Patent ID: 6663211
Filing Date: 2003-12-16
Classification: B41J

Abstract:
A device for printing paper from a pre-wound roll having an end flange of selectable diameter defining presence of a preselected characteristic in the paper, comprising:a. a frame for holding the roll and defining a path for paper transport; b. a table slidably movable along said frame; c. means for contacting said flange and movably positioning said table respecting said frame according to the contacted diameter of said flange; d. a plurality of light transmitting and blocking members fixedly connected to said table and moving along said frame unitarily with said table; e. a plurality of light sensitive cells fixedly connected to said frame and being individually positioned to receive light through or be blocked from receiving light by said blocking members according to position of said table along said frame, each combination of the number of cells receiving light and the number of cells blocked from receiving light being correlated to a position of said table relative to said frame and hence to said preselected characteristic of said paper.