Elevator Tray; Elevator Tray Ascent/Descent Mechanism - Konica Minolta bizhub C250 Service Manual

5. Mechanical operations
5.4

Elevator tray

• The Elevator Tray moves up or down according to certain conditions.
5.4.1

Elevator tray ascent/descent mechanism

• The Elevator Tray is moved up or down by the Elevator Motor that turns forward or back-
ward.
Condition
Stationary at the upper
Standby
limit position.
Lowers to the lower limit
Paper fed into position depending on the
tray number of sheets of paper
to be fed into the tray.
Paper removed Moves up to the upper
from tray limit position.
Moves down and then up
Overload
after paper has been fed
detected
into tray.
Elevator Tray
20
Elevator Tray
The position at which the Elevator Tray Upper Limit Sen-
sor PQ (PWB-D FN) detects the Elevator Tray.
If the Elevator Tray Upper Limit Sensor PQ (PWB-D FN)
is activated while paper is being fed into the tray, the tray
is lowered until the sensor is deactivated.
If the Elevator Tray Paper Sensor (PC8-FN) is unblocked
when paper is removed from the tray, the tray is raised
until the sensor is blocked.
Lowers the tray for a given period of time, then raises it
to the upper limit position. An overcurrent is detected in
the Elevator Motor during this period.
Elevator Tray Paper Sensor (PC8-FN)
Theory of Operation Ver. 1.0 Jul. 2005
Control
Elevator Tray Upper Limit
Sensor PQ (PWB-D FN)
Elevator Motor (M7-FN)