Oki ES 1624n MFP User Manual page 134

Possible cause
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
Image drum is
damaged.
Toner is low.
Periodic black lateral
lines or spots.
The image drum has
been exposed to
light.
Remedy
Change toner cartridge (see "Toner Cartridge
Replacement" on page 72).
Store paper within specified temperature and
humidity levels (see "Specifications" on
page 142).
Use recommended paper (see"Media
Recommendations" on page 10).
Remedy
Store paper within specified temperature and
humidity levels (see "Specifications" on page 142).
Remedy
Replace image drum (see "Image Drum
Replacement" on page 80).
Change toner cartridge (see "Toner Cartridge
Replacement" on page 72).
• If the lines or spots occur at intervals of
approximately 44 - 94 mm, the green surface of
the image drum is damaged or dirty. If damaged,
replace the image drum cartridge (see "Image
Drum Replacement" on page 80). 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 (see "Fuser
Replacement" on page 95).
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 "Image Drum
Replacement" on page 80).
Troubleshooting • 134