Chapter 5 Service Functions; Maintenance Mode; Entry To The Maintenance Mode; How To Enter The End User-Accessible Maintenance Mode - Brother DCPJ525W Service Manual

CHAPTER 5 SERVICE FUNCTIONS

This chapter describes the maintenance mode and other service functions, which are exclusively
designed for the purpose of checks, settings and adjustments of the machine and can be triggered by the
keys on the control panel*.
* For key operations, refer to
1

MAINTENANCE MODE

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 and paper
feed roller/paper ejection roller in the engine unit, if those units 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,
panel PCB or sensors, perform a print test, display the log information or error codes, and configure
firmware switches (WSW).
1.1

Entry to the Maintenance Mode

1.1.1 How to Enter the End User-accessible Maintenance Mode

Basically, the maintenance-mode functions listed in
accessed by service personnel only. However, you can allow end users to access some of these
under the guidance of service personnel (e.g., by telephone).
The user-accessible functions are shaded in the table given in
accesses the firmware switches, each of which has eight selectors. You should not allow end
users to access all of those selectors, but you can allow them to access user-accessible selectors
which are shaded in the firmware switch tables in the "Firmware Switches (WSW)" document
separately issued.
The service personnel should instruct end users to follow the procedure given below.
(1) Models with
Press the
Start (Mono Start) and
Models without
Press the Menu, Black Start (Mono Start) and Menu keys in this order.
Tip: Either of the following operations also makes the machine enter the maintenance
mode.
- Press the Menu, Black Start (Mono Start), and 0 keys in this order, in the same way as
conventional models.
- While holding down the Color Start key, plug the power cord into an electrical outlet.
(2) Wait for the machine to display "
machine is ready to accept entry from the keys. Enter the desired function code.
(3) To quit the maintenance mode operation in midway and switch to standby, press the Stop/
Exit key. When each of the user-accessible functions is completed, the machine
automatically returns to standby.
Note: The operating procedure of the user-accessible maintenance mode may differ slightly
depending upon machine models.
Section 1.2 in this chapter.
key
and Black Start (Mono Start) keys simultaneously. Then press the Black
keys in this order.
key
Section 1.3
" on the LCD, indicating that the
5-1
in this chapter should be
Section 1.3. Function code 10
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