Ricoh A229 - Toner End Detection

DEVELOPMENT AND TONER SUPPLY
2-74
A229 SM
Toner End Detection
The toner end sensor [A] detects whether sufficient toner remains in the toner
hopper or not. The toner end sensor checks for a toner end condition once when
the toner supply clutch turns on. When there is only a small amount of toner inside
the toner hopper and pressure on the toner end sensor becomes low, the toner
end sensor outputs a pulse signal (once per copy).
[A]