Develop QC 2235 Plus, Руководство по обслуживанию

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Mechanical operations QC 2235plus Theory of Operation Ver.1.0 Feb. 2004
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4.4 Elevator tray
• The Elevator Tray moves up or down according to certain conditions.
4.4.1 Elevator tray ascent/descent mechanism
• The Elevator Tray is moved up or down by the Elevator Motor that turns forward or back-
ward.
Condition Elevator Tray Control
Standby
Stationary at the upper limit posi-
tion.
The position at which the Elevator Tray Upper
Limit Sensor PQ (PWB-D FN) detects the Eleva-
tor Tray.
Paper fed into
tray
Lowers to the lower limit position
depending on the number of
sheets of paper to be fed into the
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.
Paper removed
from tray Moves up to the upper limit posi-
tion.
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.
Overload
detected Moves down and then up after
paper has been fed into tray.
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 Upper Limit
Sensor PQ (PWB-D FN)
Elevator Tray Paper Sensor (PC8-FN)
Elevator Motor (M7-FN)
Elevator Tray