3.1.1 Printer/Scanner does not operate at power on
Flowchart 3-1.
Failure occurs during
printing.
Printing is not performed.
Abnormal printing (missing dot, etc.)
Print quality is poor.
Flowchart 3-3
Printer does not feed
paper correctly.
No paper is fed.
Paper feed is irregular.
Paper jam occurs.
Flowchart 3-4
Control panel
operation is abnormal.
No response to button access. Flowchart 3-5
Table 3-2. Symptoms and Problems (continued)
Symptom Problem Flowchart No.
Start
AC voltage
= OK?
No
No
No
No
Yes
Yes
Yes
Yes
Yes
End
Adjust power
supply
Is fuse
F1 burned
out?
Replace the fuse,
disconnect CN10
on MAIN board,
and turn on power
Did
the fuse burn
out again?
Check the output
voltage of CN2 on
the power supply.
Is the
output voltage
normal?
Replace the MAIN
board.
Check the motors,
printhead, and
other
components.
Replace the
power supply.