HP Color LaserJet Professional CP5220 Service Manual - Page 69
Jam detection,
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Jam detection The product uses the following sensors to detect the presence of print-media and to check whether the print-media is being fed correctly or has jammed: ● TOP sensor (PS5) ● Fuser delivery sensor (PS6) ● Loop sensor 1 (PS7) ● Loop sensor 2 (PS8) ● Output bin media full sensor (PS10) Figure 1-44 Sensors for jam detection PS10 PS6 PS7 PS8 PS5 Simplex media path Duplex media path (duplex model) The product detects the following jams: Pickup delay jam Tray 1 (MP tray): The TOP sensor does not detect the leading edge of paper within a specified period, including a retry, after the MP tray pickup solenoid is turned on. Cassette: The TOP sensor does not detect the leading edge of paper within a specified period, including a retry, after the cassette pickup solenoid is turned on. Paper feeder: The TOP sensor does not detect the leading edge of paper within a specified period after the paper-feeder (PF) feed sensor detects the leading edge. Pickup stationary jam The TOP sensor does not detect the trailing edge of paper within a specified period after the leading edge of paper reaches the secondary transfer roller unit. Fuser delivery delay jam The fuser delivery sensor does not detect the leading edge of paper within a specified period after the leading edge of paper reaches the secondary transfer roller unit. Fuser delivery stationary jam The fuser delivery sensor does not detect the trailing edge of paper within a specified period after the TOP sensor detects the trailing edge. The output bin media full sensor does not detect the leading edge of paper within a specified period after the fuser delivery sensor detects the leading edge. ENWW Pickup, feed, and delivery system 57