Electrophotography – Image formation – Development
Reexamination Certificate
2011-04-12
2011-04-12
Hannaher, Constantine (Department: 2884)
Electrophotography
Image formation
Development
Reexamination Certificate
active
07925195
ABSTRACT:
A method of manufacturing a toner carrier roller that is shaped like a cylinder on an outer circumferential surface of which concave and convex sections for carrying toner are provided, includes: preparing a roller base member which is shaped like a cylinder; forming helix-like first grooves on the outer circumferential surface of the roller base member; and forming helix-like second grooves, which cross the first grooves, on the outer circumferential surface of the roller base member, wherein a pitch ratio of the first grooves and the second grooves is a non-integer ratio.
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patent: 2007/0110481 (2007-05-01), Yamada et al.
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European search report for corresponding European application 09151092.5 lists the references above.
Aruga Tomohiro
Maeda Masahiro
DLA Piper (LLP) US
Hannaher Constantine
Seiko Epson Corporation
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