Dielectric drum and electrostatic recording device using the sam

Details Dielectric drum and electrostatic recording device using the sam Dielectric drum and electrostatic recording device using the sam

1995-03-22

1996-07-02

Wong, Peter S.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

347153, 3461351, 346138, 428 3691, 4284722, G01O 1506

Patent

active

055327214

ABSTRACT:
It is an object of the invention to provide a dielectric drum where manufacturing costs can be reduced while keeping pressure resistance high and having an anodic oxidized film with a uniform dielectric characteristic, and also to provide an electrostatic recording device which is inexpensive and provides a high image reliability using the dielectric drum. According to the present invention, a dielectric drum includes an aluminum substrate and a dielectric layer of an anodic oxidized film on the surface of the aluminum substrate. The aluminum substrate is produced by conducting a drawing and hardening treatment M on an aluminum alloy pipe of the 5000 series alloys of the Aluminum Association. Also, the dielectric drum is used to construct an electrostatic recording device. The electrostatic recording device includes toner image forming means for forming a toner image on a dielectric drum, and pressure applying means for transferring by pressure or transferring and fixing by pressure the toner image on the dielectric drum to a member to be transferred.

REFERENCES:
patent: 3615405 (1971-10-01), Shebanow
patent: 4195927 (1980-04-01), Fotland et al.
patent: 4318755 (1982-03-01), Jeffrey et al.
patent: 4424981 (1984-01-01), Maxwell, III
patent: 4518468 (1985-05-01), Fotland et al.
patent: 4745030 (1988-05-01), Arahara et al.
patent: 4864331 (1989-09-01), Boyer et al.
patent: 5245358 (1993-09-01), Reeves

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