Printer and printing method

摘要

A lateral edge of a color thermosensitive recording paper in the main scan direction is detected. An edge heating element closest to the lateral edge is specified. The distance W between the edge heating element and the lateral edge of the color thermosensitive recording paper is detected. The proportion of the distance W to the width Wt of the heating element is calculated. Recording density of the edge heating element is lowered according to the proportion. The boundary between the edge of the recording paper and the print image is blurred.