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Machine translation
1. (WO1981003387) CHARGER FOR ELECTROPHOTOGRAPHIC SURFACES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/003387    International Application No.:    PCT/AU1981/000056
Publication Date: 26.11.1981 International Filing Date: 12.05.1981
IPC:
G03G 15/02 (2006.01), H01T 19/00 (2006.01)
Applicants:
Inventors:
Priority Data:
3512/80 13.05.1980 AU
Title (EN) CHARGER FOR ELECTROPHOTOGRAPHIC SURFACES
(FR) CHARGEUR POUR SURFACES ELECTRO-PHOTOGRAPHIQUES
Abstract: front page image
(EN)A charger for electrophotographic surfaces wherein a pair of corona wires (1 and 2) are spaced apart parallel to but spaced from the surface (4) which is to be charged and have the corona-producing voltage applied between them, the wires preferably being enclosed in a shield (5) and there being a control electrode (3) behing the surface being charged, the electron field preferably being applied intermittently at a selected frequency by out-of-phase supply means comprising transformers (20, 21), transistors (22, 23) and cross coupling condensors (24, 25), the control electrode being earthed or having a potential applied thereto by means such as a battery (18 or 32).
(FR)Chargeur pour surfaces electro-photographiques ou une paire de fils de couronne (1 et 2) sont espaces parallelement entre eux mais sont espaces de la surface (4) qui est a charger et la tension de production de la couronne est appliquee entre eux, les fils etant de preference enfermes dans un ecran de protection (5), une electrode de commande (3) etant placee derriere la surface chargee, le champ electronique etant de preference applique par intermittences a une frequence selectionnee par des moyens d"alimentation dephases comprenant des transformateurs (20, 21), des transistors (22, 23) et des condensateurs de couplage croises (24, 25) l"electrode de commande etant mise a la terre ou ayant un potentiel applique sur elle a l"aide d"une batterie (18 ou 32).
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)