remove the bushing L, take off the white pressure gear by pulling its pawl outwards. White pressure roller Bushing R White pressure roller gear Bushing L Pull here towards you. (2) Disconnect the CIS harness from the main PCB. FAX1170/1270/1010/1020/MFC1770 FAX1570MC/1030/MFC1870MC/1970MC (NCU (NCU connector) connector) (Modular PCB connector)
  • Page 69: Color

    (3) Tilt the CIS unit towards you to release the rear latches from the main frame, and the CIS unit comes off. Rear latch CIS holder Front latch CIS harness CIS unit Leaf spring (4) Remove the CIS holders R and L as shown below. CIS holder, R CIS holder, L CIS unit...
  • Page 70: Handset Mount

    1.14 Handset Mount (for models except the FAX1010) Side Cover (for the FAX1010) (1) Disconnect the hook switch harness* from the main PCB. (2) Remove the two screws from the handset mount* or the side cover**. (3) Twist the handset mount* or the side cover** so that it tilts over to the left and its upper end works out of the bosses provided on the side cover L.
  • Page 71: Color

    1.15 Side Covers R and L (1) Lift up the front of the side cover R and take it out. (2) Disconnect the main-sensor harness from the main PCB, and then lift up the front of the side cover L and take it out together with the main-sensor harness. Platen frame Side cover L...
  • Page 72: Color

    FAX1170/1270/1010/1020/MFC1770 FAX1570MC/1030/MFC1870MC/1970MC (NCU connector) (NCU connector) Main- Main- sensor sensor harness harness (Modular (Modular connector) connector) Main PCB Main PCB (Front) (Front) IV – 28...
  • Page 73: Color

    (2) For the FAX1570MC/1030/MFC1870MC/1970MC, disconnect the battery harness from the main PCB and pull up the battery. Speaker Document Speaker harness front sensor actuator Battery Battery harness (Provided on the FAX1570MC/1030/ MFC1870MC/1970MC) FAX1170/1270/1010/1020/MFC1770 FAX1570MC/1030/MFC1870MC/1970MC (NCU connector) (NCU connector) (Modular Speaker (Modular connector) harness Speaker connector)
  • Page 74: Document Front Sensor Actuator

    1.17 Document Front Sensor Actuator (1) As shown below, push down the latch of the right end of the document front sensor ac- tuator to release it from the hole provided in the main frame, move it to the left, and then lift it up.
  • Page 75: Main Frame

    NOTE: Unhook the motor harness and its ferrite core from the bosses provided on the main cover. (5) Disconnect the relay connector of the head-power harness. NOTE: To disconnect the relay connector, push the lock of the relay connector to re- lease. FAX1170/1270/1010/1020/MFC1770 Head-power harness (Relay Power-main harness connector) Main-head harness...
  • Page 76: Solenoid

    FAX1570MC/1030/MFC1870MC/1970MC Head-power harness (Relay Power-main harness connector) Main-head harness Ferrite core T-shaped boss Motor harness Solenoid harness Motor Main PCB (Front) (6) Remove four screws "b" and lift up the main frame. "b" Main frame Main cover Reassembling Notes • Route the motor harness and hook its ferrite core on the main frame as illustrated on the previous page or this page.
  • Page 77: Color

    1.19 Separation Roller, its Support, and Document Rear Sensor Actuator (1) At the left side of the main frame, remove the spring and pull out the clutch lever by pulling its pawl outwards. (2) Remove the gear 20/40, and then remove the gear 33 by pulling its pawl outwards. (3) Pull the latch towards you and pull out the separation roller gear to the left, and the separation roller comes off.
  • Page 78: Color

    (5) To remove the document rear sensor actuator, push down the latch of its right end to release it from the hole provided in the main frame, move it to the left, and then take it out. Document rear sensor actuator Push here.
  • Page 79: Color

    1.20 Document Ejection Roller and CIS Leaf Spring (1) To remove the document ejection roller, pull out the gear 14/20 by pulling its pawl out- wards. Next, move the document ejection roller to the left and take it out downwards. Gear 14/20 Document ejection roller (2) To remove the CIS leaf spring, pull up its lower end with the tip of a flat screwdriver and...
  • Page 80: Color

    1.21 Motor (1) To remove the motor, at the left side of the main frame, unhook the spring and then pull out the clutch lever by pulling its pawl outwards. Next, remove the screw and turn the motor clockwise when viewed from the left. Motor Clutch lever and spring IV –...
  • Page 81: Color

