Photocopying – Contact printing – Light boxes
Patent
1994-02-18
1995-06-27
Smith, Matthew S.
Photocopying
Contact printing
Light boxes
271245, 355271, 355308, 355317, 355321, G03G 1514, G03G 1500
Patent
active
054284317
ABSTRACT:
When an electromagnetic clutch 45 is turned on, a rotating force of a main motor 62 is transmitted to a shaft 42 of a drive roller 41a of transport rollers 41 through a double gear 49 and a high-speed gear 46. As a result, the drive roller 41a rotates so as to produce a transport speed higher than the circumferential speed of a photoreceptor drum 13, thereby looping a transfer material P. When the electromagnetic clutch 45 turned off, the rotating force of the main motor 62 is transmitted to the shaft 42 through the double gear 49 and a low-speed gear 47. Accordingly, the drive roller 41a rotates so as to produce a transport speed lower than the circumferential speed of the photoreceptor drum 13. As a result, the loop of the transfer material P gradually shrinks and finally disappears. The drive roller 41a is therefore separated from the main motor 62 by the action of a one-way clutch 48, to follow the rotation of the photoreceptor drum 13 while exerting tension on the transfer material P.
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Abe Takashi
Okoshi Takeshi
Fuji 'Xerox Co., Ltd.
Smith Matthew S.
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