Shutter Open/Close Mechanism - Konica Minolta Bizhub 501 Service Manual

Theory of Operation Ver.1.0 May. 2008
5.2.4

Shutter Open/Close Mechanism

• The paper exit section is provided with the Shutter [3] and this Shutter is normally in the up
condition (the condition in which the Paper Exit Opening is opened). However, when the Tray
goes up and down, the Paper Exit Opening is closed to prevent an accident such as hands
getting caught in the Paper Exit Opening.
• The Shutter is opened or closed by the Shutter Motor (M12) [2] that turns a gear train for
raising or lowering the Shutter.
• The Shutter Home Sensor (PS16) [4] detects the position of the gear, thereby determining
the position of the Shutter.
• When the Shutter does not close while in the Tray up/down operation, the Shutter Switch
(SW2) [1] turns OFF to shut off a 24V DC and stop the up/down of the Tray at once.
[1] Shutter Switch (SW2)
[2] Shutter Motor (M12)
[4]
[3] [2]
[3] Shutter
[4] Shutter Home Sensor (PS16)
5. OPERATIONS
[1]
4349t2c012na
21