HP Enterprise CP5525 manual Loop control

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 1-42 Loop control

	DC controller
		Sensor flag for heavy paper
M5 Fuser motor		Sensor flag for other than heavy paper
Fuser sleeve
	PS8
	PS7
	Loop sensor2
Pressure roller	Loop sensor1
<A>	<B>	<C>
Small-loop	Large-loop	Large-loop
	(heavy media)	(other than heavy media)

Pressure roller

Fuser sleeve

ITB

Loop sensor1	Loop sensor2	Speed of fuser motor	Illus.
OFF	OFF	Speed down	A
ON	OFF	Heavy media: Speed up	B
		Other media: Speed down
ON	ON	Speed up	C

60 Chapter 1 Theory of operation ENWW