    1.22 Solenoid (1) At the left side of the main frame, remove the spring and pull out the clutch lever by pulling its pawl outwards. (2) Remove the gear 20/40. (3) Remove the arm B ASSY and arm A ASSY by pulling the arm B's pawl outwards. (4) Push up the clamp and remove the solenoid.
  • Page 82: Drive Gears

    1.23 Drive Gears (1) At the left side of the main frame, remove the clutch lever, gears, and arm ASSYs, by pulling their pawls outwards (if any). Main frame Gear 33 Gear 18 Gear 33/45 Gear 39 Cover sensor actuator Actuator spring Arm C ASSY (Planet gear 44)
  • Page 83: Friction Torque Transmission Assy, Its Related Gears, And Slip Gear 40

    1.24 Friction Torque Transmission ASSY, its Related Gears, and Slip Gear 40 (1) At the right side of the main frame, remove the ribbon drive gear (Gear 24) by pulling its two pawls outwards. (2) Remove the screw and take off the friction holder. (3) Remove the gear 18 by pulling its pawl outwards and then take off the gear 20/24 and the friction torque transmission ASSY (Gear 46).
  • Page 84: Color

    1.25 Ribbon Bushings (1) Remove the ribbon bushings and the pawled ribbon bushings B. Pawled ribbon bushing B Ribbon bushing Pawled ribbon bushing B Main frame Ribbon bushing 1.26 Bottom Plate (1) Place the machine upside down. (2) Remove the six screws from the bottom plate. (3) Slightly lift up the bottom plate and disconnect the grounding terminal.
  • Page 85: Color

    • Motor harness (6-pin) • Power-main harness (4-pin) • Speaker harness (2-pin) • CIS harness (7-pin) • Main-mike harness (2-pin) For the FAX1570MC/1030/MFC1870MC/1970MC • Battery harness (2-pin) FAX1570MC/1030/MFC1870MC/1970MC FAX1170/1270/1010/1020/MFC1770 Hook switch harness* Main-panel harness Main-mike (NCU connector) (NCU connector) Main-head harness Main-head harness...
  • Page 86: Color

    (3) Turn the machine upside down. (4) Unhook the modular PCB from the latches, slightly lift up front edge of the main PCB, and then take out the main PCB together with the modular PCB and NCU PCB. (5) Remove the PC I/F cover. (6) Disconnect the modular PCB and NCU PCB from the main PCB.
  • Page 87: Power Supply Pcb

    (2) Disconnect the power-main harness from the main PCB. (3) Disconnect the relay connector of the head-power harness. NOTE: To disconnect the relay connector, push the lock of the relay connector to re- lease. FAX1170/1270/1010/1020/MFC1770 FAX1570MC/1030/MFC1870MC/1970MC (NCU connector) (NCU connector)
  • Page 88: Color

    (4) Turn the machine upside down. (5) Remove the adhesive tape to release the power-main harness and the head-power har- ness. (6) Lift up the power supply PCB and pull out the AC cord bushing from the main cover. Head-power harness Power-main harness Power supply PCB...
  • Page 89: Color

    1.29 Harness Routing FAX1170/1270/1010/1020/MFC1770 Power-main harness Head-power harness Main-head harness (Relay connector) Main-sensor T-shaped boss harness Motor harness Center beam of the main frame Solenoid harness Main PCB Hook switch harness Main-panel Speaker harness harness harness (Front) FAX1570MC/1030/MFC1870MC/1970MC Power-main harness...
  • Page 90: Lubrication

    2. LUBRICATION Apply the specified lubricants to the lubrication points as shown below. Molykote EM-30L For points A, apply a rice-sized pinch of grease (6 mm For points B, apply a bean-sized pinch of grease (12 mm Floil GE-334C For points F, apply half of a rice-sized pinch of grease (3 mm [ 1 ] Recording head Recording head (Front)
  • Page 91: Color

    [ 3 ] Gears at the left side of the platen frame Platen Platen frame Clutch gear ASSY Clutch gear ASSY Arm P ASSY [ 4 ] Paper ejection roller Paper ejection roller Paper ejection roller gear (Gear 40) Pawled bushing Platen frame...
  • Page 92: Color

    [ 5 ] Gears at the left side of the main frame Main frame Arm C ASSY Arm A ASSY Arm B ASSY [ 6 ] Friction torque transmission ASSY at the right side of the main frame Gear 46 ASSY IV –...
  • Page 93: Color

    [ 7 ] Separation roller and document ejection roller Separation roller Separation roller support Document ejection roller IV – 49...
  • Page 94: Color

