A printer cartridge (12) suitable for use in a cartridge-based printer (10) houses and dispenses a roll of label media (14). The cartridge includes housing (28)having a top wall (30) and a bottom wall (32). A yoke (42) pivotally mounted between the top and bottom walls for pivotable movement about a pivot axis (103) 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 (46) is rotatably mounted between the top and bottom walls, and a biasing means (44) biases the yoke (42) toward the label media drive roller to maintain the roll of label media in contact with the label media drive roller (46) and defines beginning of a media path. In one embodiment, the yoke is adjustable to accommodate different label media widths.