Problem Sample Cause Solution
Horizontal lines appear on the
page.
Repetitive horizontal lines
appear.
Use the repetitive defects ruler to
identify the dirty roller. Clean the
roller. If the roller cannot be
cleaned, replace the corresponding
assembly.
Horizontal scratches are
present on the fuser roller.
Replace the fuser delivery assembly.
A horizontal white line appears
on the page.
Repetitive horizontal white
lines appear.
Use the repetitive defects ruler to
identify the dirty roller. Clean the
roller. If the roller cannot be
cleaned, replace the corresponding
assembly.
Horizontal scratches are
present on the ITB.
Replace the ITB.
Image in a particular color does
not print in the correct color.
Poor contact exists in the
developing bias contacts of
the developing cartridge.
●
Clean the contacts of the
product and developing
cartridge.
●
Verify that black conductive
grease is applied to the
contact. If the contacts are not
greased, apply grease to the
contacts.
●
Replace the developing
cartridge.
●
If the problem persists, replace
the product.
The developing cartridge
(developing roller) is
defective.
Replace the developing cartridge of
the color that matches the defect.
The high-voltage power-supply
is defective (no primary
charging bias or developing
bias output).
Replace the high-voltage power-
supply lower.
Dropouts appear.
The secondary transfer roller
is deformed or has
deteriorated.
Replace the secondary transfer
roller.
The developing roller is
deformed or has deteriorated.
Replace the developing cartridge of
the color that matches the defect.
The primary charging roller or
photosensitive drum is
deformed or deteriorated.
Replace the image drum cartridge.
The fuser film is deformed or
has deteriorated.
Replace the fuser delivery assembly.
The high-voltage power-supply
is defective (no transfer bias
output).
Replace the ECU.
86 Chapter 2 Solve problems ENWW
To Next Page
Loading...
