An asymmetric thermal print head includes a print head body and a plurality of print elements supported on the print head body. The print elements are aligned along a first axis. Each print element includes a heater portion having a burn width measured along the first axis corresponding to a first print resolution, and a burn length measured along a second axis, which is perpendicular to the first axis, corresponding to a second print resolution. The second print resolution is higher than the first print resolution. One or more control circuits are configured to individually activate the print elements.

A thermal print head includes a semiconductor substrate, a resistor layer with heat generating portions arranged in the main scanning direction, a wiring layer included in a conduction path for energizing the heat generating portions, and a protective layer covering the resistor layer and the wiring layer. The semiconductor substrate includes a projection protruding from the obverse surface of the substrate and elongated in the main scanning direction. The projection has first and second inclined side surfaces spaced apart from each other in the sub-scanning direction. The heat generating portions are arranged to overlap with the first inclined side surface of the projection as viewed in plan view.

A thermal head includes a substrate, a glaze layer, and a reinforced conductor layer. The glaze includes a first glaze and a second glaze. The first glaze extends in a predetermined direction on the surface of the substrate. The second glaze is spaced part from the first glaze to one side in a direction perpendicular to the predetermined direction on the surface of the substrate. The reinforced conductor layer includes a lateral side part. The lateral side part extends on the surface of the substrate from the first glaze side to the second glaze side and is partially located on the second glaze. An edge part on the first glaze side in the second glaze includes a cutout portion cut out toward the one side in the direction perpendicular to the predetermined direction. The lateral side part passes through the cutout portion.

A thermal head includes a substrate, an electrode, a bonding material, an electrically conductive member, and a sealing material. The electrode is located on the substrate. The bonding material is located on the substrate or the electrode. The electrically conductive member is located on the bonding material and is electrically connected to the electrode via the bonding material. The sealing material is located on the substrate and covers the bonding material and the electrically conductive member. The bonding material includes a protruding portion located at an outer circumferential edge of the electrically conductive member away from the substrate and the electrically conductive member.

A control information generating method includes generating thermal transfer control information based on an amount of ink to be used for printing of a printing medium, in a case where thermal transfer control information for heating a printing medium printed on a first medium based on image data and thermally transferring the printing medium to a second medium is generated.

A thermal head includes a substrate; a plurality of heat generating portions; a common electrode disposed on the substrate and electrically connected to the plurality of heat generating portions; a plurality of individual electrodes disposed on the substrate and each electrically connected to a corresponding one of the plurality of heat generating portions; a first insulation layer disposed on the heat generating portions, a part of the common electrode, and a part of the individual electrodes; a second insulation layer located adjacent to the first insulation layer and disposed on a part of the individual electrodes; and a static removing layer disposed on the first insulation layer and grounded. The static removing layer includes a first portion disposed on an upper surface of the first insulation layer and a second portion electrically connected to the first portion and disposed on an upper surface of the second insulation layer.

A thermal print head includes a substrate, a resistor layer and a wiring layer. The substrate is made of a single crystal semiconductor and includes an obverse surface facing in one sense of a thickness direction. The resistive layer is supported by the substrate and includes a plurality of heat generating parts arranged side by side in a main scanning direction. The wiring layer is supported by the substrate and forms a conductive path to the plurality of heat generating parts. The wiring layer includes a conductive part and a heat generating sub-part for each of the plurality of heat generating parts, where the conductive part has a lower resistance value per unit length in a sub-scanning direction than the heat generating part, and where the heat generating sub-part has a resistance value per unit length in the sub-scanning direction that falls between the respective resistance values of the heat generating part and the conductive part. The substrate includes a ridge raised from the obverse surface and extending in the main scanning direction. The heat generating part, the heat generating sub-part and the conductive part are disposed on the ridge. The heat generating sub-part is located between the heat generating part and the conductive part in the sub-scanning direction.

A printer printing an image on a print medium based on print data including print dot data for each of print lines. The printer includes a print head including heating elements arranged along a direction of the print lines, and a controller finding the number of print dots on each print line and determining a first or second control mode as a control mode of the heating elements for printing each print line based on the found number of print dots. In the first control mode, the heating elements are divided into first groups including two or more adjacent heating elements and are heated at a different timing. In the second control mode, the heating elements are divided into second groups including two or more heating elements with at least two thereof spaced apart and are heated at a different timing.

A thermal print head includes a semiconductor substrate, a resistor layer and a wiring layer. The resistor layer is formed on the semiconductor substrate and has a plurality of heat generating portions arranged in the main scanning direction. The wiring layer is formed on the semiconductor substrate to be included in a conduction path for energizing the plurality of heat generating portions. The conduction path includes a path or paths provided by the semiconductor substrate itself.

The present disclosure provides a substrate for a thermal print head. The substrate for the thermal print head includes: a main surface on which a ridge portion is formed; a base material; and a glaze layer. The ridge portion extends along a first direction in a plan view and is formed of a pedestal portion which is a part of the base material and the glaze layer disposed on a top surface of the pedestal portion. A hollow portion is disposed inside the glaze layer.