Patent · US Expired

Developer unit with cleaning element

US6339686B2 · kind B2 · utility

6Cited by

6References

42Claims

0Family size

Assignee

SHARP KABUSHIKI KAISHA · JP

Inventors

Takayuki Yamanaka · Tenri, JP
Atsushi Inoue · Irvine, US
Eiichi Kido · Nara, JP
Mikie Kobayashi · Uda, JP
Shigeyuki Wakada · Yamatokōriyama, JP
Jitsuo Masuda · Yamatotakada, JP
Toshihide Ohgoshi · Nara, JP
Hiroshi Tatsumi · Osaka, JP
Masahiro Sakai · Nagoya, JP

Key dates

Filing date	Dec 28, 2000
Grant date	Jan 15, 2002
Priority date	—
Expiry date	Dec 28, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG03G15/0812
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A cleaning element is arranged on the backside of the toner layer metering blade, i.e., the side opposite to the surface in contact with the developer support, in order to prevent the cleaning element from damaging the blade surface and the abutment surface of the metering blade against the developer support. This cleaning element is frictionally moved across the backside of the toner layer metering blade to remove stuck toner from the toner layer metering blade or prevent occurrence of buildups.

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