Recording sheet package and sheet supply cassette for printer

摘要

A recording sheet package for a printer (75) includes a packaging case (11) which contains a stack of recording sheets. The case has cutouts (23-27) formed in its periphery to prevent incorrect insertion into a printer. The cutouts are closed by at least one blocking mechanism (13c-13e, 85-87, 90), disposed inside the packaging case, which is shifted inwards from the cutout when the case is correctly inserted.