Brother MFC7420, MFC7820N, DCP 7010, DCP 7025, DCP-7020 User Manual

FACSIMILE EQUIPMENT

SERVICE MANUAL

MODELS: MFC7420/7820N

DCP7010/7020/7025

Confidential

© Copyright Brother 2004
All rights reserved.
No part of this publication may be reproduc ed in any

form or by any means without perm ission in writing
from the publisher.

Specifications are subject to change without notice.

Confidential

PREFACE

This Service Manual is intended for use by service personnel and details the specifications,
construction, theory of operation, and maintenance for the Brother machines noted on the front
cover. It includes information required for troubleshooting and service--disassembly, reassembly,
and lubrication--so that service personnel will be able to understand equipment function, repair the
equipment in a timely manner and order spare parts as necessary.

To perform appropriate maintenance so that the machine is always in the best possible condition
for the customer, service personnel must adequately understand and apply this manual.

HOW THIS MANUAL IS ORGANIZED

This manual is made up of nine chapters and appendices.

CHAPTER 1 PARTS NAMES AND FUNCTIONS

Contains external views and names of components and describes their functions. Information
about the keys on the control panel is included to help you check operation or make adjustments.

CHAPTER 2 SPECIFICATIONS

Lists the specifications of each model, which enables you to make a comparison of different
models.

CHAPTER 3 THEORY OF OPERATION

Gives an overview of the scanning and printing mechanisms as well as the sensors, actuators, and
control electronics. It aids in understanding the basic principles of operation as well as locating
defects for troubleshooting.

CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR

Describes how to transfer data left in the machine to be sent for repair. The service personnel
should instruct end users to follow the transfer procedure given in this chapter if the machine at the
user site cannot print received data due to the printing mechanism defective. End users can
transfer received data to another machine to prevent data loss.

CHAPTER 5 DISASSEMBLY/REASSEMBLY AND LUBRICATION

Details procedures for disassembling and reassembling the machine together with related notes.
The disassembly order flow provided enables you to see at a glance the quickest way to get to
component(s) involved.
At the start of a disassembly job, you check a disassembly order flow that guides you through a
shortcut to the object components.
This chapter also covers screw tightening torques and lubrication points to which the specified
lubricants should be applied during reassembly jobs.

CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS

REPLACEMENT

Details adjustments and updating of settings, which are required if the head/carriage unit, main
PCB and some other parts have been replaced.

CHAPTER 7 CLEANING

Provides cleaning procedures not covered by the User's Manual. Before starting any repair work,
clean the machine as it may solve the problem concerned.

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CHAPTER 8 MAINTENANCE MODE

Describes the maintenance mode which is exclusively designed for the purpose of checks, settings
and adjustments using the keys on the control panel.
In the maintenance mode, you can update memory (EEPROM: electrically erasable programmable
read-only memory) contents for optimizing the drive conditions of the head/carriage unit, paper
feed roller or paper ejection roller (if they have been replaced) or for setting the CIS scanner area,
for example. You can also customize the EEPROM according to the shipment destination of the
machine concerned. In addition, you can perform operational checks of the LCD, control panel
PCB or sensors, perform a print test, display the log information or error codes, and modify
firmware switches (WSW).

CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING

Details error messages and codes that the incorporated self-diagnostic functions display if any
error or malfunction occurs. If any error message appears, refer to this chapter to find which
components should be checked or replaced.
The latter half of this chapter provides sample problems that could occur in the main sections of
the machine and related troubleshooting procedures. This will help service personnel pinpoint and
repair defective components.

APPENDIX 1 SERIAL NUMBERING SYSTEM

Shows the location of serial number labels put on some parts and lists the coding information
pertaining to the serial numbers.

APPENDIX 2 FIRMWARE INSTALLATION

Provides instructions on how to update firmware stored in the flash ROM on the main PCB or load
firmware to a new main PCB from the host PC.
No hardware replacement is required for updating.

APPENDIX 3 CUSTOMIZING CODES ACCORDING TO SHIPPING DESTINATION

Lists the customizing codes for the various preferences exclusively designed for each destination
(e.g. language). Those codes are stored in the memory (EEPROM) mounted on the main PCB. If
the main PCB is replaced with a new one, therefore, you will need to set the proper customizing
codes with the machine in the maintenance mode.

APPENDIX 4 FIRMWARE SWITCHES (WSW)

Describes the functions of the firmware switches, which can be divided into two groups: one is for
customizing preferences designed for the shipping destination (as described in Appendix 3) and
the other is for modifying preferences that match the machine to the environmental conditions.
Use the latter group if the machine malfunctions due to mismatching.

APPENDIX 5 WIRING DIAGRAM

Provides the wiring diagram that helps you understand the connections between PCBs.

APPENDIX 6 CIRCUIT DIAGRAMS

Provides the circuit diagrams of the NCU PCB and power supply PCB.
This manual describes the models and their versions destined for major countries.

The specifications and functions are subject to change depending upon each destination.

