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Brother MFC-7220 User Manual

Brother MFC-7220
321 pages
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Confidential
FACSIMILE EQUIPMENT
SERVICE MANUAL
MODELS: FAX-2820/2825/2910/2920
MFC-7220/7225N

Table of Contents

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Brother MFC-7220 Specifications

General IconGeneral
Print technologyLaser
Maximum resolution1200 x 600 DPI
Print speed (black, normal quality, A4/US Letter)20 ppm
PC free copyingYes
Copy speed (black, normal quality, A4)20 cpm
FaxingMono faxing
Modem speed14.4 Kbit/s
Total input capacity250 sheets
Total output capacity100 sheets
Auto document feeder (ADF) input capacity20 sheets
DisplayLCD
Market positioningHome & office
Internal memory16 MB
Dimensions (WxDxH)452.12 x 492.76 x 429.26 mm
Power requirementsAC 120V 50/60Hz
All-in-one functionsCopy, Fax, Scan
Color all-in-one functionsPrint
Compatible operating systemsWindows & Mac OS
Bundled softwareScansoft PaperPort SE with OCR for Windows and Presto PageManager for Mac
Sustainability certificatesENERGY STAR
Power consumption (off)10 W
Power consumption (standby)75 W
Power consumption (average operating)1032 W
Operating temperature (T-T)50 - 91 °C
Non-operating relative humidity (non-condensing)20 - 80 %
Digital senderNo
Maximum duty cycle10000 pages per month
Weight and Dimensions IconWeight and Dimensions
Weight10795 g

Summary

PREFACE AND MANUAL ORGANIZATION

CHAPTER 1 PARTS NAMES AND FUNCTIONS

Details the names and functions of the machine's external and internal components.

CHAPTER 2 SPECIFICATIONS

Lists and compares the technical specifications for various Brother facsimile and MFC models.

CHAPTER 3 THEORY OF OPERATION

Explains the scanning, printing mechanisms, sensors, and control electronics.

CHAPTER 4 DATA TRANSFER FOR REPAIR

Provides procedures for transferring fax data from a machine needing repair to prevent data loss.

CHAPTER 5 DISASSEMBLY/REASSEMBLY AND LUBRICATION

Details procedures for disassembling and reassembling machine components, including torque values.

CHAPTER 6 ADJUSTMENTS AND SETTINGS AFTER REPLACEMENT

Outlines adjustments required after replacing major parts like the main PCB, CIS, or laser unit.

CHAPTER 7 CLEANING

Provides cleaning procedures for the machine, referencing the User's Guide for specific parts.

MAINTENANCE AND ERROR HANDLING

CHAPTER 8 MAINTENANCE MODE FUNCTIONS

Describes functions available in the maintenance mode for checks, settings, and adjustments.

CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING

Details error messages, codes, and troubleshooting steps for various machine malfunctions.

APPENDIX 1 SERIAL NUMBERING SYSTEM

Explains the location and coding information for machine and laser unit serial number labels.

APPENDIX 2 FIRMWARE INSTALLATION

Provides instructions for updating firmware stored in the flash ROM on the main PCB.

APPENDIX 3 CUSTOMIZING CODES

Details how to set customizing codes for various preferences based on shipping destination.

APPENDIX 4 FIRMWARE SWITCHES (WSW)

Describes the functions of firmware switches used for customization and environmental matching.

APPENDIX 5 WIRING DIAGRAM

Provides diagrams illustrating the connections between the machine's PCBs.

APPENDIX 6 CIRCUIT DIAGRAMS

Presents the circuit diagrams for the NCU PCB and power supply PCB.

APPENDIX 7 CAUTION LABEL LOCATIONS

Shows where to attach specific caution labels on the machine.

SAFETY AND LOCATION GUIDELINES

SAFETY PRECAUTIONS

Provides essential safety instructions for operating and maintaining the machine.

CHOOSING A LOCATION

Recommends suitable placement for the machine based on environment and accessibility.

MACHINE COMPONENTS AND SPECIFICATIONS

1.1 EQUIPMENT OUTLINE

Provides an overview of the machine's external parts with front and rear views.

1.2 CONTROL PANEL OVERVIEW

Details the layout and functions of the machine's control panel keys and display.

CONTROL PANEL FUNCTIONALITY

Describes the specific functions of One-Touch, Navigation, Mode, and other control panel keys.

1.3 COMPONENTS

Illustrates and lists the major internal components of the equipment.

TECHNICAL SPECIFICATIONS

2.1 GENERAL SPECIFICATIONS

Lists key technical specifications such as memory, ADF, power, dimensions, and weight.

2.1.2 PAPER SPECIFICATIONS

Details paper types, sizes, weights, and other specifications for printing media.

