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:
May. 08, 2001
Filed:
Apr. 22, 1998
Agfa-Gevaert, Mortsel, BE;
Abstract
A device for direct electrostatic printing (DEP) is provided comprising a device having an external surface carrying toner particles for generating a flow of toner particles to an image receiving member and a printhead structure, having two major faces, interposed in the flow of toner particles for image-wise modulating this flow, wherein the external surface moves in a direction A and the printhead structure is kept at a constant distance, D, from that external surface by spacing elements forming an angle between 45° and 0° with direction A and being located at a distance d from each other such that 1 cm≦d≦50 cm. In a preferred embodiment the spacing elements are located at a distance d such that 5 cm≦d≦35 cm and the constant distance D is kept between 25 and 500 &mgr;m.