    CHAPTER V. MAINTENANCE MODE...
  • Page 95: Color

    CONTENTS ENTRY INTO THE MAINTENANCE MODE ..........LIST OF MAINTENANCE-MODE FUNCTIONS ..........DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS ..PROM Parameter Initialization ............Printout of Scanning Compensation Data ..........ADF Performance Test ................Test Pattern 1 ..................V-8 Firmware Switch Setting and Printout ........... Operational Check of Control Panel PCB ..........
  • Page 96: Entry Into The Maintenance Mode

    1. 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. one second and displays " MAINTENANCE "...
  • Page 97: List Of Maintenance-Mode Functions

    2. LIST OF MAINTENANCE-MODE FUNCTIONS Maintenance-mode Functions Reference Function Subsection Function Code (Page) PROM Parameter Initialization 3.1 (V-4) Printout of Scanning Compensation Data 3.2 (V-5) ADF* Performance Test 3.3 (V-7) Test Pattern 1 3.4 (V-8) Firmware Switch Setting 3.5 (V-9) Printout of Firmware Switch Data 3.5 (V-47) Operational Check of Control Panel PCB...
  • Page 98: Color

    Enter the desired function code (10, 11, 82, or 91) with the numerical keys. For function code 10, access the desired firmware switch according to the operating procedure described in Subsection 3.5. To make the equipment return to the standby state, press the Stop key. FAX1170/1270/1010/1020/MFC1770 Function key Mode key 0 key...
  • Page 99: Detailed Description Of Maintenance-Mode Functions

    3 DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS PROM Parameter Initialization Function The equipment initializes the parameters, user switches, and firmware switches registered in the E PROM, to the initial values. Entering the function code 01 initializes all of the PROM areas, but entering 91 does not initialize some areas, as listed below. Function code Data item Maintenance-mode functions...
  • Page 100: Printout Of Scanning Compensation Data

    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 101: Model

    Scanning Compensation Data List (MFC1970MC) Scanning Compensation Data List (Other models) V – 6...
  • Page 102: Adf Performance Test

    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 103: Test Pattern 1

    Test Pattern 1 Function This function, much like the copying function, prints out test pattern 1 to allow the service personnel to check for record data missing or print quality. Operating Procedure Press the 0 and 9 keys in this order in the initial maintenance mode. The figure below shows test pattern 1.
  • Page 104: Firmware Switch Setting And Printout

    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 105: Color

    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 (3) Use the...
  • Page 106: Color

    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 dialing 40 ms (for 16 PPS) 64 ms (at 106-ms intervals) No.
  • Page 107: Remote Control

    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 108: Color

    WSW03 (PABX* mode setting) Selector Function Setting and Specifications CNG detection when sharing a 0: A 1: B modular wall socket with a telephone No. 2 50 ms 210 ms Min. detection time length of 500 ms PABX* dial tone, required for 800 ms starting dialing 900 ms...
  • Page 109: Color

    Selectors 6 and 7: Dial tone detection in PABX These selectors activate or deactivate the dial tone detection function which detects a dial tone when a line is connected to the PABX. Setting both of these selectors to "1" activates the dial tone detection function so that the equipment starts dialing upon detection of a dial tone when a line is connected.
  • Page 110: Color

    WSW04 (TRANSFER facility setting) Selector Setting and Specifications Function Earth function in transfer facility Provided 1: Not provided No. 2 Dual tone detection frequency 350 or 440 Hz (A) in ICM recording 440 or 480 Hz (B) 480 or 620 Hz (C) Tone detection sensitivity in 0: OFF 1: High...
  • Page 111: Color

    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 112: Color

    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 113: Color

    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 114: Color

    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 115: Color

    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 Ω)
  • Page 116: Color

    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 117: Model

    WSW09 (Protocol definition 1) Selector Function Setting and Specifications Frame length selection 0: 256 octets 1: 64 octets Use of non-standard commands 0: Allowed 1: Prohibited No. 3 4 times No. of retries 3 times 2 times 1 time T5 timer 0: 300 sec.
  • Page 118: Color

    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 119: Color

    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 120: Color

    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 121: Color

    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 : -47 dBm : -49 dBm : -51 dBm 0: 0 dB 1: 8 dB 0: 0 dB 1: 4 dB Modem attenuator...
  • Page 122: Color

    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 Frequency band selection 30 Hz 55 Hz (Upper limit) 70 Hz No. 5 Fixed to once Fixed to 2 times Fixed to 3 times...
  • Page 123: Color

