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Method of and apparatus for processing photographic photosensitive film

  • US 6,427,306 B2
  • Filed: 07/17/2001
  • Issued: 08/06/2002
  • Est. Priority Date: 10/02/1997
  • Status: Expired due to Fees
First Claim
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1. A method of processing a film, comprising the steps of:

  • unreeling an elongate photosensitive photographic film from a film roll;

    feeding the photosensitive photographic film by a predetermined cut length and stopping the photosensitive photographic film in a cutting position;

    applying first and second inspecting beams to a passage along which the photosensitive photographic film moves, while said photosensitive photographic film is being stopped in said cutting position, said first and second inspecting beams being applied to a top side of the photosensitive photographic film and to a plurality of holes disposed in a side edge of the photosensitive photographic film, said first and second inspecting beams being disposed in predetermined spaced intervals from each other;

    detecting the individual first and second inspecting beams passing through respective ones of said holes or not, from a bottom side of the photosensitive photographic film, while said photosensitive photographic film is being stopped in said cutting position; and

    deciding whether any of the holes is positioned in said cutting position or not, based on detected results from said first and second inspecting beams.

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