Photocopying – Contact printing – Light boxes
Patent
1993-05-03
1994-11-15
Grimley, A. T.
Photocopying
Contact printing
Light boxes
219216, 355290, 355309, G03G 1520
Patent
active
053653203
ABSTRACT:
In a sheet warp prevention mechanism adapted to be positioned in an imaging device for forming a visible image, the imaging device includes a pair of rollers adapted to be brought into and out of contact with each other in accordance with a rocking operation of one of the pair of rollers about a predetermined shaft member. The one of the pair of rollers which is arranged to be rotated in a predetermined direction for feeding the continuous sheet has a gear member coaxially provided therewith which is brought into engagement with another gear member coaxially provided with the shaft member about which the roller rotates. A driving source for driving both the one of the pair of rollers and a feeding member for feeding the continuous sheet toward the pair of rollers, and a transmitting mechanism for transmitting the driving force toward the pair of rollers is also included. The sheet warp prevention mechanism include an inhibiting member, provided between the transmitting mechanism and the another gear member, for inhibiting transmission of the rotating force of the one of the pair of rollers to the transmitting mechanism. Thus it becomes possible to prevent the warp of the sheet caused by an undesirable feeding operation.
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Hirano Masakazu
Takano Masatoshi
Asahi Kogaku Kogyo Kabushiki Kaisha
Grimley A. T.
Lee Shuk Y.
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