Symptom

Cause

Solution

 

 

 

 

Image

The laser lens is dirty.

Clean the laser lens.

defects.

 

 

A toner cartridge may

Remove the toner cartridges and

 

 

 

 

be leaking.

check them for damage. If one is dam-

 

 

 

aged, replace it.

 

 

 

 

 

 

A print unit may be

Remove the print unit with the color

 

 

defective.

causing the abnormal image.

 

 

 

Replace it with a new print unit.

 

 

 

 

 

 

 

Lateral lines

The printer is not

Place the printer on a flat, hard, level

or bands

level.

surface.

appear on

 

 

The media path is

Print several sheets and the excess

image.

dirty with toner.

toner should disappear.

 

 

 

 

 

 

 

 

One or more of the

Remove the print units and check them

 

 

print units may be

for damage. If one is damaged,

 

 

defective.

replace it.

 

 

 

 

 

 

 

 

 

 

 

 

Colors look

One or more of the

Remove the print units and verify that

drastically

print units may be

the toner is distributed evenly on each

wrong.

defective.

cartridge roller, and reinstall the print

 

 

 

units.

 

 

 

 

 

 

One or more of the

Check the control panel for an TONER

 

 

toner cartridges may

LOW X or TONER EMPTY X mes-

 

 

be low or empty.

sage. If necessary, replace the speci-

 

 

 

fied toner cartridge.

 

 

 

 

Colors are

The front cover is not

Make sure that the printer’s front cover

not register-

properly closed.

is closed.

ing properly;

 

 

One or more of the

Remove the print units and check them

colors are

print units may be

for damage. If one is damaged,

mixed or

defective.

replace it.

have page-

 

 

The media is moist

Remove the moist media and replace it

to-page vari-

ation.

from humidity.

with new, dry media.

 

 

 

 

 

 

212

Solving Problems with Printing Quality