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TABLE OF CONTENTS

CHAPTER 1 PARTS NAMES & FUNCTIONS

1.1 EQUIPMENT OUTLINE.............................................................................................1-1

1.2 CONTROL PANEL....................................................................................................1-2

1.3 COMPONENTS .........................................................................................................1-4

CHAPTER 2 SPECIFICATIONS

2.1 GENGERAL...............................................................................................................2-1

2.1.1 General Specifications .........................................................................................2-1

2.1.2 Paper Specifications.............................................................................................2-2

2.1.3 Printable Area ................................................................................................................2-4

2.2 SPECIFICATIONS LIST............................................................................................2-8

CHAPTER 3 THEORY OF OPERATION

3.1 OVERVIEW................................................................................................................3-1

3.2 MECHANICAL COMPONENTS ................................................................................3-2

3.2.1 Scanner Mechanism ............................................................................................3-3

3.2.2 Printing Mechanism..............................................................................................3-6

3.2.2.1 Paper supply................................................................................................3-6

3.2.2.2 Push-up function of paper tray.....................................................................3-8

3.2.2.3 Paper registration.......................................................................................3-10

3.2.2.4 Paper eject.................................................................................................3-11

3.2.2.5 Drum unit....................................................................................................3-11

3.2.2.6 Toner cartridge...........................................................................................3-12

3.2.2.7 Print process..............................................................................................3-15

3.2.3 Sensors and Actuators.......................................................................................3-18

3.3 CONTROL ELECTRONICS ....................................................................................3-19

3.3.1 Components.......................................................................................................3-19

CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR

4.1 TRANSFERRING RECEIVED FAX DATA................................................................4-1

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CHAPTER 5 DISASSEMBLY/REASSEMBLY AND LUBRICATION

5.1 DISASSEMBLY/REASSEMBLY...............................................................................5-1

 Safety Precautions........................................................................................................5-1

 Tightening Torque.........................................................................................................5-2

 Preparation ...................................................................................................................5-3

 How to Access the Object Component.........................................................................5-3

 Disassembly Flowchart.................................................................................................5-4

5.1.1 AC Cord................................................................................................................5-5

5.1.2 Drum/Toner ASSY................................................................................................5-5

5.1.3 Paper Tray............................................................................................................5-6

5.1.4 Rear Cover...........................................................................................................5-7

5.1.5 Rear Chute Cover ................................................................................................5-8

5.1.6 Side Cover L.........................................................................................................5-9

5.1.7 Side Cover R......................................................................................................5-10

5.1.8 ADF Unit.............................................................................................................5-11

5.1.9 Pull Arm/Pull Arm Guide/Lock Claw Pull Arm Spring.........................................5-25

5.1.10 Scanner Unit.......................................................................................................5-26

5.1.11 Panel Unit...........................................................................................................5-26

5.1.12 NCU PCB...........................................................................................................5-30

5.1.13 Speaker..............................................................................................................5-31

5.1.14 Joint Cover ASSY/Paper Stopper/Battery ASSY................................................5-33

5.1.15 Front Cover ........................................................................................................5-36

5.1.16 Pickup Roller Holder ASSY................................................................................5-38

5.1.17 Fixing Unit ..........................................................................................................5-42

5.1.18 High-Voltage PS PCB ASSY..............................................................................5-48

5.1.19 Main PCB...........................................................................................................5-49

5.1.20 PS PCB Unit.......................................................................................................5-51

5.1.21 Laser Unit...........................................................................................................5-54

5.1.22 Sub Chute ASSY................................................................................................5-56

5.1.23 Link Lever...........................................................................................................5-57

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5.1.24 Tail Edge Actuator..............................................................................................5-58

5.1.25 Regist Front Actuator/Regist Front Spring .........................................................5-58

5.1.26 Regist Sensor PCB ASSY..................................................................................5-59

5.1.27 Regist Rear Actuator/Regist Rear Spring...........................................................5-59

5.1.28 Fan Motor 60 Unit...............................................................................................5-60

5.1.29 Toner LED PCB ASSY/LED Holder ...................................................................5-61

5.1.30 New Toner Actuator/New Toner Actuator Spring...............................................5-62

5.1.31 New Toner Sensor .............................................................................................5-62

5.1.32 Cover Sensor .....................................................................................................5-63

5.1.33 Toner Sensor PCB ASSY...................................................................................5-63

5.1.34 Main Motor ASSY...............................................................................................5-64

5.1.35 Develop Joint......................................................................................................5-65

5.1.36 P/R Solenoid ASSY............................................................................................5-65

5.1.37 F/R Solenoid ASSY ............................................................................................5-66

5.1.38 Main Frame L.....................................................................................................5-68

5.1.39 Main Frame R.....................................................................................................5-69

5.1.40 Harness Routing.................................................................................................5-70

5.2 LUBRICATION ........................................................................................................5-78

CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS

REPLACEMENT

6.1 IF YOU REPLACE THE MAIN PCB..........................................................................6-1

[ 1 ] Load update programs/data.........................................................................6-1

[ 2 ] Initialize the EEPROM on the main PCB (Function code 01) ......................6-1

[ 3 ] Customize the EEPROM on the main PCB (Function code 74) ..................6-1

[ 4 ] Check the control panel PCB for normal operation (Function code 13) ......6-1

[ 5 ] Make a sensor operation check (Function code 32)....................................6-1

[ 6 ] Acquire of white level data and set the CIS scanner area

(Function code 55).......................................................................................6-1

[ 7 ] Setting the serial number.............................................................................6-1

[ 8 ] Inputting the adjusted value of the laser scanner ........................................6-1

