BEARING MEMBER FOR IMAGE FORMING APPARATUS

PROBLEM TO BE SOLVED: To improve the quality of an image by reducing shaft runout while contriving the miniaturization and the reduction of cost of this kind of a bearing member for an image forming apparatus. SOLUTION: The resin part 3 of the bearing member 2 is injection-molded by setting an elect...

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Bibliographische Detailangaben
Hauptverfasser: YAMAMOTO TETSUYA, SATOJI FUMITADA
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To improve the quality of an image by reducing shaft runout while contriving the miniaturization and the reduction of cost of this kind of a bearing member for an image forming apparatus. SOLUTION: The resin part 3 of the bearing member 2 is injection-molded by setting an electrocasting part 4 formed by electrocasting work as an insert component, and a bearing surface for rotatably supporting the shaft 21a of a photoreceptor drum 21 is constituted of the inner peripheral surface 4a of the electrocasting part 4. Similarly, the resin part 13 of the bearing member 12 is injection-molded by setting an electrocasting part 14 formed by electrocasting work as an insert component, and a bearing surface for rotatably supporting the shaft 25a of a developing roller 25 is constituted of the inner peripheral surface 14a of the electrocasting part 14. COPYRIGHT: (C)2007,JPO&INPIT