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4.2 Print Quality Problems
4-4
Black or white vertical streaks Check the operator panel for toner.
If the Toner low (C/M/Y/K) message is dis-
played with color description, install a new toner kit
for the color. To replace the toner container, see
Chapter 5 Maintenance, section 5.1 Toner Con-
tainer Replacement on page 5-2.
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 advanced beam array lenses.
Open the left cover. Slowly pull the green lens
cleaner knob in and out 2 times. For full details, see
Chapter 5 Maintenance, section 5.3.3 Cleaning the
Advanced Beam Array Lenses on page 5-17.
Faint or blurred printing 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 advanced beam array lenses.
Open the left cover. Slowly pull the green lens
cleaner knob in and out 2 times. For full details, see
Chapter 5 Maintenance, section 5.3.3 Cleaning the
Advanced Beam Array Lenses on page 5-17.
Make sure the paper type setting is correct the paper
being used. See Chapter 3 Using the Operator
Panel, section 3.10.5 Setting the Cassette Paper
Type on page 3-76.
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.
Try adjusting the color control settings using the
printer driver.
Check the operator panel. If the Toner low (C/
M/Y/K) message is displayed with color descrip-
tion, install a new toner kit for the color. To replace
toner, see Chapter 5 Maintenance, section 5.1
Toner Container Replacement on page 5-2.
Printed Results Corrective Action
Table 4-2 (Continued)
Direction
of Paper
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