Xerox Phaser 7400 Service Manual

3-22 Phaser 7400 Color Printer Service Manual
3
Check the TRYSNS1 harness continuity.
Is the harness conductive?
Replace the
sensor. If the error
persists, replace
the Feeder Board
(
page 8-53).
Replace the
harness.
4
Test the Tray 2 Feeder Motors.
Run the Service Diagnostics Tray 2 Motor
tests for the Feed and Registration Motors.
Do the motors function correctly?
Go to step 6. Go to Step 5.
5
Check the REGHOP harness continuity.
Is the harness conductive?
Replace the motor.
If the error persists,
Go to Step 8.
Replace the
harness.
6
Test the Registration Clutch #2
Run the Service Diagnostics Tray 2 Clutch
test.
Does the clutch function correctly?
Go to step 10. Go to step 7.
7
Check the CL1 harness continuity.
Is the harness conductive?
Replace the clutch
(
page 8-42). If the
error persists, go to
Step 8.
Replace the
harness.
8
Check for +24 V to the Motor Driver Board.
Disconnect POW24.
Is there +24 V across POW24-1 and 2?
Replace the Motor
Driver Board
(
page 8-141).
Go to Step 9.
9
Check for 24 V at the LVPS
1. Disconnect CN2 on the LVPS.
Is there +24 V across pins 1 and 2?
Replace the
POW24 Harness.
Replace the LVPS
(
page 8-121).
10
Check the Registration Assembly for gaps
between the rollers.
Is there a gap between the Registration
Rollers?
Replace the
Registration
Assembly
(
page 8-84).
Go to Step 11.
11
Check the DRV1 harness continuity.
Is the harness conductive?
Replace the Motor
Driver Board
(
page 8-141). If the
error persists,
replace the Engine
Control Board
(
page 8-112)
Replace the
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