Liquid consumption state detecting method, liquid container and ink case

Application Number: 00107639
Application Date: 2000.05.19
Publication Number: 1274646
Publication Date: 2000.11.29
Priority Information: 1999/5/20 JP 139683/99; 1999/5/27 JP 147538/99; 1999/9/10 JP 256522/99
International: B41J2/12;B41J2/175
Applicant(s) Name: Seiko Epson Corp.
Inventor(s) Name: Usui Minoru;Tsukata Kenji;Kanatani Munehide
Patent Agency Code: 11216
Patent Agent: liu jiyang
Abstract A method of detecting a consumption status of liquid contained in a liquid container, comprising steps of: preparing a detection device having a piezoelectric element and attaching the detection device on a desired position of the liquid container so that at least a part of the detection device contacting the liquid; measuring a residual vibration of the detection device; and detecting the consumption status of the liquid contained in the liquid container on the basis of a result of the measurement of the residual vibration.