Xerox Phaser 7400 Service Manual

4-18 Phaser 7400 Color Printer Service Manual
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Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ SDRAM Memory
■ Image Processor Board
■ Print Engine Map 4 (page 10-7)
Troubleshooting Procedure Table
Step Action and Questions Yes No
1
Power on the printer.
Is RAM ERROR displayed on the Control
Panel?
Go to Step 5. Go to Step 2.
2
Is 15: RAM DIMM displayed on the Control
Panel?
Go to Step 5. Go to Step 3.
3
Is 16: Min RAM Limit displayed on the
Control Panel?
Go to Step 5. Go to Step 4.
4
Print a Startup Page and review the
contents.
Does the Startup Page identify a failed
memory DIMM?
Replace the DIMM
and go to Step 9.
Go to Step 5.
5
Are there two DIMMs installed in the
printer?
Go to Step 6. Go to Step 8.
6
Determine Memory condition.
1. Power off the printer and remove one of
the DIMMs.
2. Power on the printer.
Is a memory fault message displayed?
Go to Step 8. Go to Step 7.
7
1. Power off the printer and remove the
first DIMM.
2. Install the second DIMM and power on
the printer.
Is a memory fault message displayed?
Go to Step 8. Go to Step 9.
8
1. Power off the printer and move the
suspected defective DIMM to the other
memory socket.
2. Power on the printer.
Does the DIMM fail in the new location?
Replace the DIMM
and go to Step 9.
Replace the I/P
board
(page 8-113).
9
Install all of the DIMMs and power on the
printer.
Is a memory fault message displayed?
Replace the I/P
board
(page 8-113).
Complete

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