sensor 2 is for heavy media. The DC controller slows the fuser motor when the sensor is off and speeds
up the sensor when the sensor is on.
Figure 1-41 Loop-control mechanism
Pressure roller
The pressure roller rotates faster
than the secondary transfer roller
Loop sensor: OFF
SR14: Loop sensor 1
SR15: Loop sensor 2
Sensor flag
ITB
Loop sensor 1,2
Secondary transfer rollerr
Pressure roller
For light media
For heavy media
Sensor flag
Sensor flag
Loop sensor: ON
The pressure roller rotates slower
than the secondary transfer roller
50 Chapter 1 Theory of operation ENWW