Tape cassette including ink ribbon, tape, and housing including first partition plate and arm

A tape cassette comprising:

• a ribbon roll in which an ink ribbon is wound, the ribbon roll being rotatable about a first rotational axis extending in a first direction;
• a tape roll in which a tape is wound, the tape roll being rotatable about a second rotational axis extending in the first direction;
• and
• a housing having an opening space in which the tape and the ink ribbon overlap each other for printing, the housing including:
• a first partition plate partitioning an internal space of the housing into a first space in which the ribbon roll is positioned and a second space in which the tape roll is positioned, the first space and the second space being arranged in the first direction;
• and
• an arm positioned on an opposite side of the first partition plate from the second space in the first direction, the arm having a discharge port allowing the ink ribbon and the tape to be discharged to the opening space through the discharge port;
• wherein the ink ribbon has a leading part extending from an interior of the arm to an outside of the housing through both the discharge port and the opening space, the leading part having a leading edge positioned outside the housing.