Eastman-kodak Company

James Ora Williams

Brian J Joseph

Magnetic brush developer apparatus for selectively developing an electrostatic charge pattern on a member by contacting the member with particulate magnetic developer material. The apparatus includes an applicator for transporting developer material in juxtaposition with such member. An electromagnet is operatively associated with the applicator for establishing developer nap bristles on the applicator when energized. The electromagnet is selectively energized to establish nap bristles to develop a selected electrostatic charge pattern with developer material and deenergized to avoid development of any non-selected electrostatic charge pattern.

Magnetic brush developer apparatus

A magnetic brush developing apparatus has a partitioned storage hopper which receives developer material returned from a transport roller in a developer station. Partitions in the hopper direct the flow of such material in one direction. A single auger receives such material when it approaches one end of the hopper and moves it in the opposite direction to the other end of the hopper. Material is metered from the hopper to a development roller and then to the transport roller.

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Hilton, NY, United States of America

James Ora Williams