1 October, 1999
DEVELOPMENT
2-17
Detailed
Descriptions
2.4.6 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 the printer service mode (Service Menu 2:
Toner supply). The factory setting is P+T control 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).
Cross-reference: Section 4.2 Service Program Mode
TD Sensor Initial
Setting (Vts)
ID Sensor Output
(Vsp/Vsg)
Vt Reference
Voltage Update
Vt Reference
Voltage (Vref)
TD Sensor Output
(Vt)
Toner Supply Clutch On Time
Calculation
New Vref
Vref Update
G038D517.WMF