| 摘要 |
A unit (20) controlling a printer (1) includes: a unit (22) supplying a variable-period strobe signal, which is a strobe signal controlling an energization time of heating elements (11) and whose period is variable when forming an image with m tones, (m-1) times to a thermal head; a unit (21) supplying energization data, which is energization data controlling energization of the respective heating elements according to the strobe signal and includes (m-1) components for each of the heating elements, divided into the (m-1) times for each line to the thermal head; and a unit (23) supplying a latch signal with a variable period and latches components of the next energization data, to the thermal head in synchronization with the variable-period strobe signal. |
