Film feeder for automatic developing machine
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United States of America Patent
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Sep 16, 1997
Grant Date -
N/A
app pub date -
Dec 27, 1995
filing date -
Dec 28, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a film feeder for use in an automatic developing machine, a cutter control circuit actuates a cutter using electrical energy from a utility power source and electrical energy stored in a capacitor if a film end sensor detects the tail end of a film during normal feeding conditions. In the event that the film end sensor detects the tail end of the film in the event of a power failure, the cutter control circuit actuates the cutter using the electrical energy stored in the capacitor. This makes it possible to actuate the cutter even in the event of a power failure as well as to reduce the capacitance of the utility power source to a small level.
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