Canon PC 140 - Manual (Page 52)

Troubleshooting
50
3
Copy Image Copy Image
Problems
Problems
If copies appear either too dark
or too light and you can not get a
clear copy, refer to the guidelines
below.
If Dark Bands/ Black
Streaks Appear on
Copies
When this happens follow the
procedure below to clean the fiber
lens. If the problem persists after
cleaning the fiber lens, then
replace the toner cartridge. If Light Bands/ White
Streaks Appear on
Copies
This most often happens when the
cartridge toner is low or not evenly
distributed in the cartridge. To help
distribute the toner in the cartridge,
remove it from the copier and rock
it several times to the left and right
at a 90˚ angle. If the white streaking
continues then replace the
cartridge with a new one.
(See “Replacing Cartridges”,
on p. 21.)
Paper feeding
direction
Cleaning the fiber lens (top
side)
Turn the power switch OFF and unplug
the copier.
Align the platen with the mark by
sliding it to the left.
Fiber lens (top side)
Clean the top side of the fiber lens. To
clean, run a cotton swab (not included)
over the entire length of the lens several
times.
Copy Image Problems