Paper path and imaging Paper is fed, transported, and discharged through the path indicated with the arrow in the figure below. In this section, the copy lamp (cathode ray tube, Xenon lamp) radiates light onto a document, and the reflected light is detected by The OPC drum is used as the photoconductor drum, and one-com- the image sensor (CCD element) to conĢ. Scanner (reading) section Scanner (writing) section Fusing/paper exit section Paper feed section Image process section The operations of this section are composed of five processes ex- Scanner (read) section posure, development, transfer, separation, and discharge. Block diagram SCANNER (READING) SECTION Control signal, detection signal, DOCUMENT drive signal, control data line COPY LAMP Image data signal line SCANNER MIRROR LENS CCD LIGHT QUANTITY SCANNER HOME MOTOR POSITION SENSOR Image (light) SENSOR Power line Paper path line COPY LAMP A/D OPERATION PWB CONTROL PWB CPU ASIC MEMORY ONVERTOR LAMP (LED) ICU PWB HOST(PC) KEY MEMORY ASIC FAN MOTOR MCU (PCU) PWB SCANNER (WRITE) SECTION LASER DIODO LASER BEAM SENSER MOTOR SC SERVICE MANUAL CODE: 00ZAL840//B1E BASIC MANUAL DIGITAL COPIER MODEL AL-800/840 CONTENTS OPERATING PRINCIPLE.
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