Coating apparatus – With means to apply electrical and/or radiant energy to work... – With electromagnetic and/or electrostatic removal of...
Patent
1991-01-14
1992-07-14
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
051293579
ABSTRACT:
A magnet is disposed stationarily in a rotatable developing sleeve. The magnet at least has a developing magnetic pole and a conveying magnetic pole disposed adjacent to it and downstream of it. In the magnetic flux density distribution of the conveying pole, an inflection point is provided upstream of the maximum magnetic flux density position in the magnetic flux density distribution.
The point of inflection is defined as the point where the secondary differentiation of the magnetic flux density Br (gauss), which is .delta..sup.2 Br/.delta..sup.2 .THETA., equals zero. The result of setting the inflection point to such a position is an improvement of developer conveying power.
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patent: 5070812 (1991-12-01), Yamaji
Barlow, Jr.,
Canon Kabushiki Kaisha
Grimley A. T.
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