[ 9 ] Switch back to standby ................................................................................6-1

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CHAPTER 7 CLEANING

CHAPTER 8 MAINTENANCE MODE

8.1 ENTRY INTO THE MAINTENANCE MODE .............................................................8-1

8.2 LIST OF MAINTENANCE MODE FUNCTIONS........................................................8-2

8.3 USER-ACCESS TO THE MAINTENANCE MODE ...................................................8-3

8.4 DETAILED DESCRIPTION OF MAINTENANCE MODE FUNCTIONS....................8-4

8.4.1 EEPROM Parameter Initialization (Function code 01/91)....................................8-4

8.4.2 Printout of Scanning Compensation Data (Function code 05).............................8-5

8.4.3 Placement of CIS Unit in Position for Transportation (Function mode 06) ..........8-7

8.4.4 ADF Performance Test (Function mode 08)........................................................8-7

8.4.5 Test Pattern 1 (Function mode 09) ......................................................................8-8

8.4.6 Firmware Switch Setting and Printout ..................................................................8-9

8.4.6.1 Firmware switch setting (Function mode 10) ...............................................8-9

8.4.6.2 Printout of firmware switch data (Function mode 11).................................8-11

8.4.7 Operation Check of LCD (Function mode 12)....................................................8-12

8.4.8 Operational Check of Control Panel PCB (Function mode 13)..........................8-13

8.4.9 Sensor Operational Check (Function mode 32).................................................8-14

8.4.10 Received Data Transfer Function (Function mode 53)......................................8-15

8.4.11 Fine Adjustment of Scan Start/End Positions (Function mode 54)....................8-17

8.4.12 Acquisition of White Level Data and CIS Scanner Area Setting

(Function mode 55)............................................................................................8-19

8.4.13 Paper Feeding and Ejecting Test (Function mode 67).......................................8-19

8.4.14 EEPROM Customizing (Function mode 74).......................................................8-20

8.4.15 Display of the Equipment’s Log Information (Function mode 80) ......................8-21

8.4.16 Machine Error Code Indication (Function mode 82) ..........................................8-23

8.4.17 Output of Transmission Log to the Telephone Line (Function mode 87)...........8-23

8.4.18 Cancellation of the Memory Security Mode

(Not applicable to the Japanese model) ............................................................8-23

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CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING

9.1 ERROR INDICATION ................................................................................................9-1

9.1.1 Equipment Errors .................................................................................................9-1

[ 1 ] Error messages appearing on the LCD .......................................................9-1

[ 2 ] Error codes shown in the "MACHINE ERROR X

9.1.2 Communications Errors......................................................................................9-11

9.2 TROUBLESHOOTING ............................................................................................9-15

9.2.1 Introduction.........................................................................................................9-15

9.2.2 Precautions ........................................................................................................9-15

9.2.3 Checking Prior to Troubleshooting.....................................................................9-15

9.2.4 Troubleshooting Based on Problem Type..........................................................9-16

[ 1 ] Paper feeding problems.............................................................................9-16

[ 2 ] Software setting problems .........................................................................9-18

[ 3 ] Malfunction.................................................................................................9-21

[ 4 ] Image defects ............................................................................................9-27

[ 5 ] Incorrect printout........................................................................................9-48

[ 6 ] Network problem........................................................................................9-50

[ 7 ] Troubleshooting of the control panel..........................................................9-54

[ 8 ] Troubleshooting of fax functions................................................................9-56

X" messages...................9-5

APPENDIX 1 SERIAL NUMBERING SYSTEM

APPENDIX 2 FIRMWARE INSTALLATION

A2.1 INSTALLING THE UPDATE DATA TO THE MACHINE..................................App. 2-1

A2.2 SETTING ID CODES TO MACHINES..............................................................App. 2-9

APPENDIX 3 CUSTOMIZING CODES ACCORDING TO SHIPPING DESTINATION

APPENDIX 4 FIRMWARE SWITCHES (WSW)

APPENDIX 5 WIRING DIAGRAM

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APPENDIX 6 CIRCUIT DIAGRAMS

NCU PCB: MFC7420 (U.S.A. and CANADA models)
NCU PCB: MFC7820N (U.S.A. and CANADA models)
NCU PCB: MFC7420 (EUROPE models)
NCU PCB: MFC7820N (EUROPE models)
Power Supply PCB 100V (U.S.A. and CANADA models)
Power Supply PCB 200V (EUROPE models)

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SAFETY PRECAUTIONS

To use the MFC safely

Please keep these instructions for later reference and read them before attempting any maintenance.

NOTE: If there are faxes in the MFC's memory, you need to print them or save them before you turn

off the power and unplug the MFC. (For MFC-7420)

WARNING

There are high voltage electrodes
inside the MFC. Before you clean
the inside of the MFC, make sure
you have unplugged the telephone
line cord first and then the power
cord from the AC power outlet.

Do not handle the plug with wet
hands.
Doing this might cause an electrical
shock.

After you use the MFC, some
internal parts are extremely HOT!
To prevent injuries, be careful not to
put your fingers in the areas shown
in the illustration.

The fuser unit is marked with a
caution label.
Please do not remove or damage the
label.

To prevent injuries, be careful not to
put your hands on the edge of the
MFC under the scanner cover.

