Photoreceptor drum substrate and a method of manufacturing the s

Details Photoreceptor drum substrate and a method of manufacturing the s Photoreceptor drum substrate and a method of manufacturing the s

1992-03-27

1994-05-31

Rosenbaum, Mark

Roll or roller

Single annular member, per se

Specific metallic composition

G03G 0510

Patent

active

053165365

ABSTRACT:
A photoreceptor drum substrate comprising a drum of aluminum or aluminum alloy polished at the surface by centerless polishing. The photoreceptor drum substrate is manufactured by applying extrusion to a blank made of aluminum or aluminum alloy, then applying drawing to obtain a pipe material with less than 0.1% of bending to the entire length and satisfying the relation for wall thickness t, outer diameter .phi. and yield strength .sigma..sub.0.2, t.sup.2 .times..sigma..sub.0.2 /.phi..gtoreq.0.2 and then applying centerless polishing to the surface of the drum.

REFERENCES:
patent: 3937571 (1976-02-01), Kizulik et al.
patent: 4207059 (1980-06-01), Gaitten et al.
patent: 4631809 (1986-12-01), Yokoi
patent: 4914478 (1990-04-01), Yashiki

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