Canon kabushiki kaisha (20250138450). DEVELOPING DEVICE
DEVELOPING DEVICE
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DEVELOPING DEVICE
This abstract first appeared for US patent application 20250138450 titled 'DEVELOPING DEVICE
Original Abstract Submitted
the developing device includes a first rotatable member, a first magnet, a second rotatable member, and a second magnet. when a position where on a second rotatable member surface, a magnetic flux density of the receiving pole is maximum is a point t, of positions each where the magnetic flux density of the receiving pole is a half value of the maximum, the position on an upstream side is a point hu, the position, the position on a downstream side is a point hd, an angle formed by a rectilinear line l connecting a rotation center r of the second rotatable member and the point t and a rectilinear line l connecting the rotation center r and the point hu is w�21, and an angle formed by l and a rectilinear line l connecting r and hd is w�22, the following relationship is satisfied: w�22−w�21≥0.