Photographic printing device and film carrier

Details Photographic printing device and film carrier Photographic printing device and film carrier

1995-06-07

1997-02-18

Grimley, Arthur T.

Photocopying

Projection printing and copying cameras

Identifying, composing, or selecting

355 18, 355 35, G03B 2752, G03B 2700, G03B 2772

Patent

active

056045654

ABSTRACT:
A photographic printing device and film carrier. A negative film is inserted into the film carrier. When a leading end portion of the film is placed in a set state of being nipped by rollers, a conveyed amount count value is set to zero. While the film is conveyed, the count value is updated, and a position of an image recorded on the film is detected by detecting an edge of the image. A detected image is positioned at an exposure position, and print-exposure processing is carried out. A determination is made as to whether a film end flag is on by detecting a trailing end of the film. When the flag is not on, processing waits until a PASS key or a print designation key is turned on. When the trailing end of the film has not yet been detected and the PASS key is turned on, an image is positioned, and print-exposure continues. When either the trailing end of the film is detected or a print completion designation key is turned on, the film is conveyed in the reverse direction until the count value becomes zero, and returns to its set state.

REFERENCES:
patent: 4088404 (1978-05-01), Zahn et al.
patent: 4990950 (1991-02-01), Tokuda
patent: 5043758 (1991-08-01), Nealon
patent: 5162842 (1992-11-01), Shiota
patent: 5317364 (1994-05-01), Fields
patent: 5467165 (1995-11-01), Jacob et al.

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