To prevent injuries, be careful not to
put your fingers in the area shown in
the illustrations.

Do not use a vacuum cleaner to clean up scattered toner. Doing this might cause the toner dust to
ignite inside the vacuum cleaner, potentially starting a fire. Please carefully clean the toner dust with
a dry, lint-free cloth and dispose of it according to local regulations.

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WARNING

• When you move the MFC, grasp the side hand holds that are under the scanner. DO NOT

carry the MFC by holding it at the bottom.

• Use caution when installing or modifying telephone lines. Never touch telephone wires or

terminals that are not insulated unless the telephone line has been disconnected at the wall
jack. Never install telephone wiring during a lightning storm. Never install a telephone wall
jack in a wet location.

• This product must be installed near an AC power outlet that is easily accessible. In case of

an emergency, you must disconnect the power cord from the AC power outlet to shut off the
power completely.

• To reduce the risk of shock or fire, use only a No. 26 AWG or larger telecommunication line

cord.

CAUTION

Lightning and power surges can damage this product! We recommend that you use a quality
surge protection device on the AC power line and on the telephone line, or unplug the cords
during a lightning storm.

WARNING

IMPORTANT SAFETY INSTRUCTIONS

When using your telephone equipment, basic safety precautions should always be followed to
reduce the risk of fire, electric shock and injury to people, including the following:

1. Do not use this product near water, for example, near a bath tub, wash bowl, kitchen sink or
washing machine, in a wet basement or near a swimming pool.

2. Avoid using this product during an electrical storm. There may be a remote risk of electric
shock from lightning.

3. Do not use this product to report a gas leak in the vicinity of the leak.

4. Use only the power cord provided with the MFC.

SAVE THESE INSTRUCTIONS

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CHOOSING A LOCATION

Place your MFC on a flat, stable surface that is free of vibration and shocks, such as a desk. Put the
MFC near a telephone wall jack and a standard, grounded AC power outlet. Choose a location where
the temperature remains between 50°F and 90.5°F (10°C and 32.5°C).

CAUTION

• Avoid placing your MFC in a high-traffic area.

•

Do not place the MFC near heaters, air conditioners, water, chemicals, or refrigerators.

• Do not expose the MFC to direct sunlight, excessive heat, moisture, or dust.

• Do not connect your MFC to an AC power outlet controlled by wall switches or automatic

timers.

• Disruption of power can wipe out information in the MFC’s memory.

•

Do not connect your MFC to an AC power outlet on the same circuit as large appliances or
other equipment that might disrupt the power supply.

•

Avoid interference sources, such as speakers or the base units of cordless phones.

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CHAPTER

PARTS NAMES & FUNCTIONS

1

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CHAPTER 1 PARTS NAMES & FUNCTIONS

This chapter contains external views and names of components and describes their functions.
Information about the keys on the control panel is included to help you check operation or make
adjustments.

CONTENTS

1.1 EQUIPMENT OUTLINE ...................................................................................................1-1

1.2 CONTROL PANEL...........................................................................................................1-2

1.3 COMPONENTS................................................................................................................1-4

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1.1 EQUIPMENT OUTLINE

Front view

Automatic Document Feeder (ADF)

Control Panel

Face-down Output Tray
Support Flap with Extension
(Support Flap)

Manual Feed Slot

Rear view

Paper Tray

ADF Document Output Support Flap

Document Cover

Power Switch

Front Cover

AC Power Connector

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Back Cover

10/100 Baser TX Port
(MFC7820N only)

USB Interface Connector

Parallel Interface Connector

1.2 CONTROL PANEL

MFC-7420 and MFC-7820N have similar control keys.

12 11 10

9 8

1. One-Touch Keys

These 4 keys give you instant access to 8 previously
stored numbers.

To access One-Touch numbers 5 to 8, hold down Shift
as you press the One-Touch key.

Redial/Pause

Redials the last number you called. It also inserts a
pause in quick dial numbers.

Hook

Press before dialing if you want to make sure a fax
machine will answer, and then press Start. Also, press
this key after picking up the handset of an external
telephone during the F/T double/pseudo-ring.

Resolution

Sets the resolution when you send a fax.

2. Shift Key

3. Fax and Telephone Keys

6 5 4 3 2 1

Use these keys to dial telephone or fax numbers and as a
keyboard for entering information into the MFC.

The # key lets you temporarily switch the dialing mode
during a telephone call from Pulse to Tone.

6. Dial Pad Keys

7

7. Start Key

Lets you start sendi ng faxes or making cop i es.

8. Stop/Exit Key

Stops an operation or exits from the menu.

4. Mode Keys

Fax

Lets you access Fax mode.

Scan

Lets you access Scan mode.

Copy

Lets you access Copy mode.

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Print the Transmission Verification Report, Help List,
Quick-Dial List, Fax Journal, User Settings and Network
Configuration*. (*MFC-7820N only).

10. Liquid Crystal Display (LCD)

Displays messages on the screen to help you set up and
use your MFC.

9. Reports Key

5. Navigation Keys

Menu/Set

The same key is used for Menu and Set operations. Lets
you access the Menu to program and store your settings
in the MFC.

When listening to the speaker in Fax mode or on
standby, you can press these keys to adjust the volume.

