This Service Manual contains the bsic facts and figures about the plain paper copierNP6218, and is compiled to serve as a handy reference for servicing the machine in thefield.The NP6218 is designed to enable fully automated copying work and may beconfigured with the following accessories:1. Cassette Feeding Module-B2*2. Cassette Feeding Module-A2*3. Control Card IV N4. ADF-E15. Staple Sorter B2/D16. MS-B17. Remote Diagnostic Device IIThis manual is limited to the descriptions of the NP6218, Cassette Feeding Module-B2/Cassette Feeding Module-A2.* May not be available in some areas but discussed in this manual.This Service Manual covers the copier only, and consists of the following chapters:Chapter 1General Description introduces the copier's features and specifications,shows how to operate the copier, and explains how copies are made.Chapter 2Basic Operation provides outlines of the copier's various mechanicalworkings.Chapter 3Exposure System discusses the principles of operation used for thecopier's lens drive unit and scanner drive unit. It also explains the timingat which these drive units are operated, and shows how they may bedisassembled/assembled and adjusted.Chapter 4Image Formation System discusses the principles of how images areformed. It also explains the timing at which the various units involved inimage formation are operated, and shows how they may bedisassembled/assembled and adjusted.Chapter 5Pick-Up/Feeding System explains the principles used from when copypaper is picked up to when a copy is delivered in view of the functions ofelectrical and mechanical units and in relation to their timing of operation.It also shows how these units may be disassembled/assembled andadjusted.Chapter 6Fixing System explains the principles used to fuse toner images totransfer media in view of the functions of electrical and mechanical unitsand in relation to their timing of operation. It also shows how these unitsmay be disassembled/assembled and adjusted.Chapter 7Externals/Auxiliary Mechanisms shows the copier's external parts, andexplains the principles used for the copier's various control mechanismsin view of the functions of electrical and mechanical units and in relationto their timing of operation. It also shows how these units may bedisassembled/assembled and adjusted.Chapter 8Installation introduces requirements for the site of installation, and showshow the copier may be installed using step-by-step instructions.INTRODUCTIONCOPYRIGHT © 1997 CANON INC. CANON NP6218 REV.0 MAY 1997 PRINTED IN JAPAN (IMPRIMÉ AU JAPON) i