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:
Aug. 05, 1986
Filed:
Dec. 08, 1983
Applicant:
Inventors:
Yoshiaki Kimura, Hachioju, JP;
Yasuhiko Tanaka, Tokyo, JP;
Assignee:
Konishiroku Photo Industry Co., Ltd, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
3461 / ; 73293 ; 2502 / ; 340619 ;
Abstract
An ink-jet recording apparatus having a detecting means for detecting ink pressure or an ink-residual quantity in the ink supply. The detecting means has a light shielding means coupled to the flexible diaphragm of the ink supply so as to be movable responsive to deformation of the flexible diaphragm. An ink pressure variation of -5 to -10 cm H.sub.2 O results in a diaphragm displacement of 5 um/cm H.sub.2 O to 20 mm/cm H.sub.2 O.