Patent ID: 6302017
Filing Date: 2001-10-16
Classification: B41L

Abstract:
A stencil printing method, using a stencil printing machine comprising a thermal head for forming a desired image in a stencil sheet heat-sensitively to make a stencil, a platen roller for transporting the stencil sheet in synchronization with the formation of the image in the stencil sheet by the thermal head, the platen roller being arranged so that the stencil sheet is sandwiched between the platen roller and the thermal head, a driving unit for rotating the platen roller at a given speed, and a detecting roller that is arranged to contact the stencil sheet at a given pressure, and is trail-rotated with the transportation of the stencil sheet by the rotation of the platen roller, comprising the steps of:detecting a feed-per-revolution of the stencil sheet on the basis of the rotation amount of the detecting roller for a given time;calculating a driving speed of the platen roller correspondingly to the detected feed-per-revolution and such a standard feed-per-revolution that the platen roller should be originally transported for the given time; andcontrolling the driving unit in the manner that the driving unit rotates the platen roller at the calculated driving speed.