MFC3420C ::...


	Home


	FAQ


	Contact Us


	Shopping Cart

Printable version

Manufacturers

ALPINE
APPLE
BLAUPUNKT
BROTHER
CANON
CASIO
CLARION
COPYSTAR
DENON
DEVELOP

Other manufacturers...

Special

Gift certificates

Help

Service Manuals, Parts Catalog Online Shop :: BROTHER :: Facsimile/Multifunctions :: MFC3420C

	MFC3420C

This Service Manual is intended for use by service personnel and details the specifications,
construction, theory of operation, and maintenance for the Brother facsimile equipment MFC-3420C (MFC 3420C)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 facsimile equipment is always in the best possible condition for the customer, service personnel must adequately understand and apply this manual.

This manual is made up of eight 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
Summarizes the scanner and printing mechanisms and control electronics. It also provides
information about sensors and their actuators. This chapter helps you to understand the operating principles and isolate the source of a problem (troubleshooting).
CHAPTER 4 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 5 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT
Details adjustments and updating of settings, which are required if the print head unit, carriage,
PCBs and some other parts have been replaced. Settings are stored in the EEPROM on the driver PCB.
CHAPTER 6 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.
CHAPTER 7 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 print head 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 8 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 of the
facsimile machine from the host PC. No hardware replacement is required for updating.
Control programs of the facsimile machine are stored in the flash ROM on the main PCB. The
updating procedure is required also if the main PCB has been replaced since a new PCB supplied has no firmware installed.
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 driver PCB. If the driver 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 may 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.

Details


SKU	SKU564
Language: ............................	English
Packing: ...............................	ZIP-Archive
Format: ................................	PDF document
Pages: .................................	295
Price:	$7.95 (€ 6.36)

Options

Quantity

1 (this product is downloadable)

Add to cart

Add to wish list

	Send to friend

	Recommended products list

Customers who bought this product also bought the following products:

	Customer feedback

Product rating

Voting

Customer Reviews

Author: Unknown

Your cart

	Cart is empty

View cart
Checkout
Wish list
Orders history

Authentication

News

Sep 6, 2009
The new service manuals are adding daily!

Previous news