Patent · US Expired

Image forming apparatus

US6993263B2 · kind B2 · utility

1Cited by
2References
4Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 18, 2004
Grant dateJan 31, 2006
Priority date
Expiry dateAug 12, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/02
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An image forming apparatus includes a charging unit for charging an image bearing member, an image forming unit for forming a toner image on the image bearing member that has been charged, and a cleaning unit for contacting the image bearing member to clean the surface of the image bearing member. In the apparatus, a ratio of a period wherein the image bearing member is moved without being charged to a period wherein the image bearing member is moved while being charged, is controlled to be a predetermined value or greater.

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