Pickup and Feeding The Paper Feeder picks up the paper from the installed trays and feeds the paper to the printer. The flow of the paper is shown below. Figure 5-27 Paper Feed from Trays The paper size and the presence of the 500-sheet Tray are detected by three switches (SW801, 802, 803) on the Paper Feeder Driver PCA. The relationship between the switch combinations and the paper sizes is the same as for the printer. The Paper Feeder is driven by the Main Motor (M101) of the printer. When the /PRNT signal is sent to the Paper Feeder from the Formatter, the Main Motor (M101) of the printer starts rotation.
When the Main Motor reaches its prescribed speed, the Paper Feeder Driver PCA receives the pickup command from the Engine Controller Board, and the Paper Feeder Pickup Solenoid (SL801) is turned on. (The Pickup Roller, Feed Roller, and Separation Roller are driven by the Main Motor’s rotation.) The Pickup Roller, driven by the Solenoid, rotates once, picking up the paper inside the 500-sheet tray. Any unnecessary sheets are removed by the Separation Roller and the paper is fed to the pre-feed sensor (PS102) of the printer. 5-42 Functional Information