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Electrical properties of resistive ribbon

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2 Author(s)
Shih, K.K. ; IBM Research Division, P.O. Box 218, Yorktown Heights, New York 10598, USA ; Dove, D.

In resistive ribbon thermal transfer printing, a printhead consisting of an array of electrodes passes current into a thin ribbon to generate heat for transferring ink to paper. The ribbon is made of a polymeric material containing carbon black so as to be conducting, and has aluminum deposited on one side of the ribbon for a base contact. In this paper, the electrical conduction processes within the ribbon are discussed. Current-voltage measurements have been made with electrodes of various types in order to separate effects due to contact resistance, aluminum/resistive ribbon interfacial resistance, and bulk conduction in the resistive ribbon. Measurements have been made over a range of frequency and temperature to determine the basic conduction mechanisms. A model of conduction is presented that is in qualitative agreement with the data.

Note: The Institute of Electrical and Electronics Engineers, Incorporated is distributing this Article with permission of the International Business Machines Corporation (IBM) who is the exclusive owner. The recipient of this Article may not assign, sublicense, lease, rent or otherwise transfer, reproduce, prepare derivative works, publicly display or perform, or distribute the Article.  

Published in:

IBM Journal of Research and Development  (Volume:29 ,  Issue: 5 )

Date of Publication:

Sept. 1985

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