COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR105 REV.0 JULY 2001CHAPTER 3 MAIN CONTROLLER3-123 Soft CountersThe machine is equipped with soft counters to keep count of prints it makes. The counterreadings are checked by pressing the Check key in the control panel.The counters are controlled by the main controller PCB, and the readings are incrementedwhen the following sensors detect paper during copying or printing.T03-300-01The counter mechanism consists of 16 items for large-size and small-size sheet, each with8 mode items.T03-300-02*1: At time of shipment from the factory, B4 or smaller; to count B4 as large-size, useservice mode.*2: Not counted; the machine is not equipped with fax functions.Copying/printing operation Counter sensorSingle-sided Finisher delivery sensorDouble-sided 1st side: PS142nd side: finisher delivery sensorCopying/printing mode Large-size Small-size*1Load copy A BPDL print C DBox print E FRemote copy print G HFAX reception print*2 I JReport print K LDouble-sided print M NScan O P