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FACSIMILE EQUIPMENT

SERVICE MANUAL
MODEL: FAX2800/FAX2900/FAX3800 MFC4800 FAX8070P/MFC9030/MFC9070

© Copyright Brother 2001 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.

PREFACE
This publication is a Service Manual covering the specifications, construction, theory of operation, and maintenance of the Brother facsimile equipment. It includes information required for field troubleshooting and repair--disassembly, reassembly, and lubrication--so that service personnel will be able to understand equipment function, to rapidly repair the equipment and order any necessary spare parts. To perform appropriate maintenance so that the facsimile equipment is always in best condition for the customer, the service personnel must adequately understand and apply this manual. This manual is made up of six chapters and appendices.

CHAPTER 1 CHAPTER 2 CHAPTER 3 CHAPTER 4 CHAPTER 5 CHAPTER 6 Appendix 1. Appendix 2. Appendix 3.

GENERAL DESCRIPTION INSTALLATION THEORY OF OPERATION DISASSEMBLY/REASSEMBLY AND LUBRICATION MAINTENANCE MODE ERROR INDICATION AND TROUBLESHOOTING EEPROM Customizing Codes Firmware Switches (WSW) Circuit Diagrams

This manual describes the models and their versions to be destined for major countries. The specifications and functions are subject to change depending upon each destination.

SAFETY INFORMATION

Laser Safety (110-120V Model only)

This printer is certified as a Class 1 laser product under the US Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. This means that the printer does not produce hazardous laser radiation. Since radiation emitted inside the printer is completely confined within the protective housings and external covers, the laser beam cannot escape from the machine during any phase of user operation.

CDRH Regulations (110-120V Model only)

The Center for Device and Radiological Health (CDRH) of the US Food and Drug Administration implemented regulations for laser products on August 2, 1976. These regulations apply to laser products manufactured from August 1, 1976. Compliance is mandatory for products marketed in the United States. The label shown below indicates compliance with the CDRH regulations and must be attached to laser products marketed in the United States.

The label for Chinese products MANUFACTURED: JUNE 2001 BROTHER CORP. (ASIA) LTD. BROTHER BUJI NAN LING FACTORY Gold Garden Industry, Nan Ling Village, Buji, Rong Gang, Shenzhen, China. This product complies with FDA radiation performance standards, 21 CFR Subchapter J. C

CHAPTER 1
GENERAL DESCRIPTION

CHAPTER 1 GENERAL DESCRIPTION CONTENTS

1.1

EQUIPMENT OUTLINE ...................................................................................................1-1 1.1.1 1.1.2 External Appearance and Weight ........................................................................1-1 Components .........................................................................................................1-1

1.2

SPECIFICATIONS............................................................................................................1-2

1.1 EQUIPMENT OUTLINE
1.1.1 External Appearance and Weight

The figure below shows the equipment appearance and approximate dimensions.
(H) 243 mm 9.6"

(W) 395 mm 15.6" (including handset)

(D) 359 mm 14.1"

Weight:

Machine proper Machine (incl. drum unit & toner cartridge) In package

Approx. 7.5 kg Approx. 8.7 kg Approx. 11 kg

1.1.2 Components

The equipment consists of the following major components:

1 -1

1.2 SPECIFICATIONS
FAX2800 (FAX2850)/FAX2900 (1/2)
Model Name GENERAL Print Engine Modem Speed(bps) Transmission Speed(sec.) ITU-T Group Coding Method Input/Output W idth Input/Output Length ADF(pages) LCD Size LCD Backlight Backup Clock Memory Capacity (physical) Optional Memory Dimensions w/ Carton (W xDxH) Dimensions w/o Carton (W xDxH) W eight w/ Carton W eight w/o Carton Color Operating Environment Tem perature Hum idity Power Source Power Consum ption (Sleep/Standby/Peak) On/Off Switch Starter Toner W arm Up Tim e TELEPHONE Handset One-Touch Dial Speed Dial Speaker Phone Chain Dialing Caller ID Call W aiting Caller ID Distinctive Ringing Call Manage Hold/Mute Key Power Failure Dialing Speaker Volume Ring Volume Handset Volume PBX Feature Transfer Method FAX Internet FAX Easy Receive/Fax Detect Fax/Tel Switch Enhanced Rem ote Activate Scan Speed (sec./page, A4:Standard) Memory Transm ission (Brother#1 Chart) (ITU-T Chart) Broadcasting Auto Reduction Out-of-Paper Reception (Brother #1 Chart) (ITU-T Chart) ECM(Error Correction Mode) Group Dial Color FAX (Document Send/Receive) Color FAX (Memory Send/Receive) Memory Backup LIST/REPORT Activity Report/Journal Report Transmission Verification Report INTERFACE External TAD Interface Host Interface (Serial) Host Interface (IEEE1284) Host Interface (USB) LAN Interface Acceptable Media Card Slot Analog Video Port FAX2800 (FAX2850) Laser (YL4) 14,400(Fax) 6(Brother#1,MMR) G3 MH/MR/MMR 5.8"-8.5"/3.5"-8.5" 5"-14"/5"-14" up to 20 16 Characters No Yes (1 hour) 2MB (RAM) N/A 519m m x 454 mm x 375 m m 395mm x 359mm x 243mm 11 Kg 7.5 Kg Gray 1495 10 - 32.5 degrees Centigrade 20 - 80 % 120 VAC, 50/60Hz 10W / 70W / 940W or less No Yes (1,000 pages) Approx. 12 sec FAX2900 Laser (YL4) 14,400(Fax) 6(Brother#1,MMR) G3 MH/MR/MMR 5.8"-8.5"/3.5"-8.5" 5"-14"/5"-14" up to 30 16 Characters x 1 Line No Yes (1 hour) 4MB (RAM) N/A 519m m x 454 mm x 375 m m 395mm x 359mm x 243mm 11 Kg 7.5 Kg Gray 1495 10 - 32.5 degrees Centigrade 20 - 80 % 120 VAC, 50/60Hz 10W / 70W / 940W or less No Yes (1,000 pages) Approx. 12 sec

Yes 8 100 N/A Yes Yes Yes Yes Yes Yes N/A Yes (3 steps + OFF) Yes (3 steps + OFF) Yes (2 steps + Amplify) N/A No

Yes 8 120 N/A Yes Yes Yes Yes Yes Yes N/A Yes (3 steps + OFF) Yes (3 steps + OFF) Yes (2 steps + Amplify) N/A No

90 80

90 80

N/A Yes Yes Yes Approx. 3.5 Pages(MMR/Standard Resolution) Pages(MMR/Standard Resolution) Yes (158 locations) Yes Pages(MMR/Standard Resolution) Pages(MMR/Standard Resolution) Yes Yes (6) No / No No / No No

300 250

300 250

N/A Yes Yes Yes Approx. 3.5 Pages(MMR/Standard Resolution) Pages(MMR/Standard Resolution) Yes (178 locations) Yes Pages(MMR/Standard Resolution) Pages(MMR/Standard Resolution) Yes Yes (6) No / No No / No Yes

Yes (up to 200) Yes

Yes (up to 200) Yes

Yes No No No No N/A N/A

Yes No Yes Yes No N/A N/A

1 -2

FAX2800 (FAX2850)/FAX2900 (2/2)
Model Name PRINTER Color/Mono Engine Type Resolution(dpi) Speed(ppm) Paper Capacity(sheets) Output Paper Capacity(sheets) Standard Print Language Em ulation Resident Fonts Fonts Disk Based Paper Handling Size Manual Feed Slot Other Paper Type Sheet W eight (Paper Cassette) (Manual Slot) Printer Driver FAX2800 (FAX2850) FAX2900 Mono Laser (YL4) 600x600 up to 10 200 50 W indows GDI No No No LTR, LGL, A4, B5, A5, EXE N/A OHP, Envelopes, Organizer 64-158 g/m2 (16 - 42 lb) N/A W in95/98/98SE/Me/2000Professional/ NT4.0W S

