10-15
Troubleshooting > Troubleshooting
Printed Image Trouble
When the following printed image trouble occurs, implement appropriate procedures.
Symptom Checkpoints Corrective Actions
Reference 
Page
Printed images are totally 
too light. 
Is the paper damp? Replace the paper with new paper. page 3-2
Have you changed the density? Select appropriate density level. page 6-17
page 8-34
Is the toner distributed evenly within the 
toner container?
Shake the toner container from side to 
side several times.
page 10-7
Is EcoPrint mode enabled? Disable [EcoPrint] mode. page 8-29
Are the drum unit and developer unit 
installed correctly?
Correctly install the drum unit and 
developer unit.
page 10-4
― Make sure the paper type setting is 
correct for the paper being used.
page 8-17
― Select the [System Menu/Counter] key 
> [Adjust/Maint.] > [Service Setting] > 
[Drum Refresh], and then select [Yes].
―
Printed images are too dark 
even though the background 
of the scanned original is 
white. 
Have you changed the density? Select appropriate density level. page 6-17
page 8-34
― Select the [System Menu/Counter] key 
> [Adjust/Maint.] > [Service Setting] > 
[Drum Refresh], and then select [Yes].
―
― Select the [System Menu/Counter] key 
> [Adjust/Maint.] > [Service Setting] > 
[MC] and increase the adjustment value. 
Increase the adjustment value 1 level at 
a time from the current value. If there is 
no improvement after the value is 
increased by 1 level, increase by 1 level 
again. If there is no improvement, lower 
in increments of 1 level from the original 
setting. If there is no improvement after 
the value is decreased by 1 level, 
decrease by 1 level again. If there is still 
no improvement, return the setting to 
the original value.
―
Copies have a moire pattern 
(dots grouped together in 
patterns and not aligned 
uniformly). 
Is the original a printed photograph? When making copies
Set the original image to [Photo].
page 6-16
― When making copies
Set [
Sharpness
] to a value from [
-1
] to [
-3
].
page 6-19
― When making copies
Select the [System Menu/Counter] key 
> [Copy] > [DP Read Action], and set 
to [Quality Priority].
page 8-28
Texts are not clearly printed.  Did you choose appropriate image 
quality for the original?
Select appropriate image quality. page 6-16
― When making copies
Set [Sharpness] to a value from [+1] to 
[+3].
page 6-19