Chapter 77-8starts rotating.4) When the pickup roller rotates once, the toothless portion of the pickup roller drive gear comes to the position of the relay gear and consequently drive power ofthe main motor is not transferred, stopping the rotation of pickup and feed rollers.5) The picked up paper is fed to the registration roller through the vertical path roller.F-7-137.3.3 Cassette Paper Size Detection 0011-0289iR2016J / iR2016 / iR2020 / / iR2016i / iR2020iThe size of the paper in the cassette is detected by the DC controller PCB when the user changes the position of the cassette paper size lever. When the cassette isinserted in the iR host machine, the paper size lever pushes the paper size switches provided in the iR host machine to allow the DC controller PCB to detect presenceof the cassette and the size of paper. Paper size switches are arranged as shown below. Paper sizes are determined by the combinations of the switches pushed bythe paper size lever.F-7-14T-7-8ON:The push switch is pushed.OFF:The push switch is not pushed.*:Not used.A3 A4 A4R A5 B4 B5 B5R LGL 11x17 LTR LTRR STMT U1* U2* U3*PSIZE1 ON OFF ON OFF OFF ON ON OFF ON ON ON ON OFF OFF OFFPSIZE2 OFF ON OFF ON OFF OFF ON ON OFF ON ON ON ON OFF OFFPSIZE3 OFF OFF ON OFF ON OFF OFF ON ON OFF ON ON ON ON OFFPSIZE4 OFF OFF OFF ON OFF ON OFF OFF ON ON OFF ON ON ON ONPSIZE4 PSIZE2PSIZE1PSIZE3