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4.2 Print Quality Problems
4-5
Grey background Clean the main charger units.
Open the left cover. Slowly pull the green wire
cleaner knob to each of the main charger units in
and out a few times. For full details, see Chapter 5
Maintenance, section 5.3.1 Cleaning the Main
Charger Unit on page 5-11.
Check the charger units installation.
Open the left cover and check that the charger units
are correctly installed and seated as far as it will go.
See Chapter 5 Maintenance, section 5.3 Cleaning
the Printer on page 5-11.
Conduct color calibration either by switching the
printer off then on or using the printer operator
panel. For full details, see Chapter 3 Using the
Operator Panel, section 3.13.13 Color Calibration
on page 3-104.
Dirt on the top edge or back of the paper Check the paper chute and the ramp.
Pull out the paper transfer unit and check for toner
on the paper ramp. Clean the paper ramp using a
soft, dry, lint-free cloth. For details, see Chapter 5
Maintenance, section 5.3.2 Cleaning the Paper
Transfer Unit on page 5-16.
Clean the main charger units.
Open the left cover. Slowly pull the green wire
cleaner knob to each of the main charger units in
and out a few times. For full details, see Chapter 5
Maintenance, section 5.3.1 Cleaning the Main
Charger Unit on page 5-11.
Clean the parts in the paper paths—such as the
paper cassette, etc.
Check the transfer roller.
If the transfer roller is dirty with toner, try printing
several pages.
Printed Results Corrective Action
Table 4-2 (Continued)
Paper Ramp