Kyocera KM-4230 Service Manual page 54

Correcting toner feed start level
The toner feed start level is corrected based on the absolute humidity and the drive time
so that toner density becomes proper depending on the change of the humidity and the
drive time.
• Correction based on the absolute humidity
Correction at the toner
feed start level (V)
0.74
B
0
– 0.16
0 3.09
Figure 1-3-28 Correction based on the absolute humidity
A When maintenance item U130 is carried out for initial developer setting, the toner sensor
control voltage (CONTROL) is set so that the toner sensor outputs 2.01 V when the
absolute humidity is 10.8 g/m
B When the absolute humidity is between 0 and 10.8 g/m
decreased with the absolute humidity so that the toner sensor output voltage drops.
C When the absolute humidity is between 10.8 and 35.9 g/m
increased with the absolute humidity so that the toner sensor output voltage rises.
D When the absolute humidity exceeds 35.9 g/m
by 0.74 V to regulate the toner sensor output.
C
A
Maintenance item U130 performed.
10.8
3
.
35.9
3
, the toner feed start level is
3
, the toner feed start level is
3
, the toner feed start level is increased
2A3/4
D
Absolute humidity
3
(g/m )
1-3-31