Patent · US Expired

Image forming apparatus that recovers waste toner inside thereof

US7221887B2 · kind B2 · utility

14Cited by
2References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 20, 2005
Grant dateMay 22, 2007
Priority date
Expiry dateJul 3, 2025

Classification

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

Abstract

An image forming apparatus that transfers a toner image on a photosensitive element to a recording medium includes a transfer unit that includes a transfer member in a form of an endless belt pressed against an outer surface of the photosensitive element, and that is detachable from a main unit of the image forming apparatus; a first cleaning unit that cleans residual toner on the transfer member; and a waste toner receptacle that collects the residual toner cleaned by the first cleaning unit. The waste toner receptacle is arranged in an inner circumference of the transfer member. The waste toner receptacle is held inside the main unit, so that the transfer unit is detachable from the main unit.

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