| 摘要 |
PURPOSE:The means for inkjet recording by which a phase of an electrification signal is finely digital processed and stabilized charge is given to a finely controlled ink grain. CONSTITUTION:When a counter 21 and 24 are coincided during non-printing, a coincident signal D is output from a comparison circuit 22 and certain value is set to a shift register 29. The value is shifted by a clock 8f, then the output E is input to ''And'' gate 36 and converted to the analogue voltage by a D-A converter 38 through a data selector 37 in which the output of a gate 36 is changed by a printing signal S and is added to an electrification electrode 4 through an amplifier 10. The charge electrified to the ink grain by an electrified signal F is detected by a detector 8 and the signal is input to a binary circuit 28 through an amplifier 12, then the output J is input to a shift register 27 by a phase change signal G. By the method, the detected phase is changed in turn and made a round and the electrified result of each phase is memorized to a register 27. The result is input to a phase determining circuit 26 for the particlization and the particlization phase is memorized to a register 25. |
