This Service Manual contains basic data and figures on the reader unit of the color
copier needed for servicing in the field.
The machine consists of the following system units:
1. Reader unit
2. Editor
3. Original holder
For the printer unit, duplexing unit, R cassette, and PS/PCL board, refer to their
respective Service Manuals. This manual covers the reader unit, editor, and original hold-
er, and consists of the following chapters:
Chapter 1 General Description introduces the machine's features and specifications
and shows how to operate the machine.
Chapter 2 Basic Operation provides outlines of the machine's various mechanical
workings.
Chapter 3 Exposure System discusses the principles of operation used for the
machine's lens drive unit and scanner drive unit. It also explains the timing at which these
drive units are operated, and shows how they may be disassembled/assembled and
adjusted.
Chapter 4 Image Processing System discusses the CCD mechanism and the princi-
ples of how analog/digital images are processed. It also explains the timing at which the
various units may be disassembled/assembled and adjusted.
Chapter 5 Externals/Auxiliary Mechanisms shows the machine's external parts, and
explains the principles used for the machine'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 6 Installation introduces requirements for the site of installation, and shows
how the machine may be installed using step-by-step instructions.
Chapter 7 Maintenance and Servicing provides tables of periodically replaced parts
and consumables/durables and scheduled servicing charts.
Chapter 8 Troubleshooting provides tables of maintenance/inspection, standards/adjust-
ments, and problem identification (image fault/malfunction).
Appendix contains a general timing chart and general circuit diagrams.
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COPYRIGHT © 1999 CANON INC.
CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
INTRODUCTION