Xerox Phaser 7400 Printer
42.99 Mbytes (45082721 Bytes)
01 augustus 2005
Elektronisch document, geen scan, zeer goed leesbaar.
11 mei 2020
Book 1: Print Engine
The Phaser 7400
Service Manual is the primary document used for
repairing, maintaining, and troubleshooting the Printer
. The manual is organized into
two books. This volume, Book 1, focuses on the print engine with the exception of
providing complete diagnostic and troubleshooting procedure for the Printer
its options. Book 2 focuses on option repair and includes an overview of option
theory, option Field Replaceable Unit (FRU) replacement procedures, parts lists, and
wiring diagrams. Use Book 2 after you’ve isolated a problem internal to a specific
option or when a problem arises at the engine/option interface.
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
procudures, parts lists, and wiring diagrams.
Book 1 contains these sections:
Introductory, Safety, and Regulatory Information: This section contains
important safety information and regulatory requirements.
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
section provides complete troubleshooting information for the print engine and all it’s
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
Section 5 - Print-Quality Troubleshooting: This section focuses on techniques
to correct image quality problems associated with Printer
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 - Service Parts Disassembly: This section contains removal
procedures for spare parts listed in the Parts List. A replacement procedure is included
Section 9 - Parts List: This section contains exploded views of the print engine
and option FRUs, as well as part numbers for orderable parts.
Section 10 - Wiring Diagrams: This section contains the plug/jack locations and
the wiring diagrams for the print engine.
Appendix A - Reference: This section provides an illustration of the printer’s
menu structure, a listing of Printer
status codes, and a list of Service Diagnostics tests.