EP 0138885 B1 19880907 - ANODIZED ELECTROSTATIC IMAGING SURFACE
Title (en)
ANODIZED ELECTROSTATIC IMAGING SURFACE
Publication
Application
Priority
- US 46843583 A 19830222
- US 47817583 A 19830323
Abstract (en)
[origin: WO8403366A1] Dielectric sealing of porous anodized aluminum, in which moisture in the pores of the oxide coating formed by hard coat anodizing is removed, and the porous anodized surface then impregnated with a dielectric wax. Suitable wax sealants include carnauba and montan waxes. The anodized member (35) is preliminarily heated in order to drive off moisture and other substances from the pores; this heating process may be continued for the purposes of impregnating the pores with the wax sealant (35). Any excess material remaining on the member's surface is removed. After removing material from the member's surface, the member may be polished to a better than .5 micrometer finish. Dielectric imaging members (35, 36) fabricated using these techniques are suitably incorporated in high speed electrographic printers and copiers. One such printing system forms a latent electrostatic image on a dielectric cylinder (36) using an ion emitting print device (30); tones the image; transfers the toned image to an image receptor (50) using high pressure exerted between the dielectric cylinder (36) and a compliant transfer cylinder (48); scrapes off residual toner on the dielectric cylinder; and neutralizes any residual electrostatic image.
IPC 1-7
IPC 8 full level
C25D 11/18 (2006.01); G03G 15/24 (2006.01); G03G 15/32 (2006.01)
CPC (source: EP)
C25D 11/18 (2013.01); G03G 15/24 (2013.01); G03G 15/321 (2013.01)
Designated contracting state (EPC)
CH DE FR GB LI LU NL SE
DOCDB simple family (publication)
WO 8403366 A1 19840830; CA 1251984 A 19890404; DE 3473943 D1 19881013; EP 0138885 A1 19850502; EP 0138885 A4 19850730; EP 0138885 B1 19880907
DOCDB simple family (application)
US 8400235 W 19840221; CA 448009 A 19840222; DE 3473943 T 19840221; EP 84901160 A 19840221