Patent · US Active

Movable toner port cover member for a replaceable unit of an imaging device

US8867968B2 · kind B2 · utility

1Cited by

18References

35Claims

0Family size

Assignee

Lexmark International, Inc. · US

Inventors

John Andrew Buchanan · Lexington, US
James Anthany Carter, II · Lexington, US
Gregory Alan Cavill · Winchester, US
Nicholas Fenley Gibson · Lexington, US
Michael Craig Leemhuis · Nicholasville, US
Tyler Frederick Williams · Georgetown, US
Mark Duane Foster · Lexington, US
Thomas Wilbur Blanck · Nicholasville, US

Key dates

Filing date	Mar 15, 2012
Grant date	Oct 21, 2014
Priority date	—
Expiry date	May 24, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG03G15/0886
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A rotating cover on the developer unit of an imaging apparatus to prevent toner leaks from the toner entry port of the developer unit. When installing a toner cartridge, the cartridge contacts a surface to cause the cover to rotate to an open position, thereby exposing the toner port for receiving toner. Conversely, when the toner cartridge is removed the cover is rotated into a closed position with the aid of a torsion spring so as to seal the toner entry port of the developer unit.

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