Brother DCP1400, MFC9760, MFC9860, MFC9880, MFC9700 Service Manual

MULTI-FUNCTION CENTER

SERVICE MANUAL

MODEL: MFC9800/MFC9700/DCP1400

MFC9880/MFC9860/MFC9760

© Copyright Brother 2002

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.

All products and company names mentioned in this manual are trademarks or registered trademarks of their
respective holders.

PREFACE

This publication is a Service Manual covering the specifications, construction, theory of operation,
and maintenance of the Brother machine. It includes information required for field troubleshooting
and repair--disassembly, reassembly, and lubrication--so that service personnel will be able to
understand machine function, to rapidly repair the machine and order any necessary spare parts.

To perform appropriate maintenance so that the machine 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 I. GENERAL DESCRIPTION

CHAPTER II. INSTALLATION

CHAPTER III. THEORY OF OPERATION

CHAPTER IV. DISASSEMBLY/REASSEMBLY AND LUBRICATION

CHAPTER V. MAINTENANCE MODE

CHAPTER VI. ERROR INDICATION AND TROUBLESHOOTING

Appendix 1. EEPROM Customizing Codes

Appendix 2. Firmware Switches (WSW)

Appendix 3. 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: JULY 2001 C
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.

CHAPTER I.

GENERAL DESCRIPTION

CHAPTER I. GENERAL DESCRIPTION

CONTENTS

1. MACHINE OUTLINE ................................................................................................. I-1

1.1 External Appearance and Weight ..................................................................... I-1

1.2 Components ..................................................................................................... I-1

2. SPECIFICATIONS..................................................................................................... I-2

1. MACHINE OUTLINE

1.1 External Appearance and Weight

The figure below shows the machine appearance and approximate dimensions.

Weight: Machine proper 15.2 kg

Machine (incl. drum unit & toner cartridge) 17.0 kg
In package 21.2 kg

1.2 Components

The machine consists of the following major components:

I - 1

2. SPECIFICATIONS

Model Name MFC9800 MFC9700
GENERAL

Print Engine Laser (ZLe) Laser (ZLe)
Modem Speed(bps) 33,600(Fax) 14,400(Fax)
Transmission Speed(sec.) Approx. 2 Approx. 5
ITU-T Group Super G3 G3
Coding Method MH/MR/MMR/JBIG MH/MR/MMR/JBIG
Input/Output Width 5.8"-8.5"/2.75"-8.5" 5.8"-8.5"/2.75"-8.5"
ADF(pages) up to 50 up to 50
LCD Size 16 Characters x 2 Lines 16 Characters x 1 Lines
On-Screen Programming Yes Yes
Back up Clock Yes (9 hours) Yes (1 hours)
Memory Capacity(Physical:MByte) 8 8
Back up Memory
Optional Memory
Optional Paper Tray Yes(250pages:LT-400) Yes(250pages:LT-400)
Dimensions (WxDxH) 19.4x18.0x16.8 inches 19.4x18.0x16.8 inches

Weight 35.2 lbs/(17 kg) 35.2 lbs/(17 kg)
Color Gray 1495 Gray 1495
Standby Mode Yes Yes
PC-Fax Protocol Compliance Class 2 Class 2
Simultaneous Operation Yes Yes
Data Modem No No
Energy Star Compliance (for U.S.A.) Yes Yes
LCD Back Light No No
Operating Environment Temperature 10 - 32.5 degrees Centigrade 10 - 32.5 degrees Centigrade
Humidity 20 - 80%(without condensation) 20 - 80%(without condensation)
Power Source 120VAC 50/60Hz 120VAC 50/60Hz
Power Consumption
(Sleep/Standby/Peak)
Demo Model N / A Yes([Start]+[Stop])

Less than 15W / 75W / 940W Less than 15W / 75W / 940W

Yes

16/32MByte(DIMM)

492x456x429 mm 492x456x429 mm

No
No

(1/4)

TELEPHONE

Automatic Redial Yes Yes
Handset No No
One-Touch Dial 32 (16x2) 8 (4x2)
Speed Dial 100 100
Telephone Index Yes Yes
Speaker Phone No No
Chain Dialing Yes Yes
Caller ID Yes Yes
Call Waiting Caller ID No No
Distinctive Ringing Yes Yes
Hold/Mute Key No No
Power Failure Dialing No No
Speaker Volume - ­Ring Volume - ­Handset Volume - ­PBX Feature No No
Transfer Method Flash Flash
Figures of One-Touch & Speed Dial 20 digits 20 digits
Resisterable Number Of Characters 15 char 15 char

I - 2

Model Nam

e

0

GENERAL

Print Engine Laser (ZLe)
Modem Speed(bps) ­Transmission Speed(sec.) ­ITU-T Group ­Coding Method ­Input/Output Width 5.8"-8.5"/2.75"-8.5"
ADF(pages) up to 50
LCD Size 16 Characters x 2 Lines
On-Screen Programming Yes
Backup Clock No
Memory Capacity(Physical:MByte) 8
Backup Memory No
Optional Memory No
Optional Paper Tray Yes(250pages:LT-400)
Dimensions (WxDxH) 19.4x18.0x16.8 inches

Weight 35.2 lbs/(17 kg)
Color Gray 1495
Standby Mode Yes
PC-Fax Protocol Compliance ­Simultaneous Operation Yes
Data Modem No
Energy Star Compliance (for U.S.A.) Yes
LCD Back Light No
Operating Environment Temperature 10 - 32.5 degrees Centigrade
Humidity 20 - 80%(without condensation)
Power Source 120VAC 50/60Hz
Power Consumption Less than 15W / 75W / 940W
(Sleep/Standby/Peak)
Demo Model N / A

DCP140

492x456x429 mm

(1/4)

TELEPHONE

Automatic Redial ­Handset ­One-Touch Dial ­Speed Dial ­Telephone Index ­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 ­Figures of One-Touch & Speed Dial ­Resisterable Number Of Characters -

I - 3

Model Name MFC9800 MFC9700
FAX

Internet FAX Available with Optional LAN Board Available with Optional LAN Board
Easy Receive/Fax Detect Yes Yes
Fax/Tel Switch Yes No
Super Fine Yes (TX & RX) Yes (TX & RX)
300dpi Transmission No No
Gray Scale 64 64
Contrast Yes (Auto/S.Light/S.Dark) Yes (Auto/S.Light/S.Dark)
Smoothing Yes Yes
Call Re servation Over Auto TX No No
Password Check No No
Enhanced Remote Activate Yes Yes
Multi Res o lu tion Tran smission No No
Multi Transmission No No
Next-Fax Reservation Yes (Dual Access) Yes (Dual Access)
Delayed Timer Yes (up to 50) Yes (up to 50)
Polling (RX on ly ) Yes (S td/S e q) Yes (Std/Seq)
Quick Scan (Memory Transmission) Approx. 3 sec./page (A4:standard) Approx. 3 sec./page (A4:standard)
Broadcasting Yes (182 locations) Yes (158 locations)
Batch Transmission Yes Yes
Auto Reduction Yes Yes
Out-of-Paper Reception *2 up to 600 pages up to 600 pages
Dual Access Yes Yes
ECM (E rror C o rrec tion Mode) Yes Yes
ITU SUB Addressin g No No
Group Dial Yes (6) Yes (6)
Resend After Receive Error Signal No No
Confidential No No
Station ID 1 (20digits/20char) 1 (20digits/20char)
Off Hook Alarm No No
Remote Maintenance Yes Yes
Call Reservation Over Manual TX No No
RX Mode Indication LCD LCD
Resolution Indication LED LCD

(2/4)

LIST REPORT

Activity Re po rt/Jou rn a l R e po rt Yes (up to 200) Yes (up to 20 0 )
Transmission Verification Report Yes Yes
Coverpage Yes (Super) Yes (Super)
Help List Yes Yes
Call Back Message No No
Caller ID List Yes Yes

INTERFACE

External TAD Interface Yes Yes
Missing Lin k/P C Inte rface No No
Host Interface Yes (Auto switching : Parallel/USB *3) Yes (Auto switching : Parallel/USB *3)
LAN Interface Availabl e wi th Option LAN Board Available with Option LAN Board

I - 4

Model Name DCP1400
FAX

Internet FAX ­Easy Receive/Fax Detect ­Fax/Tel Switch ­Super Fine ­300dpi Transmission ­Gray Scale ­Contrast ­Smoothing ­Call Reservation Over Auto TX ­Password Check ­Enhanced Remote Activate ­Multi Res o lu tion Tran smission ­Multi Transmission ­Next-Fax Reservation ­Delaye d Timer ­Polling (RX on ly ) ­Quick Scan (Memory Transmission) ­Broadcasting ­Batch Transmission ­Auto Reduction ­Out-of-Paper Reception *2 ­Dual Acce s s ­ECM (E rror C o rrec tion Mode) ­ITU SUB Addressing ­Group Dial ­Resend After Receive Error Signal ­Confidential ­Station ID ­Off Hook Alarm ­Remote Maintenance ­Call Reservation Over Manual TX ­RX Mode Indication ­Resolution Indication -

(2/4)

LIST REPORT

Activity Report/Journal Report ­Transmission Verification Report ­Coverpage ­Help List ­Call Back Message ­Caller ID List -

INTERF ACE

External TAD Interface No
Missing Lin k/P C Inte rface No
Host Interface Y es (A uto switching : Parallel/U SB *3)
LAN Interface No

I - 5

(3/4)

Model Name MFC9800 MFC9700
PRINTER Yes Yes

Color/Mono Mono M ono
Engine Type Laser(ZL) Laser(ZL)
Resolution(dpi) 600x600 600x600
Speed(ppm) up to 14 up to 14
Paper Capacity(sheets) 250 250
Additional Paper Capacity(sheets) 250 (User Option) 250 (User Option)
Output Paper Capacity(sheets) 150 150
Standard Print Language Windows GDI(600x600) Windows GDI(600x600)
Emulation PCL5e PCL4
Resident Fonts 24 Bitmap (PCL5 Comp.) 24 Bitmap (PCL4 Comp.)
Fonts Disk Based Yes (35 TrueType) Yes (35 TrueType)
Paper Handling Size LTR, LGL, A4, B5, A5, EXE L TR , LGL, A4, B5, A5, EXE
Manual Feed Slot Custom Size (2.75x5 - 8.5x14) Custom Size (2.75x5 - 8.5x14)

