Patent · US Expired

Electrographic printer device with additional color printing unit as well as method therefor

US6374072B1 · kind B1 · utility

1Cited by
1References
22Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 22, 2000
Grant dateApr 16, 2002
Priority date
Expiry dateAug 22, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/0126
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An electrographic printer device contains a first printing unit and a second printing unit, each printing unit containing at least one developer unit. A second developer unit in the second printing unit employs a coating method that works without contact, for example the toner spraying method, and inserts colored toner images into toner-free regions on the photoconductor drum.

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