NEC 6110 Solving Problems with Printing Quality94

Solving Problems with Printing Quality94
Lateral
(horizon-
tal) lines or
bands
appear on
image.
The printer is not on a
level enough surface. Level the printer (not exceeding 1.5° slant).
The media path is dirty
with toner. Print several sheets and the excess toner should disappear.
The toner cartridge is
damaged. Remove the toner cartridge and check for damage. If necessary, replace it.
The OPC belt surface
is scratched or dam-
aged.
Remove the OPC belt cartridge and check the
green photosensitive surface for scratches. If
necessary, replace the OPC belt cartridge.
The transfer roller is
misinstalled or defec-
tive.
Remove the transfer roller and reinstall it. If
necessary, replace it.
The transfer unit is
open. Make sure the transfer unit is closed.
Lateral
(horizon-
tal) lines
appear
cyclically
(evenly
spaced) on
image.
Lateral lines have 1–2
mm spacing. Replace the laser lens cover.
Lateral lines have 35
mm spacing. Replace the color toner cartridge.
Lateral lines have 95
mm spacing. Replace the OPC belt cartridge.
Lateral lines have 204
mm spacing. Replace the fusing unit.
Trailing edge 35 mm,
other spacing Replace the OPC belt cartridge.
Symptom Cause Solution