Xerox Phaser 6120 Service Manual

Print Engine Theory of Operation
Phaser® 6120 Color Laser Printer Service Manual
7-31
2nd Transfer Roller Pressure/Retraction Mechanism
■ During color printing, the toner image of each color of toner is transferred to the Transfer
Belt (a total of four times, once for each color). Pressure/retraction control with respect to
the Transfer Belt is provided for the 2nd Transfer Roller.
■ In the standby state, the 2nd Transfer Roller is in a position retracted from the Transfer
Belt.
Pressure/Retraction Operation
■ The pressure/retraction operation is performed by the Main Motor (M1), Pressure/
Retraction Solenoid /2nd Image Transfer (SL4), and Pressure/Retraction Clutch.
■ When the Pressure/Retraction Solenoid /2nd Image Transfer (SL4) is energized, drive
from the Main Motor (M1) is transmitted to the Pressure/Retraction Clutch.
Pressure Sequence
■ Drive from the Main Motor (M1) is transmitted to the drive gear.
■ Rotation of the drive gear is transmitted to the Pressure/Retraction Clutch.
■ When the Pressure/Retraction Solenoid /2nd Image Transfer (SL4) is energized, the
Pressure/Retraction Clutch rotates a half turn. This moves the Pressure Slider.
■ When the Pressure Slider is moved, ribs on the Pressure Slider push up the 2nd Transfer
Assembly.
4139to2079e0
Pressure/Retraction Clutch
Main Motor
2nd Transfer Roller
Pressure/Retraction Clutch
Transfer Belt
2nd Transfer Assy
Pressure/Retraction Solenoid
/
2nd Image Transfer

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