STYLUS 800 Service Manual Troubleshooting
5.2 UNIT LEVEL TROUBLESHOOTING
When a problem occurs, you can distinguish the defective unit by referring the symptoms of the
defect. The table below
lists
the
svrrmtom
of certain defects, and you can easily identify what the
problem. Once the problem is identif&i, refer to the flowchart corresponding to each problem.
Table 5-4. Symptom and Problem
Symptom
Problem Flowchart No.
Printer does not operate at
■
LED do not light up.
■
Printer mechanism do not operate. 5.2.1
power on
Error is detected
■
Error
is
indicated by LED or buzzer 5.2.2
■
Printing is not performed.
Failure occurs during printing
■
Abnormal printing (missing dots, etc.)
5.2.3
■
Print quality is poor
Printer does not feed the
■
No paper is fed.
■
Paper feed is irregular.
paper correctly
5.2.4
H
Paper jam occurs.
Control panel operation is
■
No response to button access.
5.2.5
abnormal
Rev. A
5-3