4-13
FS-1800/1800N | FS-3800/3800N
A toner sensor is provided within the developer. As the toner supply from the toner container
dwindles and the toner level lowers in the reservoir, the sensor translates it into an electrical signal
through its diaphragm, urging the toner motor to feed more toner.
Figure 4-1-11 Toner sensor
Toner
Toner hopper
Toner sensor
Developer
Diaphragm
Sensable level
Toner container
Toner motor