Automatic document feeder

Abstract

Abstract PURPOSE:To make sure of the placing position of an original sheet, by supporting a feed roller free of slide motion, and installing a driving device shifting in the axial direction. CONSTITUTION:A motor 40 is cut off of its current energization by a signal out of a control part C when a paper tip is detected by a tip detecting sensor S2 and a photointerrupter 55 counts a constant clock number, and simultaneously current-energization to a solenoid clutch 45 is cut off whereby a clutch shaft 42 is stopped in a moment. With this operation, rotation of a driving shaft 10 as well as motion of a full belt 9 are stopped in a moment, whereby an original sheet 5 is stopped at the specified position little apart from a stop end 4 of a platen 3. In this connection, current-energization to a solenoid brake 47 is cut off after the elapse of the specified time by a signal out of the control part C, and furthermore both plungers 15 and 18 are energized with current and feed rollers 11 and 13 and a conveyor belt 9 are moved to the recess side, thereby moving the original sheet 5 from B to A and making it contact with the stop end 4.

Inventors

• 👤 Toshihiro Kono
• 👤 河野　十志広

Bibliographic Details