Recorders – Electric recording – Electrochemical
Patent
1988-09-30
1990-06-19
Evans, Arthur G.
Recorders
Electric recording
Electrochemical
346151, G01D 1500
Patent
active
049357557
ABSTRACT:
A printing head comprising a thin resin board, printing electrodes positioned in parallel with each other mounted thereon, projections of an electroconductive substance on the electrodes, and slits cut in the head between the projections, extending from the front edge of the resin board to a point midway between the front and rear edges of the resin board. An electrically insulating layer may be deposited on the surface of the head, leaving the projections clear. The thin elastic resin board can deform easily to comply to deformations and irregularities in the printing medium surface. The slits allow removal of foreign matter, such as dust. The slits further allow the electrode projections to contact the printing medium singly or in small groups, across the length of the printing head, rather than all at once, so that the presence of foreign matter on one electrode will not prevent any other electrode projection from making contact. Adequate reliable contact of the electrodes may be maintained to produce high print quality at a reduced stylus pressure, thereby decreasing wear and required maintenance on the printer head and extending its service life.
Akutsu Eiichi
Soga Hiroo
Evans Arthur G.
Fuji 'Xerox Co., Ltd.
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