Symptom
Cause
Solution
There are toner
smudges on the
back side of the
page (whether or
not it has been
duplexed).
The media path is dirty with
toner.
Print several blank sheets and the excess toner should
disappear.
One or more of the toner
cartridges are defective.
Remove the toner cartridges and check for damage. If it is
damaged, replace it.
One or more of the
photoconductor units is
defective.
Remove the photoconductor units and check for damage. If
it is damaged, replace it.
The media transfer roller is dirty.
Clean the media transfer roller.
Contact your vendor or authorized service provider.
Abnormal areas
(white, black, or
color) appear in a
regular pattern.
The laser lens is dirty.
Clean the laser lens.
A toner cartridge may be
defective.
Remove the toner cartridges with the color causing the
abnormal image. Replace it with a new toner cartridge.
One or more of the
photoconductor units is
defective.
Remove the photoconductor units and check for damage. If
it is damaged, replace it.
The exposure glass is dirty.
Clean the exposure glass. For more details, refer to “Cleaning
the Machine” on page 191. If this does not solve the problem,
scan from the original glass.
Image defects.
The laser lens is dirty.
Clean the laser lens.
A toner cartridge may be leaking.
Remove the toner cartridges and check for damage. If it is
damaged, replace it.
A toner cartridge may be
defective.
Remove the toner cartridge with the color causing the
abnormal image.
Replace it with a new toner cartridge.
One or more of the
photoconductor units may be
defective.
Remove the photoconductor units and check for damage. If
it is damaged, replace it.
Epson AcuLaser CX37 Series Printer/Copier/Scanner User’s Guide
Troubleshooting
228