| 摘要 |
A dry development device for reproduction machines, wherein the device includes a rotating magnetic brush for distributing development powder on an image support. The image support is advanced on a planar surface which has an opening therein positioned beneath the magnetic brush. The opening has a plurality of wires stretched thereacross, which hold the image support against the brush, while allowing any development powder which might otherwise adhere to the back of the image support to fall into the opening. The wires are arranged in two groups of parallel, uniformly spaced wires with the wire groups converging and positioned symmetrically in a herringbone pattern. A scraper edge of the toner reservoir is presented against the magnetic brush at an angle substantially perpendicular to the surface of the brush.
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