EP 0482867 A2 19920429 - Development apparatus.
Title (en)
Development apparatus.
Title (de)
Entwicklungsgerät.
Title (fr)
Appareil de développement.
Publication
Application
Priority
US 60108890 A 19901022
Abstract (en)
An apparatus in which a latent image is developed with marking particles. The marking particles (50) are transported to the latent image by a donor roller (30). As the marking particles are being moved to the latent image, they are electrically charged by a blade (36) in contact with the donor roller. An AC potential is applied on the blade. The AC potential is operator adjustable to change the charge on the toner particles. This corrects for changes in the environment and permits the slope of the tone reproduction curve to be optimized for the latent image being developed. <IMAGE>
IPC 1-7
IPC 8 full level
G03G 15/06 (2006.01); G03G 15/08 (2006.01)
CPC (source: EP)
G03G 15/0812 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0482867 A2 19920429; EP 0482867 A3 19921119; CA 2049742 A1 19920423; JP H04260074 A 19920916
DOCDB simple family (application)
EP 91309719 A 19911021; CA 2049742 A 19910823; JP 26643091 A 19911015