Tape cassette including tape roll, ribbon spool, ribbon take-up spool, housing including partition plate and arm, first gear, and second gear

A tape cassette comprising:

• a tape roll in which a tape and an ink ribbon are wound together in an overlaid state;
• a ribbon take-up spool rotatable about a first axis extending in a first direction, the ribbon take-up spool being configured to take up the ink ribbon;
• a housing having a first opening, the housing including:
• a partition plate partitioning an internal space of the housing into a first space in which the tape roll and the ribbon take-up spool are positioned and a second space, the first space and the second space being arranged in the first direction;
• and
• an arm positioned on an opposite side of the partition plate from the first space in the first direction, the arm having a second opening allowing the tape and the ink ribbon to be discharged through the second opening to an outside of the housing;
• a first gear positioned in the second space, the first gear being configured to transmit a drive force to the ribbon take-up spool;
• and
• a second gear positioned in the second space, the second gear being exposed to the outside of the housing through the first opening, the second gear being configured to operate in response to an operation of the first gear.

A tape cassette comprising:

• a tape roll in which a tape is wound;
• a ribbon spool about which an ink ribbon is wound, the ribbon spool being rotatable about a first axis extending in a first direction;
• a ribbon take-up spool configured to take up the ink ribbon;
• a housing having a first opening, the housing including:
• a partition plate partitioning an internal space of the housing into a first space in which the tape roll, the ribbon spool, and the ribbon take-up spool are positioned and a second space, the first space and the second space being arranged in the first direction;
• and
• an arm positioned on an opposite side of the partition plate from the first space in the first direction, the arm having a second opening allowing the tape and the ink ribbon to be discharged through the second opening to an outside of the housing;
• a first gear positioned in the second space, the first gear being configured to transmit a drive force to the ribbon take-up spool, the first gear including a first cam;
• and
• a second gear positioned in the second space, the second gear being exposed to the outside of the housing through the first opening, the second gear being configured to operate in response to an operation of the first gear,
• wherein the housing further has a third opening in communication with the first space, and
• wherein the first cam is visible from outside the housing through the third opening.