Xerox Phaser 6120 Service Manual

Image-Quality Problems
Phaser® 6120 Color Laser Printer Service Manual
4-40
Uneven Pitch
Typical Faulty Images
Troubleshooting Procedure
Step Section Check Item Result Action
1 Toner
Cartridge
Is the Toner Cartridge for each color
of toner installed in position?
NO Reinstall.
2 Laser (PH)
Unit
Is the Laser Unit (PH) Unit secured in
position with the fixing screw?
NO Secure it in position.
3 Toner
Cartridge
Is the drive mechanism of the Toner
Cartridge dirty or damaged?
YES Clean or replace the Toner
Cartridge.
4 Imaging Unit Is the photo conductor dirty,
scratched, or worn?
YES Replace the Imaging Unit.
5 2nd Transfer
Roller
Are the Transfer Roller and drive
mechanism dirty, deformed, or worn?
YES Replace the 2nd Transfer Roller.
6 Fusing Unit Are the rollers and drive mechanism
of the Fusing Unit dirty, scratched,
deformed, or worn?
YES Replace the Fusing Unit.
7 Have steps 1-6 eliminated the
problem?
NO Replace the Transfer Belt Unit.
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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