Oki C5100 User Manual page 148

Faint printing
Possible cause
The toner cartridge is
incorrectly installed.
Toner is low.
The paper is moist.
Paper is unsuitable for
printer.
Fading in patches
Possible cause
The paper is moist.
Longitudinal black stripes
Possible cause Remedy
Image drum is
damaged.
Toner is low.
Periodic black
lateral lines or
spots.
The image drum
has been
exposed to light.
Remedy
Reinstall the toner cartridge (see page 87).
Change toner cartridge (see page 87).
Store paper within specified temperature and
humidity levels (see page 152).
Use recommended paper (see page 11 ).
Remedy
Store paper within specified temperature and
humidity levels (see page 152).
Replace image drum (see page 94).
Change toner cartridge (see page 87).
• If the lines or spots occur at intervals of approximately
44 to 94 mm, the green surface of the image drum is
damaged or dirty. If damaged, replace the image drum
cartridge (see page 94). If dirty, wipe the image drum
gently with soft tissue. If this does not work, replace
the image drum (see page 94).
• If the lines or spots occur at intervals of approximately
113 mm, the fuser roller is damaged. Change the fuser
(see page 108).
Remove the image drum from the printer and store it in a
dark place for several hours. If this does not work,
replace the image drum (see page 94).
C5100 Troubleshooting • 148