Search/Speed Dial

Lets you look up numbers that are stored in the dialing
memory. It also lets you dial stored numbers by
pressing # and a three-digit number.

Press to scroll forward or backward to a menu selection.

or

Press to scroll through the menus and o ptions.

Enlarge/Reduce

11. Copy Keys (Temporary settings)

Lets you reduce or enlarge copies depending upon the
ratio you select.

Options

You can quickly and easily select temporary settings for
copying.

12. Printer Key

Job Cancel

You can cancel a print job and clear the printer memory.

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1.3 COMPONENTS

N

The equipment consists of the following major components:

ADF Unit

CU PCB

Inner Chute

Panel Unit

Scanner Unit

Speaker ASSY

Joint Cover ASSY

Rear Chute Cover

Rear Cover

Fixing Unit

Battery ASSY

Main PCB

Side Cover L

Laser Unit

Side Cover R

PS PCB Unit

Frame Unit

Front Cover

Paper Tray

High-voltage PS PCB

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CHAPTER

SPECIFICATIONS

2

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CHAPTER 2 SPECIFICATIONS

This chapter lists the specifications of each model, which enables you to make a comparison of
different models.

CONTENTS

2.1 GENERAL........................................................................................................................2-1

2.1.1 General Specifications .........................................................................................2-1

2.1.2 Paper Specifications.............................................................................................2-2

2.1.3 Printable Area ................................................................................................................2-4

2.2 SPECIFICATIONS LIST...................................................................................................2-8

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2.1 GENERAL

2.1.1 General Specifications

Memory Capacity 16 MB (MFC-7420), 32 MB (MFC-7820N)
Automatic Document Feeder (ADF) Up to 35 sheets
Paper Tray 250 Sheets (20 lb (75 g/m 2 ))
Printer Type Laser
Print Method Electrophotography by semiconductor laser beam

Liquid Crystal Display (LCD) 16 characters x 2 lines
Power Source 100 to 120V AC 50/60Hz
Power Consumption (MFC-7420)

Dimensions (W x D x H) 432mm x 395mm x 294mm (with out carton)

scanning

Minimum: Under 10 watts
Standby: 75 Wh or less (25°C)
Peak: 1032 Wh or less

(MFC-7820N)

Minimum: Under 10 watts
Standby: 75 Wh or less (25°C)
Peak: 1032 Wh or less

Weight Without Drum/Toner Unit: 20.7 lb (9.4 kg)
Noise Operating: 53 dB A or less

Standby: 30 dB A or less

Temperature Operating: 50°F to 90.5°F (10 to 32.5°C)

Storage: 32°F to 104°F (0 to 40°C)

Humidity Operating: 20 to 80% (without condensation)

Storage: 10 to 90% (without condensation)

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2.1.2 Paper Specifications

(1) Paper type

Paper type Tray1

Manual feed
slot

Select the paper type from the
printer driver

Plain paper

60 g/m2 to 105 g/m
(16 to 28 lbs.)

2

O O Plain paper

Recycled paper O O Recycled paper
Bond paper O O Bond paper
Thick paper

105 g/m2 to 161 g/m
(28 to 43 lbs.)

2

X O Thick paper or Thicker paper

O

Transparency

Up to 10 sheets

O

Transparency

A4 or Letter

Label X
Envelop X O

O

Thicker paper
Envelope or Env.Thick

or Env.Thin

Card Stock X O Thick paper or Thicker paper

(2) Paper size

Paper size

Paper Tray

A4, Letter, Legal*, , B5 (ISO),
Executive, A5, A6, B6 (ISO),
B5 (JIS), Folio*

Width:

69.9 to 215.9 mm (2.75 to 8.5 in.)
Length:

Manual feed slot

116 to 406.4 mm (4.57 to 16.0 in.)

* Legal and Folio are not available in some regions.

(3) Other paper specifications

<Paper tray>

Cut sheet

Basis weight 60 to 105 g/m2 (16 to 28 lb.)
Caliper 0.08 to 0.12 mm (0.003 to 0.005 in.)
Moisture content 4% to 6% by weight

<Manual feed slot>

Cut sheet

Basis weight 60 to 161 g/m2 (16 to 43 lb.)
Caliper 0.08 to 0.19 mm (0.003 to 0.007 in.)
Moisture content 4% to 6% by weight

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(4) Recommended paper

Europe USA

Plain paper Xerox Premier 80 g/m

Xerox Business 80 g/m
Modo Paper DATACOPY 80 g/m
IGEPA X-press 80 g/m2

2

2

Xerox 4200DP 20lb
Xerox 4024 28lb

2

Hammermill Laser Paper 24lb

Recycled paper
Transparency
Label

Xerox Recycled Supreme N/A
3M CG3300 3M CG 3300
Avery laser label L7163 Avery laser label #5160

* This printer can use recycled paper that meets the DIN 19309 specification

CAUTION:

When you are choosing print media, be sure to follow the information given below to prevent
any paper jams, print quality problems or printer damage;

• It is recommended to use long-grained paper for the best print quality. If short-grained

paper is being used, it might be the cause of paper jams.

• Use neutral paper. Do not use acid paper to avoid any damage to the drum unit.

• Avoid using coated paper such as vinyl coated paper.

• Avoid using preprinted or highly textured paper.

• It is recommended to use labels or transparencies which are designed for use in laser

printers.

