Field Service Ver. 1.0 Aug. 2005 12. Troubleshooting
169
FK-503
Troubleshooting
Symptom
Item
No.
Cause Remedy
Received
image is
squeezed
1 Are characters of copied image
or a test image also squeezed?
Improper setting of document
contrast: Received image of
small characters or blue copies
with “contrast” switch set
“Darker”.
Error in remote machine:
The following causes are possi-
ble:
A. Failure in board of scanner
unit
B. Improper adjustment of opti-
cal focus
C. Dew on optical lenses
(Proceed to anti-dew.)
YES Failure in the remote side (improper
setting of document contrast, and error
in the transmission unit of the remote
terminal).
NO Go to item 2.
2 Any improvement after replacing
the imaging unit?
YES Replace the imaging unit.
NO For details see Copier service manual
“Image quality problem”.
Clock mal-
functions
1 No improper operation? YES Refer User’s Guide for operation.
NO Go to item 2.
2 Any improvement after replacing
RAMS board?
YES Replace RAMS board.
NO Go to item 3.
3 Any improvement after replacing
MFBS board?
YES Replace MFBS board.
NO Replace the PWB-A.
Neither
“Sending” nor
“Receiving”
are displayed.
1 Is an alarm message on screen? YES Correct the failure and reset the alarm.
NO Go to item 2.
2 Is the external telephone on-
hooked?
YES Go to item 3.
NO Set the external telephone off-hook
then press the communication switch.
3 Are you printing something such
as report?
YES Proceed to communication after com-
pleting print jobs.
NO Go to item 4.
4 Any improvement after replacing
Operating panel?
YES Replace Operating panel.
NO Go to item 5.
5 Any improvement after replacing
the cable between Operating
panel and BCRS?
YES Replace the cable between Operating
panel and BCRS.
NO Go to item 6.
6 Any improvement after replacing
FAX board?
YES Replace FAX board.
NO Go to item 7.
7 Any improvement after replacing
MFBS board?
YES Replace MFBS board.
NO Replace the PWB-A