Photocopying – Including fiber optics
Patent
1979-07-25
1981-05-26
Braun, Fred L.
Photocopying
Including fiber optics
271DIG2, 271308, G03G 1500
Patent
active
042695040
ABSTRACT:
A pickoff device for a copying machine of the image transfer type in which the leading edge of the copy sheet to which the image has been transferred is guided from the surface on which the image was formed and developed into the narrow space between a first continually driven clutch element and a second clutch element resiliently restrained against frictional rotation with the first clutch element in the absence of a copy sheet in the space between the elements with this space being sufficiently narrow that entry of the leading edge of the copy sheet into the space clutches the elements together to move as a unit to carry the copy sheet around to a location at which the clutch automatically releases as the leading edge of the copy sheet enters the nip between an upper metallic delivery roller and a lower delivery roller which moves with the first clutch member. Any suitable device, such as a mechanical finger, a jet of air or the like may be employed to direct the leading edge of the sheet into the clutch. The apparatus incorporates one or more elements for directing second sheets of misfed double feeds back to the delivery rollers thus to prevent the second sheet from wrapping around the cleaning roll of the machine.
REFERENCES:
patent: 3046009 (1962-07-01), Hartel
patent: 3684363 (1972-08-01), Ito et al.
patent: 3791729 (1974-02-01), Steiner
patent: 4062631 (1977-12-01), Ichikawa et al.
patent: 4073585 (1978-02-01), Kobayashi et al.
Beaudrot, C. B., "Backup Pick-Off Control"; IBM Technical Disclosure Bulletin; vol. 15, No. 7, Dec. 1972, p. 2195.
Braun Fred L.
Savin Corporation
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