Patent · US Expired

Apparatus for applying and fixing a magnetizable powder on a charged sheet

US4002145A · kind A · utility

0Cited by

14References

29Claims

0Family size

Assignee

Develop KG Dr. Eisbein & Co.

Inventors

Kurt Moser
Helmut Wegmann · Gerlingen, DE
Reinhold Weigele · Ditzingen, DE

Key dates

Filing date	Aug 16, 1974
Grant date	Jan 11, 1977
Priority date	—
Expiry date	Aug 16, 1994

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S222/01
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A copying machine arrangement having an apparatus for applying and fixing a magnetizable powder on a coated and electrostatically charged paper sheet to fix the image thereon. The apparatus includes conveying means for carrying the charged paper to a surface element positioned below a powder dispensing structure wherein a magnetic roller will transfer the carbon powder to the sheet surface and pressing rollers are provided for setting the powder on the paper sheet.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.