6.5 Maintenance Tool
6.5.1
Self test printing
The SELF TEST button prints a setup report page which summarizes printer option settings. It can be used to
easily check the electrical and mechanical states of the printer without the help of a computer. It also distin-
guishes between printer and computer errors, and confirms correct operation after an error recovery. The PRINT
FONT button can be used instead. It prints font report pages which list all available fonts.
6.6 Recommended Spare Parts
The following parts can be replaced.
Printer mechanism unit
1
Upper cover assembly
2
Pick-up roller assembly
3
Feed roller assembly
4
Cover-open switch
5
Main motor
6
Pick-up motor
7
Transfer unit
8
Fan 1
9
Fan 2
10
Power supply board
11
100 to 120 VAC
220 to 240 VAC
High-voltage power supply board (HV board)
12
Separator assembly (friction pad)
13
Stacker-full sensor assembly (SF sensor board)
14
Control panel unit
15
Multi-function feeder board (MFF board)
16
Mechanism board (shield plate)
17
Paper sensing switch (PSS board)
18
ROM board (controller board and ROM)
19
Volume board (print density control board)
20
6-2