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:
Oct. 19, 2021
Filed:
Sep. 02, 2016
Applicant:
Tonejet Limited, Royston, GB;
Inventors:
Andrew John Clippingdale, Cambridge, GB;
Robert James Greasty, Cambridge, GB;
Jonathan James Michael Halls, Cambridge, GB;
Assignee:
Tonejet Limited, Royston, GB;
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01); B41J 2/39 (2006.01); B41J 2/165 (2006.01);
U.S. Cl.
CPC ...
B41J 2/16552 (2013.01); B41J 2/14314 (2013.01); B41J 2/1652 (2013.01); B41J 2/16517 (2013.01); B41J 2/39 (2013.01); B41J 2202/07 (2013.01); B41J 2202/19 (2013.01);
Abstract
A method of operating an electrostatic ink jet printhead, the printhead comprising: one or more ejection tips from which, in use, ink is ejected, the one or more ejection tips defining a tip region; a printhead housing, the printhead housing defining a cavity in which the one or more ejection tips are located; the method comprising the steps of, during a printing operation, passing a vapour into the cavity to reduce evaporation of ink in the tip region.