2.1.3 PRINTABLE AREA AND TONER INFO

Defines printable areas and provides toner cartridge weight information and print yield.

2.2 SPECIFICATIONS LIST BY MODEL

Compares detailed specifications across different Brother FAX and MFC models.

THEORY OF OPERATION

3.1 SYSTEM OVERVIEW

Provides a high-level block diagram of the machine's main components and interfaces.

3.2 MECHANICAL COMPONENTS

Details the various mechanical parts and their functions within the printer and scanner mechanisms.

3.3 CONTROL ELECTRONICS

Illustrates the machine's hardware components and their interconnections, including PCBs.

DATA TRANSFER AND DISASSEMBLY

CHAPTER 4 DATA TRANSFER FOR REPAIR

Provides procedures for transferring fax data from a machine needing repair to prevent data loss.

CHAPTER 5 DISASSEMBLY/REASSEMBLY SAFETY AND PREPARATION

Covers safety precautions, preparation steps, and how to access components for disassembly.

DISASSEMBLY FLOWCHART AND MAJOR STEPS

Outlines the disassembly sequence and covers removal of key components like trays and covers.

PCB AND COMPONENT DISASSEMBLY

Details the process for removing various PCBs such as Hook PCB, NCU PCB, and Main PCB.

MECHANICAL UNIT DISASSEMBLY

Details the disassembly of mechanical units like pickup rollers, fixing units, and motors.

5.2 LUBRICATION POINTS

Identifies specific points requiring lubrication during reassembly procedures.

POST-REPLACEMENT PROCEDURES AND CLEANING

CHAPTER 6 ADJUSTMENTS AND SETTINGS AFTER REPLACEMENT

Details adjustments needed after replacing main PCB, CIS, or laser unit.

6.1 MAIN PCB REPLACEMENT PROCEDURES

Steps for loading firmware, initializing EEPROM, setting serial number, and adjusting scanner.

6.2 CIS REPLACEMENT PROCEDURES

Procedure for acquiring white level data and setting CIS scanner area after CIS replacement.

6.3 LASER UNIT REPLACEMENT PROCEDURES

Procedure for inputting the adjusted value of the laser scanner after replacement.

CHAPTER 7 CLEANING

Provides cleaning procedures for the machine, referencing the User's Guide for specific parts.

USER GUIDE REFERENCE FOR DRUM/TONER CLEANING

Directs users to the User's Guide for cleaning procedures related to the drum unit and toner cartridge.

MAINTENANCE MODE FUNCTIONS AND ERROR HANDLING

CHAPTER 8 MAINTENANCE MODE

Describes the maintenance mode functions for checks, settings, and adjustments.

8.1 ENTRY AND USER ACCESS

Explains how to enter the maintenance mode and allows limited user access to specific functions.

8.2 MAINTENANCE MODE FUNCTIONS LIST

Provides a comprehensive list of available maintenance mode functions with their codes and references.

8.4 DETAILED FUNCTION DESCRIPTIONS

Details specific maintenance mode functions like EEPROM initialization, tests, and data outputs.

ERROR INDICATION AND TROUBLESHOOTING

CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING

Covers error messages, codes, and troubleshooting procedures for equipment and communication issues.

9.1 ERROR MESSAGES AND CODES

Lists equipment errors with causes and actions, and provides detailed error codes for machine errors.

9.2 TROUBLESHOOTING PAPER FEED/SOFTWARE ISSUES

Addresses paper feeding problems and incorrect software settings that affect printing.

9.2 TROUBLESHOOTING MALFUNCTIONS AND IMAGE DEFECTS

Provides steps for troubleshooting general malfunctions and specific image quality defects.

9.2 TROUBLESHOOTING NETWORK AND FAX ISSUES

Offers guidance for network connectivity problems and fax function troubleshooting.

APPENDICES: SYSTEM INFORMATION AND CONFIGURATION

APPENDIX 1 SERIAL NUMBERING SYSTEM

Explains the location and coding information for machine and laser unit serial number labels.

APPENDIX 2 FIRMWARE INSTALLATION

Provides instructions for updating firmware and setting machine ID codes via PC.

APPENDIX 3 CUSTOMIZING CODES

Details how to set customizing codes for various preferences based on shipping destination.

APPENDIX 4 FIRMWARE SWITCHES (WSW)

Describes firmware switch functions for dial, modem, function, and other settings.

APPENDIX 5 WIRING DIAGRAM

Provides diagrams illustrating the connections between the machine's PCBs.

APPENDIX 6 CIRCUIT DIAGRAMS

Presents the circuit diagrams for the NCU PCB and power supply PCB.

APPENDIX 7 CAUTION LABEL LOCATIONS

Shows where to attach specific caution labels on the machine.

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