Global Patent Index - EP 0241459 A4

EP 0241459 A4 19890711 - ELECTROSTATIC IMAGING BY MODULATION OF ION FLOW.

Title (en)

ELECTROSTATIC IMAGING BY MODULATION OF ION FLOW.

Title (de)

ELEKTROSTATISCHE BILDFORMUNG DURCH IONENFLUSSMODULIERUNG.

Title (fr)

IMAGERIE ELECTROSTATIQUE PAR MODULATION DU FLUX D'IONS.

Publication

EP 0241459 A4 19890711 (EN)

Application

EP 85905352 A 19851015

Priority

US 8501989 W 19851015

Abstract (en)

[origin: WO8702451A1] Method and apparatus for ion projection electrographic imaging using a self-limiting discharge ion source (10). A pool of ions is generated by a high voltage time-varying potential (17) between two electrodes (14 and 18) separated by a solid dielectric (16); ions are extracted by means of an electrical field between one of the electrodes and a further electrode member (160). An apertured ion-modulating plate (20) is interposed between the ion source (10) and an image receptor surface (150) in order to modulate the cross-section of ion flow, thereby forming a desired electrographic image. This device enjoys the advantages of high print uniformity, simplicity of construction, and reliable, durable operation.

IPC 1-7

G01D 15/06

IPC 8 full level

B41J 2/415 (2006.01); G03G 15/05 (2006.01); G03G 15/32 (2006.01)

CPC (source: EP)

G03G 15/323 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

WO 8702451 A1 19870423; EP 0241459 A1 19871021; EP 0241459 A4 19890711; JP S63501555 A 19880616

DOCDB simple family (application)

US 8501989 W 19851015; EP 85905352 A 19851015; JP 50474885 A 19851015