    WSW15 (REDIAL facility setting) Selector Function Setting and Specifications No. 1 5 minutes Selection of redial interval 1 minute 2 minutes 3 minutes No. 3 : 16 times 1 time No. of redialings 2 times 3 times : 15 times Not used.
  • Page 124: Color

    WSW16 (Function setting 1) Selector Function Setting and Specifications Not used. CCITT superfine recommendation 0: OFF 1: ON 0: Only from the 1: From all connected telephones Remote reception external connected telephone Not used. 0: OFF 1: ON Exclusive line mode Max.
  • Page 125: Call Reservation

    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 Calendar clock/prompt alter- 0: NO 1: YES nate display Calendar clock type 0: U.S.A.
  • Page 126: Color

    WSW18 (Function setting 3) Selector Function Setting and Specifications Fixed to 1. CCD manufacturer setting No. 2 40 sec. Detection enabled time for CNG 0 sec. (No detection) and no tone 5 sec. 80 sec. Not used. 0: Permitted 1: Prohibited Registration of station ID No.
  • Page 127: Modem Speed

    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. V. 17 mode 0: Permitted 1: Prohibited * In those models with a maximum of 9600 bps capability, selection of 12,000 bps or 14,400 bps will...
  • Page 128: Model

    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. 4 100 ms Min. time length from reception of CFR to start of transmission of 200 ms video signals...
  • Page 129: Model

    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 130: Color

    WSW23 (Communications setting) Selector Function Setting and Specifications 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 Issue of RTN at the occurrence 0: YES...
  • Page 131: Model

    WSW24 (TAD setting 2) Selector Function Setting and Specifications 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 132: Model

    WSW25 (TAD setting 3) Selector Function Setting and Specifications Not used. No. 5 2 sec. 4 sec. 6 sec. Pause between paging number 8 sec. and PIN 10 sec. 12 sec. 14 sec. 16 sec. Automatic shift to facsimile message receive mode in ICM 0: YES 1: NO recording mode...
  • Page 133: Caller Id

    WSW26 (Function setting 4) Selector Function Setting and Specifications Application of DC wetting pulse 0: OFF 1: ON Overvoltage limiter at the apply- 0: ON 1: OFF ing time of a wetting pulse 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...
  • Page 134: Distinctive Ringing

    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 erasure of voice alarm...
  • Page 135: Color

    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 136: Model

    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 137: Model

    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 Not used.
  • Page 138: Color

    WSW31 (Function setting 9) Selector Function Setting and Specifications Not used. Default reduction rate for failure 0: 100% 1: 50% of automatic reduction during recording Not used. Minimum short-OFF duration in 0: 130 ms 1: 90 ms distinctive ringing Not used. Selector 2: Default reduction rate for failure of automatic reduction during recording This selector sets the default reduction rate to be applied if the automatic reduction function...
  • Page 139: Color

    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 These selectors set the default resolution which applies when the equipment is powered up or completes a transaction.
  • Page 140: Model

    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 141: Model

    WSW34 (Function setting 12) Selector Function Setting and Specifications No. 1 0 sec. 1 sec. Erasing time length of ICM tone 2 sec. recorded preceding the tone detection starting point in the case 3 sec. of automatic line disconnection 4 sec. due to no voice signal received 5 sec.
  • Page 142: Color

    [ 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 "PRINTING" will appear on the LCD. (2) The equipment prints out the configuration list as shown in the figure below.
  • Page 143: Operational Check Of Control Panel Pcb

    (3) After the last number key or button is pressed, the equipment beeps and returns to the initial maintenance mode. To terminate this operation, press the Stop key. The equipment returns to the initial maintenance mode. FAX1170/1270/1010/1020 Key & Button Entry Order (1) V – 48...
  • Page 144: Color

    MFC1770 FAX1570MC/1030/MFC1870MC/1970MC Key & Button Entry Order (2) V – 49...
  • Page 145: Sensor Operational Check

    Sensor Operational Check Function This function allows you to check that the seven sensors (document front sensor, document rear sensor, cover sensor, paper ejection sensor, paper-edge sensor, ribbon sensor, and hook switch sensor*) operate correctly. (* In the FAX1010 and those versions equipped with a Binatone handset, the hook switch sensor serves no function.) In the FAX1010 and those versions equipped with a Binatone handset, the LCD shows the "FRERCJMPHRX...
  • Page 146: Cis Scanner Area Setting

