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Troubleshooting
91
White streaks or color streaks
appear.
Toner is almost depleted. When the [Add Toner XXX] or [Toner
is almost empty: XXX] message appears on the display panel,
or the toner end LED on the control panel is lit, replace the
toner cartridge of the displayed color.
See p.28 “
Replacing the Toner Cartridge”.
When [Replace Black PCU] or [Replace Color PCU] appears on
the display, replace the photo conductor unit.
See p.35 “
Replacing the Photo Conductor Unit”.
White or color rivers appear. When [Replace Black PCU] or [Replace Color PCU] appears on
the display, replace the photo conductor unit.
See p.35 “
Replacing the Photo Conductor Unit”.
The backs of printed sheets are
blemished.
When removing a jammed sheet, the inside of the printer
may have become dirtied. Print several sheets until they
come out clean.
If document size is larger than paper size, e.g. A4 document
on B5 paper, the back of the next printed sheet may be dirt-
ied.
If rubbed with your finger, it
smears out.
The setting of the paper may not be correct. For example, al-
though thick paper is used, the setting for thick paper may not
be set.
• Check the paper settings of this machine.
See p.9 “
Types of Paper and Other Media”.
• Check the paper settings of the printer driver.
See the printer driver Help.
The fusing unit is deteriorated or damaged. Replace the unit.
See p.44 “
Replacing the Fusing Unit”.
Status Possible Causes, Descriptions, and Solutions