Paper feeding device

Details Paper feeding device Paper feeding device

1993-09-08

1996-01-02

Hjerpe, Richard

Sheet feeding or delivering

Feeding

Multiple supplies

271145, 27126502, B65H 344

Patent

active

054801311

ABSTRACT:
A paper feeding device for a printer, a copying machine or the like is detachable therefrom and need not be electrically connected thereto. The device has a lifter or deck to store a large number of paper sheets thereon, transfer rollers for transferring paper sheets, a lifter motor for vertically moving the lifter, sensors for detecting the position of the lifter, paper size, the no paper sheet state, etc., and a microcomputer to control the transfer timing of the paper sheet. The device allows continuous copying or printing without frequent interruption for replenishment of paper sheets or interruption due to incorrect detection of abnormal operation.

REFERENCES:
patent: 3575410 (1971-04-01), Suzuki
patent: 3592464 (1971-07-01), Kanda
patent: 3655183 (1972-04-01), Wagner
patent: 3741357 (1973-06-01), Krysiuk et al.
patent: 3768806 (1973-10-01), Reehil
patent: 3804512 (1974-03-01), Komori et al.
patent: 4025187 (1977-05-01), Taylor et al.
patent: 4032137 (1977-06-01), Katayama et al.
patent: 4077620 (1978-03-01), Funk et al.
patent: 4253654 (1981-03-01), Buy
patent: 4310153 (1982-01-01), Kikuchi
patent: 4332375 (1982-06-01), Tsubo
patent: 4478508 (1984-10-01), Kato et al.
IBM Technical Disclosure Bulletin, vol. 20, No. 5 Oct. 1977, Paper Stack Height Control.

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