OKI C7300 Manual De Usuario
C7100/C7300/C7500 Troubleshooting • 387
Faint printing
Fading in patches
Longitudinal black stripes
Possible cause
Remedy
The toner cartridge
is incorrectly
installed.
is incorrectly
installed.
Reinstall the toner cartridge.
Toner is low.
Change toner cartridge.
The paper is
moist.
moist.
Store paper within specified temperature and
humidity levels.
humidity levels.
Paper is
unsuitable for
printer.
unsuitable for
printer.
Use recommended paper.
Possible cause
Remedy
The paper is moist.
Store paper within specified temperature and
humidity levels.
humidity levels.
Possible cause
Remedy
Image drum is
damaged.
damaged.
Replace image drum.
Toner is low.
Change toner cartridge.
Periodic black lateral
lines or spots.
lines or spots.
• If the lines or spots occur at intervals of
approximately 44 - 94 mm, the image drum
(green tube) is damaged or dirty. If damaged,
replace the image drum cartridge. If dirty, wipe
the image drum gently with soft tissue. If this
does not work, replace the image drum.
(green tube) is damaged or dirty. If damaged,
replace the image drum cartridge. If dirty, wipe
the image drum gently with soft tissue. If this
does not work, replace the image drum.
• If the lines or spots occur at intervals of
approximately 113 mm, the fuser roller is
damaged. Change the fuser unit.
damaged. Change the fuser unit.
The image drum has
been exposed to
light.
been exposed to
light.
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.
store it in a dark place for several hours. If this
does not work, replace the image drum.