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. 17, 1990
Filed:
Apr. 28, 1989
Applicant:
Inventors:
Anthony D Paton, Cambridge, GB;
Stephen Temple, Cambridge, CB3 0IN, GB;
Mark R Shepherd, Royston, Hertfordshire, SG8 7EF, GB;
Assignee:
Other;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; B41J / ; B41J / ; B41J / ;
U.S. Cl.
CPC ...
3461 / ; 346 75 ; 400126 ;
Abstract
A housekeeping manifold is provided at the end of a row of ejector apertures of a drop-on-demand printhead module. The housekeeping manifold includes upper and lower parts disposed on opposite sides of the row of ejector apertures, a trench extending between the manifold parts through which ink drops from the ejector apertures are discharged, openings between the manifold parts and the trench and a ducting arrangement for supplying environmental fluids to or exhausting such fluids from the region of said apertures by way of the manifold parts and trench.