Patent ID: 7914217

Claim:
A printer comprising: a support frame having a first slot; a plate having a tab and a ring bearing positioned in a hole of the plate, the tab being configured to slidably engage with the first slot in order to mount the plate to the support frame; at least one elongate roller supported at a longitudinal first end by being positioned within the ring bearing and at a longitudinal second end by the support frame, the plate being configured to be slid into engagement with the first slot of the support frame with the ring bearing positioned in the hole and the first end of the roller positioned within the ring bearing, the ring bearing being configured to allow pivotal movement of the roller about the second end during the sliding engagement and to allow, in use, rotation of the roller for transport of print media within the printer; and a second plate for fixing the roller to the support frame at the second end of the roller, the second plate comprising a second bearing into which the second end of the roller is positioned for allowing the rotation of the roller, the second bearing being configured to allow the pivotal movement of the roller about the second end during the sliding engagement of the plate and support frame, the second plate being molded with a seat which seats a motor for driving rotation of the roller, wherein the roller comprises gears for cooperation with corresponding features of a capping mechanism of a printhead cartridge received by the support frame, the motor driving rotation of the roller to operate the capping mechanism.