Xerox Phaser 4620 User Manual

5/2011
3-18
Phaser 4600/4620 Printer Service Manual
IQ16
Revision - Xerox Internal Use Only
Image Quality
IQ16 Uneven Density
Image density varies across the page in either direction.
WARNING
Switch off the electricity to the machine. Disconnect the power cord from the customer
supply while performing tasks that do not need electricity. Electricity can cause death or
injury. Moving parts can cause injury.
WARNING
Do not touch the Fuser while it is hot.
Initial Actions
• Check media type settings are correct.
• Load new, dry paper that meets specifications.
• Check that the Toner Cartridge is properly installed and not empty.
• Ensure that the printer is level.
• Check to make sure the Laser path is clean and unobstructed.
• Remove the Drum Cartridge and check for contamination or obstructions.
Figure 1 Uneven density defect example
Procedure
Check the paper condition. Load new, dry recommended paper, and print a test print. The
image includes density defects.
YN
Perform SCP 6 Final Actions.
Remove the Drum Cartridge, clean the electrical contacts, then print a test print. The image
has density defects.
YN
Perform SCP 6 Final Actions.
Replace the Drum Cartridge and reprint the test print. The image has density defects.
YN
Perform SCP 6 Final Actions.
Remove the Transfer Roller and check for surface contamination or excessive wear. The
Transfer Roller is good.
YN
Replace the Transfer Roller, REP 9.1.
Print a test print. While the print is printing, turn off system power. Remove the Drum Cartridge
and check the image formed on the drum right before the Transfer Roller. The image is
poorly formed, faint and difficult to read.
YN
Check the image formed on the drum, right after the Transfer Roller. The image is com-
pletely transferred to the paper
YN
Replace the Transfer Roller, REP 9.1.
Continue with the procedure.
Remove the Fuser. Check for damage or debris on the rollers. The Fuser rollers are good.
YN
Clean or replace as necessary;
• Heat Roller PL 10.11
• Pressure Roller PL 10.11
• Fuser PL 10.10
Replace the following, in order, until the defective component is found.
• Transfer Roller, REP 9.1.
• Fuser, REP 10.10

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