Envelop(DL/C5/CM10/M ona) Envelop(DL/C5/CM10/Mon a)
Other Paper Type OHP, Envelopes, Labels, Organizer OHP, Envelopes, Labels, Organizer
Sheet Weight (Paper Cassette) 64-105 g/m2 (17 - 28 lb) 64-105 g/m2 (17 - 28 lb)
(Manual Slot) 64-157 g/m2 (17 - 43 lb) 6 4-157 g/m2 (17 - 43 lb)
Printer Driver Win95/98(SE)/Me and NT4.0/2000 Win95/98(SE)/Me and NT4.0/2000

Driver with Au to Ins ta l le r P r o gra m Driver with Auto In s ta lle r Program
Utility Software Yes (Remote Printer Console for PCL6) Yes (Remote Printer Console for PCL4)
Toner Life (Standard Yield : TN-430) 6,000 A4 pages@5% 6,000 A4 pages@5%
(High Yield : TN-460) 3,000 A4 pages@5% 3,000 A4 pages@5%
Drum Life (DR400) up to 20,000 pages up to 20,000 pages
Interface Type Parallel & USB *3 Parallel & USB *3
Bundled Cable Yes (Parallel) Yes (Parallel)

COPY

Speed(cpm) up to 14 up to 14
Multi Copy(Stack) up to 99 up to 99
Multi Copy(Sort) Yes Yes
Multi Copy(2in1) Yes Yes
Multi Copy(4in1) Yes Yes
Poster Yes Yes
Reduction/Enlargement(%) 25 -- 400 in 1% increments 25 -- 400 in 1% increments
Resolution(dpi) 600x600(600x300:Optical Scanning) 600x600(600x300:Optical Scanning)

SCANNER Yes Yes

Color/Mono Color Color

Resolution(Optical : dpi)
Resolution(Int. : dpi)

Color Depth(bit) 24(8bitx3) 24(8bitx3)
Gray Scale 256 256
TWAIN Compliant Yes Yes
Forma ts (Import) TIFF/BMP /PCX/D CX/BTF /BTX/M A X TIFF/BMP/PCX/D CX/BTF /BTX/M AX
Formats(Export) TIFF/BMP/MAX TIFF/BMP/MAX
OCR Yes(ScanSoft TextBridge) Yes(ScanSoft TextBridge)
[Scan] Key es(Scan to E-mail, Scan Image, Scan/OCR es(Scan to E-mail, Scan Image, Scan/OCR

600x300(Max. 600x2,400) 600x300(Max. 600x2,400)

9,600x9,600 9,600x9,600

I - 6

Model Name DCP1400
PRINTER Yes

Color/Mono Mono
Engine Type Laser(ZL)
Resolution(dpi) 600x600
Speed(ppm) up to 14
Paper Capacity(sheets) 250
Additional Paper Capacity(sheets) 250 (User Option)
Output Paper Capacity(sheets) 150
Standard Print Language Windows GDI(600x600)
Emulation PCL4
Resident Fonts 24 Bitmap (PCL4 Comp.)
Fonts Disk Based Yes (35 TrueType)
Paper Handling Size LTR, LGL, A4, B5, A5, EXE
Manual Feed Slot Custom Size (2.75x5 - 8.5x14)

Envelop(DL/C5/CM10/Mona)
Other Paper Type OHP, Envelopes, Labels, Organizer
Sheet Weight (Paper Cassette) 64-105 g/m2 (17 - 28 lb)
(Manual Slot) 64-157 g/m2 (17 - 43 lb)
Printer Driver Win95/98(SE)/Me and NT4.0/2000

Driver with Auto Installer Program
Utility Software Yes (Remote Printer Console for PCL4)
Toner Life (Standard Yield : TN-430) 6,000 A4 pages@5%
(High Yield : TN-460) 3,000 A4 pages@5%
Drum Life (DR400) up to 20,000 pages
Interface Type Parallel & USB *3
Bundled Cable Yes (Parallel)

(3/4)

COPY

Speed(cpm) up to 14
Multi Copy(Stack) up to 99
Multi Copy(S ort) Yes
Multi Copy(2in1) Yes
Multi Copy(4in1) Yes
Poster Yes
Reduction/Enlargement(%) 25 -- 400 in 1% increments
Resolution(dpi) 600x600(600x300:Optical Scanning)

SCANNER Yes

Color/Mono Color

Resolution(Optical : dpi)
Resolution (Int. : d p i)

Color Depth(bit) 24(8bitx3)
Gray Scale 256
TWAIN Compliant Yes
Formats(Import) TIFF/BMP/PCX/DCX/BTF/BTX/MAX
Formats(Export) TIFF/BMP/MAX
OCR Yes(ScanSoft TextBridge)
[Scan] Key es(Scan to E-mail, Scan Image, Scan/OCR

600x300(Max. 600x2,400)

9,600x9,600

I - 7

Model Name MFC9800 MFC9700

MESSAGE CENTER/MESSAGE MANAGER

No No

ICM Recording Time No No
Page Memory No No
OGM (MC/MC Pro/Paging) No No
TAD Type No No
Memo/Recording Conversation No No
Toll Saver No No

Fax Forwarding Yes Yes
Fax Retrieval Yes Yes
Paging Yes Yes
Remote Access Yes Yes

(4/4)

MESSAGE CENTER Pro/MESSAGE MANAGER Pro

No No

Fax/Voice Mail Box No No
Fax/Voice on Demand No No

MESSAGE CENTER (PC MC)

No No

Fax Forwarding No No
Paging No No
ICM Recording Time No No
OGM MC/MC Pro/Paging No No
Fax/Voice Mail Box No No
Fax/Voice on Demand No No

VIDEO CAPTURE

No No

Video Capture No No
Video Print No No
Video Format No No

BUNDLED SOFTWARE

For Windows

OS Support Win95/98(SE)/Me, WinNT4.0/2000 Win95/98(SE)/Me, WinNT4.0/2000
Printer Driver (Brother) Yes Yes
Viewer (ScanSoft PaperPort Ver.6.5) Yes Yes

- include Text Bridge OCR
TWAIN (Brother) Yes Yes
PC Fax (Brother) Yes Yes

- TX: FAX Share / RX: Class2

For iMAC/G3/G4

OS Support Printer Driver 8.5 - 9.1 8.5 - 9.1
TWAIN 8.6 - 9.1 8.6 - 9.1
Printer Driver (Brother) Yes Yes
Viewer (ScanSoft PaperPort for MAC) Yes Yes
TWAIN (TII/Brother) Yes Yes
PC Fax (TX[FAX Share] only:Brother) Yes Yes

*2: Brother #1 Chart, JBIG coding, Standard Resolution
*3: USB - Windows98/ 98S E/Me, Windows2000 only.

I - 8

Model Name DCP1400

MESSAGE CENTER/MESSAGE MANAGER

No

ICM Recording Time ­Page Memory ­OGM (MC/MC Pro/Paging) ­TAD Type ­Memo/Recording Conversation ­Toll Saver -

Fax Forwarding ­Fax Retrieval ­Paging ­Remote Access -

(4/4)

MESSAGE CENTER Pro/MESSAGE MANAGER Pro

No

Fax/Voice Mail Box ­Fax/Voice on Demand -

MESSAGE CENTER (PC MC)

No

Fax Forwarding ­Paging ­ICM Recording Time ­OGM MC/MC Pro/Paging ­Fax/Voice Mail Box ­Fax/Voice on Demand -

VIDEO CAPTURE

No

Video Capture No
Video Print No
Video Format No

BUNDLED SOFTWARE

For Windows

OS Support Win95/98(SE)/Me, WinNT4.0/2000
Printer Driver (Brother) Yes
Viewer (ScanSoft PaperPort Ver.6.5) Yes

- include Text Bridge OCR
TWAIN (Brother) Yes
PC Fax (Brother) No

- TX: FAX Share / RX: Class2

For iMAC/G3/G4

OS Support Printer Driver 8.5 - 9.1
TWAIN 8.6 - 9.1
Printer Driver (Brother) Yes
Viewer (ScanSoft PaperPort for MAC) Yes
TWAIN (TII/Brother) Yes
PC Fax (TX[FAX Share] only:Brother)

No

*2: Brother #1 Chart, JBIG coding, Standard Resolution
*3: USB - Windows98/ 98S E/Me, Windows2000 only.

