Oki B 4100 Maintenance Manual page 520

(2) The basic rotation cycle of the toner sensor is as follows:
B1.5 Cover Open
Opening the stacker cover turns off the microswitch on the high-voltage power supply board to suspend +5 V
supply to the high voltage power supply. This results in the stop of all high-voltage outputs. At the same time,
the CVOPN signal is issued to notify the main control board of the switch status and cover open processing
is executed.
40055101TH Rev.4
Basic rotation cycle of toner sensor
Toner low time
Toner full time
T time
4.9 sec.
t1 > 1.2 sec.
1.2 sec. > t1 >
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