G - Physics – 01 – D
Patent
G - Physics
01
D
101/43
G01D 15/10 (2006.01) B41J 25/316 (2006.01) B41M 5/26 (2006.01)
Patent
CA 1324027
ABSTRACT OF THE DISCLOSURE Among various type of thermal printing systems printing machine having automatic paper feeding mechanism are widely used which feeds cut paper sheets successively one after another from a cassete for holding cut paper sheets stock to a printing area, where the fed paper sheet is stretched tightly between a pair of rollers and is depressed on the opposite faces of a platen to repeat printins. However,there sometimes may arise crumling the fed paper sheet between either one pinch roller or rollers and the plateneus fed paper sheet between either one pinch roller or rollers and the platen due to slightly misoriented paper sheet or to minor deviation in the size of machine parts, thereby it is often required to stop printis to remove the crumpled paper sheet out of the system. In order to solve such problems,a proposal has been made to provide a means for depressins or releasing such pinch rolleror rollers againt and away from the platen. And this concept has been carried into practice by using a king of lever for effecting the depressing or releasing motion in two embodiments,one rotes a cam positione d between a pair of pinch roller levers by the rotation of the cam,while in the other embodiment the lever itself acts as a cam or a wedge to actuatesthe pair of pinch roller to be depressed on or allowed to be released from the depressed state. By virtue of the lever action the spoace between two opposing pinch roll- er can be widened in connection with the closing of the upper frame on the lower frame and allws the paper to be removed.
603310
Ishiyama Kiyoshige
Mitsushima Susumu
Ogita Hiromitsu
Okuno Takeshi
Gowling Lafleur Henderson Llp
Shinko Denki Kabushiki Kaisha
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