Konica Minolta BizHub C360 Service Manual page 192

Theory of Operation Ver. 1.0 Jul. 2009
C. Operation timing
(1) Move to paper feed position (up)
• At the start of a manual paper feed sequence, the paper lift-up plate is raised to the
paper feed position.
• After the lapse of a predetermined period of time, the manual pick-up solenoid is deener-
gized. The paper lift-up plate is stopped at the paper feed position.
• The manual lift-up position detection plate mounted coaxially with the paper lift-up cam
rotates in synchronism with the paper lift-up cam. When the paper lift-up plate is raised,
the manual lift-up position sensor which has been blocked by the manual lift-up position
detection plate is unblocked. Then, the machine determines that the paper lift-up plate is
raised to the paper feed position.
• If the manual lift-up position sensor remains unblocked even after the manual pick-up
solenoid has been deenergized, the machine determines that the paper lift-up plate is at
the paper feed position.
• As the paper level lowers during paper feed, the spring pushes up the paper lift-up plate,
so that the paper stack is pushed up to the optimum paper feed position.
(2) Move to standby position (down)
• The paper lift-up plate is lowered if there is no print job that uses the manual trays and
the paper exit sensor detects a sheet of paper fed from the manual tray.
• The paper lift-up plate is lowered if the above conditions are met even during execution of
another job.
• If a manual paper empty condition is detected at the paper feed position, the paper lift-up
plate is lowered to the standby position.
• If a paper misfeed occurs, the paper lift-up plate is stopped at the paper feed position.
When the transport motor rotates stably after the misfeed is cleared, the paper lift-up
plate is lowered to the standby position.
• After the lapse of a predetermined period of time, the manual pick-up solenoid is deener-
gized. The paper lift-up plate is stopped at the standby position. As the paper lift-up plate
lowers, the manual lift-up position sensor no longer detects the paper lift-up plate. The
machine determines that the paper lift-up plate is at the standby position based on the
fact that the manual lift-up position sensor does not detect the paper lift-up plate even
after the manual pick-up solenoid has been deenergized.
16. PAPER FEED SECTION (MANUAL TRAY)
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