Xerox Phaser 7400 Service Manual

Error Messages and Codes 3-147
Control Panel Communications Failure
Applicable Status Code:
Code U61: A communications error with the Control Panel.
Initial Actions:
■ Cycle the printer's power.
■ If the problem persists follow the procedure below.
6
Check the SNS Harness for continuity.
1. Disconnect SNS and P/J150.
2. Check continuity between SNS
<=>J150.
Go to Step 7. Replace the SNS
Harness.
7
Check the Job Offset Home Position signal.
Does the voltage change at RSNS-10
when the sensor is actuated?
Go to Step 8. Replace the Rear
Sensor Board
(
page 8-151).
8
Check all pins on the RSNS Harness for
continuity.
Is the harness conductive?
Replace the Engine
Control Board
(
page 8-112).
Replace the RSNS
Harness.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ Engine Control Board, PL1.1.4
■ Control Panel Harness
■ Control Panel
■ Print Engine Map 3 (page 10-6)
■ Print Engine Control panel (page 10-43)
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1
Check the Control Panel connection.
Is the Control Panel Harness connected to
OPEPANE on the Engine Control Board?
Go to Step 2. Connect the
Control Panel
harness,
2
Check all pins on the Control Panel
Harness for continuity.
Disconnect the harness from the Engine
Control Board and Control Panel
connectors.
Is the harness conductive?
Replace the Engine
Control Board
(
page 8-112). If the
error persists,
replace the Control
Panel (
page 8-111).
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