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:
Nov. 27, 2018
Filed:
Jun. 19, 2017
Seiko Epson Corporation, Tokyo, JP;
Yasunori Onishi, Shiojiri, JP;
Takashi Ozawa, Shiojiri, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A liquid supply device includes: a force sensor which outputs an output value corresponding to a force of expansion of a detection target site of a blockage detection tube communicating with a liquid election unit for ejecting a liquid; a pump for sending out a liquid in the blockage detection tube toward the liquid ejection unit; and a control unit which stops an operation of the pump when the output value reaches a threshold. The control unit decides the threshold, using, as a reference value, the output value acquired when a predetermined condition is satisfied including that the detection target site is filled with the liquid and that the pump is stopped.