COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON CARD READER-C1/D1 REV.0 JAN. 2001iiINTRODUCTION2 Outline of the ManualThis Service Manual provides basic facts and figures need to service the Card Reader-C1/D1 in the field, and consists of the following:Chapter 1 Introduction outline, specifications, types of cardsChapter 2 Electrical System outline of card detectionChapter 3 Installation site requirements and installation procedureAppendix general circuit diagramThe following rules apply throughout this Service Manual:1. Each chapter contains sections explaining the purpose of specific functions and therelationship between electrical and mechanical systems with reference to the timingof operation.In the diagrams, represents the path of mechanical drive; where a signal nameaccompanies the symbol , the arrow indicates the direction of the electric sig-nal.The expression “turn on the power” means flipping on the power switch, closing thefront door, and closing the delivery unit door, which results in supplying the machinewith power.2. In the digital circuits, ‘1’ is used to indicate that the voltage level of a given signal is“High,” while ‘0’ is used to indicate “Low.” (The voltage value, however, differs fromcircuit to circuit.) In addition, the asterisk (*) as in “DRMD*” indicates that theDRMD signal goes on when ‘0’.In practically all cases, the internal mechanisms of a microprocessor cannot bechecked in the field. Therefore, the operations of the microprocessors used in the ma-chines are not discussed: they are explained in terms of from sensors to the input ofthe DC controller PCB and from the output of the DC controller PCB to the loads.The descriptions in this Service Manual are subject to change without notice forproduct improvement or other purposes, and major changes will be communicated inthe form of Service Information bulletins.All service persons are expected to have a good understanding of the contents of thisService Manual and all relevant Service Information bulletins and be able to identifyand isolate faults in the machine.