I - 9

Model Name MFC- 9880 MFC-9860

(

)

e

y

%

e

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ZLe-FB(w/ Modem ) ZLe-FB(w/ Modem )

GENERAL

Print Engine Laser (ZL) Laser (ZL)
Modem Speed(bps) 33,600(Fax) 33,600(Fax)
Transmissi on Speed(sec.) Approx. 2 (brother#1 chart, JBIG) Approx. 2 (brother#1 chart, JBIG)
ITU-T Group Supper G3 Supper G3
Cod ing Method MH/ MR/MMR/JBIG MH/MR/ MMR/ J BI G
Input/Output Width FB;8.5"X11"ADF;5.8"-8.5/2.75"-8.5" FB;8.5"X11"ADF;5.8"-8.5/2.75"-8. 5"
ADF(pages) up to 50 up to 50
LCD size 16 Characters x 2 lines 16 Characters x 2 li nes
On-Screen Programming Yes Yes
Back up Clock Yes (9 hours) Yes (9 hours)
Memory Capacity(physical) 8MB(RAM) 8MB(RAM)
Memory Backup Yes( Max. 4 days ) Yes( Max. 4 days )
Optional Memory Yes (16/32MB:DIMM) Yes (16/32MB:DIMM)
Dimensions w/ Carton
Dimensions w/o Carton (WxDxH)
Weight w/o Carton (WxDxH) 17.0Kg 17.0Kg
Weight w/ Carton (WxDxH) 21.2Kg 21.2Kg
Color Gray 1495 Gray 1495
Standby Mode Yes Yes
PC-Fax Protocol Compliance Class 2 No
Simultaneous Operation Yes (Print/ Fax,Pri nt/Copy,Print/Scan) No
Data Modem No No
Energy Star Compliant N/A N/A
LCD Back Light No No
Operating Environment Temperatur
Humidit
Power Source 220-240VAC 50/60Hz 220-240VAC 50/60Hz
Power Consumption (Sleep/Standby/Peak) 15W/75W/ 940W 15W/75W/940W
Demo Print No No

WxDxH

598 x 567 x 580 mm 598 x 567 x 580 mm
492 x 456 x 429 mm 492 x 456 x 429 mm

10 - 32.5 degrees Centigr ade

20% - 80

10 - 32.5 degrees Centigrad

20% - 80

(1/4)

TELEPHONE

Automatic Redial Yes Yes
Handset No No
One-Touch Dial 32 (16x2) 32 (16x2)
Speed Dial 100 100
Telephone Index Yes(Normal) Yes(Normal)
Speaker Phone No No
Chain Dialing Yes Yes
Caller I D No No
Call Waiting Caller ID No No
Distinctive Ringing Yes(UK, DEN only) Yes(UK, DEN only)
Hold/Mute Key No No
Power Failur e Diali ng No No
Speaker Volume Yes (3 steps + OFF) Yes (3 steps + OFF)
Ring Volume Yes (3 steps + OFF) Yes (3 steps + OFF)
Handset Volume No No
PBX Feature Yes Yes
Transfer Method Flash Flash
Figures of One-Touch & Speed Dial 20 digits 20 digits
Resisterable Number Of Characters 15 charact ers 15 characters

I - 10

Model Name MFC-9760

(

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ZLe-FB(w/out Modem )

GENERAL

Print Engine Laser (ZL)
Modem Speed(bps) ­Transmissi on Speed(sec.) ­ITU-T Group ­Coding Method ­Input/Output Width FB;8.5"X11"ADF;5.8"-8.5/2.75"-8.5"
ADF(pages) up to 50
LCD size 16 Characters x 2 lines
On-Screen Programming Yes
Back up Clock Yes (1 hour)
Memory Capacity(physical) 8MB(RAM)
Memor y Ba ckup No
Optional Memory Yes (16/32MB:DIMM)
Dimensions w/ Carton
Dimensions w/o Carton (WxDxH)
Weight w/o Carton (WxDxH) 17.0Kg
Weight w/ Carton (WxDxH) 21.2Kg
Color Gray 1495
Standby Mode Yes
PC-Fax Protocol Compliance ­Simultaneous Operation Yes (Print/ Copy,Print/Scan)
Data Modem ­Energy Star Compliant N/A
LCD Back Light No
Operating Environment Temperatur
Humidit
Power Source 220-240VAC 50/60Hz
Power Consumption ( Sleep/Standby/Peak) 15W/75W/940W
Demo Print No

WxDxH

598 x 567 x 580 mm
492 x 456 x 429 mm

10 - 32.5 degrees Centigrad

20% - 80

(1/4)

TELEPHONE N/A

Automatic Redial ­Handset ­One-Touch Dial ­Speed Dial ­Telephone Index ­Speaker Phone ­Chain Dialing ­Caller ID ­Call Waiting Caller ID ­Distinctive Ringing ­Hold/Mute Key ­Power Failur e Diali ng ­Speaker Volume ­Ring Volume ­Handset Volume ­PBX Feature ­Transfer Method ­Figures of One-Touch & Speed Dial ­Resisterable Number Of Characters -

I - 11

(2/4)

X

A

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(

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Model Name MFC- 9880 MFC-9860

FAX Yes Yes

Internet FA
Easy Receive/Fax Detect Yes Yes
Fax/Tel Switch Yes with TEL/R key Yes with TEL/R key
Super Fine Yes (TX & RX) Yes (TX & RX)
300dpi Transmission No No
Gray Scale 64 64
Contrast Yes (Auto/Light /Dark) Yes (Auto/Light/Dark)
Smoothing Yes Yes
Call Reservation Over Auto TX No No
Password Check No No
Enhanced Remote Activate Yes Yes
Multi Resolution Transmission No No
Multi Transmission(>Dual Access) No No
Next-Fax Reservation(>Dual Access) No No
Delayed Timer Yes (50 timers/ 50 j obs ) Yes (50 timers/ 50 jobs )
Polling Yes (Std/Seq/Sec/Del) Yes (Std/Seq/Sec/Del)
Quick-Scan(Memory Transmission) *1 by ADF Yes as defaul t, approx. 2.8sec/page(A4 standard) Yes as default, approx. 2. 8sec/page(A4 standard)

Broadcasting Yes (182 locat ions) Yes (182 locations)
Batch Transmission Yes Yes
Auto Reduction Yes Yes
Out-of-Pa
Dual Access Yes Yes
ECM(Error Corr ection Mode) Yes Yes
ITU SUB Addressi ng No No
Group Dial Yes (6) Yes (6)
Station ID Yes (20digits/20characters ) Yes (20digits/20characters )
Off Hook Alarm No No
Remote Maintenance Yes Yes
Call Reservation Over Manual TX No No
RX Mode Indication LCD LCD
Resolution Indication LED LED

er Reception (ITU-T Chart) *

by Flatbed Yes as default, approx. 3.8sec/page(A4 standard) Yes as default, approx. 3.8sec/page(A4 standard)

vailable with Opti on(NC-8100h)

500 pages(JBIG/Standard Resolut ion) 500

JBIG/Standard Resolution)

N

LIST/REPORT

Activity Report/Journal Report Yes (up to 200) Yes (up to 200)
Transmissi on Verification Report Yes Yes
Coverpage Yes (Super) Yes (Super)
Help List Yes(Reports key) Yes(Reports key)
Call Back Message No No
Caller I D List No No

INTERFACE

External TAD Interfac
Missing Link/PC Interface(=Serial I/F ) No No
Host Interface (Serial) No No
Host Interface
Host Interface
LAN Interfac

IEEE1284
USB

vailable with Optional NC-8100h

Yes Ye

Yes No
Yes No

N

I - 12

Model Name MFC-9760

X

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FAX N/A

Internet FA
Easy Receive/Fax Detect ­Fax/Tel Switch ­Super Fine ­300dpi Transmission ­Gray Scale ­Contrast ­Smoothing ­Call Reservation Over Auto TX ­Password Check
Enhanced Remote Activate ­Multi Resolution Transmission ­Multi Transmission(>Dual Access) ­Next-Fax Reservation(>Dual Access) ­Delayed Timer
Polling ­Quick-Scan(Memory Transmission) *1 by ADF -

Broadcasting ­Batch Transmission
Auto Reduction ­Out-of-Pa
Dual Access ­ECM(Error Corr ection Mode) ­ITU SUB Addressi ng ­Group Dial ­Station ID ­Off Hook Alarm ­Remote Maintenance ­Call Reservation Over Manual TX ­RX Mode Indication ­Resolution Indication -

er Reception (ITU-T Chart) *2 -

by Flatbed -

-

(2/4)

LIST/REPORT No

Activity Report/Journal Report ­Transmissi on Verification Report ­Coverpage ­Help List N/A
Call Back Message ­Caller ID List -

INTERFACE

External TAD Interfac
Missing Link/PC Interf ace(=Serial I/F ) No
Host Interface (Serial) No
Host Interface
Host Interface (USB
LAN Interfac

IEEE1284

N

Ye
Ye

N

I - 13

Model Name MFC- 9880 MFC-9860

p

(ppm)

p (

)

)

)

(

)

(Hig

)

y

PRINTER

Color/Mono Mono No
Engine Type Laser(ZLe) No
Resolution(dpi) 600x600 No
S

eed
Paper Capacity(sheets) 250 250
Additional Paper Capacity(sheets) 250 (User Option) 250 (User Option)
Output Paper Capacity(sheets) 150 150
Standard Print Language Windows GDI(600x600) No
Emulation PCL5e No

Resident Fonts

Fonts Disk Based Yes (35 fonts ) No

Paper Handling Size LTR, EXE, A4, A5,A6, ISO B5, ISO B6 No

Manual Feed Slot

Other Paper Type OHP, Envelopes, Labels, Organizer No

Sheet Weight (Paper Cassette)

Printer Driver

Utility Software Yes (Remote Printer Console for PCL5e) No
Toner Life

Drum Life (DR-6000) up to 20,000 pages up to 20,000 pages
Bundled Cable No No

COPY

Color/Mono Mono Mono
Multi Copy(Stack) Yes ( up to 99 ) Yes ( up to 99 )
Multi Copy(Sort) Yes Yes
N in 1 2in1, 4in1 2in1, 4in1
Poster ( X by Y ) Yes ( 1in3x3 ) Yes ( 1in3x3 )
Reduction/Enlargement(%) 25 -- 400 in 1% increments 25 -- 400 in 1% increments
Resolution(dpi) 600x300 600x300

SCANNER

Color/Mono Color/Mono No
Resolution(Optical: dpi) 600x2,400 No
Resolution(Interpolated: dpi) 9,600x9,600 No
Colour Depth(bit) 24(8bit x 3) No
Gray Scale 256 No

TWAIN Compliant & Operating System

OCR Yes (TextBridge by ScanSoft ) No
Scan Key
Scan to Image key Yes No
Scan to OCR ke
Scan to E-MAIL key

Standard Yield : TN-6300

h Yield : TN-6600

(ADF

(Manual Slot

Yes ( Bitmap font: LetterGothic 16.66, OCR-A,

OCR-B, Scalable font: 49 fonts )

Custom Size (2.75x5 - 8.5x14)

