Xerox Phaser 7400 Service Manual

5-24 Phaser 7400 Color Printer Service Manual
3
Check the Imaging Unit drum for
toner contamination.
Remove the Imaging Unit of the
problem color.
Is there a film of toner across the
surface of the drum?
Replace the Imaging
Unit.
Go to Step 4.
4
Verify the printer is operating within
it’s environmental specifications.
Low humidity increases the degree of
background toner.
Go to Step 5. Advise the customer of
the environmental
specifications.
5
Check the Transfer Unit belt.
Is the background contamination a
mixture of colors and excessive?
Is the Transfer Unit belt contaminated
with toner.
Replace the Transfer
Unit.
Go to Step 6.
6
Is the customer printing on high-gloss
media?
Advise the customer
of the limitation of
this printer.
Go to Step 7.
7
Check minimum clearances around
the printer especially sides and back
as it can cause heat buildup.
Are clearances within specifications?
Go to Step 8. Advise customer.
8
Test the Fans.
Heat build-up under the Imaging
Units can cause toner to stain the
background.
Are the fans operating correctly?
Go to Step 9. Replace the defective
fan.
9
Check that the Imaging Unit contacts
are in working condition and clean.
Clean the or replace
the drum contacts.
Go to Step 10.
10
Remove the Imaging Units and the
Transfer Unit and check for toner
contamination on the high voltage
contacts.
Clean the contacts. Replace in the following
order:
Transfer Unit
HVPS (page 8-119).
Troubleshooting Procedure Table (Continued)
Step Actions and Questions Yes No

Xerox Phaser 7400 Specifications

General

Color	Yes
Print technology	Laser
Maximum resolution	600 x 1200 DPI
Time to first page (black, normal)	12 s
Print speed (black, normal quality, A4/US Letter)	40 ppm
Print speed (color, normal quality, A4/US Letter)	36 ppm
Storage media	HDD
Internal memory	512 MB
Processor model	PowerPC
Maximum internal memory	1 MB
Internal storage capacity	20 GB
Total input capacity	800 sheets
Maximum input capacity	3000 sheets
Paper tray 2 input capacity	350 sheets
Auto document feeder (ADF) input capacity	1650 sheets
Maximum print size	297 x 420 mm
Paper tray media types	Envelopes, Labels, Transparencies
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size), Letter (media size), Statement (140 x 216mm), Legal (media size)
Maximum ISO A-series paper size	A3
Power requirements	100-240V, 50/60Hz
Networking features	Fast Ethernet
Supported media weight(s)	270 g/m²
Maximum operating temperature range (T-T)	10 - 32 °C
Certification	FCC p.15 A, CE
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	-4 - 140 °F
Storage relative humidity (H-H)	10 - 95 %
Operating relative humidity (H-H)	20 - 80 %
Maximum duty cycle	150000 pages per month

Weight and Dimensions

Dimensions (WxDxH)	1438 x 623 x 975 mm