Xerox Phaser 6120 Service Manual

Image-Quality Problems
Phaser® 6120 Color Laser Printer Service Manual
4-33
Colored Spots
Typical Faulty Images
Troubleshooting Procedure
Step Section Check Item Result Action
1 Paper Size Does the paper size loaded in the
tray match the selected paper size?
NO Correct the paper size mismatch.
2 Imaging Unit Are the spots in a single color? NO Replace the Imaging Unit.
3 Are there scratches or lines evident
on the photo conductor surface?
YES Replace the Imaging Unit.
4 Transfer Belt
Unit
Does the transfer belt have
fingerprints, dirt or oil on it?
YES Wipe the surface clean of dirt with
a soft cloth.
5 Is the Transfer Belt scratched? YES Replace the Transfer Belt Unit.
6 Transfer
Roller
Is the Transfer Roller dirty or
scratched?
YES Replace the Transfer Roller.
7 Paper path Is there a foreign object in the paper
path?
YES Remove the foreign object.
8 Fusing Unit Is the Fusing Roller dirty or
scratched?
YES Replace the Fusing Unit.
9 Have steps 1-7 eliminated the
problem?
NO Replace the Problem Toner
Cartridge.
AA
AA
4036fs4052c0
Colored spots

Xerox Phaser 6120 Specifications

General

Color	Yes
Print technology	Laser
Time to first page (black, normal)	13 s
Time to first page (color, normal)	22 s
Print speed (black, normal quality, A4/US Letter)	20 ppm
Print speed (color, normal quality, A4/US Letter)	5 ppm
Internal memory	128 MB
Processor model	300 MHz, 32 bit RISC
Maximum print size	210 x 297 mm
Maximum ISO A-series paper size	A4
I/O ports	USB
Power requirements	200 – 240 VAC / 100 – 127 VAC 50/60 Hz
Networking features	Ethernet/Fast-Ethernet
Non-operating relative humidity (non-condensing)	10 - 85 %
Total input capacity	200 sheets
Maximum input capacity	500 sheets
Printer fonts	PostScript
Maximum duty cycle	35000 pages per month
Number of PostScript fonts	139
Power consumption (printing)	380 W
Storage temperature (T-T)	-20 - 40 °C
Operating temperature (T-T)	10 - 32 °C
Operating relative humidity (H-H)	10 - 80 %

Weight and Dimensions

Dimensions (WxDxH)	442 x 395 x 341 mm