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US 4,387,384 AGranted
Recording device
AssigneeRicoh Company, Ltd.
InventorTakaji Sue
Life of this patent
Estimating the term…
Abstract
Characters, numerals and other symbols are formed with dots placed on a recording paper by a printing stylus thrust through a thin ink film formed in front of the recording paper.
Claims3
A recording device for utilizing liquid ink in the impact printing of characters, comprising:
- a reservoir adapted to receive a liquid ink;
- means for maintaining a desired level of ink in said reservoir;
- an open generally U-shaped vertically oriented ring depending from the bottom of said reservoir, with the opening of said ring being in communication with the ink within said reservoir, said ring being dimensioned to form a thin film of liquid ink therein and to retain said film by surface tension effects, in such a manner that ink constantly flows from said reservoir through said ring via said film and drips from the bottom of said ring;
- means for disposing a record medium adjacent said ring and in juxtaposition with said thin ink film;
- and
- a printing stylus adjacent said ring and adapted to be thrust through said thin ink film and against said record medium, to transport a part of said thin ink film to said record medium in accordance with a desired character to be printed.
3 more elements
Dependencies are inferred from the claim text.