Sheet feeding or delivering – Feeding – Separators
Patent
1997-09-12
1999-04-13
Bollinger, David H.
Sheet feeding or delivering
Feeding
Separators
271104, 271108, 271171, B65H 314
Patent
active
058935541
ABSTRACT:
In order to prevent a situation that due to inherent variations in capability of a motor for a fan for blowing and sucking air, a motor for driving the suction transportation belt and the like, an external atmospheric pressure, and attaching of duct, the blowing force and the suction force upon the sheets become unstable, so that during suction attraction to the suction transportation belt, the sheets are not sucked parallel to the transportation direction but are sucked displaced, and therefore, a paper feeding error (jamming) results. An air blast nozzle for floating up the topmost sheet is disposed on the side to a sheet feeding cassette, and a suction transportation belt for suction attracting the topmost sheet is disposed above the sheet feeding cassette. A sheet pressing member is disposed above the sheet feeding cassette and a sheet rear end restricting plate. When the sheets have a small size which is smaller than a predetermined size, the sheet pressing member presses the topmost sheet at a rear end of the sheet from above and confines the sheet within a restricted area which is defined by the sheet rear end restricting plate and a sheet width restricting guide until the floated sheet is suction attracted to the suction transportation belt.
REFERENCES:
patent: 5090676 (1992-02-01), Matsuno et al.
patent: 5135213 (1992-08-01), Malachowski et al.
patent: 5344133 (1994-09-01), Jantsch et al.
patent: 5429348 (1995-07-01), Martin
Inoue Tatsuya
Okahashi Yoshitaka
Bollinger David H.
Sharp Kabushiki Kaisha
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