EP 0000671 A2 19790207 - Improved electrophotographic apparatus and method for use with electrophotosensitive toner.
Title (en)
Improved electrophotographic apparatus and method for use with electrophotosensitive toner.
Title (de)
Elektrophotographisches Gerät und Verfahren zur Verwendung von elektrophotoleitfähigem Toner.
Title (fr)
Appareil électrophotographique et procédé utilisant des particules de vireur électrophotoconductrices.
Publication
Application
Priority
US 82096077 A 19770801
Abstract (en)
Improved electrophotographic apparatus and method for use with electrophotosensitive toner are disclosed for electrophotographic imaging. Improved image density, color separation and toner background depositation levels are achieved by triboelectrically charging a dry, powdered, electrophotosensitive toner by interaction with an applicator, e.g., a magnetic brush 12 Figure 1, and then moving such toner into contact with an oppositely-charged electrode member 2. Upon exposure of a light image of an original at the interface between the toner and image electrode, the unexposed toner particles transfer to the image electrode and the exposed particles are discharged and not deposited on that member. A positive reproduction of the original is thus formed.
IPC 1-7
IPC 8 full level
G03G 9/08 (2006.01); G03G 13/01 (2006.01); G03G 15/08 (2006.01); G03G 15/24 (2006.01); G03G 15/34 (2006.01)
CPC (source: EP)
G03G 9/08 (2013.01); G03G 13/016 (2013.01); G03G 15/24 (2013.01); G03G 15/344 (2013.01)
Designated contracting state (EPC)
BE CH DE FR GB NL
DOCDB simple family (publication)
EP 0000671 A2 19790207; EP 0000671 A3 19790221; JP S5434835 A 19790314
DOCDB simple family (application)
EP 78300229 A 19780801; JP 9408378 A 19780801