Xerox Phaser 7400 Service Manual

3-110 Phaser 7400 Color Printer Service Manual
4
Check the CTG0 harness continuity.
Disconnect CTG1 from the Imaging Unit
Sensor Board and CTG0 from the Engine
Control Board.
Is the harness conductive?
Replace the Engine
Control Board
(
page 8-112).
Replace the
harness.
5
Test the indicated Imaging Unit Motor.
1. Remove the affected Imaging Unit.
2. Close the Interlock Switches.
3. Run the Service Diagnostics Imaging
Unit Motor test for the affected motor.
Does the motor function correctly?
Go to Step 6. Replace the motor
(
page 8-105). If
the error persists,
go to Step 6.
6
Check the Lift Uplink and associated
gears. See
"Imaging Unit Drive Motors" on
page 2-39 for a description of Lift Uplink
operation.
1. Access the Cyan Imaging Unit Motor.
2. Rotate the Cyan Motor manually in both
directions.
Do the gears and links function properly?
Replace the Cyan
Imaging Unit Motor
(
page 8-105). If the
error persists, go to
Step 7.
Replace the Lift
Uplink
(
page 8-108).
7
Check for +24 V at the Motor Driver Board
POW24 connector.
Is there +24 V at POW24-1
Replace the Motor
Driver Board
(
page 8-141).
Replace the LVPS
(
page 8-121) and/
or POW24
harness.
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