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5.2 Print Quality Problems
5-4
Black or white vertical streaks Check the operator panel for toner.
If the Toner low TK-82 message is displayed
with color description, install a new toner kit for the
color. To replace the toner container, see Chapter 6
Maintenance, section 6.1 Toner Container
Replacement on page 6-2.
Clean the main charger and the separation charger.
Open the printer front cover. Pull the green clean-
ing knob slowly in and out a few times. For full
details, see Chapter 6 Maintenance, section 6.5.2
Cleaning the Main Charger Unit on page 6-20.
Have a service person check the fuser unit.
Faint or blurred printing If monochrome printing, check the EcoPrint (toner
saver) setting. If EcoPrint is unintentionally set to
On, switch it to Off on the operator panel.
Clean the main charger and the separation charger.
Open the printer front cover. Pull the green clean-
ing knob slowly in and out a few times. For full
details, see Chapter 6 Maintenance, section 6.5.2
Cleaning the Main Charger Unit on page 6-20.
Check the primary transfer unit for jammed paper
remaining.
For removal of jammed paper, see [Paper Jam —
Paper Feed Unit] on page 5-18.
Make sure the paper type setting is correct the paper
being used. See Chapter 3 Using the Operator
Panel, section 3.10.4 Setting the Cassette Paper
Type on page 3-82.
Conduct color calibration either by switching the
printer off then on or using the printer operator
panel (MENU). For full details, see Chapter 3
Using the Operator Panel, section 3.11.4 Color
Calibration on page 3-100.
Try adjusting the color control settings using the
printer driver.
Try switching the tone mode between Normal and
Fine using the operator panel (Menu>Print Qual-
ity>Tone).
Check the operator panel. If the Toner low TK-
82 message is displayed with color description,
install a new toner kit for the color. To replace toner,
see Chapter 6 Maintenance, section 6.1 Toner Con-
tainer Replacement on page 6-2.
Printed Results Corrective Action
Table 5-2 (Continued)
Direction
of Paper
Feed