• Avoid feeding labels with the carrier sheet exposed, or the printer will be damaged.

• Before loading paper with holes such as organizer sheets, be sure to fan the stack well.

• Do not use organizer sheets that are stuck together. The glue that is used might caused

damaged to the printer.

• When printing on the back of pre-printed paper, if the paper is curled, be sure to

straighten the paper as much as possible.

Different types of paper should not be loaded at the same time in the paper tray to avoid any
paper jams or misfeeds.

(5) Paper tray capacity

Paper Tray

Manual feed slot

Paper Capacity 250 sheets (80 g/m2 or 21lb) Single sheet

(6) Print delivery

Face down output tray

2

capacity: Maximum 100 sheets (80 g/m

)

face down only

NOTE:

Face-down: Delivery with the printed face of the paper downwards.

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2.1.3 Printable Area

When using PCL emulation, the edges of the paper that cannot be printed on are shown below.

Portrait

G

E

G

G

C

A

F

Physical page

Printable area

Logical page

E

B

D

G

F

B Physical page length

D

F

Maximum logical page length

Distance from edge of physical page to
edge of logical page

NOTE:

• “Logical page” shows the printable area for a PCL driver.

• “Printable area” shows mechanical printable area of the machine.

• Therefore, the machine can only print within the shaded area when you use a PCL driver.

2-4 Confidential

The table below shows the printable areas when printing on Portrait for each paper size.

Size A B C D E F G

Letter

Legal

Folio

Executive

A4

A5

A6

B5 (JIS)

B5 (ISO)

B6 (ISO)

COM10

MONARCH

C5

DL

DLL

215.9 mm

8.5”
(2,550 dots)

215.9 mm

8.5”
(2,550 dots)

215.9 mm

8.5”
(2,550 dots)

184.15 mm

7.25”
(2,175 dots)

210.0 mm

8.27”
(2,480 dots)

148.5 mm

5.85”
(1,754 dots)

105.0 mm

4.13”
(1,240 dots)

182.0 mm

7.1”
(2,130 dots)

176.0 mm

6.93”
(2,078 dots)

125.0 mm

4.92”
(1,476 dots)

104.78 mm

4.125”
(1,237 dots)

98.43 mm

3.875”
(1,162 dots)

162.0 mm

6.38”
(1,913 dots)

110.0 mm

4.33”
(1,299 dots)

220.0 mm

8.66”
(2,598 dots)

279.4 mm

11.0”
(3,300 dots)

355.6 mm

14.0”
(4,200 dots)

330.2mm

13.0”
(3,900 dots)

266.7 mm

10.5”
(3,150 dots)

297.0 mm

11.69”
(3,507 dots)

210.0 mm

8.27”
(2,480 dots)

148.5 mm

5.85”
(1,754 dots)

257.0 mm

10.11”
(3,033 dots)

250.0 mm

9.84”
(2,952 dots)

176.0 mm

6.93”
(2,078 dots)

241.3 mm

9.5”
(2,850 dots)

190.5 mm

7.5”
(2,250 dots)

229.0 mm

9.01”
(2,704 dots)

220.0 mm

8.66”
(2,598 dots)

110.0 mm

4.33”
(1,299 dots)

203.2 mm

8.0”
(2,400 dots)

203.2 mm

8.0”
(2,400 dots)

203.2 mm

8.0”
(2,400 dots)

175.7 mm

6.92”
(2,025 dots)

198.0 mm

7.79”
(2,338 dots)

136.5 mm

5.37”
(1,612 dots)

93.0 mm

3.66”
(1,098 dots)

170.0 mm

6.69”
(2,007 dots)

164.0 mm

6.46”
(1,936 dots)

164.0 mm

4.44”
(1,334 dots)

92.11 mm

3.63”
(1,087 dots)

85.7 mm

3.37”
(1,012 dots)

150.0 mm

5.9”
(1,771 dots)

98.0 mm

3.86”
(1,157 dots)

207.4 mm

8.17”
(2,450 dots)

279.4 mm

11.0”
(3,300 dots)

355.6 mm

14.0”
(4,200 dots)

330.2mm

13.0”
(3,900 dots)

266.7 mm

10.5”
(3,150 dots)

297.0 mm

11.69”
(3,507 dots)

210.0 mm

8.27”
(2,480 dots)

148.5 mm

5.85”
(1,754 dots)

257.0 mm

10.11”
(3,033 dots)

250.0 mm

9.84”
(2,952 dots)

176.0 mm

6.93”
(2,078 dots)

241.3 mm

9.5”
(2,850 dots)

190.5 mm

7.5”
(2,250 dots)

229.0 mm

9.01”
(2,704 dots)

220.0 mm

8.66”
(2,598 dots)

110.0 mm

4.33”
(1,299 dots)

6.35 mm

0.25”
(75 dots)

6.35 mm

0.25”
(75 dots)

6.35 mm

0.25”
(75 dots)

6.35 mm

0.25”
(75 dots)

6.01 mm

0.24”
(71 dots)

6.01 mm

0.24”
(71 dots)

6.01 mm

0.24”
(71 dots)

6.01 mm

0.24”
(71 dots)

6.01 mm

0.24”
(71 dots)

6.01 mm

0.24”
(71 dots)

6.35 mm

0.25”
(75 dots)

6.35 mm

0.25”
(75 dots)

6.01 mm

0.24”
(71 dots)

6.01 mm

0.24”
(71 dots)

6.27 mm

0.25”
(74 dots)

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

NOTE:

• The paper sizes indicated here should confirm to the nominal dimensions specified by JIS

except B5 (ISO), B6 (ISO).