Envelo

Win95/98(SE)/Me/NT4.0WS/2000Professinal

Win95/98(SE)/ME/NT4.0WS/2000Professional

Yes

up to 14 No

DL/C5/CM10/Mona

60 -105 g/m2 No
64 - 90 g/m2 No
60 -161 g/m2 No

MacOS 8.5-9.1

3,000 pages/A4@5% 3,000 pages/A4@5%
6,000 pages/A4@5% 6,000 pages/A4@5%

Yes Yes

Yes

MacOS8.6-9.1

No No

Yes No
Yes No

N/A

No

No

No

N/A

No

(3/4)

I - 14

Model Name MFC-9760

p

(ppm)

p (

)

)

(

)

%

)

%

y

)

PRINTER Yes

Col or /Mon o Mo no
Engine Type Laser(ZLe)
Resolution(dpi) 600x600
S

eed
Paper Capacit y(sheet s) 250
Additional Paper Capacity(sheets) 250 (User Option)
Output Paper Capacity(sheets) 150
Standard Print Language Windows GDI(600x600)
Emulation PCL5e

Resident Fonts

Fonts Disk Based Yes (35 fonts )

Yes ( Bitmap font: LetterGothic 16.66, OCR-A,

OCR-B, Scalable font: 49 f onts )

up to 14

(3/4)

Paper Handling Size LTR, EXE, A4, A5,A6, ISO B5, ISO B6

Manual Feed Slot

Other Paper Type OHP, Envelopes, Labels, Organizer

Sheet Weight (Paper Cassette) 60 -105 g/m2

Printer Driver

Utility Software Yes (Remote Printer Console f or PCL5e)
Toner Life
(High Yield : TN-6600
Drum Life (DR-6000) up to 20,000 pages
Bundled Cable No

COPY Yes

Col or /Mon o Mo no
Multi Copy(Stack) Yes ( up to 99 )
Multi Copy(Sort) Yes
N in 1 2in1, 4in1
Poster ( X by Y ) Yes ( 1in3x3 )
Reduction/Enlargement(%) 25 -- 400 in 1% increments
Resolution(dpi) 600x300

SCANNER Yes

Color/Mono Color/ Mono
Resolution(Opti cal: dpi) 600x2,400
Resolution(Interpol ated: dpi) 9,600x9,600
Colour Depth(bit) 24(8bit x 3)
Gray Scale 256

TWAIN Compliant & Operating System

OCR ScanSoft( TextBridge)
Scan Ke
Scan to Image key No
Scan to OCR key
Scan to E-MAIL key

Standard Yield : TN-6300

(ADF)

(Manual Slot

Custom Size (2.75x5 - 8.5x14)
Envelo

DL/C5/CM10/Mona

64 - 90 g/m2

Win95/98( SE)/Me/NT4.0WS/2000Prof essinal

Win95/98( SE)/ME/NT4.0WS/2000Professional

No ( possible only by POP UP Menu on PC

60 -161 g/m2

MacOS 8.5-9.1

3,000 pages/A4@5
6,000 pages/A4@5

Mac OS8. 6-9 .1

No
No

I - 15

Model Name MFC- 9880 MFC-9860

MESSAGE CENTER/MESSAGE MANAGER

ICM Recording Time N / A N / A
Page Memory N / A N / A
OGM (M C;M C Pro;P a gin g;F /T ) N / A N / A
TAD Type N / A N / A
Memo/Recording Conversation N / A N / A
Toll S ave r N / A N / A
Fax Forwarding Yes Yes
Fax Retrieval Yes Yes
Paging No No
Remote Access Yes Yes

(4/4)

MESSAGE CENTER Pro/MESSAGE M ANAGE R P ro

MESSAGE CENTER (PC MC) N/A N/A
VIDEO CAPTURE N/A N/A

BUNDLED SOFTWARE (For Windows)

Support OS Version
Printer Drive r Yes (Brother) No
Viewer Yes ( PaperPort by ScanSoft ) No
Pop Up Menu Yes No
TWAIN Yes (Bro th e r) No

PC Fax Yes (TX & RX by Brother) No

BUNDLED SOFTWARE (For iMAC)

Sup p o rt O S V e rs ion

Others
Printer Drive r Yes (Brother) No
Viewer No No
Pop Up Menu No No
TWAIN Yes (Bro th e r) No
PC Fax Yes (TX only by Brother) No

Win95/98(SE)/Me/NT4.0WS/2000Professional No

N/A N/A

MacOS8.5-9.1 No
MacOS8.6-9.1 No

*1: The figure is ideal, and refers onl y to the scanning period, but does not i nclude the feeding & output time of document.
*2: By Brother#1 chart, it c an store up to 600 pages.

I - 16

Model Name MFC-9760

Yes (Broth e r )

MacOS8.5-9.1

MacOS8.6-9.1

MESSAGE CENTER/MESSAGE MANAGER N/A

ICM R eco rdin g T i me ­Page Memory ­OGM (MC ;MC Pro;P a ging;F/T ) ­TAD Type ­Memo/Recording Conversation ­Toll S ave r ­Fax Forwarding ­Fax Retrieval ­Paging ­Remote Access -

(4/4)

MESSAGE CENTER Pro/MESSAGE MANAGER Pro

MESSAGE CENTER (PC MC) N/A
VIDEO CAPTURE N/A

BUNDLED SOFTWARE (For Windows)

Support OS Version
Prin ter Drive r
Viewer Yes ( PaperPort by ScanSoft )
Pop Up Menu Yes
TWA IN Y es (Brother)

PC Fax No

BUNDLED SOFTWARE (For iMAC)

Sup p ort OS V e rsio n

Others
Prin ter D river Yes (Brot her)
Viewer No
Pop Up Menu No
TWA IN Y es (Brother)
PC Fax No

Win95/98(SE)/Me/NT4.0WS/2000Professional

N/A

*1: The figure is ideal, and refers onl y to the scanning period, but does not i nclude the feeding & output time of document.
*2: By Brother#1 chart, it c an store up to 600 pages.

I - 17

CHAPTER

INSTALLATION

II.

CHAPTER 2 INSTALLATION

CONTENTS

1. INSTALLING THE UPDATE DATA TO THE FACSIMILE MACHINE............................. II-1

2. SETTING ID CODES TO FACSIMILE MACHINES......................................................... II-3

1. INSTALLING THE UPDATE DATA TO THE FACSIMILE MACHINE

If you want to update the current program stored in the flash ROM of the main PCB to the newer
version or after you replace the main PCB, install the update program onto the flash ROM.

The program installation requires a PC/AT-compatible computer (which is capable of
running MS-DOS 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.

← 1st row

← 2nd row

(7) Turn on your computer.

II-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

Where filename is an update data file, e.g., 9800x.upd.

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.

II-2

2. SETTING ID CODES TO FACSIMILE MACHINES

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 the facsimile machine to your PC (See the illustration on page II-1.)

(1) Make sure that your PC is turned off.

(2) Make sure that the machine's power cord is unplugged from a wall socket or other power

source.

(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 or other power source.

(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 V, Section 1) and then press the 1 key twice
(Subsection 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).

II-3

CHAPTER III.

THEORY OF OPERATION

CHAPTER III. THEORY OF OPERATION

CONTENTS

1. OVERVIEW ............................................................................................................... III-1

2. MECHANISMS .......................................................................................................... III-2

2.1 Scanner Mechanism........................................................................................ III-3

2.2 Laser Printing Mechanism............................................................................... III-5

2.2.1 Paper pick-up and registration mechanism .............................................. III-5

2.2.2 Print process mechanism.......................................................................... III-6

2.2.3 Heat-fixing mechanism .............................................................................. III-8

2.2.4 Paper ejecting mechanism......................................................................... III-9

2.3 Sensors and Actuators .................................................................................... III-10

3. CONTROL ELECTRONICS ...................................................................................... III-13

1. OVERVIEW

III - 1

* Provided on models supporting facsimile function.

2. MECHANISMS

The machine is classified into the following mechanisms:

 SCANNER MECHANISM - ADF mechanism

 LASER PRINTING MECHANISM - Paper pick-up and registration mechanism

 SENSORS AND ACTUATORS

- Document scanning mechanism

- Print process mechanism (consisting of charging,
exposing, developing, and transferring processes) with
paper feeding mechanism

- Heat-fixing mechanism with paper feeding mechanism

- Paper ejecting mechanism

III - 2

2.1 Scanner Mechanism

This mechanism consists of the following:

- document tray ASSY which consists of a document chute and document tray,

- automatic document feeder (ADF) unit which consists of a document feed roller ASSY, document
ejection roller ASSY, ADF motor, and document front and rear sensors, and

- scanner unit which consists of a scanner top cover, CCD unit, CCD drive mechanism, CCD HP
sensor, and scanner base.

For details about the sensors, refer to Section 2.3.

III - 3

This scanner mechanism supports a dual scanning system.

(1) If you set documents with their faces up on the document chute and start the scanning

operation, the ADF motor rotates so that the document feed roller ASSY feeds those
documents into the ADF unit, starting from the top sheet to the bottom, page by page. Each
document curves downwards and turns to the right so as to advance above the CCD unit, and
then it is fed out to the document tray with the document ejection roller ASSY.

This way, documents move above the CCD unit being kept in a stationary position.

(2) If you open the scanner unit, put a sheet of document (or put a bound book opened) on the

glass of the scanner top cover, close the scanner unit, and start the scanning operation, then
the CCD drive mechanism will be driven. That is, the CCD motor rotates and its rotation will be
transmitted via the gear train to the CCD drive belt.

The CCD unit, which is supported and guided by the CCD rail, is secured to the CCD drive
belt. Clockwise and counterclockwise rotations of the CCD motor move the CCD unit to the
right and left, respectively.

In this scanning system, the CCD unit moves horizontally beneath a document being kept in
stationary position.

The CCD unit contains a charge coupled device (CCD) image sensor. The cold-cathode
fluorescent lamp illuminates a document and the reflected light of the scanned image data is
transmitted via the mirrors into the lens which reduces the scanned data so as to form the image on
the CCD.

