Patent ID: 7104487

Claim:
A drive device to which a recording tape cartridge is loaded and used for at least one of recording information to and reading information from the recording tape cartridge, the recording tape cartridge including a case that has a recess portion, a first angled surface and second angled surface at a front end side in a loading direction of the recording tape cartridge, wherein the second angled surface is formed in the recess portion, the drive device comprising: a bucket for receiving the case, the bucket having a positioning cover; a first reference portion, formed at least partially by an angled corner of the positioning cover, such that the first reference portion abuts the first angled surface of the case; and a second reference portion disposed so as to be able to abut to the second angled surface, whereby the positioning of the recording tape cartridge relative to the drive device in horizontal directions is determined by respective abutting of the first and second reference portions to the first and second angled surfaces.