HP Color LaserJet Professional CP5220 Service Manual - Page 65
HP Color LaserJet Professional CP5220 Manual
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Two loop sensors located between the fuser sleeve and the ITB detect the paper loop. Accordingly the DC controller controls the rotational speed of the fuser motor to keep the loop amount properly. ● Loop sensor 1: Detects the paper loop for heavy media ● Loop sensor 2: Detects the paper loop for plain media other than heavy media Figure 1-40 Loop control DC controller M5 Fuser motor Sensor flag for heavy paper Sensor flag for other than heavy paper Fuser sleeve Pressure roller Small-loop PS8 PS7 Loop sensor2 Loop sensor1 Large-loop (heavy media) Large-loop (other than heavy media) Fuser sleeve ITB Pressure roller Loop sensor1 OFF ON ON Loop sensor2 OFF OFF ON Speed of fuser motor Speed down Heavy media: Speed up Other media: Speed down Speed up Illus. A B C ENWW Pickup, feed, and delivery system 53
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