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CHAPTER 1 PARTS NAMES AND FUNCTIONS
Contains external views and names of component s 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
CHAPTER 3 THEORY OF OPERATION
Gives an overview of the scanning and printing m echanisms 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
CHAPTER 6 DISASSEMBLY/REASSEMBLY AND LUBRICATION
Details procedures for disassembling and reassembli ng the machine together with related notes.
The disassembly order flow provided enables you to see at a glance the quickest way to get to
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 torqu es and lubrication points to which the specified
lubricants should be applied during reassembly jobs.
CHAPTER 7 ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS
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 U ser's Guide. Before starting any repair work,
clean the machine as it may solve the problem concerned.
CHAPTER 9 MAINTENANCE MODE
Describes the maintenance mode which is exclusiv ely designed for the purpose of checks, settings
and adjustments of the machine 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 dr ive conditions of the head/carriage unit or the
paper feed roller and paper ejection roller in the e ngine unit, if those units have been replaced, or
for setting the CIS scanner area, for example. Y ou can also customize the EEPROM according to
the shipment destination of the machine concer ned. 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).
Appendix 1 Reading Labels
Shows the location of labels put on some part s and describes the coding information for serial
number, property data, and manufacturing information.
Appendix 2 Firmware Installation
Provides instructions on how to change firmware stored in the flash ROM on the main PCB or load
firmware to a new main PCB from the host PC.
Appendix 3 EEPROM Customizing Codes
Provides instructions on how to set up the EEPROM customizing codes for the various preferences
exclusively designed for each destination. The sp ecified customizing code is stored in the
EEPROM mounted on the main PCB. If the main PCB is replaced, therefore, you need to set up the
proper customizing code with the machine in the maintenance mode.
Customizing codes customize firmware for individual models, enabling the common firmware to
be used for various models. A list of EEPROM cu stomizing codes comes with the firmware data
provided by Brother Industries.
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 Diagrams
Provides the wiring diagrams that help you understand the connections between PCBs.
Appendix 6 Circuit Diagrams
Provides the circuit diagrams of the power supply PCB.
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