EP 0763785 A1 19970319 - A DEP (Direct Electrostatic Printing) device using gas stream to provide a toner cloud
Title (en)
A DEP (Direct Electrostatic Printing) device using gas stream to provide a toner cloud
Title (de)
Eine direkte elektrostatische Druckeinrichtung, die einen Gasstrom zur Bereitstellung einer Entwicklerwolke benutzt
Title (fr)
Dispositif d'impression électrostatique directe (DEP) utilisant un courant de gaz pour obtenir un nuage de rélévateur
Publication
Application
Priority
- EP 96202316 A 19960820
- EP 95202487 A 19950914
Abstract (en)
A DEP device is provided that comprises a back electrode (105), a printhead structure (106), an array of printing apertures (107) in the printhead structure (106) through which a particle flow can be electrically modulated by a control electrode (106a), a toner delivery means (101), presenting a cloud (100) of dry toner particles in the vicinity of the apertures (107), characterised in that the toner cloud (100) is formed in the vicinity of the apertures (107) by means of a gas stream. The toner cloud is formed by detaching toner particles from a charged toner conveyer by the gas stream, or by forming a fluidized bed of toner particles. <IMAGE>
IPC 1-7
IPC 8 full level
G03G 15/34 (2006.01)
CPC (source: EP)
G03G 15/346 (2013.01); G03G 2215/0621 (2013.01)
Citation (search report)
- [XAY] EP 0464741 A2 19920108 - XEROX CORP [US]
- [YA] US 4777106 A 19881011 - FOTLAND RICHARD A [US], et al
- [A] US 4154195 A 19790515 - MUGRAUER HUBERT [DE]
- [YA] PATENT ABSTRACTS OF JAPAN vol. 018, no. 405 (P - 1778) 28 July 1994 (1994-07-28)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 96202316 A 19960820