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:
Jul. 27, 1999
Filed:
Oct. 10, 1996
Colin R Sharpe, South Elgin, IL (US);
Other;
Abstract
An ink supply system for an ink jet printing device in which the elevation of the ink reservoir is controlled as a function of the elevation of the printhead orifices. In a preferred embodiment, the ink reservoir is mounted on an elevating carriage which is mechanically linked to the printhead via a Bowden.TM. cable. The cable cooperates with a pulley on the printhead such that rotation of the printhead results in translational movement of the elevating carriage. The dimensions of the pulley are selected such that the elevational changes in the reservoir ink level correspond directly with the elevational changes in the printhead orifices. Thus, the hydrostatic pressure head at the printhead orifices remains constant as the printhead is rotated from its home position to the priming position.