PC 720, 740, 750, 770 Copiers SERVICE MANUAL This Service Manual contains basic facts and figures about the plain copier PC 720, 740, 750, 770 and is compiled to serve as a handy reference for servicing the machine in the field.
This Service Manual consists of the following chapters:
Chapter 1
General Description introduces the copier’s features and specifications, shows how to operate the copier.
Chapter 2
Copying process deals with the inner workings of the copier associated with the generation of copies.
Chapter 3
Operations and timing explains how the copier's electrical and mechanical systems are related to each other with respect to functions and timing of operations.
Chapter 4
Mechanical system - is discussed as to its operation, disassembly, reassembly and adjustment.
Chapter 5
Installation gives step-by-step instructions for installing the copier together with checks to make for each step
Chapter 6
Maintenance and Servicing contains tables of replacement parts and consumables.
Chapter 7
Externals/Auxiliary Mechanisms shows the copier’s external parts, and explains the principles used for the copier’s various control mechanisms in view of the functions of electrical and mechanical units and in relation to their timing of operation. It also shows how these units may be disassembled/assembled and adjusted.
Chapter 8
Installation introduces requirements for the site of installation, and shows how the copier may be installed using step-by-step instructions.
Chapter 9
Maintenance and Servicing provides tables of periodically replaced parts and consumables/durables and scheduled servicing charts.
Chapter 10
Troubleshooting provides tables of maintenance/inspection, standards/adjustments, and problem identification (image fault/malfunction).
Appendix contains a general timing chart and general circuit diagrams.
All service persons are expected to have a good understanding of the contents of this
Service Manual and all relevant Service Information bulletins and be able to identify and
isolate faults in the machine.
FORMAT: Scanned copy, PDF document!
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