Electrostatic writing head having a head member of multiple join

Details Electrostatic writing head having a head member of multiple join Electrostatic writing head having a head member of multiple join

1996-12-20

1998-09-29

Le, N.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

B41J 239, B41J 2395

Patent

active

058151893

ABSTRACT:
A writing head suitable for use in an electrostatic marking device includes a head member composed of multiple joined head member sections. The ability to join sections enables the writing head to be built in a wide variety of lengths. The writing head also includes a set of first surface conductive pads permanently fixed to a first surface of the first head member and disposed in a lengthwise row, and a set of second surface conductive pads permanently fixed to the second surface of the first head member. Each second surface conductive pad is paired with one of the first surface conductive pads, and the pair of pads is electrically connected by way of a conductive via extending through the first head member. A plurality of conductors is disposed on the first head member in a substantially equally spaced and parallel relationship, with one end of each conductor being permanently connected to a respective one of the first surface conductive pads. The other end of each conductor, referred to as a nib, being exposed in at least one line at the first edge of the first surface and lying in a plane perpendicular to the first surface, to form the nib line. The conductive pads may be arranged in novel arrangements that provide great flexibility in design in order to accommodate a wide variety of writing head pitches and lengths. The lateral edges of sections to be joined are cut to have a contour to accommodate a specific novel pad arrangement.

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