Electrophotography – Image formation – Development
Reexamination Certificate
2011-08-30
2011-08-30
Gray, David (Department: 2852)
Electrophotography
Image formation
Development
C399S264000, C399S265000, C399S283000, C399S286000
Reexamination Certificate
active
08010024
ABSTRACT:
A developer apparatus includes a toner carrier roller having convex and concave sections formed thereon. A restriction member including an elastic abutting member having an edge part that abuts the toner carrier roller removes toner from the convex sections such that the concave sections alone carry toner. Within a restriction nip created as the toner carrier roller and the restriction member abut abutting segments where the edge part abuts on the convex sections, and opening segments where the edge part and the concave sections are opposed to each other with a gap between each other, appear alternatingly along the width direction. In the opening segments, the edge part bulges toward bottom surfaces of the concave sections beyond linear lines connecting top surfaces of two adjacent convex sections which are on both sides to the concave sections which are opposed to the edge part.
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European search report for corresponding European application 08018814.7-2209 lists the references above.
Fukumoto Takatomo
Yamada Yoichi
Bolduc David
DLA Piper (LLP) US
Gray David
Seiko Epson Corporation
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