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:
Aug. 13, 2013
Filed:
May. 05, 2011
Alfred Zollner, Eitting, DE;
Alfred Zollner, Eitting, DE;
OcéPrinting Systems GmbH, Poing, DE;
Abstract
In a method or system for regulation of real values of toner concentration and fill level in a mixing unit to predetermined desired values in a developer station of an electrographic printing apparatus, the real value of the toner concentration in the mixing unit is adjusted with a first control unit by supplying toner concentrate from a first reservoir. A desired toner concentrate value is determined from the predetermined desired values of the toner concentration and the fill level. A real concentrate value is also determined from the real values of the toner concentration and the fill level measured in the mixing unit. With the first control unit, a feed of toner concentrate into the mixing container is regulated depending on a difference between the real toner concentrate value and the desired toner concentrate value. The real value of the fill level in the mixing unit is also adjusted with a second control unit by supplying carrier fluid from a second reservoir. A desired carrier fluid value is determined from the predetermined desired values of the toner concentration and the fill level. A real carrier fluid value is also determined from the real values of the toner concentration and the fill level measured in the mixing unit. With the second control unit, a feed of carrier fluid into the mixing unit is regulated depending on a difference between the real carrier fluid value and the desired carrier fluid value.