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:
Jan. 25, 2000
Filed:
Jun. 09, 1997
Bengt Bern, Molndal, SE;
Array Printers AB, , SE;
Abstract
A direct electrostatic printing method and apparatus decrease the adhesion force of toner particles on a toner particle source. The method includes the steps of coating the toner particle source with a plurality of layers of toner particles and vibrating the toner particle source so that the toner particles break up to form one fluidised layer of toner. The toner particle supply apparatus includes a toner feed source supplying toner particles to a rotating developer sleeve to form a multilayer coating of toner particles on the developer sleeve. A vibration generating device is arranged adjacent to, or on a surface of the developer sleeve to break up the toner particles to form one fluidised layer of toner.