III - 4

2.2 Laser Printing Mechanism

2.2.1 Paper pick-up and registration mechanism

III - 5

At the 1st stage, the controller drives the main motor without energizing the solenoid so that the
paper feed roller simply idles.

At the 2nd stage, the controller energizes the solenoid so that the paper feed roller no longer rotates
and the paper pick-up roller starts rotating to pick up paper into the machine, a sheet at a time.
After the leading edge of the pulled-in paper passes through the manual insertion sensor actuator,
the paper is further fed for the specified time length. Accordingly, the leading edge will reach the
paper feed roller where the paper skew will be eliminated.

At the 3rd stage, the controller deenergizes the solenoid to rotate the paper feed roller for feeding
paper to the transfer block in the drum unit.

When the leading and trailing edges of the paper pass through the registration sensor actuator, the
sensor signals them to the controller. According to those signals, the controller may determine the
first print position on the paper.

2.2.2 Print process mechanism

III - 6

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 four
processes: charging, exposing, developing, and transferring processes.

III - 7

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.

The controller monitors the internal resistance of the heater thermistor to keep the surface
temperature of the heater roller constant by turning the halogen heater lamp on and off.

III - 8

2.2.4 Paper ejecting mechanism

Outer chute

Paper ejection roller

Exit roller

Jam sensor actuator

(Front)

Paper ejection sensor actuator

Heat-fixing unit

Paper

After the paper passes through the heat-fixing process, it will be ejected from the heat-fixing unit by
the paper ejection roller.

If the leading edge of the paper pushes down the actuator of the paper ejection sensor, the sensor
signals the start of paper ejection. If the trailing edge has passed through the sensor actuator, the
sensor signals the completion of paper ejection.

If the jam sensor actuator will not be pushed up within the specified period after the leading edge of
the paper pushes down the paper ejection sensor actuator, then the controller will interpret such an
event as a paper jam inside the heat-fixing unit and display a jam error on the LCD.

The paper will be turned over along the outer chute and ejected onto the main cover by the exit
roller.

III - 9

2.3 Sensors and Actuators

This machine has 13 sensors: 10 photosensors*, two thermistors, and a mechanical switch as
described below.

(*Models supporting a 2nd paper cassette have two more photosensors--2nd registration sensor and 2nd
cassette sensor.)

Sensor name Type Located on

Document front sensor Photosensor Document sensor PCB

Document rear sensor Photosensor Document sensor PCB

Document tray open sensor Mechanical switch Harness support

CCD HP sensor Photosensor CCD unit

Manual insertion sensor Photosensor Engine PCB

Registration sensor Photosensor Engine PCB

Cassette sensor Photosensor Engine PCB

Paper ejection sensor Photosensor Paper ejection sensor PCB

Toner sensor Photosensor Toner sensor (LED) PCB and toner

Cover sensor Photosensor Toner sensor (LED) PCB

Jam sensor Photosensor Heat-fixing unit

Heater thermistor Thermistor Heat-fixing unit

In-casing temperature sensor Thermistor Left-hand plate of the main chassis

sensor (light-receiver) 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.

• Document tray open sensor which detects whether the document tray is closed.

• CCD HP sensor which detects whether the CCD unit is placed in the home position.

• Manual insertion sensor which detects whether paper is inserted manually through the paper slot

or whether paper fed through the paper cassette has jammed.

• Registration sensor which detects the leading and trailing edges of recording paper, which

allows the controller to determine the registration timing and check paper jam.

• Cassette sensor which detects whether the paper cassette is loaded.

• 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.

• Cover sensor which detects whether the front cover is closed.

• Jam sensor which detects whether paper is jammed inside the heat-fixing unit.

• Heater thermistor which allows the controller to monitor the temperature of the heater roller of

the fixing unit.

• In-casing temperature sensor which allows the controller to monitor the temperature inside the

machine.

III - 10

The above photosensors are a photo-interrupter consisting of a light-emitting diode and a light­sensitive transistor. Each of them has an actuator separately arranged as shown on the next page.

III - 11

NOTE: Document tray open sensor and jam sensor

The machine has a document tray open sensor and jam sensor (both of which are not shown in the
above illustration). The former is on the harness support; the latter is on the heat-fixing unit.

Location of Sensors and Actuators

III - 12

3. CONTROL ELECTRONICS

The hardware configuration of the machine is shown below.

External TEL

Line

VC
connector

2

PCB *

NCU PCB *

LAN
board *

2-pin

11-pin

3

1

Centronics
parallel
interface

Document tray
open sensor

USB

Main PCB

3-pin

Relay
PCB

14-pin

13-pin

8-pin

Paper ejection
sensor PCB

(Paper ejection
sensor)

2-pin

In-casing temperature
sensor (thermistor)

6-pin

Laser diode

5-pin

4-pin

5-pin

15-pin

5-pin

2-pin

Control panel PCB

Document sensor PCB

(Document front sensor
and document rear sensor)

ADF motor

ADF UNIT

CCD unit

CCD motor

Speaker

CCD HP sensor

SCANNER
UNIT

Low-voltage
power supply

5-pin

2-pin

12-pin

PCB

Heater (FU)
lamp

Heater

Engine PCB

(Manual insertion sensor,
registration sensor, and
cassette sensor)

thermistor

Jam
sensor

Heat-fixing unit

*1Provided on models supporting LAN interface.

2

Models supporting the video capture are not available now.

*

3

Provided on models supporting facsimile function.

*

4

Provided on models available with a 2nd paper cassette (as an option).

*

High-voltage
power supply
PCB

Fan

Solenoid

Configuration of Machine

LASER UNIT

Polygon
motor

2nd cassette
relay PCB *

4

Main motor

Toner sensor PCBs

(Toner sensor LED,
light-receiver, and
cover sensor)

LASER PRINTING UNIT

2nd paper cassette *

2nd cassette
sensor PCB
(2nd cassette
sensor & 2nd
registration sensor)

Solenoid

4

III - 13

CHAPTER IV.

DISASSEMBLY/REASSEMBLY AND

LUBRICATION

CHAPTER IV. DISASSEMBLY/REASSEMBLY AND

LUBRICATION

CONTENTS

1. DISASSEMBLY/REASSEMBLY ............................................................................... IV-1

n Safety Precautions .................................................................................................. IV-1

n Preparation.............................................................................................................. IV-2

n How to Access the Object Component ................................................................... IV-2

n Disassembly Order Flow......................................................................................... IV-3

1.1 Lower Rear Cover .............................................................................................. IV-4

1.2 Access Plates R and F ....................................................................................... IV-4

1.3 Paper Cassette................................................................................................... IV-5

1.4 Document Tray ASSY ........................................................................................ IV-6

1.5 Upper Rear Cover .............................................................................................. IV-8

1.6 ADF Unit and Document Tray Open Sensor ...................................................... IV-9

[ Disassembling the ADF Unit ]........................................................................... IV-11

1.7 Scanner Unit and Control Panel ASSY............................................................... IV-16

[ Disassembling the Scanner Unit ] .................................................................... IV-19

[ Disassembling the Control Panel ASSY ] ......................................................... IV-24

1.8 Relay PCB .......................................................................................................... IV-25

1.9 Speaker .............................................................................................................. IV-26

1.10 Scanner Mount ................................................................................................... IV-27

1.11 Paper Sub Tray and Tray Holder........................................................................ IV-30

1.12 VC Cover, VC Bracket, and VC Connector PCB (for models supporting

video capture)..................................................................................................... IV-31

1.13 Front Cover

Front Sub Cover (for models not supporting video capture) .............................. IV-32

1.14 Outer Chute and Paper Pinch Rollers ................................................................ IV-33

1.15 Main Cover ......................................................................................................... IV-34

1.16 Switch Cover (for models not equipped with a power switch) ............................ IV-35

1.17 Laser Unit ........................................................................................................... IV-36

1.18 Heat-fixing Unit and FU Lamp ............................................................................ IV-37

1.19 Fan ..................................................................................................................... IV-51

1.20 Drive Gear ASSY and Main Motor ASSY ........................................................... IV-53

1.21 NCU Shield and NCU PCB* ............................................................................... IV-55

1.22 Bottom Plate, Main PCB, and Bottom Insulation Film ........................................ IV-57

1.23 Low-voltage Power Supply PCB and Power Inlet............................................... IV-61

i

1.24 Inner Insulation Film, High-voltage Power Supply PCB, Engine PCB,

and 2nd Cassette Relay PCB*............................................................................ IV-63

1.25 Toner Sensor (light-receiver) PCB and Toner Sensor (LED) PCB..................... IV-65

1.26 Gears and Paper Pick-up Roller......................................................................... IV-66

1.27 Paper Feed Roller ASSY.................................................................................... IV-67

1.28 Clutch Levers, Cassette Guide L, and Solenoid................................................. IV-68

1.29 Cleaning of High-voltage Contacts and Grounding Contacts ............................. IV-69

2. LUBRICATION .......................................................................................................... IV-71

[ 1 ] ADF unit...................................................................................................... IV-71

[ 2 ] Scanner mount ........................................................................................... IV-72

[ 3 ] Drive gear ASSY ........................................................................................ IV-73

[ 4 ] Paper cassette ........................................................................................... IV-74

ii

1. DISASSEMBLY/REASSEMBLY

nnnn 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 accessing parts or units inside the

machine. 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 (inside this unit is a heater roller)

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 document 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. Unless otherwise specified,

tighten screws to the following torque values:

Taptite, bind B and cup B M3: 0.7 N•m

M4: 0.8 N•m

Taptite, cup S M3: 0.8 N•m

Other screws M3: 0.7 N•m

M4: 0.8 N•m

(10) 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.

(11) Before reassembly, apply the specified lubricant to the specified points. (Refer to Section 2 in

this chapter.)

(12) After repairs, check not only the repaired portion but also that the connectors and other related

portions function properly before operation checks.

