Smear On Back; Uneven Image Density; Gradation Reproduction Failure - Minolta Di350 Service Manual

FrameMaker Ver.5.5E(PC) Di350 TROUBLESHOOTING
98.12.09

(9) Smear on Back

Section Step
Engine 1 Is the Image Transfer Roller
dirty?
2 Has toner spilled from the I/C
inside of the copier?
3 Are the Fusing Rollers dirty?

(10) Uneven Image Density

Section Step
Engine 1 Is the Image Transfer Roller dirty
or deteriorated?
2 Does the image get better when
a copy is made with new paper
loaded?
IR 1 Are the Original Glass, mirrors,
and lens dirty with foreign mat-
ter?
2 Is the Shading Sheet on the Orig-
inal Glass dirty?
3 Is the Exposure Lamp dirty or
deteriorated?
4 Do the connections from CCD to
HGB remain intact?
5 Do the connections from HGB to
UN2 remain intact?

(11) Gradation Reproduction Failure

Section Step
Engine 1 Does the image get better when
a copy is made with new paper
loaded?
IR 1 Is the Shading Sheet dirty?
2 Is the Original Glass dirty?
3 Do the connections from CCD to
HGB remain intact?
4 Do the connections from HGB to
UN2 remain intact?
Check Item
Check Item
Check Item
T-51
Result
YES Clean or change.
YES Clean the interior and change I/
C.
YES Clean or change the Fusing
Rollers.
Result
YES Clean or change the Image
Transfer Roller.
YES Change the paper. Instruct the
user on the storage of paper.
NO Change the I/C or PWB-A.
YES Clean the Original Glass, mir-
rors, and lens.
YES Clean or change.
YES Clean or change.
NO Reconnect.
YES Change CCD, HGB, or UN2, in
that order.
NO Reconnect.
Result
YES Change the paper. Instruct the
user on the storage of paper.
NO Change PWB-A.
YES Clean or change.
YES Clean or change.
NO Reconnect.
YES Change CCD, HGB, or UN2, in
that order.
NO Reconnect.
Action
Action
Action