According to one embodiment, a thermal print head includes a heat sink; a head substrate placed on the heat sink and having a plurality of heat generating elements arranged in a primary scanning direction; a circuit board placed on the heat sink so as to be adjacent to the head substrate in an auxiliary scanning direction and provided with a connection circuit; and a control element electrically connected to the heat generating element via a first bonding wire and electrically connected to the connection circuit via a second bonding wire, in which at least one of the first bonding wire and the second bonding wire includes any of a copper wire, a copper alloy wire, and a wire mainly made of copper and coated with a metal different from copper.

A media processing device is disclosed. An example media processing device includes memory including machine-readable instructions; and a processor to execute the machine-readable instructions to control a printhead assembly, the processor being configured to communicate with the printhead assembly in accordance with a pin configuration, wherein the pin configuration includes pin groups, and each of the pin groups includes a signal line and a reference voltage, wherein the signal line pin is coupled to a source of changing values, and the reference voltage pin is coupled to a constant voltage.

A media processing device is disclosed. An example media processing device includes memory including machine-readable instructions; and a processor to execute the machine-readable instructions to control a printhead assembly, the processor being configured to communicate with the printhead assembly in accordance with a pin configuration, wherein the pin configuration includes pin groups, and each of the pin groups includes a signal line and a reference voltage, wherein the signal line pin is coupled to a source of changing values, and the reference voltage pin is coupled to a constant voltage.

An object is to provide a thermal transfer printer having an inexpensive configuration and capable of making a tension given to an ink ribbon as constant as possible, even when a secular change and an environmental change occur in a DC motor used as a supply motor and a winding motor. A supply motor control unit controls a supply motor of an ink ribbon supply unit. A winding motor control unit controls a winding motor of an ink ribbon winding unit. A remaining amount detection unit detects a remaining amount of an ink ribbon. A variable calculation unit acquires parameters for an armature current, an applied voltage, and a rotational speed of each of the supply motor and the winding motor, and calculates variables to be used for controlling the supply motor and the winding motor on the basis of the acquired parameters.

An object is to provide a thermal transfer printer having an inexpensive configuration and capable of making a tension given to an ink ribbon as constant as possible, even when a secular change and an environmental change occur in a DC motor used as a supply motor and a winding motor. A supply motor control unit controls a supply motor of an ink ribbon supply unit. A winding motor control unit controls a winding motor of an ink ribbon winding unit. A remaining amount detection unit detects a remaining amount of an ink ribbon. A variable calculation unit acquires parameters for an armature current, an applied voltage, and a rotational speed of each of the supply motor and the winding motor, and calculates variables to be used for controlling the supply motor and the winding motor on the basis of the acquired parameters.

A printing apparatus includes a thermal head and a processor. The thermal head prints an image on lines in a medium. The thermal head includes heat-generating elements to generate heat when a voltage is applied thereto in an application time, and the thermal head is controlled to sequentially on print each line. The processor is configured to: determine a specific line among lines based on printing data for printing lines, the specific line being a line estimated to have a possibility of sticking; and adjust the application time of an adjustment target line so as to be shorter than a reference application time, the adjustment target line having at least one line among lines, the at least one line being a line which is to be printed immediately before the specific line, the reference application time being set based on a temperature of the thermal head.

A printing device, includes a printer that prints onto a printing medium that is conveyed along a reference direction by a conveyer; and a controller that controls the printer to print a print pattern onto the printing medium along the reference direction. The controller controls to forbid the printer to execute printing when a temperature of the printer is projected to become equal to or higher than a set temperature if the printer prints onto the printing medium using a printing length of the print pattern along the reference direction, the printing length being a length of at least a portion of the print pattern along the reference direction.

A power source circuit includes a first converter, a second converter, a switch and a controller. The switch is configured to switch between a first state and a second state, in which in the first state, a first voltage is not supplied to the second converter whereas in the second state, the first voltage is supplied to the second converter. The controller controls the switch to change the first state to the second state in response to detection of the change in a first current flowing in a first load. The second converter is configured to convert a battery voltage of a battery to a second voltage lower than the battery voltage when the switch switches to the first state and convert the first voltage to the second voltage lower than the first voltage when the switch switches to the second state.

A power source circuit includes a first converter, a second converter, a switch and a controller. The switch is configured to switch between a first state and a second state, in which in the first state, a first voltage is not supplied to the second converter whereas in the second state, the first voltage is supplied to the second converter. The controller controls the switch to change the first state to the second state in response to detection of the change in a first current flowing in a first load. The second converter is configured to convert a battery voltage of a battery to a second voltage lower than the battery voltage when the switch switches to the first state and convert the first voltage to the second voltage lower than the first voltage when the switch switches to the second state.

According to one embodiment, there is provided a power reception device including: a power reception coil, a power reception unit, a notification unit, and a control unit. The power reception coil receives power from a power supply device in a non-contact manner. The power reception unit causes the received power as a charging current to flow to a load. The notification unit notifies that a relative position of the power reception device to the power supply device is inappropriate. The control unit starts charging by the charging current which is set to a first current value and controls the charging current so as to gradually increase the charging current. If the charging is stopped before the charging current reaches a second current value larger than the first current value, notification is performed that the relative position of the power reception device to the power supply device is inappropriate.