Xerox Phaser 6120 Service Manual

Print Engine Theory of Operation
Phaser® 6120 Color Laser Printer Service Manual
7-29
Pressure Sequence
1. When the Pressure/Retraction Solenoid /Cleaning Blade (SL3) is energized in the
condition, in which the Cleaning Blade is retracted from the Transfer Belt, the pressure
cam rotates a half turn. This pushes the lever backward.
2. When the lever is pushed backward, the Cleaning Blade is returned. Then, the Cleaning
Blade is pressed against the Transfer Belt.
Home Position Detection
■ The position of the Cleaning Blade is unknown when the Power Switch is turned ON or
the cover is opened and closed, the machine performs a home position detection sequence
during a warm-up cycle.
■ During the warm-up cycle, the Pressure/Retraction Solenoid /Cleaning Blade (SL3) is
energized to start a pressure/retraction sequence. When the Retraction Position Sensor /
Cleaning Blade (PC6) is blocked, the Pressure/Retraction Solenoid /Cleaning Blade (SL3)
is de-energized.
1st Transfer Roller Voltage ON/OFF Control
Pressure Cam
Lever
4139to2078e0
4139to2103e0
/TOD (Image Write Start signal)
1st Transfer output
Belt Positioning Sensor (PC4)
Image write start position for
a paper size of A4 or smaller
Image write start position for
a paper size greater than A4
Rack Motor (M2)

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