Typewriting machines – Means auxiliary to typewriting function – Indicator means
Patent
1992-10-06
1993-08-17
Eickholt, Eugene H.
Typewriting machines
Means auxiliary to typewriting function
Indicator means
116303, 221 6, 271127, B41J 2918
Patent
active
052363481
ABSTRACT:
An imprinting mechanism includes a sheet tray and comprises a housing and a spring bias device within the housing. A sheet stack support is positioned within the housing and in contact with the spring bias, the spring bias forcing the sheet stack support towards a first position, the sheet stack support being forced (against the spring bias) to a second position when a stack of sheets is positioned thereon. A pivotally mounted indicator is positioned within the housing and includes first and second arm portions, a first portion being in contact with a surface of the sheet stack support and a second portion movable between visible and invisible locations, as viewed by a user. The first portion is movable about the pivot to position the second portion to the visible location when a predetermined size stack of sheets remain in the sheet stack support. The indicator is constructed of a single piece of molded plastic and its second portion exhibits greater mass than its first so that no spring or other bias device is required in its operation.
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"Paper-Low Indicator for Sheet Pack Feed for Typewriters" IBM Tech. Discl. Bulletin, vol. 24, No. 5, Oct. 1981, pp. 2277-2278.
"Bill Cartridge with Indications of Improper Bill Loading" IBM Tech. Discl. Bulletin, vol. 28, No. 7, Dec. 1985, pp. 3056-3057.
"End of Stack Mechanism" IBM Tech. Discl. Bulletin, vol. 30, No. 4, Sep. 1989, pp. 1460-1462.
"Indicating Spring Holder" IBM Tech. Discl. Bulletin, vol. 28, No. 6, Nov. 1985, pp. 2549-2550.
"Paper Supply Sensing for Edge Erase & Other Copier Control Response," IBM Tech. Discl. Bulletin, vol. 23, No. 7B, Dec. 1980, pp. 3139-3141.
Fetherolf Willis G.
Yergenson Robin P.
Eickholt Eugene H.
Hewlett--Packard Company
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