Xerox DOCUPRINT N4525 Service Quick Reference Manual page 11

Section 3 - Troubleshooting
This section specifically discusses the most common problems (using additional
Repair Analysis Procedures) encountered in the following areas:

Printer Performance Problems

Image Quality Problems

Electrical Interference Problems.
Section 4 - Diagnostics, Test Prints, Service Tests & NVRAM Adjustments
This section provides a wide variety of test prints to assist in evaluating and/or
troubleshooting the printer and options. Also provided are many accessed
diagnostic tests and adjustments to assist in analyzing, adjusting registration and
fine tuning the printer and options performance.
Section 5 - Cleaning and Maintenance
A quick guide to routine cleaning and maintenance for the printer and options.
Section 6 - Key FRU Removal and Replacement Procedures
This large section provides many procedures and illustrations for removing and
replacing key Field Replaceable Units (FRUs) within the print engine. Option
specific Removal and Replacement Procedures (RRPs) appear in the Volume 2
manual supplement for each option. For more detailed procedures, please refer
to the CD version of the service manual.
Section 7 - FRU List
This is the parts list for the Field Replaceable Units. This section contains
exploded views of the FRUs as well as part numbers for items available as FRUs.
Section 8 - Plug/Jack Connector Locations
This section contains a connector table and several locator illustrations to aid in
identifying all electrical connections within the printer and options.
Section 9 - Wiring Diagram
The Master Wiring Diagram is contained in this section. Please refer to the CD
version of the service manual for additional diagrams.