Roll paper printer

Details Roll paper printer Roll paper printer

2006-08-09

2009-06-30

Colilla, Daniel J (Department: 2854)

Typewriting machines

Sheet or web

For feeding web record-medium

C242S563000, C242S563200, C242S591000, C242S595000

Reexamination Certificate

active

07553098

ABSTRACT:
A roll paper printer comprising a roll paper storage unit having a bottom surface on which a roll paper is held and rolls, an operable cover unit for opening and closing a roll paper loading opening to the roll paper storage unit, a roll paper size detection mechanism comprising a detection lever that can move in a direction protruding into the roll paper storage unit and a direction retracting from the roll paper storage unit, and an urging member for urging the detection lever in the protruding direction, wherein the detection lever separates from the roll paper and is pushed in the protruding direction when an outside diameter of the roll paper stored in the roll paper storage unit decreases to a predetermined size or less, and a detection lever retraction mechanism for moving the detection lever protruding into the roll paper storage unit in the retracting direction against the urging force of the urging member in conjunction with the operable cover unit opening.

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