Exposure system of image forming apparatus
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United States of America Patent
Stats
-
May 8, 1990
Grant Date -
N/A
app pub date -
Feb 16, 1989
filing date -
Jun 23, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
For obtaining a required amount of exposure on a light sensitive film in an image forming apparatus in which a plurality of flash lamps disposed in opposition to the original are lit for exposure of the original to form a copied image on a light sensitive film, the individual flash lamps are alternately lit a plurality of times, respectively, even when the requisite quantity of light can be obtained by lighting alternately only once each of the flash lamps, to thereby prevent nonuniformity of exposure of the film due to the reciprocity law failure.
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Cited Art Landscape
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