| 摘要 |
PURPOSE:To enable a mirror image to be printed by use of a printer for general use, by providing a means for switching a normal image and a mirror image from one to the other, and a means for reversing the vertical relative moving directions of a printing head and a printing material. CONSTITUTION:It is presumed that a printing head is fixed with respect to vertical directions and a printing material is moved upward at the time of printing a normal image. When a mirror image printing switch 18 is set in a mirror image position, a moving direction-reversing circuit 19 reversely rotates an LF (line feed) motor 7, whereby the head is moved downward. In the case of a line printer, merely performing the above operation results in that characters be printed are printed in the form of mirror images inverted upside down without any change in printing information. When the printing material is rotated by 180 deg. and observed, the printed result as a whole is a mirror image. In the case of a matrix printer, a means is further provided for converting the vertical positional relationships of dots of a printing head, as compared with those in the case of printing a normal image, whereby the characters to be printed can be printed in the form of mirror images inverted upside down without any change in printing positions. |
