TASKalfa 306ci Operation Manual page 369

Troubleshooting > Troubleshooting
Symptom
Printouts have vertical lines.
Dirt on the top edge or back
of the paper.
Part of the image is
periodically faint or shows
white lines.
Print on the back of the
sheet is visible on the front.
The previous image remains
and lightly printed.
Checkpoints
Is the slit glass dirty?
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Is the interior of the machine dirty?
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Corrective Actions
Clean the slit glass.
Run [Laser Scanner Cleaning].
Open the right cover. If the machine
interior is dirty with toner, clean it using
soft, dry, lint-free cloth.
Open and then close the right cover.
Select the [System Menu/Counter] key
> [Adjustment/Maintenance] >
[Service Setting] > [MC] and decrease
the adjustment value. Decrease the
adjustment value 1 level at a time from
the current value. 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.
Run [Drum Refresh].
Select the [System Menu/Counter] key
> [Adjustment/Maintenance] >
[Service Setting] > [DEV-CLN]
Run [DEV-CLN].
Set [Prevent Bleed-through] to [On].
Select the [System Menu/Counter] key
> [Adjustment/Maintenance] >
[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 still no improvement,
return the setting to the original value.
10-18
Reference
Page
page 10-3
page 10-40
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page 10-39
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page 6-23
page 8-16
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