US 7,201,522 B2 · Printer cartridge

Abstract

A printer cartridge suitable for use in a cartridge-based printer houses and dispenses a roll of label media, and includes a housing having a top wall and a bottom wall. A yoke pivotally mounted between the top and bottom walls for pivotable movement about a pivot axis includes a label media supply shaft for holding a roll of label media. The label media supply shaft has a longitudinal axis spaced from, and parallel to, the pivot axis. A label media drive roller is rotatably mounted between the top and bottom walls, and a biasing means biases the yoke toward the label media drive roller to maintain the roll of label media in contact with the label media drive roller. Ratchet teeth fixed relative to at least one of the housing and yoke engage structure of the other of the housing and the yoke to prevent the yoke from pivoting away from the label media drive roller.

Claims15

Dependent claims

A printer cartridge for housing a roll of label media and dispensing the label media from the cartridge, said cartridge comprising:

a housing having a top wall and a bottom wall;
a yoke pivotally mounted between said top and bottom walls for pivotal movement about a pivot axis, and including a label media supply shaft for holding a roll of label media, said label media supply shaft having a longitudinal axis spaced from and parallel to said pivot axis;
a label media drive roller rotatably mounted between said top and bottom walls and engageable with the roll of label media;
at least one first ratchet tooth fixed relative to one of said yoke and said housing to prevent said yoke from pivoting away from said label media drive roller and a biasing means biases at least one said first ratchet tooth toward the said yoke and said housing to engage said at least one first ratchet tooth with structure fixed relative to said other of said yoke and said housing to prevent said yoke from pivoting away from said label media drive roller.

1 more element

A printer cartridge for housing a roll of label media and dispensing the label media from the cartridge, said cartridge comprising:

a housing having a top wall and a bottom wall;
a yoke pivotally mounted between said top and bottom walls for pivotal movement about a pivot axis, and including a label media supply shaft for holding a roll of label media, said label media supply shaft having a longitudinal axis spaced from and parallel to said pivot axis;
a label media drive roller rotatably mounted between said top and bottom walls and engageable with the roll of label media;
at least one first ratchet tooth fixed relative to one of said yoke and said housing to prevent said yoke from pointing away from said label media drive roller;
a rocker pad fixed relative to one of said yoke and said housing, and slidably engageable with a surface fixed relative to the other of said yoke and said housing to prevent said yoke from twisting and a biasing means biases at least one said first ratchet tooth toward the said yoke and said housing to engage said at least one first ratchet tooth with structure fixed relative to said other of said yoke and said housing to prevent said yoke from pivoting away from said label media drive roller.

2 more elements

Dependencies are inferred from the claim text.

Printer cartridge

Life of this patent

Printer cartridge

Life of this patent

Abstract

Claims15