DEVELOPMENT
2.6.6 TONER DENSITY CONTROL
Overview
There are four modes for controlling toner supply as shown in the following tables.
The mode can be changed with by SP2-921. The factory setting is sensor control 1
mode.
Basically, toner density is controlled using the standard TD sensor voltage (Vts),
toner supply reference voltage (Vref), actual TD sensor output voltage (Vt), and ID
sensor output data (Vsp/Vsg).
Toner Supply Clutch On Time
TD Sensor Output
(Vt)
Vt Reference
Voltage (Vref)
Vt Reference
Voltage Update
ID Sensor Output
(Vsp/Vsg)
TD Sensor Initial
Setting (Vts)
2-46
20 September 1999
Calculation
New Vref
Vref Update
A265D517.WMF