Phaser 3140/3155/3160 Printer Service Manual xixManual OrganizationThe Phaser 3140/3155/3160 Printer Service Manual is the primary document usedfor repairing, maintaining, and troubleshooting the printer. Use this manual asyour primary resource for understanding the operational characteristics of theprinter and all available options. This manual describes specifications, theory, andthe diagnosis and repair of problems occurring in the print engine and attachedoptions. Also included are detailed replacement procedures, parts lists, and wiringdiagrams.The Phaser 3140/3155/3160 Printer Service Manual contains these chapters:Introductory, Safety, and Regulatory Information: This section containsimportant safety information and regulatory requirements.Chapter 1 - General Information: This section contains an overview of theprinter’s operation, configuration, specifications, and consumables.Chapter 2 - Theory of Operation: This section contains detailed functionalinformation on the print engine components.Chapter 3 - Error Codes and Messages: This section provides detailedtroubleshooting procedures for error messages indicated by the printer.Chapter 4 - General Troubleshooting: This section includes troubleshootingmethods for situations where error indicator is not available.Chapter 5 - Print-Quality Troubleshooting: This section focuses on techniques tocorrect image quality problems associated with the printer output.Chapter 6 - Adjustments and Calibrations: This section provides procedures forthe adjustment of printer components.Chapter 7 - Cleaning and Maintenance: This section provides periodic cleaningprocedures for the printer.Chapter 8 - Service Parts Disassembly: This section contains removal proceduresfor spare parts listed in the Parts List. A replacement procedure is included whennecessary.Chapter 9 - Parts List: This section contains exploded views of the print engineand optional Field Replaceable Units (FRUs), as well as part numbers for orderableparts.Chapter 10 - Plug/Jack and Wiring Diagrams: This section contains the plug/jacklocations and the wiring diagrams for the printer.Appendix A - Reference: This section provides a list of acronyms andabbreviations.