Abstract: An example printer including: a platen roller; a bushing connected to the platen roller, the bushing having a wing extending radially from the bushing; and a lower frame including: a channel to receive the platen roller in an operational position in which the platen roller is configured to feed media for a print head of the printer; an end piece defining an end of the channel, the end piece having an opening to receive the bushing when the platen roller is in the operational position; and a tab on the end piece, the tab positioned to interface with the wing of the bushing to secure the bushing in the opening such that the platen roller is maintained in the operational position within the channel.