Patent · US Expired

Transfer system

US4506971A · kind A · utility

7Cited by
4References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 22, 1978
Grant dateMar 26, 1985
Priority date
Expiry dateNov 22, 1998

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/169
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

To minimize or eliminate a blurred image in xerographic reproduction prior to transfer, a developed image on a charged photoreceptor is first exposed to light to at least substantially discharge the background around the image and to reduce the charge on the photoreceptor holding the image on the photoreceptor, and then a charge opposite to the polarity of the charged photoreceptor is deposited onto the image and photoreceptor. This produces a very stable image for transfer since a very strong holding force is produced to hold the image in place as the image enters a transfer station.

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