Name: Xerox Phaser 7400
Brand: Xerox
Rating: 5 (1 reviews)

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General Troubleshooting 4-13

Printer Continually Displays Warming Up...

The most likely cause is that the Image Processor Board has not successfully loaded

its NVRAM contents (instructions) into RAM. All print engine operation halts, and

will only become ready when the Image Processor Board successfully boots.

1. Check for media or debris in the paper path.

2. Power cycle the printer.

3. Verifying Image Processor Board failure:

a. Power-off the printer, and remove the Image Processor Board.

b. Power-on the printer. Wait at least 5 minutes while the print engine

initializes. If there was a problem with the Image Processor Board, it will

now not affect the Engine Control Board.

c. If characters appear on the Control Panel display, the Engine Control Board

is functional and the problem is most likely with the Image Processor Board.

d. Turn off the printer and reseat the Image Processor Board and turn on the

printer to determine if seating was the problem.

e. Perform a PostScript NVRAM reset, see "Postscript NVRAM Reset" on

page 6-9.

f. Turn off the printer and systematically remove individual optional

components from the Image Processor Board to isolate a possible problem

component.

g. Replace the Image Processor Board.

Printer Displays Install or Reseat Imaging Unit

1. See “Install or Reseat [C][M][Y][K] Imaging Unit” on page 3-65.

Printer Displays Reseat Contoller Board

1. Turn Off printer power.

2. Remove the Image Processor Board (page 8-113).

3. Check the condition of the CUIF connector.

4. Install the Image Processor Board, and then reboot the printer. If the error

persists, turn Off printer power and verify voltages supplied from the LVPS. See

"DC Power Supply Troubleshooting" on page 4-17.

5. Reboot the printer. If the error persists, turn Off printer power and replace the

Image Processor Board.

6. Reboot the printer. If the error persists, turn Off printer power and replace the

Engine Control Board (page 8-112).

Note

A failure of the NVRAM chip on the Engine Control Board will produce this

message. Reseat the NVRAM component in the socket and retest.

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