A cassette tape includes: a cassette case; a first tape roll and a second tape roll accommodated in the cassette case and rotatably supported thereby; and an RFID tag disposed at one of an upper wall and a lower wall of the cassette case. The first tape roll includes a first tape wound about a first winding axis extending in an axial direction. The second tape roll includes a second tape wound about an axis different from the first winding axis and extending in the axial direction. The second tape roll has a smaller diameter than the first tape roll. The RFID tag includes an antenna and a storage element for radiocommunication to read and write data. A part of the RFID tag is positioned to overlap with a part of the first tape roll in a predetermined direction parallel to the axial direction.

A cassette tape includes: a cassette case; a first tape roll and a second tape roll accommodated in the cassette case and rotatably supported thereby; and an RFID tag disposed at one of an upper wall and a lower wall of the cassette case. The first tape roll includes a first tape wound about a first winding axis extending in an axial direction. The second tape roll includes a second tape wound about an axis different from the first winding axis and extending in the axial direction. The second tape roll has a smaller diameter than the first tape roll. The RFID tag includes an antenna and a storage element for radiocommunication to read and write data. A part of the RFID tag is positioned to overlap with a part of the first tape roll in a predetermined direction parallel to the axial direction.

A printer includes, a printing portion configured to print on a print medium, a ribbon supply shaft configured to hold an ink ribbon to be supplied to the printing portion; and a ribbon roll up shaft configured to roll up the ink ribbon used in the printing portion, wherein when the ribbon supply shaft is placed at a ribbon replacement position where the ink ribbon is attachable and detachable, rotation of the ribbon supply shaft and rotation of the ribbon roll up shaft are regulated.

A printer includes, a printing portion configured to print on a print medium, a ribbon supply shaft configured to hold an ink ribbon to be supplied to the printing portion; and a ribbon roll up shaft configured to roll up the ink ribbon used in the printing portion, wherein when the ribbon supply shaft is placed at a ribbon replacement position where the ink ribbon is attachable and detachable, rotation of the ribbon supply shaft and rotation of the ribbon roll up shaft are regulated.

An opening/closing mechanism for an opening/closing cover includes the opening/closing cover, a cover protrusion, a protrusion engagement lever, an elastic member, and a cover opening section having an operation section, the cover opening section being configured to rotate the opening/closing cover in the closed position to a second position. The cover protrusion includes a second engaging portion configured to be pushed by the protrusion engagement member when the opening/closing cover is in the second position such that the opening/closing cover remains in the second position and includes a third engaging portion configured to be pushed by the protrusion engagement member when the opening/closing cover is in a third position between the second position and the open position such that the opening/closing cover rotates from the third position to the open position.

An opening/closing mechanism for an opening/closing cover includes the opening/closing cover, a cover protrusion, a protrusion engagement lever, an elastic member, and a cover opening section having an operation section, the cover opening section being configured to rotate the opening/closing cover in the closed position to a second position. The cover protrusion includes a second engaging portion configured to be pushed by the protrusion engagement member when the opening/closing cover is in the second position such that the opening/closing cover remains in the second position and includes a third engaging portion configured to be pushed by the protrusion engagement member when the opening/closing cover is in a third position between the second position and the open position such that the opening/closing cover rotates from the third position to the open position.

A printer includes, a printing portion configured to print on a print medium, a ribbon roll up shaft configured to roll up an ink ribbon used in the printing portion, a ribbon supply shaft provided movably between a first position and a second position with respect to the ribbon roll up shaft, the ribbon supply shaft configured to hold the ink ribbon to be supplied to the printing portion, and a ribbon supply shaft lock mechanism to be brought into a lock state where rotation of the ribbon supply shaft is regulated when the ribbon supply shaft is placed at the first position, and into a non-lock state where the rotation of the ribbon supply shaft is permitted when the ribbon supply shaft is placed at the second position.

A printer includes, a printing portion configured to print on a print medium, a ribbon supply shaft configured to hold an ink ribbon to be supplied to the printing portion, a ribbon roll up shaft configured to roll up the ink ribbon used in the printing portion, a partition member provided swingably, the partition member partitioning the ink ribbon and the print medium; and a ribbon supply shaft lock mechanism configured to regulate rotation of the ribbon supply shaft, wherein the ribbon supply shaft lock mechanism is switched between a lock state where the rotation of the ribbon supply shaft is regulated and a non-lock state where the rotation of the ribbon supply shaft is permitted in conjunction with swing actions of the partition member.

A printer includes, a printing portion configured to print on a print medium, a ribbon supply shaft configured to hold an ink ribbon to be supplied to the printing portion, a ribbon roll up shaft configured to roll up the ink ribbon used in the printing portion, a partition member provided swingably, the partition member partitioning the ink ribbon and the print medium; and a ribbon supply shaft lock mechanism configured to regulate rotation of the ribbon supply shaft, wherein the ribbon supply shaft lock mechanism is switched between a lock state where the rotation of the ribbon supply shaft is regulated and a non-lock state where the rotation of the ribbon supply shaft is permitted in conjunction with swing actions of the partition member.

A printer includes, a printing portion configured to print on a print medium, a ribbon supply shaft configured to hold an ink ribbon to be supplied to the printing portion, a ribbon roll up shaft configured to roll up the ink ribbon used in the printing portion, a partition member provided swingably, the partition member partitioning the ink ribbon and the print medium; and a ribbon supply shaft lock mechanism configured to regulate rotation of the ribbon supply shaft, wherein the ribbon supply shaft lock mechanism is switched between a lock state where the rotation of the ribbon supply shaft is regulated and a non-lock state where the rotation of the ribbon supply shaft is permitted in conjunction with swing actions of the partition member.