Brother MFC-440CN Service Manual - Page 2

Browse online or download pdf Service Manual for Software Brother MFC-440CN. Brother MFC-440CN 17 pages. Quick setup guide - english
Also for Brother MFC-440CN: Service Manual (5 pages), Quick Setup Manual (34 pages), Setup Manual (23 pages), Quick Setup Manual (35 pages)

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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

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.

CHAPTER 5

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 6

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 the disassembly order flow that guides you through a

shortcut to the target components.

This chapter also covers screw tightening torques and lubrication points to which the specified

lubricants should be applied during reassembly jobs.

CHAPTER 7

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 8

CLEANING

Provides cleaning procedures not covered by the User's Guide. Before starting any repair work,

clean the machine as it may solve the problem concerned.

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