True edge thermal printhead

Recorders – Thermal recording

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

219543, B41J 2335

Patent

active

050814710

ABSTRACT:
A true edge thermal printhead and method of fabrication wherein the printhead infrastructure is formed by thick film techniques and the individual laminations are formed in a predetermined order. The printhead infrastructure includes a dielectric substrate, a common electrode layer, a high temperature glaze, an electrode pattern, a low temperature glaze and a plurality of resistive heating elements formed on the edge of the infrastructure and interconnected to the electrode pattern and the common electrode layer. The common electrode layer is a unitary sheet of refractory conductive material that is compatible with the high firing temperatures required for the high temperature glaze, and includes multiple ground taps. The fine image electrode pattern is compatible with the reduced firing temperature of the low temperature glaze such that gold pastes may be efficaciously utilized in the formation of the electrode pattern. Driver chips for activating the resistive heating elements are mounted in the printhead infrastructure to enhance printhead performance. Thermistors may be mounted on the glaze and/or substrate to monitor printhead temperature.

REFERENCES:
patent: 4232213 (1980-11-01), Taguchi et al.
patent: 4636811 (1987-01-01), Bakewell
patent: 4651168 (1987-03-01), Terajima et al.
patent: 4705697 (1987-11-01), Nishiguchi et al.
patent: 4810852 (1989-03-01), Bakewell

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

True edge thermal printhead does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with True edge thermal printhead, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and True edge thermal printhead will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-544193

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.