The Phaser 8400/8500/8550/8560 Color Printer Service Manual is the
primary document used for repairing, maintaining, and troubleshooting the
printer. Use this manual as your primary resource for understanding the
operational characteristics of the printer and all available options. This manual
describes specifications, theory, and the diagnosis and repair of problems
occurring in the print engine and attached options. Also included are detailed
replacement procedures, parts lists, and wiring diagrams.
The Phaser 8400/8500/8550/8560 Color Printer Service Manual contains
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 provides detailed
troubleshooting procedures for error messages and codes generated by
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 - Service Parts Disassembly: This section contains removal
procedures for spare parts listed in the Parts List. A replacement procedure is
included when necessary.
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