COPY Color/Mono Speed(ppm) Multi Copy(Stack) Multi Copy(Sort) Reduction/Enlargem ent(%) Resolution(dpi) First Copy Out Tim e (From Ready Mode) SCANNER Color/Mono Resolution(Optical : dpi) Resolution(Int. : dpi) Gray Scale TW AIN Compliant & Operating System PCI Scanner (Parallel/Serial) BUNDLED SOFTWARE (For Windows) Printer Driver TW AIN Viewer Pop Up Menu OCR PC Fax Remote Setup PC Diagnostics Others BUNDLED SOFTWARE (For iMAC) Printer Driver TW AIN Viewer Pop Up Menu OCR PC Fax Remote Setup PC Diagnostics Others ACCESSORY Life / Yield

Mono up to 10 Yes No 50 to 200 in 1% increments 200 x 300 Approx. 13 sec. No -

Mono up to 10 Yes No 50 to 200 in 1% increments 200 x 300 Approx. 13 sec. No -

No No No No No No No No -

Available download from W eb No No No No No No No -

No No No No No No No No -

Available download from W eb No No No No No No No -

Toner Starter Supply Drum

(N/A) (TN-250) (DR-250)

1,000 pages 2200 pages 20,000 pages: 20 pages/job 8,000 pages: 1 page/job

1,000 pages 2200 pages 20,000 pages: 20 pages/job 8,000 pages: 1 page/job

1 -3

MFC4800/FAX3800 (1/2)
Model Name GENERAL Print Engine Modem Speed(bps) Transm ission Speed(sec.) ITU-T Group Coding Method Input/Output W idth Input/Output Length ADF(pages) LCD Size LCD Backlight Backup Clock Memory Capacity (physical) Optional Mem ory Dim ensions w/ Carton (W xDxH) Dim ensions w/o Carton (W xDxH) W eight w/ Carton W eight w/o Carton Color Operating Environm ent Tem perature Hum idity Power Source Power Consumption (Sleep/Standby/Peak) On/Off Switch Starter Toner W arm Up Time TELEPHONE Handset One-Touch Dial Speed Dial Speaker Phone Chain Dialing Caller ID Call W aiting Caller ID Distinctive Ringing Call Manage Hold/Mute Key Power Failure Dialing Speaker Volum e Ring Volum e Handset Volum e PBX Feature Transfer Method FAX Internet FAX Easy Receive/Fax Detect Fax/Tel Switch Enhanced Remote Activate Scan Speed (sec./page, A4:Standard) Memory Transmission (Brother#1 Chart) (ITU-T Chart) Broadcasting Auto Reduction Out-of-Paper Reception (Brother #1 Chart) (ITU-T Chart) ECM(Error Correction Mode) Group Dial Color FAX (Document Send/Receive) Color FAX (Mem ory Send/Receive) Memory Backup LIST/REPORT Activity Report/Journal Report Transm ission Verification Report INTERFACE External TAD Interface Host Interface (Serial) Host Interface (IEEE1284) Host Interface (USB) LAN Interface Acceptable Media Card Slot Analog Video Port M FC4800 Laser (YL4) 14,400(Fax) 6(Brother#1,MMR) G3 MH/MR/MMR 5.8"-8.5"/3.5"-8.5" 5"-14"/5"-14" up to 20 16 Characters x 1 Line No Yes (1 hour) 2MB (RAM) N/A 519m m x 454 m m x 375 m m 395mm x 359m m x 243mm 11 Kg 7.5 Kg Gray 1495 10 - 32.5 degrees Centigrade 20 - 80 % 120 VAC, 50/60Hz 10W / 70W / 940W or less No Yes (1,000 pages) Approx. 12 sec FAX3800 Laser (YL4) 33,600(Fax) 2(Brother#1,JBIG) Supper G3 MH/MR/MMR/JBIG 5.8"-8.5"/3.5"-8.5" 5"-14"/5"-14" up to 30 16 Characters x 1 Line Yes Yes (1 hour) 8MB (RAM) N/A 519m m x 454 m m x 375 mm 395mm x 359m m x 243mm 11 Kg 7.5 Kg Gray 1495 10 - 32.5 degrees Centigrade 20 - 80 % 120 VAC, 50/60Hz 10W / 70W / 940W or less No Yes (1,000 pages) Approx. 12 sec

Yes No 100 N/A Yes Yes Yes Yes Yes Yes N/A Yes (3 steps + OFF) Yes (3 steps + OFF) Yes (2 steps + Am plify) N/A No

Yes 8 120 N/A Yes Yes N/A Yes Yes Yes N/A Yes (3 steps + OFF) Yes (3 steps + OFF) Yes (2 steps + Am plify) N/A No

90 80

90 80

N/A Yes Yes Yes Approx. 3.5 Pages(MMR/Standard Resolution) Pages(MMR/Standard Resolution) Yes (150 locations) Yes Pages(MMR/Standard Resolution) Pages(MMR/Standard Resolution) Yes Yes (6) No / No No / No No

600 500

600 500

N/A Yes Yes Yes Approx. 3.5 Pages(MMR/Standard Resolution) Pages(MMR/Standard Resolution) Yes (178 locations) Yes Pages(MMR/Standard Resolution) Pages(MMR/Standard Resolution) Yes Yes (6) No / No No / No Yes

Yes (up to 200) Yes

Yes (up to 200) Yes

Yes No Yes Yes No N/A N/A

Yes No Yes Yes No N/A N/A

1 -4

MFC4800/FAX3800 (2/2)
Model Name PRINTER Color/Mono Engine Type Resolution(dpi) Speed(ppm ) Paper Capacity(sheets) Output Paper Capacity(sheets) Standard Print Language Em ulation Resident Fonts Fonts Disk Based Paper Handling Size Manual Feed Slot Other Paper Type Sheet W eight (Paper Cassette) (Manual Slot) Printer Driver M FC4800 Mono Laser (YL4) 600x600 up to 10 200 50 W indows GDI No No Yes LTR, LGL, A4, B5, A5, EXE N/A OHP, Envelopes, Organizer 64-158 g/m 2 (16 - 42 lb) N/A W in95/98/98SE/Me/2000Professional/ NT4.0W S MacOS 8.5.1-9.1 FAX3800 Mono Laser (YL4) 600x600 up to 10 200 50 W indows GDI No No No LTR, LGL, A4, B5, A5, EXE N/A OHP, Envelopes, Organizer 64-158 g/m2 (16 - 42 lb) N/A W in95/98/98SE/Me/2000Professional/ NT4.0W S

COPY Color/Mono Speed(ppm ) Multi Copy(Stack) Multi Copy(Sort) Reduction/Enlargement(%) Resolution(dpi) First Copy Out Time (From Ready Mode) SCANNER Color/Mono Resolution(Optical : dpi) Resolution(Int. : dpi) Gray Scale TW AIN Compliant & Operating System PCI Scanner (Parallel/Serial) BUNDLED SOFTWARE (For Windows) Printer Driver TW AIN Viewer Pop Up Menu OCR PC Fax Remote Setup PC Diagnostics Others BUNDLED SOFTWARE (For iMAC) Printer Driver TW AIN Viewer Pop Up Menu OCR PC Fax Remote Setup PC Diagnostics Others ACCESSORY Life / Yield

Mono up to 10 Yes No 50 -- 200 in 1% increments 200 x 300 Approx. 13 sec. Yes Mono 200x400 1,200x1,200 256 W in95/98/98SE/Me/NT4.0/2000Professinal MacOS 8.6-9.1 Parallel/USB

Mono up to 10 Yes No 50 -- 200 in 1% increments 200 x 300 Approx. 13 sec. No -

Yes Yes Yes Yes Yes Yes (TX only) Yes No Auto E-mail Printing(W in 95/98/Me only)

Available dow nload from W eb No No No No No No No -

Yes Yes Yes No Yes Yes No No -

Available dow nload from W eb No No No No No No No -

Toner Starter Supply Drum

(N/A) (TN-250) (DR-250)

