Patent · US Expired

Image forming apparatus for enhancing the durability of a vibration preventing member and protecting a rotary unit from defective rotation

US6498917B2 · kind B2 · utility

9Cited by
14References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 29, 2001
Grant dateDec 24, 2002
Priority date
Expiry dateMay 29, 2021

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/0177
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An image forming apparatus includes a developing unit implemented as a revolver or rotary unit driven by a revolver motor, which includes a motor case. A motor support member supports the surface of the motor case at a position beneath the center of gravity of the revolver motor. The motor support member reduces a moment acting on a motor mount about the apparent center of rotation of the revolver motor due the weight of the motor to substantially zero. This configuration enhances the durability of the motor mount or vibration preventing member and thereby protects the revolver from defective rotation.

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