Ricoh Di-C1 Manual page 150

Toner Bottle Detection/Full Detection
Near-full
Sensor
Bottle Set
Sensor
When the waste toner sensor detects the actuator, the 'near-full'
condition occurs.
The machine can make about 2000 more copies (2 P/J, 20% colour
ratio, 5% coverage). Then the 'full' condition occurs and the
machine stops.
Slide 150
Bottle full is detected by estimating toner coverage since near-full was
detected. It does not count 2000 sheets.
150
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