Patent · US Expired

Color image forming apparatus having toner and transfer sheet bearing members and image forming method thereof

US5887218A · kind A · utility

19Cited by
1References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 10, 1997
Grant dateMar 23, 1999
Priority date
Expiry dateJun 10, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/00084
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An image forming apparatus in which a toner image formed on an image bearing member is first transferred onto an intermediate transfer element and then onto a transfer member. A potential of the image bearing member is detected and a transfer bias voltage applied to the intermediate transfer element is controlled according to the potential of the image bearing member. Undesired images such as transfer blurring due to discharge at the first transfer area, and a solid image scattering and so-called crow's claw mark due to increase of resistance of the transfer member under low absolute humidities are improved.

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