Phaser 7400 Color Printer Options Service Manual xiManual OrganizationThe Xerox Phaser 7400 Color Printer Service Manual is the primary document usedfor repairing, maintaining, and troubleshooting the printer. The manual is organizedinto two books. This volume, Book 2, Phaser 7400 Options includes an overview ofoption theory, option FRU replacement procedures, parts lists, and wiring diagrams.Use this volume after you’ve isolated a problem internal to a specific option or when aproblem arises at the engine/option interface. Use Book 1 for diagnostic andtroubleshooting procedures for the printer and all its options.Use Book 2 as a reference when servicing printer options. Book 2 includesinformation important for the repair or replacement of option components. Use thetroubleshooting procedures in Book 1 to diagnose and isolated the problem.Book 2 contains these sections:Introductory, Safety, and Regulatory Information: This section containsimportant safety information, regulatory requirements, and information about thismanual.Section 1 - General Information: This section contains an overview of theoptions available, configuration, specifications, and consumables.Section 2 - Theory of Operation: This section contains functional informationon each option.Section 3 - General Troubleshooting: This section provides troubleshootingmethods for situations where no error indicator is available.Section 4 - Adjustments and Calibrations: This section provides proceduresfor the adjustment of print engine components.Section 5 - Service Parts Disassembly: This section contains removalprocedures for parts listed in the option’s Field Replaceable Units (FRUs) Parts List.A replacement procedure is included when necessary.Section 6 - Parts Lists: This section contains exploded views of the option FRUsas well as FRU part numbers.Section 7 - Wiring Diagrams: This section contains option plug/jack locationsand wiring diagrams.
