There is provided a bobbin for a thermal transfer sheet or an image-receiving sheet which can reduce the number of parts and can have a smooth surface. The bobbin includes a cylindrical bobbin body 11. A gear 12 including a number of teeth 13 is formed in one end surface of the bobbin body 11. The teeth 13 of the gear 12 each have the shape of a trapezoid when viewed from the side. One lateral side 13b of the trapezoid extends in the axial direction of the bobbin body 11.

This printing device includes a first supply roller and a second supply roller that supply the pair of ink ribbons; a first winding roller and a second winding roller that are pulled out from the first supply roller and the second supply roller and wind the pair of ink ribbons passing through a printing position; and a roller driving unit that rotates the first winding roller and the second winding roller. The roller driving unit includes one rotational driving device in which a rotating shaft is rotatable in a normal direction and a reverse direction, a first transmission mechanism that transmits only the rotation of the rotating shaft in the normal direction to the first winding roller, and a second transmission mechanism that transmits only the rotation of the rotating shaft in the reverse direction to the second winding roller.

An ink ribbon cartridge may include a supply roll; a winding roll; and a power transmission mechanism to transmit power from a drive source to the supply roll and the winding roll. A direction in which an ink ribbon is wound by the winding roll is a ribbon winding direction and a direction in which the ink ribbon is wound by the supply roll is a ribbon rewinding direction. The power transmission mechanism may include a winding side one-way clutch to transmit a driving force in the ribbon winding direction to the winding roll and cut off transmission of the driving force in the ribbon rewinding direction to the winding roll; and a supply side one-way clutch to transmit the driving force in the ribbon rewinding direction to the supply roll and cuts off transmission of the driving force in the ribbon winding direction to the supply roll.

A sheet feeding apparatus includes a first sheet storage portion and a second sheet storage portion disposed side by side with the first sheet storage portion. The sheet feeding device includes a sheet bundle moving member configured to transfer sheets in the second sheet storage portion to the first sheet storage portion and a pickup roller configured to feed the sheet by abutting against the sheet stored in the first sheet storage portion. When transferring the sheet bundle in the second sheet storage portion to the first sheet storage portion, the pickup roller is rotated in the same direction as that during feeding.

A printing apparatus includes a belt mover for an endless belt that transports a recording medium, a feed amount calculator that calculates an amount of feed of the belt mover, a movement amount detection sensor as a movement amount measurer that measures actual amount of movement of the endless belt by image processing, a compensation table storer that stores a compensation table for compensating a transport error of the endless belt, and a control portion that calculates the amount of feed that is to bring about a predetermined amount of movement of the endless belt by using the feed amount calculator and by referring to the compensation table storer, moves the endless belt by using the belt mover on the basis of the amount of feed, compares the actual amount of movement of the endless belt measured by the movement amount detection sensor and the predetermined amount of movement.

Provided is a medicine packaging device. The medicine packaging device includes: a reader-writer that reads information from an IC tag installed at a supply core of an ink ribbon roll detachably installed to an ink ribbon cassette as well as writes information to the IC tag; a motor control unit that controls a winding motor for rotating a winding core, based on a used length of the ink ribbon which is information read from the IC tag, so that the ink ribbon of the ink ribbon roll runs in a winding direction at a higher speed than a feeding speed of a continuous sheet for packaging; and a written information output unit that outputs information showing the used length of the ink ribbon which has been changed due to use of the ink ribbon, to the reader/writer as information written on the IC tag.

Provided is a medicine packaging device. The medicine packaging device includes: a reader-writer that reads information from an IC tag installed at a supply core of an ink ribbon roll detachably installed to an ink ribbon cassette as well as writes information to the IC tag; a motor control unit that controls a winding motor for rotating a winding core, based on a used length of the ink ribbon which is information read from the IC tag, so that the ink ribbon of the ink ribbon roll runs in a winding direction at a higher speed than a feeding speed of a continuous sheet for packaging; and a written information output unit that outputs information showing the used length of the ink ribbon which has been changed due to use of the ink ribbon, to the reader/writer as information written on the IC tag.

Provided is a medicine packaging device. The medicine packaging device includes: a reader-writer that reads information from an IC tag installed at a supply core of an ink ribbon roll detachably installed to an ink ribbon cassette as well as writes information to the IC tag; a motor control unit that controls a winding motor for rotating a winding core, based on a used length of the ink ribbon which is information read from the IC tag, so that the ink ribbon of the ink ribbon roll runs in a winding direction at a higher speed than a feeding speed of a continuous sheet for packaging; and a written information output unit that outputs information showing the used length of the ink ribbon which has been changed due to use of the ink ribbon, to the reader/writer as information written on the IC tag.

Provided is a medicine packaging device. The medicine packaging device includes: a reader-writer that reads information from an IC tag installed at a supply core of an ink ribbon roll detachably installed to an ink ribbon cassette as well as writes information to the IC tag; a motor control unit that controls a winding motor for rotating a winding core, based on a used length of the ink ribbon which is information read from the IC tag, so that the ink ribbon of the ink ribbon roll runs in a winding direction at a higher speed than a feeding speed of a continuous sheet for packaging; and a written information output unit that outputs information showing the used length of the ink ribbon which has been changed due to use of the ink ribbon, to the reader/writer as information written on the IC tag.

An example disclosed printer configured to peel media from a backing, the printer having a peeler assembly that is engageable between a peeling position, wherein the printer is configured to peel the media from the backing, and a non-peeling position, wherein the printer is not configured to peel the media from the backing. The printer further including a sensor configured to send a signal corresponding to a position of the peeler assembly. The printer further including a communication interface configured to receive the position of the peeler assembly from the sensor and configured to transmit the position of the peeler assembly to a secondary component.