Sheet package and printing unit

摘要

In a sheet package, the degree of stiffness of a side end portion on a side wall portion side making contact with a contact member in a storage portion of a printing unit is greater than the degree of stiffness of a side end portion on the side wall portion side that is pressed by a pressing guide member. Accordingly, when the sheet package is stored in the storage portion, even if the lid body is closed in a condition in which the sheet package is not loaded properly, that is, even if the side end portion of the sheet package is sandwiched between the lid body and the contact member, or a top face on the side on which the contact member is provided, the sheet package is never crushed and the sheet package can be correctly pushed into the storage portion by a pressing force of the lid body.