Single slit disk for detecting amount of feed of sheet member

Details Single slit disk for detecting amount of feed of sheet member Single slit disk for detecting amount of feed of sheet member

1989-07-06

1992-07-21

Wiecking, David A.

Typewriting machines

For line-spacing by incremental rotation of platen

By electric-power drive

400703, B41J 1992

Patent

active

051317702

ABSTRACT:
The present invention provides a detecting apparatus for detecting an amount of feed of a sheet member. Detecting apparatus comprises a feeding means for feeding a sheet member, a rotary member engaged by the sheet member and rotatingly driven by the sheet member being fed by the feeding means, and an calculating circuit for calculating an amount of feed of the sheet member on the basis of a rotational amount of the rotary member.

REFERENCES:
patent: 3917142 (1975-11-01), Guarderas
patent: 4027764 (1977-06-01), Kashio
patent: 4379646 (1983-04-01), Maeda
patent: 4530613 (1985-07-01), Horman
patent: 4683480 (1987-07-01), Sakamoto
patent: 4892426 (1990-01-01), Steele
patent: 4934845 (1990-06-01), Kato

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