A printing device includes a main body, and a cassette attached to and detached from the main body. A locating shaft is provided on a back surface of the cassette. A ball that can protrude toward an outer side is provided in the locating shaft. A cylindrical guide body is provided at a position facing the locating shaft on a front surface of the main body. The cylindrical guide body guides and locates the locating shaft to a predetermined position on a side of the main body along an axis direction. When the locating shaft is located at the predetermined position, the ball engages with an engaged hole provided in the cylindrical guide body. The locating shaft is locked to the cylindrical guide body. A release button is pressed down by a user to release locking performed by the ball.

A printing device for printing tickets in public places, with an anti-paper jam system in which an optical sensor for detecting the presence of paper is arranged at a zone where a rise of the paper occurs in case of occlusion of the paper outlet mouth; before the start of a print, the paper is retracted with respect to the sensor, whereby the sensor is OFF; when the print starts, the paper advances until arriving in front of the sensor, whereby the sensor turns ON; from this moment on, if the to sensor returns OFF, it means that the paper is no longer detected by the sensor, because it has been raised by an occlusion, whereby the advancing of the paper is interrupted.

A print control apparatus is configured to transfer transparent protective ink onto an image printed on a substrate. The print control apparatus includes an extraction unit configured to extract a contour of a subject in the image, and a control unit configured to generate print data for transferring the protective ink using a printing apparatus, based on the extracted contour of the subject. The control unit generates the print data by assigning a high gradation value to a contour line corresponding to the extracted contour of the subject, assigning a low gradation value to a region corresponding to the subject, and assigning a mixture of the high gradation value and the low gradation value to an outer peripheral region of the subject.

Printhead carriers and adapters are disclosed. An example disclosed printhead carrier includes a base to carry a printhead assembly; a first pivot mechanism to pivot the base about a first axis; and a second pivot mechanism to pivot a connector about a second axis different than the first axis, the printhead assembly to be removably coupled to the connector.

Printhead carriers and adapters are disclosed. An example disclosed print mechanism includes an adapter to simultaneously couple a printhead assembly to both a logic circuit of a media processing device and a power source of the media processing device; a printhead carrier coupled to the adapter; and wherein a first connection, between data input connector and the logic circuit, and a second connection, between the power input connector and the power source, are maintained when the printhead assembly is removed from the print mechanism.

A printer includes a printing unit configured to print on the print medium, a ribbon shaft configured to hold the ink ribbon, a partition member provided swingably between a close position where gears that transmit drive force to the ribbon shaft mesh with each other and an open position where meshing between the gears is released, and a lock mechanism configured to hold the partition member with respect to the printing unit when the partition member is placed at the close position.

A printer includes a printing unit configured to print on the print medium, a ribbon shaft configured to hold the ink ribbon, a partition member provided swingably between a close position where gears that transmit drive force to the ribbon shaft mesh with each other and an open position where meshing between the gears is released, and a lock mechanism configured to hold the partition member with respect to the printing unit when the partition member is placed at the close position.

A thermal printer includes: a platen having a rotatable columnar shape and configured to convey a print medium having various widths by bringing the print medium into contact with an outer peripheral portion of the platen, a central portion of the platen in a direction of a rotary shaft of the platen being taken as a reference; and a print head facing the platen, pressed by the outer peripheral portion, and configured to print by applying heat to the print medium sandwiched between the print head and the outer peripheral portion. In the outer peripheral portion of the platen, a first groove is formed in a direction intersecting the direction of the rotary shaft in each of second outer peripheral portions on both outer sides in the direction of the rotary shaft with respect to a first outer peripheral portion in contact with the print medium having a smallest width that can be conveyed.

Provided herein is a printer comprising a printing assembly. The printing assembly comprises a printhead bracket fixedly attached to the printer, a printhead that defines a groove, the printhead aligned at a first alignment, an alignment adjuster fastened between the printhead bracket and the printhead, and a plurality of fasteners operatively engaged with the alignment adjuster. The alignment adjuster comprises a gear rack that is adjacent to the printhead bracket, and a protrusion that is received by the groove of the printhead. The plurality of fasteners comprises at least one selected from a group of a lateral adjustment fastener operatively engaged with the gear rack, and a rotational adjustment fastener operatively engaged with a transverse edge of the printhead. The lateral adjustment fastener is configured to provide lateral movement to the alignment adjuster and the printhead. The rotational adjustment fastener is configured to provide rotational movement to the printhead.

An example printing apparatus is illustrated. The printing apparatus includes a print engine assembly. The print engine assembly further includes a bottom chassis portion. The print engine assembly also includes a top chassis portion. The print engine assembly also includes a print head positioned within the top chassis portion. The print engine assembly also includes a plurality of offset pins coupled to the print head, where the plurality of offset pins abuts the bottom chassis portion, and where the plurality of offset pins enables the print head to be positioned at a predetermined distance from the bottom chassis portion.