Xerox Phaser 6120 Service Manual

Theory of Operation
Phaser® 6120 Color Laser Printer Service Manual
9-26
Operations in 2-Sided Printing with Two Sheets of Paper Resident in the System
2
Operation 1
■ The first sheet of paper is taken up and fed in
from the main unit drawer and the main unit
starts the first print cycle to produce the print
image of the second page of the original.
Paper Exit
Roller
2
Operation 2
■ Immediately before the first 1-sided print
leaves the Paper Exit Roller, the direction of
rotation of the Paper Exit Roller is reversed
and the first 1-sided print is transported
toward and into the Duplex Unit.
■ At the same time, the second sheet of paper is
taken up and fed into the main unit.
4
2
Operation 3
■ The main unit carries out the first print cycle
for the second sheet of paper to produce the
print image of the fourth page of the original.
■ At the same time, the first 1-sided print is
transported through the Duplex Unit.
1 2
6
4
Operation 4
■ The main unit produces the print image of the
first page of the original on the first 1-sided
print that has been fed through the Duplex
Unit.
■ At the same time, the second sheet of paper is
subjected to a switchback sequence at the exit
section and fed into the Duplex Unit.
■ At the same time, the third sheet of paper is
taken up and fed into the main unit.

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