Punching apparatus for moving a punching unit in a circumferential direction of a cylindrical inner surface scanner
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United States of America Patent
Stats
-
Jan 20, 1998
Grant Date -
N/A
app pub date -
Feb 10, 1995
filing date -
Feb 10, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A photosensitive material is mounted onto an inner surface of a cylindrical inner surface drum. An input signal which provides the size of the photosensitive material is supplied to a controller. As the controller drives a pulse motor under the control of a control signal, a moving part with which punching units are connected is moved in a circumferential direction of the drum by means of the pulse motor and positioned at the desired positions for punching. Then only two punching units, determined by the controller in accordance with the size of the photosensitive material, are driven to punch holes in the photosensitive material.
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