Global Patent Index - EP 0097954 A1

EP 0097954 A1 19840111 - Electrostatic printing process.

Title (en)

Electrostatic printing process.

Title (de)

Elektrostatisches Druckverfahren.

Title (fr)

Procédé d'impression électrostatique.

Publication

EP 0097954 A1 19840111 (EN)

Application

EP 83106283 A 19830628

Priority

US 39278882 A 19820628

Abstract (en)

An electrostatic printing process is disclosed wherein a printing roll (18, 18 min , 18 sec ) is formed by forming a latent magnetic image in a magnetic imaging member (13), decorating (14, 15) the latent magnetic image with a non-conductive magnetic toner to form a toner image, transferring the toner image to a conductive member (18, 18 min , 18 sec ) and temporarily fixing (19) the toner image to the conductive member. The toner image on the conductive member (18, 18 min , 18 sec ) is electrostatically charged (21, 22, 23), while the charge is dissipated from the remaining area of the conductive member. The charged image of magnetic toner is decorated (24, 25, 26) with an electrostatic toner comprising a colorant and a binder resin to form an electrostatic image which is transferred to a substrate (27). Pattern change is accomplished by washing off the fused toner from the conductive print roll (18, 18 min , 18 sec ) and forming a new fused toner image on it.

IPC 1-7

G03G 19/00; G03G 13/16

IPC 8 full level

G03G 15/01 (2006.01); G03G 15/09 (2006.01); G03G 15/16 (2006.01); G03G 19/00 (2006.01)

CPC (source: EP)

G03G 15/1625 (2013.01); G03G 15/6591 (2013.01); G03G 19/00 (2013.01); G03G 2215/00527 (2013.01)

Citation (search report)

Designated contracting state (EPC)

BE DE FR GB IT

DOCDB simple family (publication)

EP 0097954 A1 19840111; EP 0097954 B1 19860806; AU 1629183 A 19840105; CA 1198148 A 19851217; DE 3365133 D1 19860911; JP S5915951 A 19840127

DOCDB simple family (application)

EP 83106283 A 19830628; AU 1629183 A 19830627; CA 431043 A 19830623; DE 3365133 T 19830628; JP 11446483 A 19830627