| 摘要 |
PURPOSE:To provide the titled system good in the utilization efficiency of a memory region of modifying data line buffer and capable of reducing the volume thereof, wherein line buffer for printing modifying data accommodates plural printing modifying data in the memory region of one address. CONSTITUTION:The memory region of each one byte of modifying line buffer 3 is divided into upper four bits and lower four bits and the upper four bits are corresponded to the odd number addresses of a printing data while the lower four bits to the even number addresses thereof. By this constitution, two bytes of printing data buffer 2 can be corresponded to one byte of the modifying data line buffer 3. |
