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US 5,489,934 AGranted
Printed wire recording transducer for electrostatic printing/plotting applications
AssigneeCalComp Inc.
InventorJames R. Hack
Life of this patent
Estimating the term…
Abstract
A printed wire electrostatic printing transducer having two or more rows of styli together defining the recording stylus configuration and an associated method for producing such a transducer by printed circuit techniques. Provision is made for the integration of counter electrodes and multiplexing circuitry with the transducer in a single package.
Claims13
A printed wire recording transducer for electrostatic printing/plotting comprising:
- n pairs of printed electrically conductive stylus arrays, n being an integer at least equal to 2, said pairs of arrays consisting of a first array and a second array each formed by a plurality of parallel printed styli produced on opposite faces of an electrically insulative substrate, the styli of the first array being parallel to the styli of the second array;
- and wherein,
- each substrate is stacked and supported together such that the styli of adjacent arrays of two adjacent substrates are parallel to and electrically isolated from one another;
- the styli of the first array on each substrate are offset relative to the styli of the second array on the substrate in a same direction perpendicular to the styli of the arrays;
- and,
- each of said pairs of arrays is sequentially offset from an adjacent pair of arrays in the same direction as the offset between the styli of first and second arrays on each substrate.
3 more elements
A method of producing a recording transducer for electrostatic printing comprising the steps of:
- producing by printed circuit techniques n pairs of printed electrically conductive stylus arrays, n being an integer at least equal to 2, said pairs of arrays consisting of a first array and a second array each comprising a plurality of parallel printed styli formed on opposite faces of an electrically insulative substrate, the styli of the first array being parallel to the styli of the second array;
- stacking and supporting each substrate such that the styli of adjacent arrays of two adjacent substrates are parallel to and electrically isolated from one another;
- offsetting the styli of the first array on each substrate from the styli of the second array on the substrate, said offsetting being in a same direction which is perpendicular to the styli of the arrays;
- and,
- sequentially offsetting each of said pairs of arrays from an adjacent pair of arrays in the same direction as the offset between the styli of first and second arrays on each substrate.
2 more elements
Dependencies are inferred from the claim text.