COPYRIGHT © 2002 CANON INC. 2000 CANON iR1600/iR2000 REV.1 JAN. 2002 6-13CHAPTER 6 PICKUP/FEDING SYSTEM4 Detecting Jams4.1 OutlineThe machine is equipped with 3 jam sensors used to motor the movement of paper. In ad-dition to these sensors, the machine is also provided with sensors to find out the presence/absence of paper in the cassette and manual feed tray (1 pc. each).The presence/absence of paper or of a jam is checked at such times as programmed in ad-vance in the CPU of the DC controller PCB and in relation to the presence/absence of paperover a specific sensor at a given time. If the machine detects a jam, it will turn off the mainmotor (M101), and will indicate a jam message in the control panel.MemoIf a jam occurs while the machine is in copy mode, all images stored inmemory will be lost, requiring the machine to start with the original forwhich a jam has occurred.The following are the sensors used to monitor the movement of paper:NotationPS101PS102PS103PS105PS151PS152NameRegistration paper sensorPaper full sensorDelivery sensorMultifeeder paper sensorCassette paper sensorRetry sensorDelay jamPresentAbsentPresentAbsentAbsentPresentStationaryjamPresentAbsentPresentAbsentAbsentPresentStationary jamat power-onPresentAbsentPresentAbsentAbsentPresentT06-401-01You can check the condition of a sensor (presence/absence of paper or jamdetection) by making the following selections; service mode>test mode>6:FACULTY TEST>6-3: SENSOR.
