| 摘要 |
PURPOSE:To obtain an inkjet recorder with a high printing position accuracy by advancing the completion of counting by a timer circuit by a time delay T1 due to the time constant of a hard filter and by an ink flying time T2 to improve deviation in the writing position. CONSTITUTION:A detection signal 3 for an object to be printed is reported to a PiA4 as interrupt signal delayed by a time T1 after a sensor 13 for the object being printed starts operation. The PiA4 reports to a CPU1 on the generation of the interrupt and the CPU1 directs a timer circuit 7 to strat operation 4. A correction circuit 14 brings in a basic clock 1 from an oscillator 15 and a speed detection signal 2 from a speed detection circuit 6 simultaneously with the operation of the sensor 13 for the object being printed and reports the correction value for the counting completion timing of the timer circuit 7 to the PiA4, which transmits the correction value from a correction circuit 14 to the timer circuit 7. Thus, the counting completion timing of the timer circuit 7 is corrected according to the moving speed of an object to be printed 12 based on the delay time T1 due to the time constant of a hard filter 5 and an ink flying time T2, printing can be started at the specified writing position. |
