Abstract: A thermal printer, includes a head unit including a thermal head configured to perform printing on a recording sheet; a platen unit, which includes a platen roller configured to convey the recording sheet, and is separably combined with the head unit; a printer main body, which has a recording-sheet receiving portion configured to receive the recording sheet, and has the head unit mounted thereto; a printer cover, which has the platen unit mounted thereto, and is coupled to the printer main body so as to be pivotable; and a separator, which is provided in the recording-sheet receiving portion, and is configured to separate parts of the recording sheet, which is rolled into a roll shape around a core body, folded on each other at a rolling start portion, which is rolled around the core body and has a turn-back shape.

Abstract: A thermal printer, includes a head unit including a thermal head configured to perform printing on a recording sheet; a platen unit, which includes a platen roller configured to convey the recording sheet, and is separably combined with the head unit; a printer main body, which has a recording-sheet receiving portion configured to receive the recording sheet, and has the head unit mounted thereto; a printer cover, which has the platen unit mounted thereto, and is coupled to the printer main body so as to be pivotable; and a separator, which is provided in the recording-sheet receiving portion, and is configured to separate parts of the recording sheet, which is rolled into a roll shape around a core body, folded on each other at a rolling start portion, which is rolled around the core body and has a turn-back shape.

Abstract: A printing unit includes a frame, a head unit including a thermal head, a platen unit including a platen roller, a fixed blade provided to any one of the head unit and the platen unit, a movable blade provided to another one of the head unit and the platen unit and configured to slide with respect to the fixed blade, a drive mechanism configured to cause the movable blade to slide between a standby position of being separated from the fixed blade and a cutting position of riding on the fixed blade, an lever configured to release locking of the platen unit with respect to the head unit, and a return mechanism configured to move the movable blade to the standby position before releasing the locking of the platen unit by being interlocked with the lever under a state in which the movable blade is held at the cutting position.

Abstract: A printing unit includes a frame, a head unit including a thermal head, a platen unit including a platen roller, a fixed blade provided to any one of the head unit and the platen unit, a movable blade provided to another one of the head unit and the platen unit and configured to slide with respect to the fixed blade, a drive mechanism configured to cause the movable blade to slide between a standby position of being separated from the fixed blade and a cutting position of riding on the fixed blade, an lever configured to release locking of the platen unit with respect to the head unit, and a return mechanism configured to move the movable blade to the standby position before releasing the locking of the platen unit by being interlocked with the lever under a state in which the movable blade is held at the cutting position.

Abstract: A printer has first and second units configured for attachment/detachment relative one another and for supporting one of a recording head and a platen roller. The first unit has spaced wall portions provided with first and second recesses. The second unit has engagement pins that detachably fit into respective ones of the first recesses, a latch member that undergoes rotation about an axial line of the engagement pins and has a pair of lock pins that detachably fit into respective ones of the second recesses after the engagement pins are fitted in the first recesses, a biasing member biasing the latch member in a first direction of detachably fitting the lock pins in the second recesses, and a release member for moving the lock pins in a second direction opposite to the first direction to detach the lock pins from the second recesses.

Abstract: Provided is a printer capable of reliably combining a main unit and a detachable unit with each other, performing smooth attachment/detachment operation of the detachable unit, easily achieving miniaturization, and suppressing interference with fingertips during the attachment/detachment operation, to thereby increase safety. The printer includes: a main unit (10) including opposed walls (62); and a detachable unit (11) combined with the main unit so as to be attached to/detached from the main unit freely. The detachable unit includes: an engagement pin (50) protruding along an axial line which is non-coaxial and parallel with respect to a platen shaft of a platen roller (5); and a lock pin (51) movable relative to the engagement pin. The opposed walls each include: a first recess (65) and a second recess (66) allowing the engagement pin and the lock pin to be fitted detachably therein, respectively.