Yes
DFP548
Contact your service representative.
Approx. 189 mm
Determine the color in which color dots appear.
Do color dots appear at regular intervals?
Proceed to "(a) If dots appear
at regular intervals of approx. 189 mm".
Proceed to "(b) If dots appear
at regular intervals of approx. 40 mm".
Approx. 40 mm
No / Not Certain
How long is the regular interval at which the
problem occurs?
Perform a test print.
*1
(a) Colored spots appear at 189 mm (7.5 inches) intervals
DFP549
No
No
Yes
Yes
Remove the photoconductor unit
corresponding to the affected color
and check the photoconductor's surface.
Is it scratched?
Replace the photoconductor unit.
Perform a test print.
*1
Has the problem been resolved?
Finished! Contact your service representative.
6. Image Quality Problem: Spots
54
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