The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 08, 2019

Filed:

Sep. 25, 2017
Applicants:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Toshiba Tec Kabushiki Kaisha, Shinagawa-ku, JP;

Inventors:

Donald W. Stafford, Lexington, KY (US);

William M. Connors, Lexington, KY (US);

Assignees:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Toshiba TEC Kabushiki Kaisha, Shinagawa-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 21/20 (2006.01); G03G 21/00 (2006.01);
U.S. Cl.
CPC ...
G03G 21/206 (2013.01); G03G 21/0011 (2013.01); G03G 21/0076 (2013.01);
Abstract

A system and method for removing toner and particles from a developer cavity of an electrostatic process unit of a toner-based printer includes a filter displaced over at least a portion of the developer cavity, and a fan configured to draw a volume of air through the filter from the portion of the developer cavity adjacent to the filter. The fan is coupled to the photoconductive drum of the electrostatic process unit and rotates when the photoconductive drum rotates. The rotation of the fan generates a negative pressure on the filter which draws the volume of air through the filter. The filter removes airborne toner and particles from the volume of air. The toner and particles are removed from the electrostatic process unit by an associated auger.


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