Xerox Phaser 7400 Service Manual

General Troubleshooting 4-15
5
Test the affected Paper Size Switch.
1. Disconnect P/J471.
2. Run the Service Diagnostics Paper Size
Switch Test.
Does the switches function normally? Use the
Paper Size Switch State table to verify proper
operation.
Go to Step 6. Replace the
Paper Size
Switch
(
page 8-139).
6
Check the Paper Size Switch signals.
1. Disconnet the Motor Driver Board PSIZE
connector.
2. Check voltages at these pins:
PSIZE-1 = +5 V
PSIZE-2 = +5 V
PSIZE-4 = +5 V
PSIZE-5 = +5 V
Is +5 V available at each PSIZE pin?
Replace the
Paper Size
Switch
(
page 8-139)
Replace the
Motor Driver
Board
(
page 8-141).
Universal Tray Paper Size Switch States
SW1 SW2 SW3 SW4 Media Size
0 0 0 0 No tray installed
1 1 1 1 A/Letter (LEF)
1 0 1 0 A/Letter (SEF)
1 0 0 1 A3
0 0 1 1 A3-Nobi
1 1 1 0 A4 (LEF)
0 0 1 0 A4 (SEF)
0 1 1 0 A5
0 1 1 1 A6
0 0 0 1 B4
1 1 0 0 B5 (LEF)
1 0 0 0 B5 (SEF)
1 0 1 1 B/Tabloid
1 1 0 1 Executive
0 1 0 0 Ledger 13 in.
0 1 0 1 Legal 14 in.
Troubleshooting Procedure Table

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