Browse Prior Art Database

TONER FILTER

IP.com Disclosure Number: IPCOM000023404D
Original Publication Date: 1977-Aug-31
Included in the Prior Art Database: 2004-Mar-30
Document File: 2 page(s) / 241K

Publishing Venue

Xerox Disclosure Journal

Abstract

A toner filter arrangement adapted for use in a cleaning station of a xerographic reproduction machine whereby foreign matter and other contaminants are removed from residual toner prior to its collection in a disposable or reusable container or return to the developer station. The filter arrangement includes a housing 101 having an input opening 104 through which removed toner enters and an output opening 102 through which filtered toner falls by gravity. The removed toner may be transported into the housing by an auger 56 located in communication with the opening 104. The housing also includes a spiral brush 108 mounted for rotation on a shaft 107 cen-trally located within the housing and a stationary open mesh screen 105 coaxially located with respect to the shaft, a small space being provided between the brush fibers and the screen. Rotation of the brush 108 operates to sift toner through the screen 105 to the outlet 102 of the filter housing while concurrently moving the toner from the input opening toward the discharge opening.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

XEROX DISCLOSURE JOURNAL

TONER FILTER
John S. Bernhard

Proposed Classification
U.S. Cl. 96/1.4

mt. Ci. G03g 13/14

A toner filter arrangement adapted for use in a cleaning
station of a xerographic reproduction machine whereby foreign
matter and other contaminants are removed from residual toner
prior to its collection in a disposable or reusable container
or return to the developer station. The filter arrangement
includes a housing 101 having an input opening 104 through
which removed toner enters and an output opening 102 through
which filtered toner falls by gravity. The removed toner may
be transported into the housing by an auger 56 located in
communication with the opening 104. The housing also includes
a spiral brush 108 mounted for rotation on a shaft 107 cen-
trally located within the housing and a stationary open mesh
screen 105 coaxially located with respect to the shaft, a
small space being provided between the brush fibers and the
screen. Rotation of the brush 108 operates to sift toner
through the screen 105 to the outlet 102 of the filter housing
while concurrently moving the toner from the input opening
toward the discharge opening.

/06

I,,

Volume 2 Number 4 July/August 1977 9

[This page contains 1 picture or other non-text object]

Page 2 of 2

:j,,

                 XEROX DISCLOSURE JOURNAL
10 Volume 2 Number 4 July/August 1977

[This page contains 1 picture or other non-text object]