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. 17, 1986
Filed:
May. 06, 1985
Applicant:
Inventor:
Edward F Mayer, San Jose, CA (US);
Assignee:
RICOH Systems, Inc., San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346 75 ; 346-11 ; 3461 / ;
Abstract
An ink liquid supply apparatus is provided for an ink jet printing apparatus which maintains the concentration of ink in the system at a constant value and allows utilization of an ink which contains a non-water soluble dye, resulting in a more permanent, quicker drying ink. The ink liquid supply apparatus functions to maintain the ink concentration constant by utilizing an ink emulsion which is in complete equilibrium with a hydrocarbon liquid and a water supply.