• The dot size is based on 300 dpi resolution.

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

6.27 mm

0.25”
(74 dots)

2-5 Confidential

Landscape

G

E

G

G

C

A

F

Physical page

Printable area

E

D

B

G

B Physical page length

D Maximum logical page length

F Distance from edge of physical
page to edge of logical page

F

Logical page

NOTE:

• “Logical page” shows the printable area for a PCL driver.

• “Printable area” shows mechanical printable area of the machine.

• Therefore, the machine can only print within the shaded area when you use a PCL driver.

2-6 Confidential

The table below shows the printable areas when printing on Landscape for each paper size.

Size A B C D E F G

Letter

Legal

Folio

Executive

A4

A5

A6

B5 (JIS)

B5 (ISO)

B6 (ISO)

COM10

MONARCH

C5

DL

DLL

279.4 mm

11.0”
(3,300 dots)

355.6 mm

14.0”
(4,200 dots)

330.2mm

13.0”
(3,900 dots)

266.7 mm

10.5”
(3,150 dots)

297.0 mm

11.69”
(3,507 dots)

210.0 mm

8.27”
(2,480 dots)

148.5 mm

5.85”
(1,754 dots)

257.0 mm

10.11”
(3,033 dots)

250.0 mm

9.84”
(2,952 dots)

176.0 mm

6.93”
(2,078 dots)

241.3 mm

9.5”
(2,850 dots)

190.5 mm

7.5”
(2,250 dots)

229.0 mm

9.01”
(2,704 dots)

220.0 mm

8.66”
(2,598 dots)

110.0 mm

4.33”
(1,299 dots)

215.9 mm

8.5”
(2,550 dots)

215.9 mm

8.5”
(2,550 dots)

215.9 mm

8.5”
(2,550 dots)

184.15 mm

7.25”
(2,175 dots)

210.0 mm

8.27”
(2,480 dots)

148.5 mm

5.85”
(1,754 dots)

105.0 mm

4.13”
(1,240 dots)

182.0 mm

7.1”
(2,130 dots)

176.0 mm

6.93”
(2,078 dots)

125.0 mm

4.92”
(1,476 dots)

104.78 mm

4.125”
(1,237 dots)

98.43 mm

3.875”
(1,162 dots)

162.0 mm

6.38”
(1,913 dots)

110.0 mm

4.33”
(1,299 dots)

220.0 mm

8.66”
(2,598 dots)

269.3 mm

10.6”
(3,180 dots)

345.5 mm

13.6”
(4,080 dots)

320.0 mm

12.6”
(3,780 dots)

256.6 mm

10.1”
(3,030 dots)

287.0 mm

11.2”
(3,389 dots)

200.0 mm

7.87”
(2,362 dots)

138.5 mm

5.45”
(1,636 dots)

247.0 mm

9.72”
(2,916 dots)

240.0 mm

9.44”
(2,834 dots)

166.4 mm

6.55”
(1,960 dots)

231.1 mm

9.1”
(2,730 dots)

180.4 mm

7.1”
(2,130 dots)

219.0 mm

8.62”
(2,586 dots)

210.0 mm

8.26”
(2,480 dots)

97.5 mm

3.84”
(1,151 dots)

215.9 mm

8.5”
(2,550 dots)

215.9 mm

8.5”
(2,550 dots)

215.9 mm

8.5”
(2,550 dots)

184.15 mm

7.25”
(2,175 dots)

210.0 mm

8.27”
(2,480 dots)

148.5 mm

5.85”
(1,754 dots)

105.0 mm

4.13”
(1,240 dots)

182.0 mm

7.1”
(2,130 dots)

176.0 mm

6.93”
(2,078 dots)

125.0 mm

4.92”
(1,476 dots)

104.78 mm

4.125”
(1,237 dots)

98.43 mm

3.875”
(1,162 dots)

162.0 mm

6.38”
(1,913 dots)

110.0 mm

4.33”
(1,299 dots)

220.0 mm

8.66”
(2,598 dots)

5.0 mm

0.2”
(60 dots)

5.0 mm

0.2”
(60 dots)

5.0 mm

0.2”
(60 dots)

5.0 mm

0.2”
(60 dots)

4.8 mm

0.19”
(59 dots)

4.8 mm

0.19”
(59 dots)

4.8 mm

0.19”
(59 dots)

4.8 mm

0.19”
(59 dots)

4.8 mm

0.19”
(59 dots)

4.8 mm

0.19”
(59 dots)

5.0 mm

0.2”
(60 dots)

5.0 mm

0.2”
(60 dots)

4.8 mm

0.19”
(59 dots)

4.8 mm

0.19”
(59 dots)

6.27 mm

0.25”
(74 dots)

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

0 mm

NOTE:

• The paper sizes indicated here should confirm to the nominal dimensions specified by JIS

except B5 (ISO), B6 (ISO).

• The dot size is based on 300 dpi resolution.

