HP 2420 Service Manual - Page 83
Pickup/feed/delivery system, SL1, tray 1 pickup solenoid
UPC - 829160289205
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Pickup/feed/delivery system The pickup/feed/delivery system consists of several types of feed rollers and sensors. The dc controller uses two motors and two solenoids to drive the rollers. Three media-detection sensors detect media as it passes through the printer. If media does not reach or pass each sensor within a specified time period, the dc controller determines that a jam has occurred and alerts the formatter. The following components are identified in Figure 5-6. Pickup/feed/delivery system: ● M1, main motor ● M2, fuser motor ● SL1, tray 1 pickup solenoid ● SL2, tray 2 pickup solenoid ● PS2, duplexer media-detection sensor ● PS4, tray 2 media-detection sensor ● PS901, top-of-page sensor ● PS902, tray 1 media-detection sensor ENWW Pickup/feed/delivery system 69