Arrangement for an ink-jet printer head composed of individual ink printer modules

US5850240A · kind A · utility

Assignee

• Francotyp-Postalia GmbH · DE

Inventors

• Ralf Kubatzki · Berlin, DE
• Wolfgang Thiel · Köngen, DE
• Junming Zhang · Berlin, DE

Key dates

• Filing date: Nov 8, 1995
• Grant date: Dec 15, 1998
• Expiry date: Nov 8, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B41J2202/20
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

An ink-jet printer head is composed of stacked ink printer modules operating according to the edge-shooter principle and each equipped with plate-shaped piezoelectric actuators. The ink-jet printer head is for use in small, fast printers, suitable for use in a franking machine wherein a large number of nozzles are required. Plate-shaped spacer parts between the ink printer modules are structured such that they serve both for assuring the required spacing between neighboring modules as well as for setting an offset of the nozzle apertures of the neighboring ink printer modules relative to one another. To that end, the spacer parts are provided with registration elements at both sides that engage into allocated recesses of the ink printer modules. Each ink printer module also has electrical interconnects for connection to a driver circuit. In order to suffice with only one connector array for connection to the driver circuit, interconnects are extended, for each module, from its outer diaphragm plate surface over the lateral surfaces of the module into its other outer diaphragm plate surface.