Developer unit

Details Developer unit Developer unit

1991-01-10

1992-07-28

Grimley, A. T.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

355245, 355251, G03G 1509

Patent

active

051332833

ABSTRACT:
A developer unit which includes a developer tank housing a developing roller including a sleeve and a magnet member both rotatable, wherein the magnet member is rotated longer than the sleeve, and wherein the rotating direction of the magnet member is opposite to that occurring when the sleeve and the magnet member rotate simultaneously. This strengthens the stirring force for the developer, thereby enhancing the chargeability of the toner and maintaining a desired image density.

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