IV - 1

nnnn Preparation

Prior to proceeding to the disassembly procedure,

(1) Unplug

- the power cord,

- the modular jack of the telephone line,

- the PC interface cable, and

- the modular jack of an external telephone set if connected. (Not shown below.)

(2) Remove

- the paper cassette and

- the drum unit (with toner cartridge loaded).

nnnn 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 heat-fixing unit, for example, first find it on the flow and learn its number (
this case). You need to remove parts numbered
access the heat-fixing unit.

• Unless otherwise specified, the disassembled parts or components should be reassembled in

the reverse order of removal.

in

, , , , , , , and so as to

IV - 2

nnnn Disassembly Order Flow

1.9

Speaker

1.4

Document tray
ASSY

1.10

Scanner mount

- Exit roller

1.12

VC cover, VC
bracket, and VC
connector PCB *

1.13

Front cover
Front sub cover *

1.15

Main cover

1.6

ADF unit and
document tray
open sensor

- Document
sensor PCB

1.7

Scanner unit

Scanner top cover

Scanner base

- CCD unit

- CCD rail

- CCD
motor

1

2

1.14

Outer chute

1.5

Upper rear cover

(NOTE 1)

- CCD flat
cable

(NOTE 2)

1.7

Control panel ASSY

- Control panel PCB

- FPC key

- LCD

1.11

Paper sub tray
and tray holder

1.14

Paper pinch
rollers

1.8

Relay PCB

1.21

1.22 1.22

1.1

Lower rear cover

1.2

1.21

NCU PCB *

1.22

Main PCB

(NOTE 4)

1.22

Bottom
insulation film

1.3

Paper cassette

Access plates
R and F

NCU shield

4

*1 Provided on models supporting video capture.

2

*

Provided on models not supporting video capture.

3

*

Provided on models not equipped with the power switch.

4

*

Provided on models supporting facsimile function.

5

*

Provided on models available with a 2nd paper cassette

(as an option).

(NOTE 1) On the document sensor PCB are these sensors

- Document front sensor

- Document rear sensor

On the harness support is a document tray open sensor.
(NOTE 2) On the scanner base is a CCD HP sensor.
(NOTE 3) On the heat-fixing unit are a jam sensor and heater thermistor.
(NOTE 4) The main PCB monitors the internal resistance of the in-casing

temperature sensor (thermistor) attached to the main chassis.

(NOTE 5) On the paper ejection sensor PCB is the paper ejection sensor

(photosensor).

(NOTE 6) On the engine PCB are these photosensors:

- Registration sensor

- Manual insertion sensor

- Cassette sensor
(NOTE 7) On the toner sensor (light-receiver) PCB is a light-sensitive

transistor.

(NOTE 8) On the toner sensor (LED) PCB are an LED and cover sensor

(photosensor).

Bottom plate

1.24

Engine PCB

1.24

Inner
insulation film

(NOTE 6)

1.24

2nd cassette
relay PCB *

1.24

High-voltage power
supply PCB

5

Paper ejection
sensor PCB

(NOTE 5)

1.23

Low-voltage power
supply PCB and
power inlet

1.16

Switch cover *

1.17

3

1.26

1.18 1.20

Laser unit

1.26

Gears
(Inner gear 54, gear 45 set P/R,
gear 20 P/R, gear 40/54, gear 45
set F/R, and gear 20 F/R)

Paper pick-up
roller

Heat-fixing unit

- Heater roller

- FU lamp

(NOTE 3)

1.19

Fan

1.28

Clutch levers and
cassette guide L

Drive gear ASSY

- Main motor ASSY

1.20

Develop joint and
front cover link (as cover
sensor actuator)

1.27

Paper feed
roller ASSY

IV - 3

1.28

1.25

Toner sensor (light-

receiver) PCB

1.25

Toner sensor
(LED) PCB

Solenoid

(NOTE 7)

(NOTE 8)

1.1 Lower Rear Cover

(1) Remove the three screws (two "a" and one "b") from the lower rear cover. Screw "b" is

provided on those models available with a 2nd paper cassette (as an option).

(2) Lightly pressing sections "X," pull out the lower rear cover.

"a" and "b": Screw, pan (washer) M4x10DB

1.2 Access Plates R and F

(1) Remove screw "c" that secures access plates R and F together to the main chassis.

(2) Remove screws "d" and "e" from access plate R.

(3) Take out access plates R and F together.

(4) Remove screw "f" to separate those access plates.

"c" to "f": Taptite, cup S M3x6

(Tightening torque: 0.5 N•m)

nnnn Reassembling Notes

• When reinstalling access plate F, fit the two tabs provided on the front end underneath the
center edge of the main chassis.

IV - 4

1.3 Paper Cassette

(1) Pull the pressure plate release lever to the front to release the pressure plate.

(2) Fully slide the side guide (R or L) inwards (in the direction of arrow Q) and remove the screw.

Then release the latches (arrow R) and pull up the side guide (arrow S).

(3) Release the pressure plate from the bosses (arrow T) and remove it (arrow U).

(4) Fully slide the paper rear guide to the front and lift it up (arrow V).

IV - 5

1.4 Document Tray ASSY

(1) Fully open the document tray ASSY.

(2) Lift up the document tray ASSY straight and pull the hinges up and out of the scanner unit.

(3) Remove the three screws from each of the hinges.

IV - 6

(4) Remove screw "a," then lightly tap the left end of the document chute to release the three

hooks from the document tray.

(5) Remove the sponge.

(6) Remove screw "b" to take off the support plate.

IV - 7

1.5 Upper Rear Cover

(1) Remove the two screws from the upper rear cover.

(2) Release section "a" from the latch provided on the scanner mount and pull the top of the upper

rear cover to the rear and upwards.

nnnn Reassembling Notes

• When installing the upper rear cover, first hook sections "b" onto the supports of the scanner
mount and push the upper rear cover into place.

IV - 8

1.6 ADF Unit and Document Tray Open Sensor

(1) Remove screw "a" from the harness support (which holds the document tray open sensor).
(2) Remove screw "b" to release the grounding wires.
(3) Disconnect the following from the relay PCB:

• CCD flat cable (P4)

• ADF motor harness (4-pin, P3)

• Document sensor harness (4-pin, P8)

• Document tray open sensor harness (2-pin)

Scanner top cover

CCD flat cable

Document sensor harness

ADF motor harness

(Rear)

"b"

"a"

Harness support

Document tray
open sensor harness

Relay PCB

Chassis grounding wire

ADF grounding wire

Scanner grounding wire

"a": Cup B tite M3x10
"b": Taptite, cup S M3x6

IV - 9

(4) Turn the ADF unit in the direction of arrow

arm (arrow

R) from the boss provided on the scanner top cover. Turn the ADF unit back into

place.

Q, remove the plastic retaining ring, and release the

(5) Open the ADF cover (arrow

S) and remove two screws "c."

(6) Lift up the ADF unit while pulling out the ADF motor harness, document sensor harness, and

grounding wire. The ADF supports also come off.

(7) Remove screw "d" and take off the harness support together with the document tray open

sensor.

Remove the screw from the document tray open sensor.

"c"

ADF supports

"c"

ADF unit

Front pin "y"

Rear pin "x"

ADF cover

ADF motor harness

Document sensor harness

ADF grounding wire

Harness support

"d"

Arm

Plastic retaining ring

Scanner top cover

ADF unit

ADF motor harness,
document sensor harness,
and grounding wire

Harness support

Boss

Harness support

"c" and "d": Taptite, cup B M3x8

Tapitite, pan P 1.6x8
(Tightening torque: 0.15 +0.03 N m)

Document tray open sensor

IV - 10

[ Disassembling the ADF Unit ]

1) Open the ADF cover. Pull the ADF side cover outwards and release the ADF cover from the

bosses provided on the ADF side covers.

2) At each of the ADF side covers F and R, remove the screw, pull the unscrewed corner

outwards to release it from the document ejection chute, and unhook the latch.

3) Remove the document ejection chute (which has been secured with the screws removed in

step 2) above).

IV - 11

4) At the front end of the document feed roller shaft, remove the pawled bushing by pulling its

pawls outwards. At the rear end, pull the bushing outwards and lift up the document feed roller
ASSY.

5) At the front end of the upper LF roller (gray) shaft, remove the pawled bushing by pulling its

pawls outwards. At the rear end, pull the bushing outwards and lift up the upper LF roller ASSY.

6) Remove the two screws and take off the ADF motor.

If you do not need to remove the ADF parts, skip to step 10).

7) Peel off the ADF film.

NOTE: Once removed, the ADF film will become unusable and a new part will have to be put
back in.

8) Remove the screw and take off the spring plate A, separation rubber, rubber holder, and

compression spring.

9) Push the hooks provided on the upper ADF chute and remove the pressure rollers and their

springs.

IV - 12

10) Remove the two screws and lift up the upper ADF chute.

11) Turn the document front sensor actuator as shown below and lift it up.

12) Turn the document rear sensor actuator as shown below and lift it up.

13) Disconnect the document sensor harness from the document sensor PCB and take out its

harness from the harness guides.

14) Unhook the two latches (large and small latches in this order) from the document sensor PCB

and lift it up.

IV - 13

15) At the front end of the document ejection roller shaft, remove the pawled bushing by pulling its

pawls outwards. At the rear end, pull the bushing outwards and lift up the document ejection
roller ASSY.

16) Remove the three screws and take off the motor bracket.

17) At the front end of the lower LF roller (black) shaft, remove the pawled bushing by pulling its

pawls outwards. At the rear end, pull the bushing outwards and remove the lower LF roller
ASSY.

18) Turn the lower ADF chute upside down.

19) Pull the arm outwards and take it off.

20) At the rear side of the lower ADF chute, remove the gear 19/36 by pulling its pawl outwards.

21) Remove the gear 64 by pulling its pawl outwards.

22) Unhook the two springs.

23) Pull out the white roller bushing F by pulling its pawls outwards.

