Xerox Phaser 7760. Service Manual

   The Phaser 7760 Color Laser Printer Service Documentation is the primary document used for diagnosing, repairing, maintaining, and troubleshooting the printer. It is the controlling publication for a service call. Information on its use is found in the Introduction of the Service Documentation.

Contents:
Introduction and General Information.
   This  section  contains  documentation  organization,  symbology  and  nomenclature,  translated warnings, safety symbols, regulatory specifications, and general information.
1. Service Call Procedures.
   This section contains procedures that determine what actions are to be taken during a service call on the machine and in what sequence they are to be completed. This is the entry level for all service calls. This section covers the General Startup, PostScript, and Power Supply Operations of the printer to aid in troubleshooting not associated with an error code or Front Panel error message.
2. Status Indicator RAPs.
   This  section  contains  the  diagnostic  aids  for  troubleshooting  the  Fault  Code  and  non-Fault Code related faults (with the exception of image quality problems).
3. Image Quality.
   This section contains the diagnostic aids for troubleshooting any image quality problems, as well as image quality specifications and image defect samples.
4. Repairs / Adjustments.
   This section contains all the Repairs and Adjustments procedures.
      Repairs:
   Repairs include procedures for removal and replacement of parts which have the following special conditions:

When there is a personnel or machine safety issue.
When removal or replacement cannot be determined from the exploded view of the Parts List.
When there is a cleaning or a lubricating activity associated with the procedure.
When the part requires an adjustment after replacement.
When a special tool is required for removal or replacement.

   Use the repair procedures for the correct order of removal and replacement, for warnings, cautions, and notes.
      Adjustments:
   Adjustments include procedures for adjusting the parts that must be within specification for the correct operation of the system.
5. Parts Lists.
   This section contains the Printer and Finisher Parts Lists.
6. General Procedures/Information.
   This section contains General Procedures and Diagnostic Programs.
7. Wiring Data.
   This section contains drawings, lists of Plug/Jack locations, and diagrams of the power distribution wire networks in the machine. Individual wire networks are shown in the Circuit Diagrams contained in Section 2. This section also contains the Block Schematic Diagrams.
8. Theory of Operation
   This section contains detailed functional information on the print engine components.

 

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