Konica Minolta DF-502, Руководство по обслуживанию, Страница: 15 / 52

Theory of Operation Ver. 1.0 Apr. 2005 2. Automatic Document Feeder (DF-502)
9
DF-502
Composition/Operation
2.6 Document Size Detection Mechanism
• The document size is determined by means of two different systems of document width
detection and document length detection.
✽
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.
✽
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.
2.7 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 Size Reset Switch on the copier.
Size Reset Switch (S5)
Magnet
4034M521AA
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