Patent · US Expired

Image forming device and detachably loaded process unit

US6751428B2 · kind B2 · utility

40Cited by
23References
46Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 13, 2002
Grant dateJun 15, 2004
Priority date
Expiry dateSep 13, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2221/1884
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A developing unit is detachably mounted on a photosensitive unit to form a combined unit called a process unit. In use, the process unit is loaded into an electrophotographic image forming device. A rotational shaft of the photosensitive drum projects out from a photosensitive unit. When the process unit is loaded into the image forming device from a top open space, both ends of the rotational shaft are engaged with a pair of guides formed in side walls of the image forming device and guided down along the guides. The process unit is accommodated in an accommodating section when both ends of the rotational shaft have been brought into abutment with stops at the ends of the guides and a trailing end of the process unit is rotated downward about the rotational shaft.

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