    (2) Change the detecting conditions and check that the indication on the LCD changes as follows: - Insert a document through the document front sensor, and the "F" of the FRE disap- pears. - Insert a document through the document rear sensor, and the "E" of the FRE disap- pears.
  • Page 147: Document Draw Adjustment

    3.10 Document Draw Adjustment After replacement of the main PCB or CIS, or if data stored in the E PROM is damaged, you need to carry out this procedure by using the TC-027 chart. Function This function adjusts how much the document is drawn in, starting at the point when the document rear sensor is turned on until the leading edge of the document reaches the scan- ning start position.
  • Page 148: Color

    CHAPTER VI. ERROR INDICATION AND TROUBLESHOOTING...
  • Page 149: Color

    CONTENTS ERROR INDICATION ..................VI-1 1.1 Equipment Errors ................... VI-1 [ 1 ] Error messages on the LCD ............VI-1 [ 2 ] Error codes shown in the "MACHINE ERROR _ _" message ..........VI-3 1.2 Communications Errors ................VI-5 TROUBLESHOOTING ...................
  • Page 150: Error Indication

    1. ERROR INDICATION 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 151: Color

    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 152: 2 ] Error Codes Shown In The "Machine Error

    [ 2 ] Error codes shown in the "MACHINE ERROR _ _" message Error Code Error factor (Hex.) Recording paper feeding error. Fails to complete the sequence of recording operation. Wrong or weak contact of the recording head connectors. ( 8B Recording head overheat.
  • Page 153: Color

    Error Code Error factor (Hex.) 82xx Although recording paper has been fed by 150 mm after the start of recording, the paper-edge sensor is still OFF. 8303 Although recording paper has been fed by 360 mm after the start of recording, the paper-edge sensor is still ON.
  • Page 154: Communications Errors

    Communications Errors 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. VI –...
  • Page 155: Color

    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 156: Broadcasting

    (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 157: Color

    (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 158: Mail Box

    (6) ID checking Code 1 Code 2 Causes Password plus "lower 4 digits of telephone number" not coincident. Password not coincident. Polling ID not 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 159: Color

    (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 160: Color

    (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 161: Troubleshooting

    2. TROUBLESHOOTING Introduction This section 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 problems which may occur in future and determine the trouble- shooting procedures, so this section covers some sample problems.
  • Page 162: Troubleshooting Procedures

    Troubleshooting Procedures [ 1 ] Control panel related Trouble Check: (1) LCD shows nothing. • Main-panel harness between the main PCB and the control panel PCB • Interfaces between the main PCB, NCU PCB and power supply PCB • Control panel PCB •...
  • Page 163: 3 ] Communications Related

    Trouble Check: (5) Telephone does not ring. • Speaker • NCU PCB • Main PCB [ 3 ] Communications related Trouble Check: • Main PCB (1) No tone is transmitted. • NCU PCB [ 4 ] Paper/document feeding related Trouble Check: •...
  • Page 164: 5 ] Print-Image Related

    [ 5 ] Print-image related If the received or sent image has any problem, first make a copy with the facsimile equip- ment. If the copied image is normal, the problem may be due to the remote terminal; if it is abnor- mal, proceed to the following checks: Trouble Check:...
  • Page 165: Color

    Trouble Check: (6) Faulty image registration At the scanner • CIS harness • CIS unit • Main PCB At the recorder • Main-head harness and head-power harness • Main PCB (7) Image distortion • Error code displayed (Refer to Section 1, "ERROR In communications INDICATION"...
  • Page 166: Color

    FAX1170/1270/1570MC FAX1010/1020/1030 MFC1770/1870MC/1970MC APPENDICES Circuit Diagrams A. Main PCB B. Network Control Unit (NCU) PCB C. Control Panel PCB D. Power Supply PCB...
  • Page 167: Color

    A G N D V S S 7 5 F C C 1 0 4 C C 1 0 4 C C 1 0 4 C C 1 0 4 G N D E 0 V MAIN 1/5 E 0 V (FAX1170/1270/1010/1020/MFC1770)
  • Page 168: Color

    + 2 6 V D T D 1 1 3 Z K 1 S S 1 2 0 S O L 1 5 D B 2 B - P H B L U E G N D MAIN 2/5 (FAX1170/1270/1010/1020/MFC1770)
  • Page 169: Color

    H R L Y 3 6 E R I B O N 1 2 D R 1 8 C 2 6 C 2 2 C 2 3 1 0 K B 1 1 B - P H G N D MAIN 3/5 (FAX1170/1270/1010/1020/MFC1770)
  • Page 170: Color

