A printer comprising a printhead configured to selectively cause a mark to be created on a substrate. The printer comprises a stepper motor having an output shaft coupled to the printhead, the stepper motor being arranged to vary the position of the printhead relative to a printing surface against which printing is carried out, and to control the pressure exerted by the printhead on the printing surface. The printer further comprises a sensor configured to generate a signal indicative of an angular position of the output shaft of the stepper motor. The printer further comprises a controller arranged to generate control signals for the stepper motor so as to cause a predetermined torque to be generated by the stepper motor; said control signals being at least partially based upon an output of said sensor.

An object is to improve image quality in panoramic printing using a thermal printer. The thermal printer includes a seam shape calculator and a controller. The seam shape calculator determines the position and shape of a seam between images on the basis of an index of inconspicuousness to human eyes, in panorama printing where a panoramic image longer than a specified printing size is divided into the images as small as or smaller than the printing size, and is printed multiple times so that the images are joined to each other. The controller controls a printing medium, an ink ribbon, and a thermal head so that the images divided based on the position and shape of the seam are thermally transferred onto respective continuous regions of the printing medium using unit printing regions of the ink ribbon, so as to be joined to each other.

A tattoo practice device includes a coloring portion, a connecting portion, and a sleeve. The coloring portion includes at least one coloring rod, and a plurality of coloring rods are arranged in a dot matrix. One end of the connecting portion is connected to the coloring portion, the connecting portion is linked with the coloring portion, and the sleeve is sleeved on a periphery of the connecting portion. When the connecting portion is driven to move in a first direction along a central axis of the sleeve, the coloring rod is driven to be close to a drawing medium and colors the drawing medium. When the connecting portion is driven to move in a second direction opposite to the first direction along the central axis of the sleeve, the coloring rod is driven to move in a direction away from the drawing medium.

A tattoo practice device includes a coloring portion, a connecting portion, and a sleeve. The coloring portion includes at least one coloring rod, and a plurality of coloring rods are arranged in a dot matrix. One end of the connecting portion is connected to the coloring portion, the connecting portion is linked with the coloring portion, and the sleeve is sleeved on a periphery of the connecting portion. When the connecting portion is driven to move in a first direction along a central axis of the sleeve, the coloring rod is driven to be close to a drawing medium and colors the drawing medium. When the connecting portion is driven to move in a second direction opposite to the first direction along the central axis of the sleeve, the coloring rod is driven to move in a direction away from the drawing medium.

A tattoo practice device includes a coloring portion, a connecting portion, and a sleeve. The coloring portion includes at least one coloring rod, and a plurality of coloring rods are arranged in a dot matrix. One end of the connecting portion is connected to the coloring portion, the connecting portion is linked with the coloring portion, and the sleeve is sleeved on a periphery of the connecting portion. When the connecting portion is driven to move in a first direction along a central axis of the sleeve, the coloring rod is driven to be close to a drawing medium and colors the drawing medium. When the connecting portion is driven to move in a second direction opposite to the first direction along the central axis of the sleeve, the coloring rod is driven to move in a direction away from the drawing medium.

A tattoo practice device includes a coloring portion, a connecting portion, and a sleeve. The coloring portion includes at least one coloring rod, and a plurality of coloring rods are arranged in a dot matrix. One end of the connecting portion is connected to the coloring portion, the connecting portion is linked with the coloring portion, and the sleeve is sleeved on a periphery of the connecting portion. When the connecting portion is driven to move in a first direction along a central axis of the sleeve, the coloring rod is driven to be close to a drawing medium and colors the drawing medium. When the connecting portion is driven to move in a second direction opposite to the first direction along the central axis of the sleeve, the coloring rod is driven to move in a direction away from the drawing medium.