Patent · US Expired

Duplex printer and method of printing to ensure desired registration of images on opposite faces of substrate web

US6285850A · kind A · utility

4Cited by
1References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 24, 2000
Grant dateSep 4, 2001
Priority date
Expiry dateAug 24, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/0119
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A duplex printer has drive motors for driving transfer surfaces carrying toner particle images to transfer stations at which the images are transferred to opposed faces of a substrate web. A web drive motor drives the substrate web through the transfer stations. Sensors sense movement of the transfer surfaces and a control device controls the drive motors in response to signals received from the sensors. Thereby desired registration between the first and second images at a desired location on the substrate web is ensured.

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