Developer module with electromagnetic shutter
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United States of America Patent
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-
Oct 8, 1996
Grant Date -
N/A
app pub date -
May 26, 1995
filing date -
May 26, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electromagnetic shutter (40) is comprised of two poles, a south pole (42) and a north pole (44) that are disposed above the surface of a delivery roller element (32). The delivery roller element (32) rotates about a fixed magnet (30) that has various poles. The south pole (42) of the electromagnetic shutter (40) is aligned proximate to the one of the north poles of the magnet (30). When the electromagnetic shutter (40) is activated with the windings (48) and (50) or winding (48) only, the shutter will form a magnetic dam (79) of toner particles which will effectively prevent passage of the toner particles thereby.
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