    7 4 H C 4 0 5 3 K I A 3 2 4 F 3 5 V / 1 0 C C 1 0 4 M 0 V M 0 V G N D M 0 V MAIN 4/5 (FAX1170/1270/1010/1020/MFC1770)
  • Page 171: Color

    6 8 0 p F 1 8 0 0 p F 1 8 0 0 p F 1 8 0 0 p F T L O F R 4 8 2 2 K 2 2 K 2 2 K MAIN 5/5 (FAX1170/1270/1010/1020/MFC1770)
  • Page 172: Color

    + 5 V R H 5 V A 4 3 R 9 0 R S T L 1 6 A , 4 7 B , 1 4 B , 5 7 E T 7 D 6 0 1 . 5 K V C C O U T R S T...
  • Page 173: Color

    + 2 5 V + 8 V K I A 7 8 0 5 O U T + 5 V G N D + 5 V G N D + 5 V G N D C 9 5 C 5 8 C C 1 0 4 C C 1 0 4 C 9 6...
  • Page 174: Color

    P H 1 R 1 2 4 1 0 K S G - 1 0 5 F 3 0 8 1 0 0 K (Mounted on the FAX1170/1270/ F R N T 1 2 D C K 1 6 MFC1770/1870MC)
  • Page 175: Color

    C 2 0 C C 6 8 1 R 2 6 7 5 K C 2 5 C C 2 2 1 T E L L 1 5 C # 1 5 R 2 3 5 6 K T C 3 5 1 3 3 F C N T R 6 5 N C U...
  • Page 176: Color

    R 5 5 7 5 K C 3 5 C C 2 2 1 # 1 6 T C 3 5 1 3 3 F R 5 6 5 6 K R 4 8 5 6 K D M K T B U S 1 4 D T X O U T...
  • Page 177: Color

    3 . C O M P O N E N T S P A R E N T H E S I S N O T M O U N T E D . (FAX1170/1270/1020/MFC1770) (U.S.A., CANADA, SOUTH AMERICA, GULF, ISRAEL)
  • Page 178: Color

    + 2 6 V C R 1 M Z F - 2 4 H G C M L O U A Z - S S - 1 2 4 D R A 3 5 1 X 2 N C U S L S 0 V S B T 0 2 6 0 X 2 R L 1...
  • Page 179: Color

    J P 8 ( 5 ) A - O U T C 3 7 R D P S R 6 5 J P 1 1 C C 5 6 3 ( S W I ) ( 1 0 ) ( A R L ) J P 2 7 ( C ) T E L O F F 1 L I N E...
  • Page 180: Color

    J P 8 ( 5 ) A - O U T R D P S J P 1 1 ( 1 0 ) J P 2 7 ( C ) T E L O F F 1 L I N E C 3 7 J P 2 2 ( 1 0 ) J P 2 0...
  • Page 181: Color

    J P 8 J P 8 ( 5 ) ( 5 ) A - O U T A - O U T R D P S R D P S J P 1 1 J P 1 1 ( 1 0 ) ( 1 0 ) J P 2 7 ( C ) J P 2 7 ( C )
  • Page 182: Color

    4 . 3 V J P 8 ( 5 ) A - O U T R D P S J P 1 1 ( 1 0 ) J P 2 7 ( C ) T E L O F F 1 S P 7 L I N E J P 2 2 ( 1 0 )
  • Page 183: Color

    J P 8 ( 5 ) A - O U T R D P S R 6 5 J P 1 1 ( 1 0 ) J P 2 7 ( C ) C 3 7 T E L O F F 1 C C 3 3 3 L I N E J P 2 2 ( 1 0 )
  • Page 184: Color

    J P 8 ( 5 ) A - O U T C 1 4 R 6 5 R D P S J P 1 1 C C 3 9 3 ( 1 0 ) J P 2 7 ( C ) T E L O F F 1 Z D 1 3 L I N E...
  • Page 185: Color

    J P 8 ( 5 ) A - O U T R D P S J P 1 1 ( 1 0 ) J P 2 7 ( C ) T E L O F F 1 L I N E C 3 7 J P 2 2 ( 1 0 ) J P 2 0...
  • Page 186: Color

    + 2 6 V C R 1 M Z F - 2 4 H G C M L O U A Z - S S - 1 2 4 D R A 5 0 1 X 2 N C U S L S 0 V R L 1 R L 2...
  • Page 187: Color

