HP LaserJet M1120 Service Manual - Page 58
Pickup/feed/delivery system
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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 4-8 Pickup/feed/delivery system on page 42: ● M1, main motor ● SL1, pickup solenoid ● PS701, fuser-delivery sensor ● PS702, media-width sensor ● PS751, top-of-page sensor Figure 4-8 Pickup/feed/delivery system Pressure roller Feed roller PS702 PS701 Fuser sleeve Photosensitive drum M1 Transfer roller PS751 Single-sheet-feed tray Pickup roller SL1 Separation pad Multi-purpose tray 42 Chapter 4 Operational theory ENWW