Record media compensation means for printers

Details Record media compensation means for printers Record media compensation means for printers

1976-12-10

1978-05-09

Pieprz, William

Typewriting machines

Including adjustment for optimum printing plane

Responsive to thickness of record-medium

346139C, 360 75, 73DIG3, 400 59, 400124, B41J 792

Patent

active

040882152

ABSTRACT:
A printing device is provided which includes a feeler pivotally mounted on a printer frame and urged into engagement with record media positioned on a platen for printing. A magnetic element on the feeler coacts with a Hall generator on the frame to provide a control voltage which is effective to control a motor for positioning of the frame so that a print head mounted on said frame is located at a proper distance from the record media for printing thereon.

REFERENCES:
patent: B481600 (1976-01-01), Thomas et al.
patent: 2141975 (1938-12-01), Finch
patent: 2993437 (1961-07-01), Demer et al.
patent: 3048665 (1962-08-01), Wilcox
patent: 3049990 (1962-08-01), Brown et al.
patent: 3146058 (1964-08-01), Henshaw
patent: 3164013 (1965-01-01), Schmahl et al.
patent: 3183830 (1965-05-01), Fisher et al.
patent: 3614579 (1971-10-01), Fulton
patent: 3632900 (1972-01-01), Knizweil et al.
patent: 3705408 (1972-12-01), Krone et al.
patent: 3706861 (1972-12-01), Giel
patent: 3750792 (1973-08-01), Liles
patent: 3817365 (1974-06-01), Zimmerman
patent: 3837461 (1974-09-01), Waibel
patent: 3981235 (1976-09-01), Thomas et al.
Carpenter et al., Forms Sensor For Automatic Platen, IBM Technical Disclosure Bulletin vol. 13 No. 12 p. 3643 May 1971.
Aero Vox Research Worker vol. 36 No. 1-12 Jan.-Dec. 1966.

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