Device and process for paper feed in a plastic drawing and...

Details Device and process for paper feed in a plastic drawing and... Device and process for paper feed in a plastic drawing and...

B - Operations, Transporting

43

L

33/17

B43L 13/00 (2006.01) B43L 13/02 (2006.01) G01D 15/24 (2006.01)

Patent

CA 1288240

ABSTRACT OF THE DISCLOSURE A mechanism for the feed of the paper in a flat plotter for drawing, which is cheap and has a high level of operational reliability. The mechanism comprises a reduction motor which rolls up the paper after it has passed through the drawing zone; in the drawing head an optical line reader is fitted which is adapted to read a trace made by the drawing tool once drawing has been completed in one window; when this trace is detected, a stop command is delivered to the rolling reducer motor. Once the paper feed has stopped, in order to exactly join and continue the drawing of the following window in the correct form, the drawing tool carries out a search for the trace at very low speed. When the line has been detected in this process, the plotter continues with the drawing opera- tion in the correct place.

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