Camera using film having magnetic recording portion

Details Camera using film having magnetic recording portion Camera using film having magnetic recording portion

1993-06-21

1994-08-30

Gellner, Michael L.

354 76, 354275, 3542891, G03B 1724, G03B 2900, G03B 1726, G03B 1700

Patent

active

053432649

ABSTRACT:
This invention relates to a camera using a film having a magnetic recording portion, which has magnetic heads for recording/reading data on/from a magnetic recording portion formed on part of a photosensitive film, which magnetic heads can be urged/withdrawn against/from the film. In this camera, data representing the number of times that a film feed operation or a photographic operation is performed is stored in a storage unit, and necessity to clean the magnetic heads is determined on the basis of the data. If it is determined that cleaning must be performed, a warning unit performs a warning display or inhibits a photographic operation.

REFERENCES:
patent: 3078759 (1963-02-01), Brunswick
patent: 4860037 (1989-08-01), Harvey
patent: 4864332 (1989-09-01), Harvey
patent: 5136317 (1992-08-01), Goto et al.

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