Array Printers Ab

Array Printers Publ. Ab

Urban Albinsson

Flexible support apparatus for dynamically positioning control units in

A print head structure includes a support device which supports a flexible control unit in a predetermined position in the print head structure. The support device is in the form of a rigid trough-shaped frame having a longitudinal dimension and a transverse dimension and further having two longitudinally extending side walls. The support device further has a bottom portion between the two side walls, an outer surface and an inner surface. A longitudinally extending slot is provided in the bottom portion of the support device. The slot extends through the support device between the inner surface and the outer surface. The support device further includes a fastener for maintaining the flexible control unit in contact with the bottom portion of the support device. The flexible control unit bridges the slot in the bottom portion.

Device and a method for positioning an array of control electrodes in a

A printhead structure for direct electrostatic printing having a back electrode and a particle supplying unit. The particle supplying unit conveys charged particles to a particle source positioned adjacent to the back electrode. A flexible control unit interposed between the back electrode and the particle supplying unit converts a stream of electronic signals, defining image information, into a pattern of electrostatic fields that within a predetermined print area of the print head structure selectively permit or restrict the transport of said charged particles from the particle source toward the back electrode. The flexible control unit is positioned and maintained in a spaced relation to the particle source. The flexible control unit is aligned with the particle source and the distance between a surface of the flexible control unit and the particle source is adjustable. Alignment edges are individually adjustable in a direction perpendicular to a surface of the flexible control unit, to increase or decrease the relative distance between the surface of the flexible control unit and the particle source.

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Molndal, Sweden

Urban Albinsson