Full-Of-Paper Detecting Mechanism - Konica Minolta bizhub c650 Service Manual

5. Operation
5.1.3

Full-of-paper detecting mechanism

• Each tray is mounted with a tray paper full detect board that detects a full-of-paper condi-
tion of the tray.
• The tray paper full detect board consists of a light emitter (LED) and a photoreceiver that
are paired up to serve for each tray. The system determines that the tray is in a full-of-
paper condition when paper blocks the LED light.
• When a full-of-paper condition is detected, the copier feeds paper being printed out and
then stops, with a corresponding message shown on the control panel.
• A stack of 150 sheets of plain paper (lower tray) is detected as a full-of-paper condition,
excluding curled paper.
Upper tray paper full detect board/PR (T2FDTB/PR)
Lower tray paper full detect board/PR (T1FDTB/PR)
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Theory of Operation Ver. 1.0 Aug. 2007
Upper tray paper full detect board/LED (T2FDTB/LED)
Lower tray paper full detect board/LED (T1FDTB/LED)
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