    N . C C C 1 0 1 + 5 V P O 0 G N D N . C G N D N . C G N D + 5 V J W 1 N . C Control Panel 1/2 (FAX1170/1270/1010/1020/MFC1770)
  • Page 188: Color

    C L E A R S O R T E N L A R G E / R E D U C E C O P Y S T O P S T A R T Control Panel 2/2 (FAX1170/1270/1010/1020/MFC1770)
  • Page 189: Color

    + 5 V + 5 V 5 2 0 8 9 - 1 4 1 0 C C 1 0 4 G N D 5 2 0 8 9 - 1 4 1 0 M P D 7 5 0 0 4 - 7 1 0 + 5 V C C 1 0 4 K O 0...
  • Page 190: Color

    T 3 - M C P A N E L K E Y M A T R I X R E F E R E N C E T A B L E K E Y N O . K E Y C O E K E Y N O .
  • Page 191: Color

    Power Supply (100-120V) U.S.A., CANADA, TAIWAN...
  • Page 192: Color

    Power Supply (200-240V) EUROPE, SOUTH AMERICA...
  • Page 193: Color

    Power Supply (200-240V) GULF, ASIA, CHINA...
  • Page 194: Model

    FACSIMILE EQUIPMENT PARTS REFERENCE LIST MODEL: FAX1270 / 1570MC / MFC1970MC (For South America / China / Asia / Gulf / Indonesia / India / Taiwan / Hong Kong)
  • Page 195: Color

    © Copyright Brother 1997 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 prior notice.
  • Page 196: Color

    NOTES FOR USING THIS PARTS REFERENCE LIST 1. In the case of ordering parts, it needs mentioning the following items: (1) Code (2) Q' ty (3) Description Note: No orders without Parts Code or Tool No. can be accepted. [Example] REF.NO.
  • Page 198: Color

    * The parts are newly established to comply with CCIB Standard. <Refer to TI No. FAX98500-FAX98502> REF.NO. CODE Q'TY DESCRIPTION REMARKS PLATEN FRAME & MAIN FRAME ATTACHMENT UF8070001 RECORDING HEAD ASSY UF8072001 SPRING, COMPRESSION UG5009001 HEAD-MAIN HARNESS UG5010001 HEAD-POWER KARNESS UF8018001 RECORDER FRAME UF8073001...
  • Page 199: Color

    * The parts are newly established to comply with CCIB Standard. <Refer to TI No. FAX98500-FAX98502> REF.NO. CODE Q'TY DESCRIPTION REMARKS FAX1270/1570MC FOR GUL/ASA/CHN/SAM/IND/IDN/HK UF8153001 RECORDING PAPER COVER ASSY, GRAY(1395), FAX1270 FOR TWN UF8153003 RECORDING PAPER COVER ASSY, WHITE(1138) MFC1970MC FOR CHN 21-1 UF4418001...
  • Page 200: Color

    * The parts are newly established to comply with CCIB Standard. <Refer to TI No. FAX98500-FAX98502> REF.NO. CODE Q'TY DESCRIPTION REMARKS 24-10 UF4576006 KEY, SHIFT, GRAY(1395), FAX1270 FOR TWN 24-10 UF4576003 KEY, SHIFT, WHITE(1138), MFC1970MC FOR CHN 24-11 UF8180002 KEY, MC, WHITE(1397), FAX1270/1570MC FOR GUL/ASA/CHN/SAM/IND/IDN/HK 24-11 UF8180001...
  • Page 201: Color

    * The parts are newly established to comply with CCIB Standard. <Refer to TI No. FAX98500-FAX98502> REF.NO. CODE Q'TY DESCRIPTION REMARKS UG3707070 NCU PCB ASSY, MFC1970MC FOR CHN (CCIB) UG5061001 POWER SUPPLY PCB ASSY FOR SAM UG5063001 POWER SUPPLY PCB ASSY FOR ASA/GUL/IDN/IND/HK UG5063002 POWER SUPPLY PCB ASSY FOR CHN (CCIB) UG5093001...
  • Page 202: Message Center

    QUICK REFERENCE GUIDE, FAX1570MC (ARABIC) FOR GUL/IDN (55) UF8297001 REMOTE CONTROL GUIDE FOR FAX1270 (55) UF8299001 REMOTE CONTROL GUIDE FOR FAX1570MC (56) UE1537001 CARTON, BROTHER FAX1270 FOR SAM (56) UE1678001 CARTON, BROTHER FAX1270 FOR CHN (56) UE1736001 CARTON, BROTHER FAX1270 FOR TWN (56) UE1643001...
  • Page 204: Color

