Ink jet print head and manufacturing procedures

B - Operations – Transporting – 41 – J

Patent

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Details

B41J 2/01 (2006.01) B41J 2/14 (2006.01) B41J 2/16 (2006.01)

Patent

CA 2101683

An ink jet print head based on the edge-shooter principle, includes parts that carry chambers which are equipped with devices for ejecting ink from each chamber to an assigned nozzle. In each chamber carrying part, a group of chambers is arranged on a side facing a middle part, and a single row of nozzles which comprise k nozzle groups (1.1, 1.2, 1.3, 1.4, ...) assigned to k chamber groups (101, 102, 103, 104, ...) lies along the edge face of a first chamber carrying part. The first nozzle group (1.1) is connected to the chamber group (101) contained in the first chamber carrying part, and the other k-1 nozzle groups (1.2, 1.3, 1.4, ...) to accessory chamber groups (102, 103, 104, ...). The chamber groups are supplied with ink from suction spaces (151, 152, 153, 154, ...) and lie in further chamber carrying parts which are arranged vertically offset. In a manufacturing process, following a pretreatment of the pane material from which the print head is made, a masking and etching of the panes is effected for all components during a parallel pane processing procedure. Individual completed components are fixed and bonded together as a module.

Tête d'impression à jet d'encre conçue selon le principe de l'éjection marginale et comprenant des pièces munies de chambres comportant chacune des dispositifs qui éjectent l'encre vers une buse désignée. Dans chacune des pièces, un groupe de chambres est disposé sur un côté faisant face à une pièce intermédiaire. Une rangée simple de groupes de buses k (1.1, 1.2, 1.3, 1.4...) assignée à des groupes de chambres k (101, 102, 103, 104...) est disposée le long de la face marginale d'une première pièce munie de chambres. Le premier groupe de buses (1.1) est raccordé au groupe de chambres (101) disposé dans la première pièce munie de chambres, tandis que les autres groupes de buses k-1 (1.2, 1.3, 1.4,...) sont raccordés à des groupes de chambres auxiliaires (102, 103, 104,...). Les groupes de chambres reçoivent de l'encre provenant d'espaces d'aspiration (151, 152, 153, 154,...) et reposent dans des pièces subséquentes déportées à la verticale. Suite au prétraitement du matériau en panneau à partir duquel la tête d'impression est fabriquée, les panneaux servant à la réalisation des éléments sont soumis à une opération parallèle de masquage et de gravure. Une fois achevés, les éléments sont fixés et liés ensemble pour former un module.

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