Table 5-2 Motors, solenoids, sensors, and switches Tray 1 (multi-purpose tray) The multi-purpose tray paper sensor (PS4) senses the presence of the paper in the multi-purpose tray. The manual feed solenoid (SL1) transmits the rotational force of the pick-up motor to the manual feeding pick-up roller. As the pick-up roller rotates, the pick-up cam pushes up the paper- lifting plate. This causes the paper to be pressed against the pick-up roller and thus picked-up by its rotation. After the separation pad separates multiple sheets, the paper is fed into the printer one sheet at a time.
Figure 5-27 Tray 1 manual feed Table 5-3 Motors, solenoids, clutches, and sensors 124 Theory of operation C7085-90921 Reference Description M2 Pick-up motor SL2 Cassette pick-up solenoid CL1 Registration clutch PS2 Registration paper sensor PS301 OHT sensor PS8 Cassette paper sensor SW801 Paper-size detection switch SW802 Paper-size detection switch SW803 Paper-size detection switch Reference Description M2 Pick-up motor SL1 Multi-purpose tray pick-up solenoid CL1 Registration clutch PS2 Registration paper sensor PS3 Last paper sensor PS4 Multi-purpose tray paper sensor PS301 OHT sensor