Chapter 22-30F-2-442.4 Pickup and Feed System2.4.1 Overview/Configuration2.4.1.1 Overview 0007-4988The pickup/feed system serves to pick up and move paper, and it consists of various feed rollers.The machine possesses 2 inlet slots for paper (i.e., multifeeder tray and paper feeder) and 2 outlet slots (face-up tray and face-down tray).The presence/absence of paper is checked by the paper sensor (PS716, for the paper feeder) and by the multifeeder paper sensor (PS718, for the multifeeder tray).The various feed rollers of the machine are controlled by the DCNT board, which governs 2 motors, 2 clutches, and 2 solenoids.The paper path is equipped with 3 photointerrupters (PS1, PS711, PS717, PS720), checking to see whether paper has reached or moved past a specific sensor po-sition.If paper fails to reach or move past a specific sensor within a specific period of time, the CPU on the DCNT board will identify the condition as being a jam, andcommunicate the fact to the SCNT board.The following is a diagram showing how the machine's motors, solenoids, and sensors are arranged:DCNT BoardH.V.TTR2SSecondarytransfer rollerMain motorRollerengagingclutchRoller engagingdetection gearRollerengagingsensorEngaging camEngaging leverICLRSNS/TR2CLDPS714DCM701CL2
