Xerox Phaser 7400 Service Manual

3-168 Phaser 7400 Color Printer Service Manual
Failure in the Fuser Motor
The Fuser Motor has stopped rotating.
Applicable Status Code:
Code 928: The Fuser Motor has failed.
Initial Actions:
■ Cycle the printer's power.
■ If the problem persists follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ Fuser Motor, PL2.1.9
■ Motor Driver Board, PL2.1.10
■ Engine Control Board, PL1.1.4
■ Print Engine Map 5 (page 10-8)
■ Print Engine Motor Driver Board (2/6) (page 10-32)
■ Print Engine Motor Driver Board (6/6) (page 10-36)
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1
Test the Fuser Motor.
1. Close the Interlock Switches for test.
2. Run the Service Diagnostics Fuser
Motor test.
Does the motor operate?
Complete. Replace the motor
(
page 8-106). If the
error persists, go
to Step
2.
2
Check for +24 V to the Fuser Motor.
Is the +24 V across DCHEAT- 3 <=>
ground?
Go to Step 5. Go to Step 3.
3
Check Motor Driver Board POW24
connector for 24 V.
1. Disconnect POW24.
Is the +24 V across POW24 pins 1 and 2?
Replace the Motor
Driver Board
(
page 8-141).
Go to Step 4.
4
Check for 24 V at the LVPS
1. Disconnect CN2 on the LVPS.
Is the +24 V across pins 1 and 2?
Replace the
POW24 Harness.
Replace the LVPS
(
page 8-121).
5
Check all pins of the DRV1 harness for
continuity.
Disconnect the DRV1 ribbon cable.
Is the cable conductive?
Replace the Engine
Control Board
(
page 8-112).
Replace the DRV1
Harness.

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