Xerox Phaser 6120 Service Manual

Print Engine Theory of Operation
Phaser® 6120 Color Laser Printer Service Manual
7-23
6. Similarly, the Toner Cartridge Rack is rotated and development of C is carried out.
7. Similarly, the Toner Cartridge Rack is rotated and development of K is carried out.
8. When the development of K is completed, the Toner Cartridge Rack is rotated and brought
to a stop at the standby position.
Toner Cartridge Rack Stop Position Detection
■ The Toner Cartridge Rack stop position for each color of toner is detected by the Rack
Motor (M2) and the Rack Positioning Sensor (PC3).
■ The Toner Cartridge Rack is provided with slits, each for a specific color of toner. When
the rack rotates, the Rack Positioning Sensor (PC3) is blocked and unblocked.
A specific stop position is detected when the Rack Positioning Sensor (PC3) is blocked
and unblocked.
.
Toner Cartridge Rack Standby Position
■ The standby position is 45 ° before the developing position of the K Toner Cartridge. The
Y Toner Cartridge is therefore provided with a slit for detecting the K developing position.
■ When the Toner Cartridge Rack is rotated, the Rack Positioning Sensor (PC3) moves past
the slit for detecting the K developing position. This allows the machine to determine that
the current development is for K. Through pulse control of the Rack Motor, the machine
then successfully brings the Toner Cartridge Rack to its standby position
.
4139to2072e0
Rack Positioning Sensor
Slits
4139to1583c0
4139to2073e0
YMCK
Y
M
C
K
Detection of K
Developing
Position
Detection of Y
Developing
Position
Detection of M
Developing
Position
Detection of C
Developing
Position
Standby Position Detecting Position
Rack Positioning
Sensor
Direction of Rotation of
the Toner Cartridge Rack
Toner Cartridge
Rack Standby
Position

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