1,000 pages 2200 pages 20,000 pages: 20 pages/job 8,000 pages: 1 page/job

1,000 pages 2200 pages 20,000 pages: 20 pages/job 8,000 pages: 1 page/job

1 -5

FAX-8070P/MFC-9070 (1/2)
Model Name GENERAL Print Engine Modem Speed(bps) Transmission Speed(sec.) ITU-T Group Coding Method Input/Output Width Input/Output Length ADF(pages) LCD Size LCD Backlight On-Screen Programming Backup Clock Memory Capacity(physical) Memory Backup Optional Memory Dimensions w/ Carton (WxDxH) Dimensions w/o Carton (WxDxH) Weight w/ Carton Weight w/o Carton Color Operating Environment Temperature Humidity Power Source Power Consumption (Sleep/Standby/Peak) On/Off Switch Starter Toner TELEPHONE Handset One-Touch Dial Speed Dial Speaker Phone Chain Dialing Caller ID Call Waiting Caller ID Distinctive Ringing Hold/Mute Key Power Failure Dialing Speaker Volume Ring Volume Handset Volume PBX Feature Transfer Method FAX Internet FAX Easy Receive/Fax Detect Fax/Tel Switch Enhanced Remote Activate Quick-Scan(Memory transmission) Memory Transmission (ITU-T Chart) Broadcasting Manual Broadcasting Auto Reduction Out-of-Paper Reception (ITU-T Chart) ECM(Error Correction Mode) Color FAX (Document Send/Receive) Color FAX (Memory Send/Receive) LIST/REPORT Activity Report/Journal Report Transmission Verification Report INTERFACE External TAD Interface Host Interface (Serial) Host Interface (IEEE1284) Host Interface (USB) LAN Interface Acceptable Media Card Slot Analog Video Port FAX-8070P Laser (YL4) 14,400(Fax) Approx.6 (Brother#1,MMR) G3 MH/MR/MMR 5.8"-8.5"/3.5"-8.5" 5"-14"/5"-14" 2 up to 20 (75 g/m ) 16 Characters x 1 line Yes Yes Yes (9 hours) 2 MB(RAM) Yes ( Max. 4 days ) N/A 519mm x 454 mm x 375 mm 395mm x 359mm x 243mm 11 Kg 7.5 Kg Gray 1495 10 - 32.5 degrees Centigrade 20 - 80 % 220-240 VAC, 50/60Hz 10W/70W/940W or less No No MFC-9070 Laser (YL4) 14,400(Fax) Approx.6(Brother#1,MMR) G3 MH/MR/MMR 5.8"-8.5"/3.5"-8.5" 5"-14"/5"-14" 2 up to 20 (75 g/m ) 16 Characters x 1 line Yes Yes Yes (9 hours) 8 MB(RAM) Yes ( Max. 4 days ) N/A 519mm x 454 mm x 375 mm 395mm x 359mm x 243mm 11 Kg 7.5 Kg Gray 1495 10 - 32.5 degrees Centigrade 20 - 80 % 220-240 VAC, 50/60Hz 10W/70W/940W or less No No

No 8 locations 100 N/A Yes N/A N/A Yes(UK, DEN only) N/A N/A Yes (3 steps + OFF) Yes (3 steps + OFF) N/A Yes Flash

No No 100 N/A Yes N/A N/A Yes(UK, DEN only) N/A N/A Yes (3 steps + OFF) Yes (3 steps + OFF) N/A Yes Flash

N/A Yes Yes Yes
Yes as default, Approx.3.5 sec./page (A4 standard)

N/A Yes Yes Yes
Yes as default, Approx.3.5 sec./page (A4 standard)

80 Pages(MMR/Standard Resolution) Yes (158 locations) Yes(50 locations ) Yes 80 Pages(MMR/Standard Resolution) Yes No / No No / No

400 Pages(MMR/Standard Resolution) Yes (150 locations) Yes ( 50 locations ) Yes 400 Pages(MMR/Standard Resolution) Yes No / No No / No

Yes (up to 200) Yes Yes No No No No N/A N/A

Yes (up to 200) Yes Yes No Yes Yes No N/A N/A

1 -6

FAX-8070P/MFC-9070 (2/2)
Model Name PRINTER Color/Mono Engine Type Resolution(dpi) Speed(ppm) Paper Capacity(sheets) Additional Paper Capacity(sheets) Output Paper Capacity(sheets) Standard Print Language Emulation Resident Fonts Fonts Disk Based Paper Handling Size Manual Feed Slot Other Paper Type Sheet W eight (Paper Cassette) (Manual Slot) Printer Driver FAX-8070P MFC-9070 Mono Laser (YL4) 600x600 up to 10 2 200 (75 g/m ) No 50 Windows GDI Yes(PCL5e) Yes(Bitmap font: LetterGothic16.66, OCR-A, OCR-B, Scaleable font; 49 fonts ) Yes LTR, LGL, A4, B5, A5, EXE, A6, B6 N/A OHP, Envelopes, Organizer 2 64-158 g/m (16 - 42 lb) N/A W in95/98/98SE/Me, W inNT4.0W S/2000Professional

COPY Color/Mono Speed(ppm) Multi Copy(Stack) Multi Copy(Sort) Reduction/Enlargement(%) Resolution(dpi) SCANNER Color/Mono Resolution(Optical : dpi) Resolution(Int. : dpi) Gray Scale TW AIN Compliant & Operating System PCI Scanner (Parallel/Serial) BUNDLED SOFTWARE (For Windows) Printer Driver TW AIN Viewer Pop Up Menu OCR PC Fax Remote Setup PC Diagnostics Others BUNDLED SOFTWARE (For iMAC) Printer Driver TWAIN Viewer Pop Up Menu OCR PC Fax Remote Setup PC Diagnostics Others ACCESSORY Life / Yield

Mono up to 10 Yes No 50 to 200 in 1% increments 200 x 300

Mono up to 10 Yes Yes 50 to 200 in 1% increments 200 x 300

-

Mono 200x400 1,200x1,200 256 W in95/98/98SE/Me, W inNT4.0W S/2000Professional Parallel/USB

No No No No No No No Yes -

Yes Yes Yes Yes Yes Yes Yes Yes Auto E-mail Printing(W in 95/98/Me only)

No No No No No No No Yes -

Yes Yes Yes No Yes No No No No

TN-8000(Toner) (2,200 pages w/5% coverage ) DR-8000 ( Drum ) (20,000 pages: Continuous Printing) DR-8000( Drum ) (8,000 pages:1 page/job)

TN-8000(Toner) (2,200 pages w/5% coverage ) DR-8000 ( Drum ) (20,000 pages: Continuous Printing) DR-8000( Drum ) (8,000 pages:1 page/job)

1 -7

MFC-9030 (1/2)
Model Name GENERAL Print Engine Modem Speed(bps) Transmission Speed(sec.) ITU-T Group Coding Method Input/Output W idth Input/Output Length ADF(pages) LCD Size LCD Backlight On-Screen Programming Backup Clock Memory Capacity(physical) Memory Backup Optional Memory Dimensions w/ Carton (W xDxH) Dimensions w/o Carton (W xDxH) W eight w/ Carton W eight w/o Carton Color Operating Environment Temperature Humidity Power Source Power Consumption (Sleep/Standby/Peak) On/Off Switch Starter Toner TELEPHONE Handset One-Touch Dial Speed Dial Speaker Phone Chain Dialing Caller ID Call W aiting Caller ID Distinctive Ringing Hold/Mute Key Power Failure Dialing Speaker Volume Ring Volume Handset Volume PBX Feature Transfer Method FAX Internet FAX Easy Receive/Fax Detect Fax/Tel Switch Enhanced Remote Activate Quick-Scan(Memory transmission) Memory Transmission (ITU-T Chart) Broadcasting Manual Broadcasting Auto Reduction Out-of-Paper Reception (ITU-T Chart) ECM(Error Correction Mode) Color FAX (Document Send/Receive) Color FAX (Memory Send/Receive) LIST/REPORT Activity Report/Journal Report Transmission Verification Report INTERFACE External TAD Interface Host Interface (Serial) Host Interface (IEEE1284) Host Interface (USB) LAN Interface Acceptable Media Card Slot Analog Video Port MFC-9030 Laser (YL4) 14,400(Fax) Approx.6(Brother#1,MMR) G3 MH/MR/MMR 5.8"-8.5"/3.5"-8.5" 5"-14"/5"-14" 2 up to 20 (75 g/m ) 16 Characters x 1 line No Yes Yes (9 hours) 2 MB(RAM) Yes ( Max. 4 days ) N/A 519mm x 454 mm x 375 mm 395mm x 359mm x 243mm 11 Kg 7.5 Kg Gray 1495 10 - 32.5 degrees Centigrade 20 - 80 % 220-240 VAC, 50/60Hz 10W /70W/940W or less No No

