Konica Minolta bizhub 211, Service Manual

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Theory of Operation Ver. 1.0 Apr. 2007 2. Automatic Document Feeder (DF-502)
9
DF-502
Composition/Operation
2.3.5 Document Size Detection Mechanism
• The document size is determined by means of two different systems of document width
detection and document length detection.
A. Document Width Detection
• The width of an original is detected by the combination of Paper Width Sensors as
detected while the original is being taken up.
• Each sensor is located as follows with reference to the Document Edge Guide in the rear.
B. Document Length Detection
• The length of the original is detected by the Paper Length Sensor when the document is
loaded in the unit.
• The Paper Length Sensor is located at the Document Loading Tray.
2.3.6 Raised/Lowered Position Detection Mechanism
• There is a magnet installed in the ADF body to allow the copier to know that the ADF is
raised or lowered.
• This magnet actuates the Original cover set switch on the copier.
4688C509AA
Original cover set switch (S6)
Magnet