HP LaserJet M1319 Service Manual - Page 70
HP LaserJet M1319f components, Basic operation, than one is loaded in the ADF tray.
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HP LaserJet M1319f components This section presents an overview of the relationships between unique major components in the HP LaserJet M1319f. This section describes the optical scanning system and ADF pickup and feed system used in the product. . For information about image formation, see Image-formation system on page 48. Basic operation The HP LaserJet M1319f uses a pickup and feed system (document transportation) and an optical scanning system. Figure 5-7 Basic operation block diagram on page 52 shows the relationship of the two systems. Figure 5-7 Basic operation block diagram A document is placed into the ADF tray. When the formatter sends a signal to the optical scanning system, the document is picked up and fed into the optical system through a series of rollers and a separation pad. The separation pad prevents the pickup system from feeding multiple pages if more than one page is loaded in the ADF tray. As the document passes the contact image scanner, the scanner illuminates the document. The optical scanning system captures and amplifies the reflected light and converts it to a digital signal, and then sends the digital signal to the formatter for image-processing. 52 Chapter 5 Operational theory ENWW