No No 100 N/A Yes N/A N/A Yes(UK, DEN only) N/A N/A Yes (3 steps + OFF) Yes (3 steps + OFF) N/A Yes Flash

N/A Yes Yes Yes
Yes as default, Approx.3.5 sec./page (A4 standard)

80 Pages(MMR/Standard Resolution) Yes (150 locations) Yes ( 50 locations ) Yes 80 Pages(MMR/Standard Resolution) Yes No / No No / No

Yes (up to 200) Yes Yes No Yes Yes No N/A N/A

1 -8

MFC-9030 (2/2)
Model Name PRINTER Color/Mono Engine Type Resolution(dpi) Speed(ppm) Paper Capacity(sheets) Additional Paper Capacity(sheets) Output Paper Capacity(sheets) Standard Print Language Emulation Resident Fonts Fonts Disk Based Paper Handling Size Manual Feed Slot Other Paper Type Sheet W eight (Paper Cassette) (Manual Slot) Printer Driver MFC-9030 Mono Laser (YL4) 600x600 up to 8 2 200 (75 g/m ) No 50 Windows GDI No No Yes LTR, LGL, A4, B5, A5, EXE, A6, B6 N/A OHP, Envelopes, Organizer 2 64-158 g/m (16 - 42 lb) N/A W in95/98/98SE/Me, W inNT4.0W S/2000Professional

COPY Color/Mono Speed(ppm) Multi Copy(Stack) Multi Copy(Sort) Reduction/Enlargement(%) Resolution(dpi) SCANNER Color/Mono Resolution(Optical : dpi) Resolution(Int. : dpi) Gray Scale TW AIN Compliant & Operating System PCI Scanner (Parallel/Serial) BUNDLED SOFTWARE (For Windows) Printer Driver TW AIN Viewer Pop Up Menu OCR PC Fax Remote Setup PC Diagnostics Others BUNDLED SOFTWARE (For iMAC) Printer Driver TWAIN Viewer Pop Up Menu OCR PC Fax Remote Setup PC Diagnostics Others ACCESSORY Life / Yield

Mono up to 10 Yes No 50 to 200 in 1% increments 200 x 300

Mono 200x400 1,200x1,200 256 W in95/98/98SE/Me, W inNT4.0W S/2000Professional Parallel/USB

Yes Yes Yes Yes Yes Yes Yes Yes Auto E-mail Printing(W in 95/98/Me only)

Yes Yes Yes No Yes No No No No

TN-8000(Toner) (2,200 pages w/5% coverage ) DR-8000 ( Drum ) (20,000 pages: Continuous Printing) DR-8000( Drum ) (8,000 pages:1 page/job)

1 -9

CHAPTER 2
INSTALLATION

CHAPTER 2 INSTALLATION CONTENTS

2.1 2.2

INSTALLING THE UPDATE DATA TO THE FACSIMILE MACHINE.............................2-1 SETTING ID CODES TO FACSIMILE MACHINES .........................................................2-3

2.1 INSTALLING THE UPDATE DATA TO THE FACSIMILE MACHINE
If the program version is updated or the main PCB is replaced, then install the update program onto the flash ROM of the main PCB. The program installation requires a PC/AT-compatible computer (which is capable of running MSDOS or its compatible OS).

Connecting the facsimile machine to your computer
(1) Make sure that your computer is turned off. (2) Make sure that the machine's power cord is unplugged from a wall socket. (If the machine has a power ON/OFF switch, make sure that the switch is turned off.) (3) Connect the parallel interface cable to the parallel port on the back of the machine and secure it with the lock wires. (4) Connect the other end of the interface cable to the printer port of your computer and secure it with the two screws. (5) While pressing the 5 key on the machine's control panel, plug the machine's power cord into a wall socket (or turn on the power ON/OFF switch if the machine has the switch). (6) Check to see that the following pattern displays on the LCD. If it does not display, go back to step (2) above.
Blank-and-black patterns

(7) Turn on your computer.
Lock wires

Parallel interface cable Host computer

2 -1

Installing the update data onto the flash ROM of the facsimile machine
NOTE: The following is an installation procedure example on a PC that is running Windows 95/98.

(1) Copy the update data and transfer utility onto the desired directory of the hard disk. e.g., C:\UPDATE (2) Click the Start button, point to Programs, and then click MS-DOS Prompt to open an MS-DOS window. (3) Type the drive letter where the update data and transfer utility are located. In the above example, type C:\ from the command line and press the ENTER key. Then type CD UPDATE and press the ENTER key. (4) Check that your computer is connected with the facsimile machine correctly. (5) To start the transfer utility transmitting the update data to the flash ROM of the facsimile machine, type the following: ICEN filename /b Then press the ENTER key. During downloading, the machine beeps intermittently. Upon completion of the downloading, the machine beeps continuously.
NOTE: If the facsimile machine cannot return to the standby state after completion of downloading, turn the power off and on.

2 -2

2.2 SETTING ID CODES TO FACSIMILE MACHINES
Function

Brother facsimile machines are assigned unique ID codes (character strings) at the factory. If you replace the main PCB of the machine, the machine will lose its assigned ID code so that it will not be identified by the connected PC*. You need to assign a unique ID code (character string) to the machine according to the procedure given here. For models covered by this manual, set serial numbers given to individual machines as ID codes.
(*ID codes are essential when more than one machine is connected to a single PC via USB.)

Connecting each of facsimile machines to your PC

(1) Make sure that your PC is turned off. (2) Make sure that the machine's power cord is unplugged from a wall socket. (3) Connect the interface cable to the parallel interface port on the back of the facsimile machine and secure it with the lock wires. (4) Connect the other end of the interface cable to the printer port of your PC and secure it with the two screws. (5) Plug the machine's power cord into a wall socket. (6) Turn on your PC.
Operating Procedure

(1) On your PC, run the ID setting utility. Follow the instructions shown on the PC's screen and enter the 9-digit serial number (e.g., G01012345) printed on the nameplate labeled to the back of the facsimile machine as an ID code. Then press the Enter key. The ID setting utility will transmit the ID code data from your PC to the facsimile machine and then it will terminate. The facsimile machine will automatically return to the standby mode. (2) To check whether the entered character string (ID code) is correct, make the machine enter the maintenance mode (refer to CHAPTER 5, Section 5.1) and then press the 1 key twice (Subsection 5.3.5). The facsimile machine will print out a Configuration List. At the right top of the list, "SER.#: BROXXXXXXXXX" is printed. (3) Check that the character string entered in step (2) is printed in "XXXXXXXXX." If it is OK, press the 9 key twice to exit from the maintenance mode. If something other than that is printed in XXXXXXXXX, check the connection between the PC and facsimile machine and go back to step (1).
2 -3

CHAPTER 3
THEORY OF OPERATION

CHAPTER 3 THEORY OF OPERATION CONTENTS

3.1 3.2

OVERVIEW ......................................................................................................................3-1 MECHANISMS .................................................................................................................3-2 3.2.1 Scanner Mechanism ............................................................................................3-3 Document feeding and ejecting mechanism ................................................3-3 Scanner........................................................................................................3-3

3.2.1.1 3.2.1.2 3.2.2

Laser Printing Mechanism....................................................................................3-4 Paper pulling-in, registration, feeding, and ejecting mechanism..................3-4 Print process mechanism.............................................................................3-6 Heat-fixing mechanism ................................................................................3-7

3.2.2.1 3.2.2.2 3.2.2.3 3.2.3 3.3

Sensors and Actuators .........................................................................................3-8

CONTROL ELECTRONICS...........................................................................................3-10 3.3.1 Configuration ......................................................................................................3-10

3.1 OVERVIEW

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3.2 MECHANISMS
The facsimile machine is classified into the following mechanisms: SCANNER MECHANISM LASER PRINTING MECHANISM - Document feeding and ejecting mechanism - Document scanning mechanism - Paper pulling-in, registration, feeding, and ejecting mechanisms - Print process mechanism (consisting of charging, exposing, developing, transferring, and erasing processes) - Heat-fixing mechanism

SENSORS AND ACTUATORS

Document feeding and ejecting mechanism Document scanning mechanism

SCANNER MECHANISM

Paper pulling-in and registration mechanism

Paper ejecting mechanism Heat-fixing mechanism Print process mechanism LASER PRINTING MECHANISM With paper feeding mechanism

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3.2.1 Scanner Mechanism

3.2.1.1

Document feeding and ejecting mechanism

This mechanism consists of the document stacker, automatic document feeder (ADF), document ejection roller ASSY, and document sensors. (For details about the sensors, refer to Subsection 3.2.3.) If you set documents on the document stacker with their faces down and start the scanning operation, then the scanner motor rotates so that the ADF (which consists of the separation roller and ADF parts) feeds those documents into the machine, starting from the bottom sheet (first page) to the top (last page), page by page. Each document advances with the document feed roller ASSY to the scanner, and then it is fed out of the machine with the document ejection roller ASSY.

