Xerox Phaser 4500 Service Manual

General Troubleshooting 4-37
Image Processor Isolation
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Image Processor Board
■ DC-DC Converter
■ DC-DC Converter Harness
■ LVPS
■ LVPS Harness
■ “Image Processor Board, DC-DC Converter, Front
Panel” on page 10-26
■ “Print Engine General Wiring Diagram” on
page 10-17
■ “Print Engine Plug/Jack Locator” on page 10-3
Troubleshooting Procedure
Step Actions and Questions Yes No
1
NOTE If no options are installed (hard disk, etc.), go on
to step 2.
1. Switch the printer power OFF.
2. Disconnect all cables connected to the rear of the
Image Processor Board.
3. Remove the I/P Shield Window (page 8-87).
4. Remove all options (hard disk, etc.) from the Image
Processor Board.
5. Switch the printer power ON.
Does the printer boot up correctly and is Ready
displayed on the Front Panel?
Go to step 3. Go to step 2.
2
1. Switch the printer power OFF.
2. Remove then re-install the ribbon cable between
J800 on the Image Processor Board and P28 on the
HVPS/Engine Logic Board.
3. Switch the printer power ON.
Does the printer boot up correctly and is Ready to
Print displayed on the Front Panel?
Problem
solved.
Go to “Image
Processor
Board” on
page 4-38.
3
1. Switch the printer power OFF.
2. Re-install one of the removed options or cables.
3. Switch the printer power ON.
Does the printer boot up correctly and is Ready to
Print displayed on the Front Panel?
Repeat the
last step with
the next
option or
cable until
the problem
is found.
Replace the
option or
cable just
installed.

Xerox Phaser 4500 Specifications

General

Brand	Xerox
Model	Phaser 4500
Category	Printer
Language	English