| 摘要 |
A multicolour matrix print head (1) having piezoelectrically driven ink droplet ejectors (5) grouped together in a fan shape and having a nozzle plate (2) bearing droplet ejection apertures. To prevent mixtures of ink upstream and downstream of the nozzle plate (2), the latter is bonded to the outlet end side of the matrix print head (1) with the aid of an adhesive film, which acts on both sides and in which apertures are formed which surround the ejection apertures with a larger diameter, and its free surface is coated with a material for inhibiting wetting. The invention is used in multiple-channel compensation printers. <IMAGE>
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