24) Remove the white roller together with the white roller bushing R and gear 27.

IV - 14

nnnn Reassembling Notes

• Take care not to mistake the upper LF roller ASSY (gray) for the lower LF roller ASSY (black).

• When setting the document sensor PCB back into place, do not push it down straight, but first fit
the PCB in the large latch and then fit it in the small latch (see the illustration given on page IV-

13).

• Be sure to route the document sensor harness through the three harness guides so that it will
not interfere with the document rear sensor actuator. (See the illustration given on page IV-13.)

• Reinstall the ADF motor with its connector side facing up. (See the illustration given on page IV-

12.)

• Reinstall the ADF side covers so that the tabs of the ADF side plates become fitted inside the
ribs provided on the ADF side covers. (See the illustration given on page IV-11.)

• When reinstalling the ADF side cover R, be sure to route the document sensor harness, ADF
motor harness, and grounding wire between the boss and the ADF side cover R. (See the
illustration given on page IV-11.)

• When reinstalling the ADF unit, first set the ADF support onto rear pin "x" of the ADF unit, set
the ADF unit back into place, set the other ADF support onto front pin "y," then secure those
ADF supports with two screws "c." (See the illustration given on page IV-10.)

• When connecting the ADF motor harness, document sensor harness, and grounding wires to
the relay PCB, route them as shown below.

IV - 15

1.7 Scanner Unit and Control Panel ASSY

(1) Disconnect the following from the relay PCB:

- CCD motor harness

- Panel harness

- Scanner HP sensor harness

IV - 16

(2) Slide the scanner unit (with the control panel ASSY) to the rear by approx. 5 mm and then lift it

up. (For the disassembly procedure of the scanner unit, refer to page IV-19.)

IV - 17

(3) Remove the three screws from the underside of the scanner base.
(4) Insert the tip of a flat screwdriver into each of the four holes provided in the scanner base and

unhook the four latches while lifting up the control panel ASSY.

(5) Disconnect the panel harness from the control panel PCB. (For the disassembly procedure of

the control panel ASSY, refer to page IV-24.)

nnnn Reassembling Notes

• When reinstalling the scanner unit, fit the holes and cutouts provided in the scanner unit over
screws "A" and pawls of the scanner mount, respectively, and then slide the scanner unit to the
front. (Refer to page IV-17.)

• When connecting the CCD motor harness, panel harness, and scanner HP sensor harness to
the relay PCB, route them as shown below.

Scanner HP sensor harness

Document sensor harness

Panel harness

Speaker harness

Main-relay (panel) harness

Relay PCB

CCD flat cable

ADF motor harness

CCD motor harness

Document tray open
sensor harness

Main-relay (motors) harness

Main-relay (CCD) harness

IV - 18

• When connecting the CCD motor harness, panel harness, and scanner HP sensor harness to
the relay PCB, route them as shown below.

[ Disassembling the Scanner Unit ]

The disassembling job of the scanner unit should be done in a clean room to prevent dust or dirt
from getting into the scanner unit.

1) Remove the four screws from the scanner top cover.

2) Separate the scanner top cover from the scanner base.

IV - 19

3) Turn the gear 17/97 to move the CCD unit to the right to make the following job easier.

4) Remove screw "a" and take out the CCD rail clamp. (See the illustration given on the next

page.)

5) Remove two screws "b" from the CCD idle pulley holder, then remove the CCD drive belt from

the idle pulley.

6) Lift up the CCD rail together with the CCD unit and CCD drive belt, and then disconnect the

CCD flat cable.
NOTE: When handling the CCD unit, do not touch the CCD PCB or glasses but hold the

hatched sections as shown below.

7) Pull out the CCD rail from the CCD unit.

8) Remove the CCD lock.

IV - 20

"a": Taptite, cup B M3x8
"b": Taptite, pan B M3x10

9) Pull up the CCD motor harness and disconnect it from the CCD motor.

10) Remove three screws "c" from the motor bracket.

11) Lift up the motor bracket.

12) Remove two screws "d" from the CCD motor. The scanner grounding wire also comes off.

13) Disconnect the CCD HP sensor harness from the sensor.

14) Remove the CCD HP sensor.

IV - 21

15) Remove the four screws and take off the flat cable clamp. Remove sponge 3 attached with

adhesive tape.

16) Remove the CCD flat cable (which is attached with adhesive tape).

17) Remove the four screws and take off the guide plate.

18) Remove tape and sponges 1, then take out the panel harness and CCD HP sensor harness.

NOTE: Once removed, the sponges 1 will become unusable and new ones will have to be put
back in.

IV - 22

nnnn Reassembling Notes

• Route the panel harness and CCD HP sensor harness through the three notches, then tape
them as illustrated on the previous page.

• When replacing the CCD flat cable with a new one, be sure to arrange the new cable as
illustrated below, then route it along the positioning rib as shown on the previous page.

• Set the CCD motor back into place with its connector side facing up as shown on page IV-21.
When securing the motor with screws "d," be sure to secure the scanner grounding wire also as
shown on page IV-21.

• Route the CCD motor harness and scanner grounding wire as illustrated below.

• Set the CCD lock in the release (forward) position. If the CCD lock is placed in the lock position,
the CCD home positioning will fail in the next powering-up sequence. If this happens, turn the
CCD lock to the release position.

IV - 23

[ Disassembling the Control Panel ASSY ]

1) Turn the control panel ASSY upside down.

2) Remove two screws "a."

3) Slightly lift up the control panel PCB, then unlock the FPC key connector and disconnect the

FPC key. Next, unlock the LCD cable connector and disconnect the LCD flat cable.

4) Remove six screws "b."

5) Remove the key support plate and FPC key.

"a": Taptite, cup B M2.6x8
"b": Taptite, cup B M3x6

6) As shown below, slightly pull the clamp outwards 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.

nnnn 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.

IV - 24

1.8 Relay PCB

(1) Disconnect the following harnesses from the relay PCB:

- Speaker harness

- Main-relay (panel) harness

- Main-relay (CCD) harness

- Main-relay (motors) harness

(2) Remove the two screws.

(3) Take out the relay PCB.

 Reassembling Notes

• When setting the relay PCB back into place, be careful with the installation direction. The
printed letters should not be upside down.

IV - 25

1.9 Speaker

(1) Press the pawl in the direction of arrow

arrow ➁.

(2) Lift up the speaker.

➀ and slide the speaker spring in the direction of

IV - 26

1.10 Scanner Mount

(1) Remove two screws "a."

(2) Open the front cover and remove two screws "b."

(3) Pull the tabs of the scanner mount to the front and upwards (in the direction of arrows

release them from the bosses provided on the main cover.

(4) Lift up the scanner mount in the direction of arrow

"a": Stepped screw

(Tightening torque: 0.78 N•m)

"b": Taptite, cup S M3x10

(Tightening torque: 0.78 N•m)

➀) to

➁.

IV - 27

(5) Turn the scanner mount upside down.

(6) Peel off anti-static brushes.

NOTE: Once removed, they will become unusable and new parts will have to be put back in.

(7) As shown below, warp the gear-equipped end of the exit roller and remove it.

IV - 28

 Reassembling Notes

• When setting the scanner mount back into place:

- at the right-hand side, raise the main-relay (panel) harness coming through the main cover up

and through cutout "x" provided in the scanner mount.

- at the left-hand side, pull up the main-relay (motors) harness and chassis grounding wire and

raise them up and through square cutout "y" provided in the scanner mount. Also pull up the
main-relay (CCD) harness and raise it up and through round cutout "z."

IV - 29

1.11 Paper Sub Tray and Tray Holder

(1) Pull out the paper sub tray.

(2) While pushing down the center of the paper sub tray to warp it (in the direction of arrow

it out of the tray holder (arrow

(3) Insert the tip of a small flat screwdriver into the tray holder (in the direction of arrow ➀) and pull

up the tray holder (arrow

➁).

➁).

➀), pull

IV - 30

1.12 VC Cover, VC Bracket, and VC Connector PCB (for models supporting video capture)

(1) Remove two screws ("a" and "b"), then take off the VC cover.

(2) Remove screw "c," take out the VC bracket together with the VC connector PCB, and

disconnect the VC harness.

(3) Remove two screws "d," then take off the VC connector PCB.

 Reassembling Notes

• The routing of the VC harness is shown on page IV-34.

"a": Taptite, cup S M3x10
"b": Taptite, bind S M3x8
"c" and "d": Taptite, cup S M3x6

IV - 31

1.13 Front Cover Front Sub Cover (for models not supporting video capture)

(1) For models not supporting video capture:

Remove the screw and take off the front sub cover from the front cover.

(2) Remove the screw from the left bottom of the front side of the main cover.

(3) Hold the front cover at an angle of 45° and pull the front cover link to the left to release it from

the front cover.

(4) Pull the bottom left front corner of the main cover to the left (in the direction of arrow ) and

release the front cover from the boss provided on the main cover (arrow ).

IV - 32

1.14 Outer Chute and Paper Pinch Rollers

(1) Pull up the outer chute and open it (in the direction of arrow ).

(2) Remove the chute springs from the hooks provided on the main cover (arrow ), then lift up

the outer chute (arrow ).

(3) Remove the paper pinch rollers, their supports, and their springs.

IV - 33

1.15 Main Cover

(1) Remove two screws "a" from the front side of the main cover.

(2) Remove two screws "b" from the rear side of the main cover, and then pull corner edges "X"

outwards to dislocate the main cover from the main chassis. Make sure that the cutout
provided in the main cover is dislocated from the power inlet.

(3) Unhook the two latches with the tip of a flat screwdriver, then lift up the main cover.

nnnn Reassembling Notes

• When reinstalling the main cover, route the main-relay (panel) harness, main-relay (CCD)
harness, and main-relay (motors) harness through the respective cutouts provided in the main
cover, as illustrated above.

"a" and "b": Taptite, bind S M3x8

IV - 34

1.16 Switch Cover (for models not equipped with a power switch)

(1) Push the locks of the switch cover as shown below and remove it.

