Cleaning brush for electrostatic copiers, printers and the like
AssigneeSchlegel Corporation
InventorDonald W. Karal
Life of this patent
Estimating the term…
Abstract
A cleaning brush for dry electrostatic copiers and printers is provided with two or more types of bristles, one of which is made from a conductive material, the other types to be made from non-conductive materials; the conductive bristles are all of equal or shorter length in relationship to the non-conductive bristles.
Claims17
A cleaning brush for removing particles from a photosensitive surface, some of which particles are electrically conductive, comprising a first type of bristles of a selected length made from electrically non-conductive material and a second type of bristles which are shorter than said bristles of said selected length and which are made of an electrically conductive material, both types of said bristles being formed with a fabric base with the bristles of one type intermingled with the bristles of the other type, said fabric base being mounted on a support means, said support means being electrically conductive and switch means being provided for changing the electrical polarity of said support means between positive, neutral and negative polarity.
A cleaning brush for removing particles from a photosensitive surface, some of which particles are electrically conductive, comprising a first type of bristles of a selected length made from electrically non-conductive material and a second type of bristles which are shorter than said bristles of said selected length and which are made of an electrically conductive material, both types of said bristles being formed with a fabric base with the bristles of one type intermingled with the bristles of the other type, said fabric base being mounted on a support means, said support means being electrically conductive and being connected to an electrical ground.
Dependencies are inferred from the claim text.