A printer includes a head which includes a nozzle face which ejects ink toward a top of a surface of a nail of a finger, a driving mechanism which moves the head in a predetermined direction, an image capturer which generates a nail side image showing a side of the nail of the finger by capturing an image of the nail of the finger, and a display controller which performs image processing on the nail side image from the image capturer, causing a display to display an image for height position adjustment including a target height position indicator added to the nail side image, the target height position indicator indicating a target height position of the nail of the finger spaced from the nozzle face by a predetermined distance.

A printing device includes a printing head with nozzles, a movement mechanism that moves the printing head, and at least one processor. The processor controls the printing head to eject ink from each of the nozzles and to print on each position in a printing target area while causing the movement mechanism to move the printing head; and upon superposing printings in the printing target area based on pieces of data that are different from each other, controls the printing head to eject ink from at least one of the nozzles in each printing onto a different position from a position in a previous printing based on a different piece of data among the pieces of data for each of the superposing printings. The pieces of data is used in specifying from which of the nozzles ink is ejected onto each position in a printable area of the printing device.

A printing device includes a printing head with nozzles, a movement mechanism that moves the printing head, and at least one processor. The processor controls the printing head to eject ink from each of the nozzles and to print on each position in a printing target area while causing the movement mechanism to move the printing head; and upon superposing printings in the printing target area based on pieces of data that are different from each other, controls the printing head to eject ink from at least one of the nozzles in each printing onto a different position from a position in a previous printing based on a different piece of data among the pieces of data for each of the superposing printings. The pieces of data is used in specifying from which of the nozzles ink is ejected onto each position in a printable area of the printing device.

A gel nail sticker includes a bottom layer, a color layer arranged on the bottom layer, a bronzing primer layer arranged on the color layer, a brightening layer arranged on the bronzing primer layer, and a protective film arranged on the brightening layer. The bottom layer adopts a self-adhesive layer with strong adhesion, flexibility, deformability, and stretchability. The color layer is printed in different colors depending on the needs of the product. The first varnish layer and second varnish layer protect the color layer. The bronzing primer layer is used to make the surface of the nail sticker display a shimmering effect. The bronzing film protects the bronzing primer layer. The protective film is used to prevent scratches on the surface of the nail sticker. By setting the color layer, bronzing primer layer and brightening layer, the nail sticker can present a more beautiful effect.

Systems and apparatuses for applying coating to nails are disclosed. In one aspect, embodiments of the present disclosure include a method, which may be implemented on a system, to performing image processing on an image of the nail to locate a boundary of the nail. The method can further include determining a path along which to move the nail relative to an applicator, the applicator being used to coat the nail. In a further embodiment, using the located boundary of the nail, a dispensing procedure for the applicator to follow to coat the nail is determined.

A nail care tool having an ergonomic elongated handle, an operational head, and a male/female system or mechanism suitable to connect or disconnect the elongated handle and the operational head is presented. The tool also has a removable scraper or end tip inserted in one of the ends of the handle, useful in cleaning critical cuticle areas. The operational head may have different shapes and its external surface has different operational lining materials commonly used in the nail care and maintenance processes. In some embodiments, the lining material on the operational head is an absorbent material, while in other embodiments, it is an abrasive material. By connecting the ergonomic handle to the operational removable head having the absorbent material, the tool is suitable to be used as a nail polish remover applicator, meaning being able to remove nail polishes. On the other hand, by engaging the ergonomic handle to the operational removable head having an abrasive material as a lining material, the tool is conveniently used as a nail buffing tool.

Disclosed herein is a system for treating skin and/or nails with cold plasma. The system includes a discharge device, which includes a handle and an applicator mounted thereon, and control infrastructure, which includes a waveform generator. The applicator includes an elongated tube housing therein a cathode. The handle includes a flyback amplifier. The waveform generator is configured to induce the flyback amplifier to establish a voltage at the cathode. The voltage produced by the flyback amplifier is configured to generate a self-sustaining Townsend avalanche when a distal end of the tube is positioned sufficiently near a target site on a skin surface or a nail of a subject, such that a cold plasma discharge is produced and directed at the target site and having an average power between about 0.1 .Math.W and about 10 .Math.W, so that the target site is not heated.

Disclosed herein is a system for treating skin and/or nails with cold plasma. The system includes a discharge device, which includes a handle and an applicator mounted thereon, and control infrastructure, which includes a waveform generator. The applicator includes an elongated tube housing therein a cathode. The handle includes a flyback amplifier. The waveform generator is configured to induce the flyback amplifier to establish a voltage at the cathode. The voltage produced by the flyback amplifier is configured to generate a self-sustaining Townsend avalanche when a distal end of the tube is positioned sufficiently near a target site on a skin surface or a nail of a subject, such that a cold plasma discharge is produced and directed at the target site and having an average power between about 0.1 .Math.W and about 10 .Math.W, so that the target site is not heated.

A cotton strip is adhered to a piece of aluminum foil, and aluminum foil is wrapped onto a mold simulating a finger, with the cotton strip on an interior side of the foil. Self-adherent fabric is wrapped around the foil on the mold. The self-adherent fabric is then treated with an electrically conductive solution, such as an electrolyte. The tip, including cotton, foil, fabric, and solution, is then formed into a sealed electrically conductive tip ready for use. At the time of use, acetone is applied to the cotton strip via a dropper or comparable mechanism, and the tip is placed on a finger to initiate the removal of nail polish, gel nail polish, or a nail overlay from a natural fingernail. The removal process enables use of a cell phone or other device with a touchscreen during the process.

A nail manicure method comprising applying a protective coating to portions of the surface of a finger or toe nail or a cuticle adjacent thereto where the application of nail polish is not desired, optionally manipulating the protective coating into a desired shape, and applying nail polish to regions not covered by the protective coating. Once the nail polish has at least partially dried, the protective coating is removed to reveal an underlying area with defined regions of nail polish.