COPYRIGHT © 1999 CANON INC. CANON 660/2100 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)C. Inputs to and Outputs of the Major PCBs1. Inputs to and Outputs from the DC Controller (1/10)CHAPTER 2 BASIC OPERATION2-3DC controller PCBPick-up PCBSeparationsensor When the sensor detectspaper, '0'.J49-3-1-2J2 -5-7-6 SEPS*P5SAVE-5-15 UDECKS*Cassette 1 paperabsent sensor When paper is present inthe cassette 1, '0'.-11-9 LDECKS*Cassette 2 paperabsent sensor When paper is present inthe cassette 2, '0'.-6-16Cassette 1sensorWhen the cassette 1 isdetected, '1'.-10-12 LDECKC*UDECKC*Cassette 2sensor When the cassette 2 isdetected, '1'.J14-3-2-1J1206-1-2-3Pick-up unitcover sensor+5VGNDRDOORS RDOORS*-16-6 When the pickup unit coveris opened, '0'.J13-3-2-1J1205-1-2-3J1201-4-14J210-18-8+5VGNDFEEDS*P5SAVEFEEDS* When the sensor detectspaper, '0'.-14-8 UPVS2*Cassette 1 paperlevel sensor 2-15-5 UPVS1*Cassette 1 paperlevel sensor 1-12-10 LPVS2*Cassette 2 paperlevel sensor 2-13-7 LPVS1*Cassette 2 paperlevel sensor 1Registrationpaper sensor When the sensor detectspaper, '0'.REGS*P5SAVEJ16-3-1-2J212-8-10-9-1-3-2-3-1-2J15For details, see p. 5-6.For details, see p. 5-6.J38-1-3-2-3-1-2PS 1PS 5PS 17PS 18PS 1201PS 1202PS 1204PS 1203PS 1206PS 1205PS 1207PS 1208The level of paper insidethe cassette 2 is checkedbased on combinations ofthe states of the two sensors.Pick-upassemblypaper sensorThe level of paper insidethe cassette 1 is checkedbased on combinations ofthe states of the two sensors.Figure 2-103Download free service manual at http://printer1.blogspot.com