3.2.1.2

Scanner

The scanner uses a contact image sensor (CIS) unit which consists of an LED array illuminating 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. When the document passes between the document pressure bar and the cover glass, it is scanned.

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3.2.2 Laser Printing Mechanism 3.2.2.1 Paper pulling-in, registration, feeding, and ejecting mechanism

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Paper pulling-in and registration mechanism

The paper pulling-in and registration mechanism consists of the pull-in roller gear (incorporated in the auto sheet feeder ASF), planetary gear system, paper feed solenoid, solenoid lever, clutch release lever, and registration sensor. (For the details about the sensor, refer to Subsection 3.2.3.) If the main motor rotates clockwise, the rotation is transmitted to the intermediate gear of the planetary gear system. As the intermediate gear rotates, the pull-in roller drive gear also rotates since the clutch gear is locked by the solenoid lever and the clutch release lever. Accordingly, the pull-in roller in the ASF rotates to pull in paper into the machine, a sheet at a time. If the paper feed solenoid is retracted and the clutch release lever is operated according to the cam profile of the pull-in roller drive gear so as to release the clutch gear, the clutch gear rotates and the pull-in roller drive gear does not rotate. This way, the clutch gear switches the transmission of the motor rotation to the pull-in roller drive gear on and off. The solenoid on/off timing and the clutch release lever timing allow this mechanism to pull in a sheet and register it against the registration roller.

Paper feeding and ejecting mechanism

If the main motor rotates clockwise, the rotation is transmitted via the gear train to the drum drive gear, heater roller drive gear, and paper ejection roller drive gear. After the paper passes through the heat-fixing process, it will be ejected onto the paper tray. If the leading edge of the paper pushes up the actuator of the paper ejection sensor, the photosensor becomes opened, signaling the start of paper ejection. If the trailing edge has passed through the sensor actuator, the sensor becomes closed, signaling the completion of paper ejection. Then, the main motor stops rotation.

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3.2.2.2

Print process mechanism

The print process unit works with laser beam, electrical charges, and toner. The graph below shows the transition of electrical charge on the surface of the laser-sensitive drum through the five processes: charging, exposing, developing, transferring, and erasing processes.

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3.2.2.3

Heat-fixing mechanism

As the paper passes between the heater roller and the pressure roller in the heat-fixing unit, the heater roller fuses the toner on the paper.

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3.2.3 Sensors and Actuators

This machine has nine sensors: six photosensors, two thermistors and, a mechanical switch as described below. Sensor name Document front sensor Document rear sensor Cover sensor Registration sensor Paper ejection sensor Toner sensor Toner thermistor Heater thermistor Hook switch Type Photosensor Photosensor Photosensor Photosensor Photosensor Photosensor Thermistor Thermistor Mechanical switch Located on Control panel PCB Cover/registration sensor PCB High-voltage power supply PCB Toner sensor PCB Toner sensor PCB Heat-fixing unit Hook switch PCB

· Document front sensor which detects the 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. · Cover sensor which detects whether the top cover is closed. · Registration sensor which detects the leading and trailing edges of paper, which allows the controller to determine the registration timing and check paper jam. · Paper ejection sensor which detects whether the recording paper goes out of the machine. · Toner sensor which detects whether there is toner or a toner cartridge is loaded. · Toner thermistor which allows the controller to monitor the ambient temperature of the toner cartridge. · Heater thermistor which allows the controller to monitor the temperature of the heater roller of the fixing unit. · Hook switch which detects whether the handset is placed on the handset mount. These photosensors are a photointerrupter consisting of a light-emitting diode and a light-sensitive transistor. Each of them has an actuator separately arranged as shown on the next page.

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Location of Sensors and Actuators

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3.3 CONTROL ELECTRONICS
3.3.1 Configuration

The hardware configuration of the facsimile machine is shown below.

Configuration of Facsimile Machine

(NOTE 1) Not provided on some models. (NOTE 2) Provided on the European, Pacific, and Asian versions. 3 -1 0

CHAPTER 4
DISASSEMBLY/REASSEMBLY AND LUBRICATION

CHAPTER 4 DISASSEMBLY/REASSEMBLY AND LUBRICATION CONTENTS

4.1

DISASSEMBLY/REASSEMBLY......................................................................................4-1 Safety Precautions ........................................................................................................4-1 Tightening Torque List......................................................................................................4-2 Preparation ...................................................................................................................4-3 How to Access the Object Component .........................................................................4-3 Disassembly Order Flow...............................................................................................4-4 4.1.1 4.1.2 4.1.3 4.1.4 4.1.5 4.1.6 4.1.7 4.1.8 4.1.9 Document Guide Base .........................................................................................4-5 Board Access Cover.............................................................................................4-5 Auto Sheet Feeder (ASF).....................................................................................4-6 Handset Mount and Control Panel ASSY...........................................................4-12 Panel Rear Cover and Control Panel .................................................................4-14 Top Cover...........................................................................................................4-17 CIS Unit ..............................................................................................................4-19 Hook Switch PCB ...............................................................................................4-20 Document Feed Roller ASSY, Scanner Drive Unit, and Document Ejection Roller ASSY........................................................................................................4-21

4.1.10 Separation Roller and its Gear ...........................................................................4-23 4.1.11 Heat-fixing Unit, FU Lamp, and Paper Ejection Sensor Actuator.......................4-25 4.1.12 Laser Unit and Toner Sensor PCB.....................................................................4-27 4.1.13 Main PCB ...........................................................................................................4-28 4.1.14 Bottom Plate.......................................................................................................4-30 4.1.15 Low-voltage Power Supply PCB.........................................................................4-31 4.1.16 High-voltage Power Supply PCB........................................................................4-32 4.1.17 Cover/Registration Sensor PCB, Duct, and Fan ................................................4-33 4.1.18 Top Cover Sensor Actuator................................................................................4-34 4.1.19 Power Supply Shield ..........................................................................................4-34 4.1.20 Speaker ..............................................................................................................4-35 4.1.21 Gear Drive Unit...................................................................................................4-36

4.1.22 PCB Support and NCU PCB ..............................................................................4-38 4.1.23 Side Covers R and L ..........................................................................................4-39 4.1.24 Scanner Grounding Plate ...................................................................................4-40 4.1.25 EL (Eraser Lamp) Board ....................................................................................4-41 4.1.26 Harness Routing.................................................................................................4-42 4.1.27 Cleaning of High-voltage Contacts and Grounding Contacts.............................4-46 4.2 LUBRICATION ..................................................................................................................4-47

4.1 DISASSEMBLY/REASSEMBLY
Safety Precautions

To prevent the creation of secondary problems by mishandling, observe the following precautions during maintenance work. (1) Unplug the power cord from the power outlet before replacing parts or units. When having access to the power supply, be sure to unplug the power cord from the power outlet. (2) When servicing the optical system of the laser printing unit, be careful not to place screwdrivers or other reflective objects in the path of the laser beam. Be sure to take off any personal accessories such as wrist watches and rings before working on the printer. A reflected beam, though invisible, can permanently damage your eyes. (3) If the machine has been printing, allow the heat-fixing unit sufficient time to cool down before starting maintenance jobs. It is HOT! (4) Be careful not to lose screws, washers, or other parts removed for parts replacement. (5) Do not remove gears from the document feed roller ASSY or ejection roller ASSY if at all possible. Once removed, they will become unusable and new gears will have to be put back in. (6) When using soldering irons and other heat-generating tools, take care not to damage the resin parts such as wires, PCBs, and covers. (7) Before handling the PCBs, touch a metal portion of the machine to discharge static electricity; otherwise, the electronic parts may be damaged due to the electricity charged in your body. (8) When transporting PCBs, be sure to wrap them in conductive sheets such as aluminum foil. (9) Be sure to reinsert self-tapping screws correctly, if removed. (10) Tighten screws to the torque values listed on the next page. (11) When connecting or disconnecting cable connectors, hold the connector bodies not the cables. If the connector has a lock, always slide the connector lock to unlock it. (12) Before reassembly, apply the specified lubricant to the specified points. (Refer to Subsection 4.2 in this chapter.) (13) After repairs, check not only the repaired portion but also that the connectors and other related portions function properly before operation checks.

