Brother HL-4000CN Service Manual page 297

2.8.6 Transfer and cleaning ............................................................................................. VI-30
2.8.7 ADC and environment sensing ............................................................................... VI-31
2.8.8 Monitoring................................................................................................................ VI-32
2.9 Fusing and Transportation
2.9.1 Fusing and fuser heat control.................................................................................. VI-33
2.9.2 Fuser drive control .................................................................................................. VI-34
2.9.3 Fan control .............................................................................................................. VI-35
2.9.4 Exit and invert transportation .................................................................................. VI-36
2.9.5 Exit and invert mechanism ...................................................................................... VI-37
2.9.6 Monitoring................................................................................................................ VI-38