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

4.2 mm

0.16”
(50 dots)

6.27 mm

0.25”
(74 dots)

2-7 Confidential

2.2 SPECIFICATIONS LIST

MFC7420/7820N

(1/15)

ALL-FB1

US/Canada Europe Asia/Pacific US/Canada Europe Asia/Pacific

Model Name
GENERAL

Print Engine
CPU Speed
Back up Clock
Operating Environment Temperature
Operating Environment Humidity
On/Off Switch
AC Cord inlet
Demo Print Yes (US only) Yes (US only)
Demo Model
Starter Toner Starter Starter
Simultaneous Operation

Input / Output Width

Input / Output Length

ADF
Paper Capacity
Optional Paper Tray
Multi-Purpose Tray
Output Paper Capacity (sheets)
Lower Tray - Automatic Detection
LCD Size
LCD Back-Lit
On-Screen Programming
Memory Capacity (Standard : MByte)
Memory Backup
Optional Memory
Memory Security
Transmission Lock
Setting Lock
Dimensions w/ Carton (WxDxH)
Dimensions w/o Carton (WxDxH)
Weight w/ Carton 13.8kg 14.7kg
Weight w/o Carton

Color

20% - 80% (without condensation)

147.3-215.9 mm / 69.9-215.9 mm

147.3-356.0 mm/ 116.0-406.4 mm

MFC-7420

Laser ( ALL)

SparcLite 133MHz

2hours

10 - 32.5 degrees Centigrade

Yes
Yes

N/A

N/A

Full

Yes

5.8"-8.5" / 2.75"-8.5"

5.8"-14" / 4.56"-16"

up to 35 sheets

250 sheets

N/A
N/A

up to 100 sheets

N/A

16 characters x 2 lines

N/A Yes (1-color)
Yes

16 Mbyte (RAM)

N/A
N/A
N/A
Yes

Yes
550mm x 495mm x 500mm
432mm x 395mm x 294mm

14.5kg 14kg

9.45kg

Front/Top cover: 1581 gray,

Side cover: 1736 gray

10 - 32.5 degrees Centigrade

20% - 80% (without condensation)

147.3-215.9 mm / 69.9-215.9 mm

147.3-356.0 mm/ 116.0-406.4 mm

ALL-FB2

MFC-7820N

Laser ( ALL)
SparcLite 133MHz
Yes (up to 4 days)

Yes
Yes

N/A

N/A

Full

Yes

5.8"-8.5" / 2.75"-8.5"

5.8"-14" / 4.56"-16"

up to 35 sheets

250 sheets

N/A
N/A

up to 100 sheets

N/A

16 characters x 2 lines

Yes

32 Mbyte (RAM)

Yes (up to 4 days)

N/A
Yes
N/A

Yes
550mm x 495mm x 500mm
432mm x 395mm x 294mm

9.5kg

Front/Top cover: 1736 gray,

Side cover: 1581gray

2-8 Confidential

(2/15)

ALL-FB1

US/Canada Europe Asia/Pacific US/Canada Europe Asia/Pacific

Model Name
GENERAL

Power Source

Power Consumption (Copying)
Power Consumption

(Sleep/Standby/Peak)
Power Save ( CPU Sleep )
Sleep Mode (00-99min : w/ OFF

mode)
Energy Star Compliant ( USA Only ) Yes Yes
Total Print pages Counter (Internal /

LCD / Print)
Copy pages Counter (Internal / LCD /

Print)
PC print pages Counter (Internal /

LCD / Print)
Fax RX pages counter (Internal / LCD

/ Print)
Warm up Time ( from SLEEP mode )

Paper Type(Media) Setting

120V AC

50/60

(Canada)Hz

MFC-7420

220-240V AC 50/60Hz

460W 460W

AVERAGE 10W/75W/1032W

N/A N/A

Yes

N/A

Yes / Yes/ Yes

Yes / Yes/ Yes

Yes / Yes/ Yes

Yes / Yes/ Yes

Max. 18 sec. at 73.4 F (23C)

Yes

120V AC

50/60

(Canada)Hz

ALL-FB2

MFC-7820N

220-240V AC 50/60Hz

AVERAGE 10W/75W/1032W

Yes

N/A

Yes / Yes/ Yes

Yes / Yes/ Yes

Yes / Yes/ Yes

Yes / Yes/ Yes

Max. 18 sec. at 73.4 F (23C)

Yes

TELEPHONE

Handset
Off Hook Alarm
Power Failure Phone
Power Failure Dialing
Chain Dialing
Automatic Redial
PBX Feature N/A Yes N/A N/A Yes N/A
Speaker Phone
Handset Volume
Speaker Volume
Buzzer Volume
Ring Volume
Hold/Mute Key
Music on Hold

Monitoring the Line on Hold with Music

One-Touch Dial
Speed Dial

N/A
N/A
N/A
N/A
Yes
Yes

N/A

N/A
Yes (3 steps + OFF)
Yes (3 steps + OFF)
Yes (3 steps + OFF)

N/A

N/A

N/A

8 (4 x 2) locations

200 locations

N/A
N/A
N/A
N/A
Yes
Yes

N/A

N/A
Yes (3 steps + OFF)
Yes (3 steps + OFF)
Yes (3 steps + OFF)

N/A

N/A

N/A

8 (4 x 2) locations

200 locations

2-9 Confidential