Xerox Phaser 6120 Service Manual

Print Engine Theory of Operation
Phaser® 6120 Color Laser Printer Service Manual
7-28
Transfer Timing Operation
Retraction Sequence
1. Drive from the Main Motor (M1) is transmitted to the drive gear.
2. Rotation of the drive gear is transmitted to the pressure cam.
3. When the Pressure/Retraction Solenoid /Cleaning Blade (SL3) is energized, the half-
moon-shaped pressure cam rotates a half turn to push the lever forward.
4. When the lever is pushed forward, the Cleaning Blade is retracted.
5. When the Cleaning Blade is retracted, it results in the Cleaning Blade being retracted from
the Transfer Belt.
6. During this time, the Retraction Position Sensor /Cleaning Blade (PC6) detects whether or
not the Cleaning Blade is retracted from the Transfer Belt
.
Pressure/Retraction Solenoid
/Cleaning Blade (SL3)
Main Motor (M1)
Retraction Position Sensor
/Cleaning Blade (PC6)
SL3 Energization Signal (after Main Motor has been energized)
Pressure/Retraction Solenoid
/Cleaning Blade (SL3)
Main Motor (M1)
Retraction Position Sensor
/Cleaning Blade (PC6)
When power is turned ON:
To pressed position
During print cycle:
Y-TOD (CD Print Start signal for yellow)
To retracted position
K print completed
To pressed position
4139to2076e0
Pressure Cam
Lever
4139to2077e0

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