Typewriting machines – Sheet or web – Including friction-feed means
Patent
1982-10-12
1985-02-12
Wright, Jr., Ernest T.
Typewriting machines
Sheet or web
Including friction-feed means
400550, 400631, 4006361, 4006391, B41J 1302
Patent
active
044987951
ABSTRACT:
A method and system for semiautomatically setting a sheet of paper in a typewriter, printer and the like is provided. In accordance with the present invention, when a manually operable auto-set lever is moved from a first setting position to a second setting position, pressure and bail rollers are moved away from a platen roller around which a sheet of paper is to be set. At the same time, a carriage is moved to a first predetermined position of its travelling path. After inserting the leading edge of the sheet, when the auto-set lever is returned to the first setting position from the second setting position, the platen roller is driven to rotate with the pressure rollers in pressure contact therewith to advance the sheet over a predetermined distance along its line-feed direction and thereafter the carriage is moved to a second predetermined position during which the bail rollers are moved to press the sheet against the platen roller thereby setting the sheet ready for typing or printing.
REFERENCES:
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patent: 1270979 (1918-07-01), Schwartz
patent: 4042091 (1977-08-01), Levinson et al.
patent: 4179223 (1979-12-01), Kwan et al.
patent: 4225249 (1980-09-01), Kettler et al.
patent: 4266880 (1981-05-01), Buchanan
patent: 4275969 (1981-06-01), Matsuhisa et al.
IBM Technical Disclosure Bulletin, "Power-Operated Paper Insert Automatically Utilizing Triple Pitch for Typewriter", Lennon, vol. 22, No. 2, Jul. 1979, pp. 661-663.
IBM Technical Disclosure Bulletin, "Automotive First Writing Line Mechanism", Sweat, Jr., vol. 23, No. 9, Feb. 1981, pp. 3961-3964.
Ricoh & Company, Ltd.
Shoup Guy W.
Wright, Jr. Ernest T.
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