    1. PLATEN FRAME & MAIN FRAME ATTACHMENT REF.NO. CODE Q'TY DESCRIPTION REMARKS UF8116001 PAPER FEED ROLLER ASSY UF0026001 PAWLED BEARING UF8118001 PAPER FRONT COVER SENSING ACTUATOR UF8111001 PAPER-EDGE SENSOR ACTUATOR UF8112001 PAPER EJECTION SENSOR ACTUATOR UF8109001 PAPER FEED CHUTE ASSY (INCLUDING PAPER FEED CHUTE, CHUTE FILM, PAPER FEED SUB CHUTE, SUB CHUTE FILM, SEPARATION PAD, SPRING, SENSOR PCB ASSY, SENSOR-MAIN HARNESS, PAPER EDGE...
  • Page 205: Color

    1. PLATEN FRAME & MAIN FRAME ATTACHMENT REF.NO. CODE Q'TY DESCRIPTION REMARKS UF8035001 SEPARATION ROLLER GEAR UF5511001 SEPARATION ROLLER UF8037001 GEAR,20/40 UF8038001 CLUTCH LEVER UF6664001 SPRING, EXTENSION UG3086001 SOLENOID UF6616000 GEAR, 14/20 UF8144001 DOCUMENT EJECTION ROLLER UF8146001 BUSHING Z26436001 MOTOR U09759001 SCREW, PAN (S/P WASHER) M3X6 UG5012001...
  • Page 207: Model

                            !                             !         Brother Technical Information /FAX98196...
  • Page 208: Model

    Treatment of Old Parts in stock Treatment of Old Parts for refurbishing:   Remarks:     "# $ %      "# $ %  %&' ( !)* # $ %  %&' ( !)* # $ %  ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX98822...
  • Page 209: Model

             Compatibility             Serial Information by BIL    Treatment of Old Parts in stock Treatment of Old Parts for refurbishing:   Remarks: Brother Technical Information /FAX98627...
  • Page 210: Model

    Invention Result/Cause: !6 -,)7(+1( 0'( >+>(7 (;()0-6, 8+7.-, Defect Rate by BIL: Serial Information by BIUK:    Model: FAX1170, FAX1270, FAX1570MC, MFC1770, MFC1870MC, MFC1970MC, FAX1010, FAX1020, BF-70, MFC1025, FAX1030, F-4200 Part Code Change Parts List Change Service Manual Change ...
  • Page 211: Model

      "! #! @              A #(:6  #" # "# #! #(:6    "! #! Invention Result/Cause: !'( 8-1-0+/( 6: >+701 7(:(7(,)( *-10 Defect Rate by BIL: Serial Information by BIUK:    ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX98053...
  • Page 212: Model

    "  ##  $# % "  ##  &     Description: $'-0( 7(1157( #6**(7 51'-,.  $'-0( 7(1157( #6**(7 (+7 +,4 +>(7 #(+7 69(7 +7( ,(2*3 (10+<*-1'(4 +1 7(>*+)(8(,0 >+701 Invention Result/Cause: 51068(7D1 #(E5(10 Defect Rate by BIL: Serial Information by BIUK:    Brother Technical Information /FAX97067...
  • Page 213: Model

    Model:FAX1170, FAX1270, FAX1570MC, MFC1770, MFC1870MC, MFC1970MC, FAX1010, FAX1020, FAX1030 Part Code Change Parts List Change Service Manual Change                (79-1) UF8054001 WHITE PRESSURE ROLLER Old Revision: New Revision:            ...
  • Page 214: Model

    Model:FAX1170, FAX1270, FAX1570MC, MFC1770, MFC1870MC, MFC1970MC, FAX1010, FAX1020, FAX1030 Part Code Change Parts List Change Service Manual Change                (79-3) UF8057001 WHITE PRESSURE ROLLER GEAR Old Revision: New Revision:            ...
  • Page 215: Model

                Serial No    Treatment of Old Parts in stock Treatment of Old Parts for refurbishing:   Remarks: #   - #   -    #   -    #   - ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX97067...
  • Page 216: Model

             Compatibility             Serial Information by BIL     Treatment of Old Parts in stock Treatment of Old Parts for refurbishing:   ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX98133...
  • Page 217: Model

    Treatment of Old Parts for refurbishing:   Remarks:   2*   2* *  )) 3*4     +, ---   - %&'* ---    *  )) 3*4     +, ---   - %&'* ---    ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX97204...