Xerox Phaser 7400 Service Manual

3-60 Phaser 7400 Color Printer Service Manual
Replace [C][M][Y][K] Imaging Unit
The Imaging Unit life counter indicates that the Imaging Unit has reached end of life.
Initial Actions:
■ Print a Supplies Usage page to check Imaging Unit life and install date.
■ Replace the affected Imaging Unit and cycle printer power.
■ If the problem persists, follow the procedure below.
4
Check continuity of the affected Antenna
Harness.
Disconnect CN2, CN3, CN4, or CN5 from
the CRUM Reader Board and CRUM
Antennas.
Is each harness conductive?
Go to Step 5. Replace damaged
wiring.
5
Check for +5V at RFID-2 on the Engine
Control Board.
Is there +5 V at RFID-2 <=> ground?
Go to Step 6. Replace the Engine
Control Board
(
page 8-112).
6
Check for +5V at POWER-2 on the Engine
Control Board.
Is there +5 V at POWER-2 <=> ground?
Replace the
Engine Control
Board
(
page 8-112).
Replace the LVPS
(
page 8-121).
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ [C][M][Y][K] Imaging Unit, PL1.1.23 ■ Print Engine Map 3 (page 10-6)
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1
Check the count value stored in NVRAM.
Run the Service Diagnostics CRU Counter
Read utility.
Has the counter been reset?
Replace the Engine
Control Board
(
page 8-112).
Go to Step 2.
2
Reset the Imaging Unit count.
1. Run the Service Diagnostics Reset I/U
Counts utility.
2. Reset the count for the affected I/U.
Did the count value change?
Replace the Engine
Control Board
(
page 8-112).
Replace the
Engine Control
Board NVRAM.
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