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US 2003/0110632 A1Published application
Magnet roll, method of manufacturing the magnet roll, and electronic equipment using the magnet roll
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorAtsushi Iwase
Life of this patent
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Abstract
A magnet roller includes a rotary sleeve having a given systematic pattern on the outer surface of the sleeve and a magnet provided in the sleeve. This structure transfers toner uniformly along the outer surface of the sleeve. A printer, for instance, employing this magnet roller can print a fine copy.
Claims24
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(Amended) A method of manufacturing a magnet roller, the magnet roller comprising:
- a rotary sleeve including a predetermined systematic pattern formed on an outer surface of the sleeve;
- and
- a magnet disposed in the sleeve,
- wherein the method comprises the steps of:
- firstly, attaching resist to the outer surface of the sleeve by printing;
- and
- secondly, providing etching to the outer surface for forming the predetermined systematic and recessed pattern on sections where no resist attaches.
4 more elements
(Amended) A method of manufacturing a magnet roller, the magnet roller comprising:
- a rotary sleeve including a predetermined systematic pattern formed on an outer surface of the sleeve;
- and
- a magnet disposed in the sleeve,
- wherein the method forms the predetermined systematic pattern with laser processing.
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Dependencies are inferred from the claim text.