Minolta Di251f Service Manual page 158

Item
Symptom
No.
Received image
is too light or
faded.
Received image
is squeezed
Cause
1 Are copied image or a test
image also too light or
faded?
Note:
The following causes may
be possible (improper set-
ting of document contrast): a
document with small blue
characters or file lines
2 Any improvement after
replacing the imaging unit?
1 Are characters of copied
image or a test image also
squeezed?
Improper setting of docu-
ment contrast: Received
image of small characters or
blue copies with "contrast"
switch set "Darker".
Error in remote machine:
The following causes are
possible:
A. Failure in board of scan-
ner unit
B. Improper adjustment of
optical focus
C. Dew on optical lenses
(Proceed to anti-dew.)
2 Any improvement after
replacing the imaging unit?
YES Go to item 2.
Failure in the remote side
(improper setting of docu-
ment contrast, improper doc-
ument handling, poor line
condition, and error in the
NO
transmission unit of the
remote terminal).
YES Replace the imaging unit.
For details see Copier service
NO manual "Image quality prob-
lem."
Failure in the remote side
(improper setting of docu-
YES ment contrast, and error in
the transmission unit of the
remote terminal).
Go to item 2.
NO
YES Replace the imaging unit.
For details see Copier service
NO manual "Image quality prob-
lem."
T-11
Remedy