Service manual

REPAIR
Troubleshooting
SERVICE MANUAL
3-4
5. Troubleshooting Flow Charts
Fig. 3.1 Troubleshooting Flowchart
Line Feed operates
correctly?
Power ON
LCD operating
correctl
y
?
Carriage (print head)
moves?
Printer home position
detected?
Keys work properly?
Prints normally?
Paper feeds normally?
A
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
Problem No. 1
Problem No. 2
Problem No. 3
Problem No. 4
Problem No. 5
Problem No. 6