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Tightening Torque List Location Board access cover Release lever Grounding leaf spring R Grounding leaf spring L ADF parts Panel rear cover Link stoppers FG wire & main PCB CIS shield plate Scanner drive unit Scanner motor Heat-fixing unit Fixing unit upper cover Lock plate Fuse plate R Laser unit Main shield Parallel interface connector Main PCB Bottom plate Screw type Taptite, bind B M4x12 Taptite, bind B M4x10 Taptite, bind B M2.6x8 Taptite, bind B M2.6x8 Taptite, pan B M3x6 Taptite, cup B M3x8 Taptite, pan B M4x6D 10 Taptite, cup S M3x6 Taptite, cup B M3x6 Taptite, cup B M3x8 Screw, pan (washer) M3x6DA Taptite, cup B M4x16 Taptite, bind B M3x12 Taptite, pan B M3x10 Screw, pan (washer) M2.6x6DA Taptite, bind B M4x12 Taptite, cup S M3x6 Taptite, pan S M3x12 Taptite, cup S M3x6 Taptite, bind B M4x12 Taptite, cup S M3x6 Low-voltage power supply PCB Taptite, cup S M3x6 (Low-voltage insulator sheet) Grounding wire Power inlet support Duct Fan support Power supply shield Gear drive unit Main motor Motor support plate PCB support NCU shield NCU PCB Scanner grounding plate Side covers R and L Screw, pan (washer) M4x8DB Taptite, cup S M3x6 Taptite, bind B M4x12 Taptite, cup B M3x8 Taptite, cup S M3x6 Taptite, bind B M4x14 Taptite, cup S M3x6 Taptite, cup S M3x16 Taptite, bind B M4x12 Taptite, cup S M3x6 Taptite, cup S M3x6 Taptite, cup B M3x8 Taptite, bind B M4x12 Q'ty 2 1 1 2 1 2 2 1 3 2 1 2 2 1 1 3 2 2 1 5 4 2 1 1 1 2 1 2 4 2 2 2 2 1 1 4 Tightening torque N·m (kgf·cm) 0.78 ±0.10 0.98 ±0.20 0.39 ±0.10 0.39 ±0.10 0.49 ±0.20 0.49 ±0.20 0.49 ±0.20 0.69 ±0.20 0.49 ±0.20 0.49 ±0.20 0.69 ±0.20 0.98 ±0.20 0.69 ±0.20 0.69 ±0.20 0.39 ±0.10 0.98 ±0.20 0.69 ±0.20 0.69 ±0.20 0.69 ±0.20 0.98 ±0.20 0.69 ±0.20 0.69 ±0.20 0.39 ±0.20 0.69 ±0.20 0.98 ±0.20 0.98 ±0.20 0.49 ±0.20 0.69 ±0.20 0.98 ±0.20 0.69 ±0.20 0.69 ±0.20 0.98 ±0.20 0.69 ±0.20 0.69 ±0.20 0.49 ±0.20 0.98 ±0.20 (8 ±1) (10 ±2) (4 ±1) (4 ±1) (5 ±2) (5 ±2) (5 ±2) (7 ±2) (5 ±2) (5 ±2) (7 ±2) (10 ±2) (7 ±2) (7 ±2) (4 ±1) (10 ±2) (7 ±2) (7 ±2) (7 ±2) (10 ±2) (7 ±2) (7 ±2) (4 ±2) (7 ±2) (10 ±2) (10 ±2) (5 ±2) (7 ±2) (10 ±2) (7 ±2) (7 ±2) (10 ±2) (7 ±2) (7 ±2) (5 ±2) (10 ±2)

High-voltage power supply PCB Taptite, bind B M4x12

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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 PC interface cable (parallel cable or USB cable) if connected (Not shown below), and - the modular jack of an external telephone set if connected (Not shown below). (2) Remove - the paper support, - the document support, - the document tray, - the paper tray, and - the drum unit (with the toner cartridge loaded)

How to Access the Object Component

· On the next page is a disassembly order flow which helps you access the object components. To remove the gear drive unit, for example, first find it on the flow and learn its number ( in so as to access this case). You need to remove parts numbered , , , , , , , and the gear drive unit. · Unless otherwise specified, the disassembled parts or components should be reassembled in the reverse order of removal.
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Disassembly Order Flow

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4.1.1 Document Guide Base

(1) Lift up the document guide base.

4.1.2 Board Access Cover

(1) Remove two screws. (2) Push down the top of the board access cover to release the two latches from the main cover, then pull it to the rear.

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4.1.3 Auto Sheet Feeder (ASF)

(1) If the board access cover has not been removed in Subsection 4.1.2, you need to remove the two screws with which the board access cover and ASF are fastened together to the main cover. (2) Open the top cover. (3) Pull the ASF to the front and then lift it up.

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[Disassembling the ASF]

1) Unhook the release lever spring. 2) Remove screw "a" and pull out the release lever. 3) Turn the release cam to the front and pull it out to the left.

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4) At the right end of the ASF, remove the screw from the grounding leaf spring R. (It is not necessary to remove the leaf spring.) Next pull out the pawled bushing R. At the left end of the ASF, remove the sector gear and its spring. Unlatch the pawled bushing L to the left and then remove it from the paper pull-in roller shaft. Remove the paper pull-in roller.

5) Push the right and left ends of the separation pad ASSY inwards and take it out. The spring also comes off.

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6) Turn the ASF upside down, then remove the registration sensor actuator.

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7) There are two sets of pinch roller units. At each set, remove the leaf spring (in the order of to shown below), pinch rollers, and pinch roller shaft. 8) At the right end of the paper feed roller, remove the screw and take off the grounding leaf spring R if you have not removed it in step 4) above. 9) At the left end of the paper feed roller, remove two screws and take off the grounding leaf spring L, pawled PF gear, and idle gear. Then, remove the paper feed roller.

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10) Press the lock arm provided at the left inside of the ASF to the rear with a screwdriver, slide the ASF chute ASSY to the left, and take it out to the front. NOTE: To replace only the black film attached to the chute, do not remove the ASF chute ASSY from the ASF. NOTE: A new chute and black film will be provided separately. When replacing the chute ASSY, first set the chute into the ASF and then attach the black film to the chute. If you first attach the black film to the chute and then set the ASF chute ASSY, then the black film may be bent or wrinkled.

Reassembling Notes

· Set the paper feed roller into the ASF with the D-shaped end facing leftwards. · Set the paper pull-in roller into the ASF with the D-shaped end facing leftwards. · When setting the release lever back into place, turn the release cam to the rear and then set the release lever so that the bottom end of the release lever comes in the front of the boss provided on the ASF as illustrated on page 4-7.

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4.1.4 Handset Mount and Control Panel ASSY

(1) Open the control panel ASSY. (2) Open the top cover. (3) Unhook the three latches of the handset mount from the top cover and remove it.

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(4) Disconnect the panel-hook SW harness from the hook sensor PCB and take it out from the cable guides. (5) Push the right-hand arm of the control panel ASSY inwards with your finger and open the control panel ASSY further. Then lift up the control panel ASSY.

Reassembling Notes

· Route the panel-hook SW harness together with the hook SW-main harness through the two cable guides provided on the scanner drive unit, as illustrated in Subsection 4.1.26, "Harness routing B." · When installing the handset mount, first fit the two tabs provided at the upper section into the top cover and then snap the handset mount into place, taking care not to let it hold down the hook switch.

