Printhead maintenance assembly comprising maintenance roller...

B - Operations – Transporting – 41 – J

Patent

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B41J 2/165 (2006.01)

Patent

CA 2619868

A printhead maintenance assembly for maintaining a printhead in an operable condition is provided. The maintenance assembly comprises: (a) a maintenance roller having an elastically deformable contact surface for sealing engagement with an ink ejection face of the printhead; (b) an engagement mechanism for moving the roller between a first position in which the contact surface is sealingly engaged with the face, and a second position in which the contact surface is disengaged from the face; and (c) a cleaning mechanism for cleaning the contact surface. The cleaning mechanism comprises a motor for rotating the maintenance roller, and an ink removal system for removing ink from the contact surface when the maintenance roller is rotated.

La présente invention concerne un ensemble de maintenance de tête d'impression destiné à maintenir une tête d'impression en état de fonctionnement. Cet ensemble de maintenance comprend: (a) un rouleau de maintenances possédant une surface de contact élastiquement déformable destinée à venir en contact étanche avec une face d'éjection d'encre de la tête d'impression, (b) un mécanisme de mise en contact permettant de déplacer le rouleau entre une première position dans laquelle la surface de contact est en contact étanche avec la face et une seconde position dans laquelle la surface de contact n'est plus en contact avec la face et, (c) un mécanisme de nettoyage destiné nettoyer cette surface de contact. Ce mécanisme de nettoyage comprend un moteur destiné à faire tourner le rouleau de maintenances et un système de suppression d'encre de la surface de contact lorsque le rouleau de maintenances tourne.

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