U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Large copy sheet feeding system

Patent 4847635 Issued on July 11, 1989. Estimated Expiration Date: Icon_subject August 13, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Paper advance mechanism for an ink jet printer Patent #: 4165029
Issued on: 08/21/1979
Inventor: Mitchell

Inventors

Assignee

Application

No. 07/085813 filed on 08/13/1987

US Classes:

346/136, Web271/256, With means to interrupt feeding347/104, Physical handling347/3Reproduction (e.g., facsimile, copier, etc.)

Examiners

Primary: Goldberg, E. A.
Assistant: Tran, Huan

Attorney, Agent or Firm

International Classes

B41J 13/10 (20060101)
B65H 7/00 (20060101)
B65H 7/18 (20060101)
B65H 3/00 (20060101)
G03G 15/00 (20060101)

Abstract

A feed system for large copy sheets to feed such sheets through a copying machine, such as a white print, blue print or other copying machine, a computer printing machine, a pen plotter of other vector plotter, or raster plotter, or a printing machine. A supply roll is provided with copy sheets wound on the supply roll in an interleaved or overlapping array. A pair of support rollers form a cradle for freely supporting the supply roll, with at least one of the support rollers being driven. A printing roller grasps a copy sheet as the sheet is fed from the supply roll. A sensor stops the driven support roller and, in turn, the supply roll at a given time in a predetermined cycle whereby the printing roller can pull the fed sheet away from the supply roll and away from a succeeding overlapped sheet interleaved with the fed sheet.

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