Patent · US Expired

Image forming apparatus having a cleaning blade for removing deposited toner

US5881339A · kind A · utility

23Cited by
6References
46Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 3, 1997
Grant dateMar 9, 1999
Priority date
Expiry dateNov 3, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/1661
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In an image forming apparatus of the type including a movable belt and a cleaning blade for cleaning the belt, a toner image in the form of an exclusive line is formed on an image carrier between sheets and then transferred to the belt so as to feed toner to the edge of the cleaning blade. The toner prevents the edge of the cleaning blade from being turned over by the belt. The toner is fed to the cleaning blade in amounts different in the widthwise direction of the belt and can therefore be controlled in amount in the above direction.

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