Konica Minolta Bizhub 282 Service Manual

Field Service Ver. 1.0 Dec. 2008 12. Troubleshooting
195
FK-503
TROUBLESHOOTING
12.3 Diagnosis by Symptoms
• Possible causes of various problems and their remedies are shown below. Carry out
troubleshooting according to this table.
Symptom
Item
No.
Cause Remedy
Received
image is
stretched with
ADF
1 Printed image is excessively
stretched in the copy mode?
NOTE
• The following causes may be
possible (improper docu-
ment handling): special
paper such as very thick
paper, non-carbon print
paper, carbon print paper.
YES Go to item 2.
NO Failure in remote terminal (improper
document handling, error in the trans-
mission unit of the remote terminal).
2 Is an image from the service cen-
ter also stretched?
YES Go to item 3.
NO Go to item 4.
3 Any improvement after replacing
MFBS board?
YES Replace MFBS board.
NO Replace the PWB-A
4 Is the contact of feed roller gears
OK?
YES Go to item 5.
NO Replace the feed roller gear unit.
5 Any paper dust on feed rollers or
pick-up rollers?
YES Clean up rollers.
NO Replace the leaf spring.
Received
image is
shrunk too
much.
1 Printed image is excessively
shrunk in the copy mode?
YES Go to item 2.
NO Failure in the remote terminal (improper
document handling, error in the trans-
mission unit of the remote terminal).
2 Is an image from the service cen-
ter also shrunk?
YES Go to item 4.
NO Go to item 3.
3 Any improvement after replacing
PKG ASS’Y (MFBS)?
YES END
NO Go to item 4.
4 Any improvement after replacing
MFBS board?
YES Replace MFBS board.
NO Replace the PWB-A
Received
image is too
light or faded.
1 Are copied image or a test image
also too light or faded?
NOTE
• The following causes may be
possible (improper setting of
document contrast): a docu-
ment with small blue charac-
ters or file lines
YES Go to item 2.
NO Failure in the remote side (improper
setting of document contrast, improper
document handling, poor line condi-
tion, and error in the transmission unit
of the remote terminal).
2 Any improvement after replacing
the imaging unit?
YES Replace the imaging unit.
NO For details see Main service manual
“Image quality problem”.

Konica Minolta Bizhub 282 Specifications

General

Functions	Print, Copy, Scan, Fax
Print Resolution	600 x 600 dpi
Copy Resolution	600 x 600 dpi
Scan Resolution	600 x 600 dpi
Fax Transmission Speed	33.6 Kbps
Maximum Paper Size	A4
Duplex Printing	Yes
Printing Technology	Laser
Original Size	A4
Print Speed	28 ppm
Copy Speed	28 cpm
Network Connectivity	Ethernet
USB Connectivity	Yes
Zoom Range	25% - 400%
Scan Speed (B&W)	28 ipm