Patent ID: 6270179
Filing Date: 2001-08-07
Classification: B41J

Abstract:
An inkjet printing device comprising:a drive waveform feed device for feeding drive waveforms;deform devices each of which deforms according to applied one of said drive waveforms;analog switches connected to said deform devices, respectively, for choosing the corresponding deform devices to be fed with the drive waveforms according to print data, each of said analog switches including switching elements each for selecting one of said drive waveforms fed from the drive waveform feed device;pressure chambers each of which is supplied with ink and injects the ink via a corresponding nozzle by displacing a meniscus of the ink filled therein due to deformation of the corresponding deform device which is caused in response to the selected one of said drive waveforms; andan initializing device provided for each of said analog switches to forcibly turn on one of said switching elements of the corresponding analog switch per given period, so that all the deform devices are restored to a standby state per said given period.