| 摘要 |
<p>PURPOSE:To prevent the life of a thermal head from being shortened even when a diagram containing an outline for specifying plotting area is drawn. CONSTITUTION:A CAD data containing outline and diagram (plotter command) is stored in an input buffer 1 and an internal (intermediate) data obtained at an analyzing section 2 is shifted to the line direction of a thermal head based on a reference point P from a reference point changing section 1.2 at an outline- diagram data shift section 3. A diagram data developed to a bit map data at a bit map developing processor 4 is stored in a frame buffer 5. The diagram data is read in sequence by a controller 6 and supplied to a shift register 8 in sequence. A roll paper exchange detector 11 detects that roll paper is exchanged. The reference point changing section 12 changes the reference point P stored in a memory 10 when the exchange of the roll paper is detected, so as to shift the outline-diagram data to the line direction.</p> |
