| 摘要 |
<p>PURPOSE:To improve the printing quality by dividing an irregularly accumulated heat into an adequate number of blocks for correction, preparing an ROM table for selection of any appropriate energization time to the substrate temperature of each block and allowing data to be printed out using an optimal electroheating time for each block. CONSTITUTION:ROM tables 51 to 54 are selected by two items such as the number of electroheating steps which are now in the process of digitization shown by step counters 41 to 44 and the substrate temperature 2 of a recording head given by temperature detectors 65, 68. Timers 61 to 64 completes counting the time required for a preceding electroheating step. Data is transferred from shift registers 21 to 24 to latches 31 to 34, and at the same time, the time required for a following electroheating step which is read from the ROM tables 51 to 54 is loaded in a timer. Then the step counters 41 to 44 are further operated to reach the value of a step number for next digitization so that this process is restarted.</p> |
