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:
Feb. 25, 1997
Filed:
Dec. 23, 1991
Bryan A Beaman, Churchville, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A non-impact printhead is formed of modules. Each module comprises a tile support that has mounted thereon a plurality of LED chip arrays and driver chip arrays for driving the LEDs. A spreader board is also mounted on the tile for distributing signals to the driver chips. A ground connection between the LEDs and the spreader board is made without relying upon electrical conductivity through the tile and a mother board which supports several tiles. Rather, a ground path is provided by a conductive layer upon the tile. In one embodiment, a via in the spreader board connects this ground path with the top surface of the spreader board. In a second embodiment, the ground path continues along a bottom surface of the spreader board to a ground strip of a bus bar.