IV - 35

1.17 Laser Unit

(1) Remove screw "a" and take off the harness cover.

(2) Remove two screws "b."

(3) Disconnect the polygon motor harness and laser flat cable from the laser unit.

(4) 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 in the laser unit is a 2-pin connector which is for the adjustment in
the factory. Do not disturb it.

nnnn Reassembling Notes

• Before putting the laser unit back into place, check for any toner particles, paper dust or dirt, and
clean them out.

• After routing the polygon motor harness and laser flat cable, tape them onto the laser unit as
shown above.

"a" and "b": Taptite, cup S M3x16

IV - 36

1.18 Heat-fixing Unit and FU Lamp

(1) Remove the screw from the harness duct.

(2) Peel off tape and take off the scanner motor harness, CIS harness, and VC harness* from the

harness duct.

(3) Unhook the harness duct from the main chassis in the directions of arrows Q and R.

*Provided on models supporting video capture

IV - 37

(4) Remove three screws (two "a" and one "b").

(5) Disconnect the long heater wire (of the heater harness) from the upper center of the heat-fixing

unit.

(6) Disconnect the short heater wire (of the heater harness) from the left end of the heat-fixing unit.

(7) Lift up the heat-fixing unit and disconnect the heater thermistor harness from the engine PCB.

IV - 38

"a": Stepped screw
"b": Taptite, cup S M3x8

[Disassembling the heat-fixing unit]

(1) Remove the three screws and take off the FU front paper guide.

(2) Remove the three screws and take off the star wheel holder ASSY.

Heat-fixing unit

Star wheel holder ASSY

FU front paper guide

Screw, bind M3x10

Screw, bind M3x10

(3) Release the heater thermistor harness from the three harness guides provided on the

underside of the heat-fixing unit.

(4) Remove the two screws from the top of the heat-fixing unit.

(5) Unlatch the upper FU frame from the lower one at each of the right and left ends.

Taptite, cup B M3x20

Latch

Harness guide Latch

Upper side

Lower side

Heat-fixing unit

Heater thermistor harness

Taptite, cup B M3x20

Harness
guides

Heater thermistor harness

Heat-fixing unit

IV - 39

(6) Separate the lower FU frame from the upper one.

Boss

Upper FU frame

Hook

Boss

Lower FU frame

Hook

(7) Remove the screw securing the lamp lock plate at the gear side of the upper FU frame. At the

other side, loosen the screw.

(8) Slightly lift up the right-hand end of the heater roller and pull out the halogen lamp from the

heater roller.

CAUTION: Do not touch the surface of the halogen lamp. If you have touched it, clean it
thoroughly with alcohol.

Screw, cup M3x6
(Loosen this.)

Heater roller

Halogen lamp

Heater roller

Halogen lamp

Colored end
115V: Yellow
230V: Purple

Screw

Lamp lock plate

Upper FU frame

NOTE: When setting the halogen lamp into the heat-fixing unit, be careful with the insertion
direction as shown above.

IV - 40

CAUTION: When securing the halogen lamp to the lamp lock plate with the screw, be sure to
use the plastic jig as shown below to avoid damaging the edge of the halogen lamp with a
screwdriver.

Lamp lock plate

Halogen lamp

(9) Take the heater roller out of the upper FU frame.

Screw

Plastic jig

(10) At the gear side of the heater roller, remove the HR gear 34, retaining ring 25, washer 25, and

bushing 25 in this order.

At the other end of the heater roller, remove the bushing 25.

CAUTION: Do not touch the surface of the heater roller. If you have touched it, clean it
thoroughly with dry, lint-free cloth.

Bushing 25

Heater roller

Gear side

Bushing 25

Washer 25

HR gear 34

Retaining ring 25

IV - 41

NOTE: When setting the heater roller to the upper FU frame, fit the two ribs of the bushing 25
onto the bosses provided on the FU frame as shown below.

HR gear 34

Rib

Bushing 25

Heater roller

Boss

NOTE: At the gear side of the heater roller, fit the bushing 25 onto the heater roller with the 0.5
mm thick boss facing up.

HR gear 25

Boss (0.5 mm thick)

Bushing 25

Heater roller

IV - 42

NOTE: When setting the heater roller into the upper FU frame, take care not to damage the
heater roller with the four hooks.

Hooks

Heater roller

Hooks

Upper FU frame

(11) Remove the cleaner ASSY and cleaner spring from the upper FU frame.

Cleaner ASSY

Cleaner spring

Upper FU frame

IV - 43

(12) From the lower FU frame, gently lift up the right end of the pressure roller 25 and remove it.

Pressure roller 25

Lower FU frame

(13) At each of the right and left ends of the lower FU frame, push down the PR bushing to incline it

inwards and take it out. Remove the PR springs also.

(14) At each of the four aligned cleaner pinch rollers, pinch section "A" of the claw cleaner spring

and pull it up and out of the lower FU frame. Then remove those four cleaner pinch rollers.

(15) At the cleaner pinch roller placed inwards, pinch section "B" of the thermistor cleaner spring

and pull it up and out of the lower FU frame.

Cleaner pinch roller
(placed inwards)

Cleaner pinch
rollers (aligned)

Claw cleaner

"A"

spring

Thermistor
cleaner spring

PR bushing

Lower FU frame

PR spring

PR bushing

PR spring

"B"

NOTE: When setting claw cleaner springs and thermistor cleaner spring into the lower FU
frame, fully push them in so that sections A and B will not protrude from the frame.

IV - 44

(16) Release the heater thermistor harness from the harness guides provided on the upper FU

frame. Then remove the screw and take off the thermistor.

Harness guides

Thermistor

Upper FU frame

Taptite, bind B M3x12

NOTE: When setting the thermistor into the upper FU frame, insert it in the direction shown
below.

Upper FU frame

Thermistor

Taptite, bind B
M3x12

Thermistor

IV - 45

(17) From the upper FU frame, remove the screw and take off the idle gear 13. Then slide the

ejection roller to the left and take it out to the front.

Upper FU frame

Ejection roller

Taptite, B M2.3x10

Idle gear 13

(18) Unlatch each of the four ejection pinch roller holders R and L from the upper FU frame and

take it out. Remove the ejection pinch spring from each of those holders.

Ejection pinch rollers

Ejection pinch rollers

Ejection pinch roller holder (R, L)

Upper FU frame

Ejection pinch spring

IV - 46

Latch

(19) Remove a pair of ejection pinch rollers from each of the ejection pinch roller holders R and L.

Ejection pinch rollers

Ejection pinch rollers

Ejection pinch roller holder R

Ejection pinch roller holder L

(20) Remove the screw from each of the four claw holder plates and take them off.

Next turn each of the separate claw ASSYes from the bottom to align its cutout with the
opening provided in the upper FU frame. Pinch the boss of the separate claw ASSY with
tweezers and take it up.

Boss

Tweezers

Separate claw ASSY

Taptite, cup B M3x6

Claw holder plate

Separate claw ASSY

Upper FU frame

IV - 47

(21) Release the paper ejection sensor actuator from the hook on the lower FU frame and then

remove it in the direction of the arrow shown below together with the ejection actuator spring.

Paper ejection sensor actuator

Ejection actuator spring

Lower FU frame

NOTE: When setting the paper ejection sensor actuator and its spring, make sure that they are
fitted into place as illustrated below.

Paper ejection sensor
actuator

Lower FU frame

Ejection actuator spring

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(22) From the upper FU frame, remove the screw, slightly lift up the shutter of the ejection actuator

3, and remove the jam sensor PCB.

Screw, bind B tite 3x10

Ejection actuator 3

Jam sensor PCB

Upper FU frame

(23) Turn the ejection actuator 3, move it to the right, and lift it up and out of the support.

Ejection actuator 3

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Support

Upper FU frame

(24) Remove the screw and take off the actuator holder. Then unhook end "A" of the ejection

A

r

actuator spring 2 from the upper FU frame and pull up the ejection actuator 2 together with the
spring.

Taptite, cup M3x8

Hook

“A”

Ejection actuator spring 2

Ejection
actuator
spring 2

ctuator holde

Ejection actuator 2

Upper FU frame

nnnn Reassembling Notes

• A new heat-fixing unit will be provided with the heater thermistor harness being taped to the unit.
Before installing the unit, remove the tape.

• If you remove and reinstall the heat-fixing unit because of any failure, make the equipment enter
the maintenance mode (by pressing the Menu, * 2, 8, 6, and 4 keys) after completion of
reassembly and then make it exit from the mode (by pressing the 9 key twice). Otherwise, the
heat-fixing unit may not become energized because of the following reason:

If the failure of the heat-fixing unit is caused by an opening of the thermistor circuit (that senses
the temperature of the heat-fixing unit), the system misinterprets the hot heater as being cold.
As a result, the temperature of the heat-fixing unit may become excessively high. To prevent
the system from heating the hot heater further at the next powering-on, it is designed so that the
heater will not be energized. To cancel this setting, you need to carry out the above
maintenance-mode procedure.

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1.19 Fan

(1) Disconnect the fan harness from the engine PCB.

(2) Remove two screws, take out the heater wires from the latch of the fan duct, and take off the

fan duct together with the fan.

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(3) As shown below, pull the fan duct outwards and take out the fan.

 Reassembling Notes

• Put the fan back into place so that the rating label faces outwards and upside down.

• Route the heater wires through the latch of the fan duct as shown on the previous page.

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1.20 Drive Gear ASSY and Main Motor ASSY

(1) Remove five screws from the drive gear ASSY.

(2) Tilt the drive gear ASSY towards you while taking care not to drop the develop joint and spring,

and then disconnect the main motor harness.

(3) Remove the front cover link and idle gear 56 from the main chassis.

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*Provided on models supporting video capture

(4) Remove four screws and take off the main motor ASSY from the drive gear ASSY.

 Reassembling Notes

• If you have removed the gear 39/98 from the drive gear ASSY, hook the spring and tape it as
shown below.

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