Xerox Phaser 7400 Service Manual

4-10 Phaser 7400 Color Printer Service Manual
Test Prints
Test Prints can isolate printing problems to the Engine Control or Image Processor
Board by eliminating image data transfer between the two. Test Prints does not
exercise any Image Processor Board circuitry. Test Prints gets its image data from
ROM. This allows the examination of Engine Control Board function in isolation.
Some other key features of Test Prints:
■ Is the only diagnostic utility to exercise the entire print cycle.
■ Isolated from the operating system (PostScript). Runs from firmware.
■ Isolates the Image Processor Board from Engine Control Board.
■ Helps to isolate events that cause print artifacts or prevents printing.
Control Panel Troubleshooting
No Control Panel Display after Power Is Turned On
Initial Actions:
■ Remove and reseat the Image Processor Board (page 8-113).
■ Print an engine test print.
■ Replace the Image Processor Board (page 8-113) (if Step 2 passes).
■ See “DC Power Supply Troubleshooting” on (page 4-17).
Troubleshooting Procedure Table
Step Action and Questions Yes No
1
Check for +5 V at the OPEPWR connector of
the Engine Control Board.
Is there +5 V at OPEPWR-5 <=> ground?
Go to Step 2. Replace the
Engine Control
Board
(
page 112).
2
Check the Control Panel connection.
Is the Control Panel harness connected?
Replace the
Control Panel
harness. If the
error persists,
replace the
Control Panel
(
page 8-111).
Connect the
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