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4.1.5 Panel Rear Cover and Control Panel

(1) Place the control panel ASSY upside down. If you do not need to remove the ADF parts, pinch rollers and their related parts, anti-static brush, or document rear sensor actuator, skip to step (6). (2) To remove the ADF parts (spring plates and separation rubber), remove the screw. (3) To remove the pinch rollers and their related parts, press the lock arm to the rear and shift the pinch roller shaft to the left. (4) To replace the anti-static brush, remove it. NOTE: Once removed, the anti-static brush will become unusable and a new part will have to be put back in.

(5) To remove the document rear sensor actuator, pull support "c" outwards. (6) Pull support "a" to the front to release the center tab of the document pressure bar. Next pull either of supports "b" outwards and lift up the document pressure bar. The spring also comes off.

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(7) Remove the two screws from the panel rear cover. (8) Unhook the panel rear cover from 10 "X" latches provided on the control panel and take off the panel rear cover. (9) Fully turn the document front sensor actuator to the rear and lift it up. (10) Unhook the control panel PCB from four "Y" latches. (11) Slightly lift up the control panel PCB, then unlock the LCD cable connector and disconnect the LCD flat cable. Next, unlock the FPC key connector and disconnect the FPC key.

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(12) As shown below, pull the clamp outwards to release the LCD and take out the LCD while pulling the LCD flat cable gently. NOTE: Do not take out the LCD except when the LCD is defective and requires replacement.

Reassembling Notes

· Before reinstalling the LCD to the control panel, wipe fingerprints or dust off the LCD surface and control panel window with a soft cloth. · A new LCD is covered with a protection sheet. Before installing it, remove the protection sheet.

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4.1.6 Top Cover

(1) Remove the board access cover if installed. (2) Disconnect the CIS harness, hook SW-main harness, and scanner motor harness from the main PCB. (3) Remove the screw that secures the FG wire to the PCB support. (4) Release the hook SW-main harness, scanner motor harness, and FG wire from the two cable guides provided on the main cover. (See Subsection 4.1.26, "Harness routing D.") (5) Open the top cover. (6) At each of the right and left sides of the top cover, remove the screw from the link stopper. Then pull the link stopper outwards and open the top cover further. (7) Turn the top cover upright and then lift it up to the rear. (8) Turn each link stopper to the rear and pull it out inwards.

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Reassembling Notes

· Before reinstalling the top cover, route the FG wire, hook SW-main harness, scanner motor harness, and CIS harness on the underside of the top cover as illustrated in Subsection 4.1.26, "Harness routing C." After installing the top cover, route the FG wire and those three harnesses on the main cover as illustrated in Subsection 4.1.26, "Harness routing D and E." · When routing the FG wire, hook SW-main harness, and scanner motor harness through the cable guides, be sure to first route the FG wire and then route those two harnesses. This may prevent the FG wire from working out of the cable guides. · When disposing of top covers, remove two leaf springs from each top cover with a flat screwdriver to separate metallic springs from plastic covers.

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4.1.7 CIS Unit

(1) Turn the top cover upside down. (2) Remove the three screws from the CIS shield plate. The FG wire and feed roller grounding spring also come off. (3) Disconnect the CIS harness from the CIS unit. (4) Turn the top cover rightside up. (5) Slightly pull up the lock arm, move the CIS unit to the left, and lift up the right edge of the CIS unit. (6) Remove the two CIS springs.

Reassembling Notes

· When reinstalling the CIS unit, first insert the left end under the lock arm, put the CIS unit into the top cover, and move it to the right. After installation, wipe fingerprints or dust off the CIS surface with a soft cloth. · When reinstalling the CIS shield plate, secure it to the top cover together with the feed roller grounding spring and FG wire. The FG wire should be routed as illustrated in Subsection 4.1.26, "Harness routing C." · Route the CIS harness on the underside of the top cover as illustrated in Subsection 4.1.26, "Harness routing C."
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4.1.8 Hook Switch PCB

(1) From the top cover, unhook the hook switch PCB and take it out. (2) Take out the hook SW-main harness from the cable guides provided on the scanner drive unit.

Reassembling Notes

· Route the hook SW-main harness through the cable guides provided on the scanner drive unit as illustrated in Subsection 4.1.26, "Harness routing B."

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4.1.9 Document Feed Roller ASSY, Scanner Drive Unit, and Document Ejection Roller ASSY

(1) At the right end of the document feed roller ASSY, unlock the pawled bushing and pull it to the left. Then remove the document feed roller ASSY together with the pawled bushing. (2) At the right end of the pressure roller shaft, press the latch to the rear and take out the pressure rollers and their shaft. Then remove the pressure roller springs.

(3) Remove the two screws from the scanner drive unit. (4) Lift up the scanner drive unit together with the document ejection roller ASSY. The bushing also comes off.

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(5) Remove the screw from the scanner motor and take off the motor from the scanner drive unit.

Reassembling Notes

· When securing the scanner motor to the scanner drive unit, face the motor connector up as shown above. · Before putting the scanner drive unit into the top cover, make sure that the stopper of bushing L ("a" in Figure A given on the next page) faces up when viewed from the top. Then move bushing L to the right to fit it in the cutout provided in the top cover. · Before securing the scanner drive unit to the top cover with two screws, set the document ejection roller ASSY into place.

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4.1.10 Separation Roller and its Gear

(1) Turn the top cover upside down. Place the top cover with its rear edge facing towards you. (2) Slightly push down the lock arm and move the separation roller gear to the left together with its bushing L ("a" in the illustration given below). Then take them out from the top cover. (3) Move the separation roller to the left and take it out together with its bushing S ("b"). (4) Slightly push down the lock arm again and remove the bushing L ("c") to the left.

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Reassembling Notes

· The separation roller and its related parts use three bushings (two bushings L and one bushing S). When fitting those bushings, be careful with the direction of their flanges and stoppers as shown on the previous page. What follows is the installation procedure of the separation roller and its related parts. 1) Turn the top cover upside down. Place the top cover with its rear edge facing towards you. 2) Lightly push down the lock arm and fit bushing L ("c") to the top cover with its flange facing to left and with its stopper facing up. (See Figure C on the previous page.) 3) Set bushing S ("b") onto the separation roller shaft with its flange facing towards the roller. First insert the left end of the roller shaft into bushing L ("c") and then insert the right end to the top cover with the stopper of bushing S ("b") facing down. (See Figure B.) 4) Set bushing L ("a") onto the separation roller gear shaft with its flange facing towards the gear. Insert the right end of the gear shaft through the cutout provided in the top cover and engage it with the separation roller shaft. Make sure that the separation roller gear is locked by the lock arm. 5) Turn the top cover to the normal position. Move bushing L ("a") to the right so that it will be fitted to the cutout provided in the top cover with its stopper facing up when viewed from the top. (See Figure A.) · Once removed, the separation roller film will become unusable and new one will have to be put back in. When attaching a new film, align its left and top edges with the left and top edges of the recessed section as illustrated below. In particular, take care not to let the film override the rear edge of the recessed section.

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4.1.11 Heat-fixing Unit, FU Lamp, and Paper Ejection Sensor Actuator

(1) Remove the two screws from the heat-fixing unit. (2) Lift up the heat-fixing unit and disconnect the blue and brown heater wires (of the heater harness) from the heat-fixing unit. Then disconnect the heater thermistor harness from the EL (eraser lamp) board. (3) Remove the paper ejection sensor actuator from the bottom of the heat-fixing unit.

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(4) To take out the FU lamp from the heat-fixing unit, remove two screws "a." (5) Fully open the upper cover and remove it. (6) Unlatch the idle gear 16 and remove it. (7) Loosen screw "b." (8) Remove screw "c" and take out the lock plate. (9) Slightly lift up the left end of the heater roller and hold the left end of the FU lamp. While pinching the fuse plate R with your right hand, pull out the FU lamp from the heater roller. CAUTION: Do not touch the FU lamp. If you have touched it, clean it thoroughly with alcohol.

Reassembling Notes

· When setting the FU lamp into the heat-fixing unit, be sure to insert the right edge of the wire into the folded fuse plate R. · A new heat-fixing unit will be provided with the heater thermistor harness being taped to the unit. When installing the unit, remove the tape. · Route the blue and brown heater wires on the main cover as illustrated in Subsection 4.1.26, "Harness routing F."

