Xerox Phaser 7400 Service Manual

3-72 Phaser 7400 Color Printer Service Manual
3
Test the Registration Motor.
Run the Service Diagnostics Registration
Motor A test.
Does the motor function correctly?
Go to Step 7. Replace the motor
(
page 8-39). If the
error persists, go to
Step
4.
4
Check for +24 V to the Registration Motor.
Is there +24 V across REGHOP-1 <=>
ground?
Replace the
REGHOP Harness.
If the error persists,
go to Step 5.
Replace the Motor
Driver Board
(
page 8-141).
5
Check Motor Driver Board POW24
connector for 24 V.
1. Disconnect POW24.
Is there +24 V across POW24-1 <=>
POW24-2?
Replace the Motor
Driver Board
(
page 8-141).
Go to Step 6.
6
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).
7
Test Registration Clutch #1.
Run the Service Diagnostics Registration
Clutch A test.
Does the clutch function correctly?
Go to Step 9. Go to Step 8.
8
Check for +24 V to Registration Clutch #1.
Is there +24 V across CLUTCH-1 <=>
ground?
Replace the clutch
(
page 8-85).
Replace the Front
Sensor Board
(
page 8-150).
9
Test for +5 V to the Tray 1 (MPT) Level
Sensor.
Disconnect MPTSNS.
Is there +5 V at MPTSNS-7 <=> ground?
Replace the
MPTSNS Harness.
Replace the Front
Sensor Board
(
page 8-150).
10
Check all pins of the FSNS harness for
continuity.
Disconnect the FSNS Harness.
Is the harness conductive?
Replace the Motor
Driver Board
(
page 8-141). If the
error persists, go to
Step 11.
Replace the
FNSNS Harness.
11
Check all pins of the DRV0 harness for
continuity.
Disconnect the DRV0 ribbon cable.
Is the cable conductive?
Replace the Engine
Control Board
(
page 8-112).
Replace the DRV0
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