PC 800, 900 Series Copiers SERVICE MANUAL This service manual has been prepared for the PC800/900 Series machines, providing basic information used for servicing the machines in the field so as to ensure their quality and performance.
This service manual consists of the following chapters:
Chapter 1
General Description introduces the machine's features, specifications, names of parts, and how originals are reproduced.
Chapter 2
Basic Operation explains how copies are made on a step-by-step basis.
Chapter 3
Exposure System discusses the principles of operation used for the machine's exposure system. It also explains the timing at which exposurerelated mechanisms are operated, and shows how they may be
disassembled/assembled and adjusted.
Chapter 4
Image Formation System discusses the principles of operation used for the machine's image formation system. It also explains the timing at which image formation-related mechanisms are operated, and shows how they may be disassembled/assembled and adjusted.
Chapter 5
Pick-Up/Feeding System discusses the principles of operation used for the machine's pickup/feeding system. It also explains the timing at which pickup/feeding-related mechanisms are operated, and shows how they may be disassembled/assembled and adjusted.
Chapter 6
Fixing System discusses the principles of operation used for the machine's fixing system. It also explains the timing at which fixing-related mechanisms are operated, and shows how they may be disassembled/assembled and adjusted.
Chapter 7
Externals/Auxiliary Mechanisms discusses the principles of operation used for the machine's externals/auxiliary mechanisms. It also explains the timing at which auxiliary mechanism-related mechanisms are operated, and shows how they may be disassembled/assembled and adjusted.
Chapter 8
ADF explains the principles of operation of the ADF in view of electrical and mechanical functions and in relation to their timing of operation. It also shows how the unit may be disassembled/assembled and adjusted.
Chapter 9
Installation introduces requirements for the site of installation, and shows how the machine may be installed using step-by-step instructions.
Chapter 10
Maintenance and Servicing provides tables of periodically replaced parts and consumables/durables and scheduled servicing charts.
Chapter 11
Troubleshooting provides tables of maintenance/inspection, standards/adjustments, and problem identification (image fault/malfunction).
Appendix contains a general timing chart and general circuit diagrams.
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