Xerox Phaser 6120 Service Manual

Image-Quality Problems
Phaser® 6120 Color Laser Printer Service Manual
4-35
Blank or Black Prints
Typical Faulty Images
Troubleshooting Procedure
Step Section Check Item Result Action
1 Image check Does a blank print occur? YES Check the Laser Unit (PH)
connector for proper connection.
2 Imaging Unit Is the gear of the Imaging Unit drive
mechanism installed properly?
NO Check or correct the drive
transmitting section or replace the
Imaging Unit.
3 Is the charge corona voltage contact
or photo conductor ground contact of
the Imaging Unit connected properly?
NO Check, clean, or correct the
contact.
4 High Voltage
Unit
Is the connector connected properly? NO Reconnect.
5 Have steps 1-4 eliminated the
problem?
NO
■ Replace the High Voltage
Unit.
■ Replace the Mechanical
Control Board.
■ Replace the Laser Unit (PH)
Unit.
4036fs4038c0
4036fs4039c0
Blank print Black print

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