EP 0780740 B1 20010926 - A device for direct electrostatic printing (DEP) comprising a printhead structure with slit aperture
Title (en)
A device for direct electrostatic printing (DEP) comprising a printhead structure with slit aperture
Title (de)
Vorrichtung zum direkten elektrostatischen Drucken mit einer Druckkopfstruktur mit Schlitzöffnungen
Title (fr)
Dispositif d'impression électrostatique directe avec une structure d'une tête d'impression avec ouvertures à fente
Publication
Application
Priority
EP 95203534 A 19951218
Abstract (en)
[origin: EP0780740A1] A DEP device is provided that comprises : a back electrode (105), a printhead structure, comprising an insulating substrate (102), a control electrode (102a) and a slit aperture (103) through which a particle flow can be electrically modulated by the control electrode (102a), a toner delivery means (101), characterised in that only on one side of said slit aperture, control electrodes (102a) are present. In a preferred embodiment the printhead structure is realized by a slit having two sides, side A (SA) and side B (SB), defined by two edges (A and B), which are formed by at least one sheet of insulating material. The insulating material has an elasticity modulus (Young's Modulus, YM) fulfilling the equation 0.1 GPa ≤ YM ≤ 10 Gpa and the edges A and B being placed with respect to each other at an angle alpha fulfilling the equation 0 DEG ≤ alpha < 45 DEG . <IMAGE>
IPC 1-7
IPC 8 full level
B41J 2/385 (2006.01); B41J 2/415 (2006.01); G03G 15/34 (2006.01); B41J 2/06 (2006.01)
CPC (source: EP)
B41J 2/4155 (2013.01); G03G 15/346 (2013.01); B41J 2002/061 (2013.01); G03G 2217/0025 (2013.01)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0780740 A1 19970625; EP 0780740 B1 20010926; DE 69522948 D1 20011031; DE 69522948 T2 20020425; JP 3237818 B2 20011210; JP H09174914 A 19970708
DOCDB simple family (application)
EP 95203534 A 19951218; DE 69522948 T 19951218; JP 35375296 A 19961218