The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 09, 2021
Filed:
May. 29, 2019
Seiko Epson Corporation, Tokyo, JP;
Naoki Kayahara, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
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.