Xerox Phaser 4400 Laser Printer Service Manual

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Xerox Phaser 4400 Laser Printer
Service Manual

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The Xerox Phaser 4400 Laser Printer Service Manual is the primary document used for repairing and
maintaining the troubleshooting.

CONTENTS
General Information 1-1
Section Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Phaser 4400 Laser Printer Overview . . . . . . . . . . . . . . . . . . . . 1-2
Parts of the
Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Machine Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Printer Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Error Messages and Codes 2-1
Section Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Service Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Printer Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Image Processor POST Error Codes . . . . . . . . . . . . . . . . . . . 2-58
Troubleshooting 3-1
Section Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Troubleshooting Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Image-Quality Checkout Procedures . . . . . . . . . . . . . . . . . . . 3-41
Image-Quality Troubleshooting Procedures . . . . . . . . . . . . . . 3-53
Tests Prints, Adjustments, and NVRAM Reset 4-1
Section Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Service Test Prints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Resetting NVRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
xiv Phaser 4400 Laser Printer Service Manual
Cleaning and Maintenance 5-1
Service Preventive Maintenance Procedure . . . . . . . . . . . . . . . 5-1
FRU Disassembly 6-1
List of Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Covers and Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Tray 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Paper Feed (Tray 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Paper Feed (MPT). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-44
Paper Transportation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-57
Exit Assembly and Fuser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-65
Xerographics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-79
Main Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-84
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-87
Stacker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-101
Optional Paper Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-120
Duplex Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-141
Envelope Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-157
Parts Lists 7-1
Parts List Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Using the Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Theory of Operation 8-1
Section Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Print Process Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3 Print Process Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
The Paper Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Drive Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14
Engine Logic Board and Front Panel Functions . . . . . . . . . . . 8-22
Image Processor Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-22
Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23
Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-24
Phaser 4400 Laser Printer Service Manual xv
Laser Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25
Fuser Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26
Erase Cycle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28
Fan Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28
Duplex Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-29
Envelope Feeder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-33
Stacker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-37
Option Feeder Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42
Wiring Data 9-1
Section Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
Base Engine Wiring Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
550-Sheet Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-22
Duplex Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-26
Stacker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-31
Envelope Feeder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-37
xvi Phaser 4400 Laser Printer Service Manual
Phaser 4400 Laser Printer Service Manual 1-1
General Information
The Xerox Phaser. 4400 Laser Printer Service Manual is the primary document used for repairing, maintaining and troubleshooting.
To ensure complete understanding of the product, participation in Xerox Phaser 4400 Service Training is recommended.
Section Contents
Phaser 4400 Laser Printer
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Printer Memory Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Monitoring Consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Repackaging Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Parts of the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Base Configuration Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Internal Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Printer Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Front Panel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Image Processor Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Machine Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
Menu Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13
Printer Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Media and Tray Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Functional Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

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We are in business since 2002 and do our best to give our customers perfect service!

Prapan Chulapinyo

2016-11-10 15:46:54

It work great! But it like I\'ve force to buy because I\'ve no option. Price should be lower.

Terry Brooks

2023-02-17 17:37:44

The WIC Utility worked like a charm for our Epson XP-830! Nice to not have to replace the entire printer. It's running again with no problem. Thanks so much for offering this service. WELL WORTH THE $10! Nice to find lil treasures like this that works in favor of the consumer!

Leon Potgieter

2004-06-18 10:42:40

Paid for Epson Stylus Color 900 service program and afterwards tried to download program from link. Link would only download a HTML file, and not an executable. Left a message from 2manuals to assist me. This is too damn difficult. Why can the link not just download the executable? ============= Just checked - it works fine. Maybe there were server problem at that moment. You have been sent direct link. John.

Heri Putra Kelana

2006-05-12 05:06:13

please confirmation canon ip1200,1600,2200 printer service tools.

Russell Thielemann

2016-06-29 09:28:59

An excellent service that works. Don't be fooled by the printer manufacturers that you are trapped into buying their over priced cartridges because you thought you were doing the right thing by upgrading the firmware. The only reason for their upgrade was to stop you from using your own cheaper 3rd party ink cartridges. If you accidentally did do the upgrade as they recommended don't worry as you can undo that costly mistake with the help of "wicreset". It really works. Also did you know that 3rd party cartridges actually contain around 25% more ink than oem cartridges?

vera bevan

2009-10-22 22:31:20

This is what I need!! thanks!!...

Bob Heinrichs

2011-02-01 06:09:58

Thank-you for helping with resetting waste ink counter. Great service Had printer running in 2 minutes. Thanks again for saving me money and time. Bob

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Xerox Phaser 4400 Laser Printer
Service Manual