Invention Grant
- Patent Title: Printing apparatus and voltage determination method
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Application No.: US16424591Application Date: 2019-05-29
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Publication No.: US10913268B2Publication Date: 2021-02-09
- Inventor: Naoki Kayahara
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SEIKO EPSON CORPORATION
- Current Assignee: SEIKO EPSON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Global IP Counselors, LLP
- Priority: JP2018-104420 20180531
- Main IPC: B41J2/045
- IPC: B41J2/045

Abstract:
A printing apparatus includes a chip including a nozzle, and a control unit. The control unit is configured to perform printing on a medium by applying to the chip a predetermined voltage using a first driving waveform for discharging a small dot, judge, based on a density and a target density of the dot printed on the medium, whether the target density is attainable by a voltage change within an adjustable voltage range, and determine, in a case where the target density is not attained even when a voltage of an upper limit value of the adjustable voltage range is applied using the first driving waveform, an actual voltage to be used during final printing, with the driving waveform being changed over to a second driving waveform for discharging a large dot.
Information query
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