Xerox Paser 7400 Service Manual page 14

Book 1 - Print Engine
Use Book 1 as your primary resource for understanding the operational characteristics
of the print engine. Book 1 describes printer specifications, theory and includes
information important to the diagnosis and repair of problems occurring in the print
engine and attached options. Book 1 also provides detailed print engine replacement
procedures, parts lists, and wiring diagrams.
Book 1 contains these sections:
Introductory, Safety and Regulatory Information: This section contains
important safety information, regulatory requirements, and information about this
manual.
Section 1 - General Information: This section contains an overview of the
printer's operation, configuration, specifications, and consumables.
Section 2 - Theory of Operation:
This section contains detailed functional
information on print engine components.
Section 3 - Error Codes and Messages:
This section describes the resident
diagnostics available to assist the troubleshooting process. These diagnostics include
error codes and messages and Service Usage Profile data stored in the printer. This
section provides complete troubleshooting information for the print engine and all
options.
Section 4 - General Troubleshooting: Troubleshooting discussions cover the
operation of Power On Self Test (POST), Service Diagnostics, In addition, this
section includes troubleshooting methods for situations where no error indicator is
available.
Section 5 - Print-Quality Troubleshooting: This section focuses on techniques
to correct image quality problems associated with printer output.
Section 6 - Adjustments and Calibrations: This section provides procedures
for the adjustment of print engine components.
Section 7 - Cleaning and Maintenance: This section provides periodic cleaning
procedures for the printer.
Section 8 - FRU Disassembly: This section contains removal procedures for
parts listed in the print engine's Field Replaceable Units (FRUs) Parts List. A
replacement procedure is included when necessary.
Section 9 - Parts Lists: This section contains exploded views of the print engine
FRUs as well as part numbers for items available as FRUs. Part numbers for printer
options and accessories are also included.
Section 10 - Wiring Diagrams:
This section contains the plug/jack locations and
the wiring diagrams for the print engine.
Appendix A - Menu Maps:
This section provides an illustration of the front-panel
menu as well as a listing of the Service Diagnostics tests available.
xii Phaser 7400 Color Printer Options Service Manual