COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001SERVICE MODES-41COPIER>I/OAddress bit Description Notation RemarksAD-P01 tray volume VR1 (hereafter, analog ports)AD-P02 post-separation sensor analog input S3AD-P03 read sensor analog input S2AD-P04 delivery paper reversal sensor analog input S1AD-P05 not usedAD-P06 not usedAD-P07 not usedAD-P08 not usedDA-P01 pickup motor M1 (hereafter, analog ports)DA-P02 feed motor M2DA-P03 delivery reversal motor M3DA-P04 post-separation sensor_DA S3DA-P05 post-separation sensor_TH S3DA-P06 read sensor DA S2DA-P07 read sensor TH S2DA-P08 delivery reversal sensor_DA S1DA-P09 delivery reversal sensor_TH S1DA-P10 not usedDA-P11 not usedDA-P12 not usedIndicates the input/output ports of the finisher controller PCB.Address bit Description Notation RemarksP001 0 buffer motor A M2 during output,alternately ‘0’ and ‘1’1 buffer motor B M2 during output,alternately ‘0’ and ‘1’2 buffer motor A* M2 during output,alternately ‘0’ and ‘1’3 buffer motor B* M2 during output,alternately ‘0’ and ‘1’4 delivery motor A M3 during output,alternately ‘0’ and ‘1’5 delivery motor B M3 during output,alternately ‘0’ and ‘1’6 upper path switch solenoid SL2 0: ON7 buffer path switch solenoid SL1 1: keep, 0: release