Iq 4 Black/White Spots - Xerox PHASER 3124 Service Manual

Image Quality

IQ 4 Black/White spots

Switch off the electricity to the machine. Disconnect the power cord from the customer supply
while performing tasks that do not need electricity. Electricity can cause death or injury. Moving
parts can cause injury.
Description
Dark or blurry black spots occur periodically on the print.
White spots occur periodically on the print.
3-6
WARNING
Checks and Causes
1. If dark or blurry black spots occur
periodically, the rollers in the toner
cartridge may be contaminated with
foreign matter or paper particles.
Refer to periodic defective image, IQ
18.
2. If faded areas or voids occur on a
black image at intervals of 75.5mm
(2.97 inches), the OPC drum surface
is damaged.
3. If a black image is partially printed,
the transfer voltage is defective or the
transfer roller's, PL 4 life has expired,
refer to GP 4.
09/06
Solutions
1. If the spots still appear at
37.7mm (1.48 inches) intervals,
install a new toner cartridge, PL 1.
2. 75.5mm (2.97 inches) repetition:
Carefully clean the OPC drum in
the toner cartridge, PL 1 with a soft,
lint free cloth.
If the problem still persists, install a
new toner cartridge, PL 1.
3. Open the front cover, PL 1 and
clean inside the frame assembly,
PL 2.
Install a new transfer roller, PL 4 if
necessary.
PHASER 3124 / PHASER 3125