Operation; Document Take-Up And Feed - Konica Minolta DF-502 Service Manual

2. Automatic Document Feeder (DF-502)
2.2

Operation

2.2.1

Document Take-Up and Feed

• The document is taken up as the Pick-Up Roller and Take-Up Roller turn.
• The Pick-Up Roller transports the document up to the Take-Up Roller.
• After a scan is completed, the Main Motor is turned backward to raise the Pick-Up Roller.
• The Pick-Up Roller and the Take-Up Roller are turned through the Paper Take-Up Clutch
and by a gear train and a belt driven by the Main Motor.
• The Paper Empty Sensor is used to detect a document loaded on the Document Loading
Tray.
• The Document Stoppers determine the leading edge position of the document loaded on
the Document Loading Tray. They are in the lowered, swung-down position in the
standby state and swing upward when the document is to be taken up.
• The swing-up and swing-down motion of the Document Stoppers is operatively con-
nected to the raising and lowering of the Pick-Up Roller.
Paper Take-Up Clutch (CL1)
Paper Empty Sensor (PC2)
4
Main Motor (M1)
Take-Up Roller
Document Stoppers
Theory of Operation Ver. 1.0 Apr. 2005
Pick-Up Roller
4688M005AA