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4.1.12 Laser Unit and Toner Sensor PCB

(1) Disconnect the polygon motor flat cable, toner sensor harness, and laser diode harness from the main PCB. (2) Remove the three screws from the laser unit. (3) Lift up the laser unit. NOTE: When handling the laser unit, take care not to touch the inside of the unit, glass, or mirror. NOTE: On the small PCB at the right side of the laser unit is a 2-pin connector which is for the adjustment in the factory. Do not disturb it.

Reassembling Notes

· On the underside of the laser unit, route the laser diode harness, polygon motor flat cable, and toner sensor harness as illustrated in Subsection 4.1.26, "Harness routing G." · Before putting the laser unit back into place, check for any toner particles, paper dust or dirt, and clean them out. · Make sure that the sponge is placed below the laser unit.
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4.1.13 Main PCB

(1) Disconnect the following harnesses and flat cable from the main PCB: · NCU harness · Low-voltage power harness · Main motor harness · High-voltage power flat cable · Cover/registration sensor & fan harness · Solenoid harness · Speaker harness (2) Remove two screws "a" from the main shield. (3) Remove two screws "b" from the parallel interface connector. (4) Remove two screws "c" from the main PCB and then take it off from the PCB support. (The upper one of these screws has been removed to release the FG wire when you have removed the top cover in Subsection 4.1.6.)

"a" and "c": Taptite, cup S M3x6 "b": Taptite, pan S M3x12 Reassembling Notes

· Be sure to route the harnesses and flat cable as illustrated in Subsection 4.1.26, "Harness routing A." · After you replace the main PCB, be sure to follow the flowchart given on the next page.
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Setting up the main PCB after replacement
Replaced with a new main PUB? Y N (Replaced with one used)

Flash ROM or masked ROM on the new main PUB?

Masked ROM

Flash ROM or masked ROM on the new main PUB? Flash ROM Install the update program onto the flash ROM. (For details about the installation procedure, refer to CHAPTER 2.) The "DOWNLOADING" is shown on the LCD.

Masked ROM

Flash ROM
Install the update program onto the flash ROM. (For details about the installation procedure, refer to CHAPTER 2.) The "DOWNLOADING" is shown on the LCD.

Upon completion of the installation, the facsimile equipment initializes the EEPROM while showing the "PARAMETER INIT."

The "PLEASE WAIT" appears on the LCD.

The calendar clock appears. After completion of initialization, the equipment returns to the initial stage of the maintenance mode. Then perform the following: - EEPROM customizing [Function code: 74] - CIS scanner area setting [Function code: 55] (Refer to CHAPTER 5, Subsections 5.3.12 and 5.3.11)

Make the equipment enter the maintenance mode and then perform the following: - EEPROM customizing [Function code: 74] - EEPROM parameter initialization [Function code: 01] - CIS scanner area setting [Function code: 55] (Refer to CHAPTER 5, Subsections 5.3.12, 5.3.1, and 5.3.11.)

Make the equipment exit from the maintenance mode by pressing the 9 key twice. (Refer to CHAPTER 5.) The calendar clock appears.

Set an ID code. (Refer to CHAPTER 2.)

End

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4.1.14 Bottom Plate

(1) Turn the machine upside down. (2) Remove the nine screws (four "x" and five "y") from the bottom plate, then lift it up.

"x": Taptite, cup S M3x6 "y": Taptite, bind B M4x12

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4.1.15 Low-voltage Power Supply PCB

(1) Remove screw "a" and take off the low-voltage insulator sheet. (2) Remove screws "b" and "c" from the low-voltage power supply PCB and grounding wire, respectively. (3) Remove screw "d" and lift up the power inlet support. For the new type of the power inlet support having an opening: You need to cut off the binder that fastens the blue and brown lead wires of the AC power cord to the power inlet support. (4) Slightly lift up the low-voltage power supply PCB and disconnect the low-voltage power harness and heater harness (of the blue and brown wires).
Power inlet support "a" Low-voltage insulator sheet "c" "d"

"b" Low-voltage power supply PCB

(Opening provided in the new type of the power inlet support) Grounding wire Heater harness

Low-voltage power harness

"e" U-shaped cutout

Main cover (placed upside down)

"g" Opening provided in the power supply shield "f" Openings provided in the power supply shield

"a," "b," and "d": Taptite, cup S M3x6 "c": Screw, pan (washer) M4x8DB Reassembling Notes

· Be sure to route the heater harness through U-shaped cutout "e" provided in the power supply shield. Then, route the AC power cable through the same cutout "e" on the heater harness. (Refer to Subsection 4.1.26, "Harness routing H." · Fit the front tabs of the low-voltage power supply PCB in openings "f." · Fit the front tab of the insulator sheet in opening "g."
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· To prevent the blue and brown lead wires of the AC power cord from getting damaged by the edge of the power inlet support or the end of screw "c," be sure to observe the following routing instructions: For the power inlet support having no opening 1) Route the grounding wire between the boss and the power supply shield as shown below. 2) Push down the ferrite cores of the AC lead wires and grounding wire. 3) Secure the grounding terminal to the power inlet support with screw "c" at an angle shown below.

Push down these ferrite cores.

(Rear)

Power supply shield Boss

Screw "c"

Secure the grounding terminal at this angle.

Route the grounding wire between the boss and the power supply shield.

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For the new type of the power inlet support having an opening 1) Route the AC lead wires (blue and brown) through the opening provided in the power inlet support and pull them in the direction shown below to bring the ferrite cores closer to the opening. 2) Fasten the AC lead wires to the power inlet support with a binder.

Power inlet support Power inlet support B A View B 1 mm min.

1 mm max. View A Fasten the AC lead wires with a binder.

3) Secure the grounding wire to the power inlet support with screw "c."

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2 mm

max.

3 to 9 mm

Power inlet support Pull the AC lead wires in this direction.

4.1.16 High-voltage Power Supply PCB

(1) Remove the screw and take off the high-voltage insulator sheet. (2) Slightly lift up the high-voltage power supply PCB and disconnect the high-voltage power flat cable and EL (eraser lamp) harness.

High-voltage insulator sheet Taptite, bind B M4x12

High-voltage power supply PCB

High-voltage power flat cable

EL (eraser lamp) harness

Main cover (placed upside down)

Take care not to bend this high-voltage plate.

Reassembling Notes

· Fold the high-voltage power flat cable and route it as illustrated above. · Before reinstalling the high-voltage power supply PCB, check the high-voltage contacts for any toner particles, paper dust or dirt, and clean them out. · Take care not to bend the high-voltage plate.

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4.1.17 Cover/Registration Sensor PCB, Duct, and Fan

(1) Take off the duct by removing the two screws. (2) Unlatch the cover/registration sensor PCB and lift it up and out of the main cover. (3) Disconnect the fan harness from the PCB. (4) Take off the fan support by removing the screw. (5) Lift up the fan.

Reassembling Notes

· Route the fan harness on the fan as illustrated above. · Put the fan back into place with the label side facing outwards and with its harness directed as shown above.

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4.1.18 Top Cover Sensor Actuator

(1) Pull up the top cover sensor actuator.

4.1.19 Power Supply Shield

(1) Remove the two screws and lift up the power supply shield.

Reassembling Notes

· When reinstalling the power supply shield, route the low-voltage power harness through the opening and route the heater harness through U-shaped cutout "e" as shown above.
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4.1.20 Speaker

(1) Pull the speaker spring inwards and pull up the speaker together with the spring.

Reassembling Notes

· Put the speaker into place with its harness facing up. · Route the speaker harness through the latch together with the solenoid harness and main motor harness as shown above.

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4.1.21 Gear Drive Unit

(1) Make sure that the heat-fixing unit is removed. (2) Take out the heater harness from the cable guides provided on the top of the gear drive unit. (3) Remove the four screws and lift up the gear drive unit.

(4) Remove the two screws and take off the main motor.

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(5) To take off the paper feed solenoid, solenoid lever, or clutch release lever, remove the two screws.

Reassembling Notes

· If the friction spring in the gear drive unit slips off, fit the straight end of the spring in the support hole of the gear drive u