COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)2. SENSOR MONITORSensor monitor mode is for displaying the state of the sensors in the paper path ofthe printer unit.Table 10-603 shows the display position and the display reading of each sensor.Table 10-603CHAPTER 10 TROUBLESHOOTING10-86DescriptionUse it to monitor the state of the sensors usedin the printer unit. Turn on the sensor manually;the results of execution will be indicated on thecontrol panel.For ‘xx yy zz’, see Table 10-603.RemarksSub MenuSENSORMONITORING1. The notation “zz” in the display panel (2nd row) is for checks at the factory, and isnot relevant for servicing work.2. Each sensor has its own response time, some requiring as much as 5 sec. Be sureto allow adequate time before making a decision.3. If multiple sensors are turned on at once, the reading will be the sum of the resultsin hexadecimal notation.4. Execution sensor monitor mode can drive some major parts. To avoid contact and,therefore, injuries, be sure to remove the intermediate transfer drum, various car-tridges, and secondary transfer belt assembly before starting service mode.In view of the work, remove the following for each respective sensor:• For PS1903 and PS5, remove the fixing assembly.• For PS11, remove the upper cover assembly.• For PS1207, remove the cassette 1.• For PS1208, remove the cassette 2.Caution:Display reading(hexadecimal)1008040201080201Display positionxxyySensorFace-down tray delivery sensor (PS11)Fixing delivery sensor (PS1903)Separation sensor (PS5)Pick-up assembly sensor (PS17)Registration paper sensor (PS1)Lower cassette paper absent sensor(PS1207)Upper cassette paper absent sensor(PS1208)Multifeeder tray paper sensor (PS1301)Download free service manual at http://printer1.blogspot.com
