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:
Jun. 19, 2001
Filed:
Jan. 22, 1998
Kazuaki Watanabe, Suwa, JP;
Seiko Epson Corporation, Tokyo-to, JP;
Abstract
A tank, containing a reaction solution, for use in an ink jet recording apparatus for depositing two liquids, that is, a reaction solution, containing a polyvalent metal salt, and an ink composition, onto a recording medium to conduct printing. This tank can solve a clogging problem of the reaction solution. A reaction solution containing a polyvalent metal salt is sealed into a reaction solution tank under reduced pressure. This prevents the reaction solution from creating a precipitate and, even after storage of the reaction solution for a long period of time, can realize good printing, especially clogging-free, stable printing A process for producing the reaction solution tank involves the steps of (a) evacuating a reaction solution reservoir through a communicating hole; (b) feeding and filling the reaction solution through the communicating hole into the reaction solution tank; and (c) evacuating the reaction solution reservoir and hermetically sealing the reaction solution reservoir in an evacuated state with a gas-impermeable sealing member.