User Guide

Solving Problems with Printing Quality 83
Lateral lines
appear cycli-
cally (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 75 mm
spacing.
Replace the image transfer roller.
Lateral lines have 95 mm
spacing.
Replace the entire OPC drum kit.
Lateral lines have 204 mm
spacing.
Replace the fusing unit
Trailing edge 35 mm, other
spacing
Replace the entire OPC drum kit.
Vertical
streaking
appears.
The laser lens cover may be
dirty.
Check to see if the laser lens cover is dirty. If necessary,
clean it with a clean soft cloth.
One or more toner cartridges
may be defective.
The item may be defective or misinstalled. Remove the
designate item, check it for damage and reinstall it. If nec-
essary, replace the entire drum kit.
The OPC drum may be
defective or misinstalled.
The fuser unit may be defec-
tive or misinstalled.
The transfer unit may be
defective or misinstalled.
If a wide vertical white band
appears, check the transfer
belt surface.
Clean the transfer belt surface. If necessary, replace it.
Make sure that the transfer unit is closed.
Symptom Cause Solution