Global Patent Index - EP 0997308 A2

EP 0997308 A2 2000-05-03 - Hardcopy apparatus and method for providing uniform pressure to hold down media

Title (en)

Hardcopy apparatus and method for providing uniform pressure to hold down media

Title (de)

Druckgerät und Verfahren zur Erzeugung eines gleichmässigen Druckes zum Niederhalten von Druckmedien

Title (fr)

Dispositif d'impression et procédé pour produire une pression uniforme pour maintenir des medias en bas

Publication

EP 0997308 A2 (EN)

Application

EP 99102977 A

Priority

  • EP 99102977 A
  • EP 98120706 A

Abstract (en)

A hardcopy apparatus comprising a media holddown unit, having a platen (400), and a vacuum source (700) for generating negative pressure on a medium positioned on said platen (400) to keep it flat on said platen (400), the unit comprises at least two vacuum chambers (382, 383, 690, 691, 692, 693), both in air communication with the vacuum source. Each of said vacuum chambers (382, 383, 690, 691, 692, 693) can apply a negative pressure to a different portion of the medium positioned on a corresponding different region of the platen. A method for holding down a medium when placed on said platen. First the vacuum source is placed into independent air communication with a number of distinct regions of the platen, then the medium is positioned to cover one or more regions of the platen, and finally a negative pressure is applied to the back of the medium via the independent air communication. <IMAGE> <IMAGE>

IPC 1-7 (main, further and additional classification)

B41J 13/22

IPC 8 full level (invention and additional information)

B41J 13/00 (2006.01); B41J 11/00 (2006.01); B41J 13/22 (2006.01); B65H 29/24 (2006.01); B65H 29/70 (2006.01)

CPC (invention and additional information)

B41J 11/0085 (2013.01); B41J 13/22 (2013.01); B41J 13/226 (2013.01)

Designated contracting state (EPC)

DE ES FR GB IT NL

EPO simple patent family

EP 0997308 A2 20000503; EP 0997308 A3 20001025; EP 0997308 B1 20090204; JP 2000135828 A 20000516

INPADOC legal status


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