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. 17, 2004
Filed:
Nov. 05, 2002
Per Sundström, Järfälla, SE;
Jarfalla Digital Filter Printer AB, Jarfalla, SE;
Abstract
A developing system for a bore matrix in a printer using toner in the form of a dry toner powder, and comprising a feeder brush ( ) which receives toner from a toner container ( ), a printer brush ( ) receiving toner from the toner feeder brush ( ) and transporting same through bores of a bore matrix ( ) and down to a document ( ) to be printed, and means ( ) for charging the toner particles by mechanically rubbing the toner particles ( ) against the printer brush ( ), and in which a means ( ) may be provided for ripping free the charged toner particles ( ), so that said particles form a cloud ( ) of charged toner particles ( ) adjacent the bore matrix ( ), which pass down to the document ( ) to be printed through open bores of the bore matrix ( ).