Title: Printer having a limited movement platen and/or printing head and independent supports therefor

Abstract: A printer having a frame, a printing head and a platen, either one of the head and the platen is fixedly secured to the frame while the other is movably mounted on the frame by movable supports so that they are moved relatively toward and away from each other for the printing operation of a paper held therebetween when abutted against each other. The movable supports comprises a pair of supporting members each movably mounting other of the head and the platen independently from each other. Each of the supporting member is biased by a spring so as to urge the other of the head and the platen against the one of the head and the platen independently from each other. Thus, the parallel relationship between the head and the platen when abutted against each other for the printing operation is insured.

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Inventors: Okabe, Katsuhiko (Tokorozawa, JA)

Application Number: 579425
Filing Date: 1975-05-21
Publication_date: 1977-03-22
Assignee: Copal Company Limited (Tokyo, JA)
Primary Class(es): 400/120.16 400/185, 400/377, 400/578
Other Classes:
US Patent Ref:

2985135	Mar, 1961	Hickerson	197/1.
3754278	Aug, 1973	Borden	346/76.
3787886	Jan, 1974	McCrady	346/76.
3810192	May, 1974	Okabe	346/76.
3828911	Aug, 1974	Soderstrom	197/114.
3837461	Sep, 1974	Waibel	197/148.
3848720	Nov, 1974	Carlsen	197/1.

Other Refs:
Primary Examiner: Burr, Edgar S.
Assistant Examiner: Sewell, Paul T.
Attorney: Oblon, Fisher, Spivak, McClelland & Maier