Sheet feeder

Abstract

Abstract PURPOSE:To get rid of a non-detection state as well as to solve a problem of wrong operation due to misconception, by making operation of a detecting member so as to be undone as long as the setting time required for completion of a hold-in-between action. CONSTITUTION:When a span of 0.5sec elapses after a detecting member 13 detects a fact of paper feeding, it makes a paper feeding solenoid turn on via a drive circuit. With this solenoid turned on, a rotary roller 11a and a movable rotary roller 11b both held a sheet in between, and since a motor is already rotated, the sheet comes to be conveyed in consequence. At this time, a timer is operated as long as 0.2 second, during this while, detection output of the detecting member 13 is made so as to suspend its read into a microcomputer in design. After the elapse of the 0.2 second, when the detecting member 13 fails to detect the paper feeding, the paper feeding solenoid is turned off with the specified signal, and the movable rotary roller 11b comes off the rotary roller 11a and it assumes a posture of standing by till the next sheet is inserted.

Inventors

• 👤 Yoshinori Abe
• 👤 阿部　喜則
• 👤 Masahiro Kondo
• 👤 正博 近藤
• 👤 Shunichi Abe
• 👤 俊一 阿部

Bibliographic Details