Method of manufacturing toner carrier roller, developer...

Electrophotography – Image formation – Development

Reexamination Certificate

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Reexamination Certificate

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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.

REFERENCES:
patent: 3836054 (1974-09-01), Schon
patent: 2007/0104516 (2007-05-01), Katoh et al.
patent: 2007/0110481 (2007-05-01), Yamada et al.
patent: 2007/0212088 (2007-09-01), Koike et al.
patent: 2003-057940 (2003-02-01), None
patent: 2003330262 (2003-11-01), None
patent: 2007-121948 (2007-05-01), None
patent: 2007-127800 (2007-05-01), None
patent: 2007-140080 (2007-06-01), None
patent: 2007-148195 (2007-06-01), None
patent: 2007199423 (2007-08-01), None
patent: 2007199424 (2007-08-01), None
European search report for corresponding European application 09151092.5 lists the references above.

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