Xerox Phaser 4620 User Manual

5/2011
8-10
Phaser 4600/4620 Printer Service Manual
Xerographics
Revision - Xerox Internal Use Only
Principles of Operation
CAUTION
Never remove the cover from a Laser Assembly for any reason - contamination may result.
The Laser Unit consists of four components: the laser diode (LD) Assembly, the scanner
assembly, lenses and mirrors, and the start of scan (SOS) board.
Scanner Motor control is performed according to the mode of operation as shown below.
Fuser
The Fuser, using a combination of heat and pressure, bonds the toner to the media. As a CRU,
the Fuser is replaced as a unit. However, spares are available for the Heat Lamp, Heat and
Pressure Rollers, and Fuser Drive Gear.
Figure 7 Fuser
The Fuser receives its drive from the Fuser Drive Assembly. After the toner image is trans-
ferred to the media, the media passes through the Fuser. The Pressure Roller is pressed
against the Heat Roller to melt the toner and bond the image to the media.
Table 2 Laser Assembly Components
Component Function
Laser Diode Assembly Produces two laser beams that are turned on and off according to
the print data signal.
Scanner Assembly Consists of a faceted polygonal mirror mounted on the shaft of the
scanner motor that reflects the beams to the drum surface through
lenses and mirrors, to scan the beams across the drum.
Start of Scan Board When the laser beams strike the sensor on the SOS board, the
signal generated indicates the initial position of the scan. The ini-
tial position where a scan is started on each line is detected.
Table 3 Scanner Motor Operational Modes
Operational Mode Laser Power On/Off
Standby Mode Always Off
Print Mode Turns On upon receiving the signal from the controller, and turns
Off after a preset time has passed from the end of printing. Also
turns Off if a print command is not received within 30 seconds
from the reception of the signal.
Sleep Mode Always Off

Xerox Phaser 4620 Specifications

General

Operating temperature (T-T)	50 - 90 °F
Operating relative humidity (H-H)	20 - 80 %
Color	No
I/O ports	10/100/1000 BaseT Ethernet, USB 2.0
Depth (min)	541 mm
Height (min)	420 mm
Minimum width	476 mm
Minimum weight	34.6 kg
Package length	698.49 mm
Print technology	Laser printing
Mac compatibility	Yes
Security features	Audit log, HTTPS, Image overwrite security, IP filtering, IPSec, Network authentication, SNMPv3, 802.1x
Storage drive type	Optional
Print memory (standard)	256 MB
Power consumption (active)	900 W
Minimum storage drive space	160 GB
Power consumption (standby)	93 W
Power consumption (PowerSave)	10 W
Storage media	HDD
Maximum internal memory	768 MB
Sound power level (standby)	39 dB
PCL fonts	93
Certification	Class 1 Laser Product, CE Marked, EMC Directive 89/336/EEC, EN 55022 Class B, EN 55024, FCC Part 15, Class B, Low Voltage Directive 73/23/EEC, RoHS Directive 2002/95/EC
Country of origin	China
Maximum duty cycle	275000 pages per month
Number of PostScript fonts	136
Number of print cartridges	1
Total input capacity	550 sheets
Total output capacity	500 sheets
Maximum input capacity	2000 sheets
Multi-Purpose tray input capacity	100 sheets
Maximum resolution	1200 x 1200 DPI
Time to first page (black, normal)	7.8 s
Print speed (black, normal quality, A4/US Letter)	65 ppm
Display	LCD
Package weight	40200 g
Maximum print size	216 x 356 mm
Paper tray media types	Bond paper, Card stock, Labels, Pre-Printed, Recycled paper, Transparencies
ISO A-series sizes (A0...A9)	A4
Standard interfaces	USB 2.0
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Export Control Classification Number (ECCN)	EAR99

Weight and Dimensions

Width	627.37 mm
Height	685.79 mm
Dimensions (WxDxH)	476 x 420 x 541 mm