Pinch control in a printer

Details Pinch control in a printer Pinch control in a printer

2007-05-29

2007-05-29

Yan, Ren (Department: 2854)

Typewriting machines

Sheet or web

Including friction-feed means

C400S634000, C400S639000, C400S611000, C400S636300, C400S617000, C400S235100, C347S101000, C226S176000, C226S181000

Reexamination Certificate

active

11115666

ABSTRACT:
A pinch control apparatus in a printer for controlling a pinch force exerted on a medium which is being fed into a printing zone is provided. The pinch control apparatus includes a camshaft rotatably mounted across a width of the medium, at least one cam attached to the camshaft, a plunger and a biasing rod. The cam has a predefined profile and is able to rotate with the camshaft. The plunger abuts the predefined profile of the at least one cam. The biasing rod extends from a pinch plate to the plunger to bias the pinch plate to a linefeed roller for exerting the pinch force on the medium therebetween. The pinch force exerted on the medium is controllable by the rotation of the camshaft.

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