Print media feed system and control method for the same

Details Print media feed system and control method for the same Print media feed system and control method for the same

2007-01-08

2009-11-10

Colilla, Daniel J (Department: 2854)

Typewriting machines

Including control of format by programmed-control-system

C400S638000, C400S639000

Reexamination Certificate

active

07614808

ABSTRACT:
A print media feed system comprises: a drive unit configured to move a feed roller; a sensing unit configured to sense movement of a feed roller; a detection unit configured to detect movement of a pinch roller; and a controller arranged to control the drive unit using a gain parameter and signals provided by the detection unit and the sensing unit. If it is detected that the pinch roller is in a first position in which the pinch roller presses against the feed roller such that a print media is between the pinch roller and the feed roller, the gain parameter is set to a first value. If it is detected that the pinch roller is not in the first position, the gain parameter is set to a second value which is lower than the first value.

REFERENCES:
patent: 4846455 (1989-07-01), Hurst
patent: 4979691 (1990-12-01), Kobayashi
patent: 6018162 (2000-01-01), Herbst et al.
patent: 2007/0145818 (2007-06-01), Kobayashi et al.

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