Ricoh K-C3.5L Service Training page 66

Toner Supply Reference Voltage (Vref) Determination
Toner Supply Determination
Toner Supply ON Time
Slide 66
No additional notes.
Toner Density Control – 4
The toner supply reference voltage (Vref) is used for toner
supply determination (see below). Vref is determined using
the following data:
» ID sensor output (Vsp/Vsg)
» (Vts or the current Vref) – Vt
The reference voltage (Vts or Vref) is the threshold voltage
for determining whether or not to supply toner. If Vt
becomes greater than the reference voltage, the machine
supplies additional toner.
This can be checked using SP 2220.
Sensor supply mode on time can be adjusted with SP2922
and 2923.
Fixed supply mode on time can be adjusted with SP2922
and 2923.
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Model K-C3.5L