November 29, 1999
COPY QUALITY TROUBLESHOOTING
7-1
Trouble-
shooting
7. TROUBLESHOOTING
7.1 COPY QUALITY TROUBLESHOOTING
If there is a copy quality problem that cannot be solved easily, try using the
following troubleshooting procedures, while referring to the point-to-point diagram.
The procedures may not be exhaustive, but they may help you to find the problem.
First, distinguish whether the problem is caused by the remote terminal or by your
machine. If your machine causes the problem, determine whether it is due to a
scanner or printer problem.
NOTE: To make it easier, it is recommended to replace the optical unit instead of
the SBU if there is a problem with the scanner.
Is the print image
O K ?
O K
N G
Is the image
received by fax
O K ?
O K
Is the print image
O K ?
O K
N G
N G
Make a copy
Print a test pattern
Check the remote
terminal
Check the symptom again
Check the scanner
Check the printer
H306T501.WMF