An example magnetic material supply apparatus includes a reservoir to contain a magnetic material, a connecting member having a first end coupled to the reservoir to receive the magnetic material, and a magnet. A magnetic field produced by the magnet controls supply of the magnetic material through the connecting member.

An example magnetic material supply apparatus includes a reservoir to contain a magnetic material, a connecting member having a first end coupled to the reservoir to receive the magnetic material, and a magnet. A magnetic field produced by the magnet controls supply of the magnetic material through the connecting member.

A magnetic domain drawing apparatus includes a magnetic plate moving module including a magnetic plate seating part configured to hold a magnetic plate seated thereon and a magnetic plate moving part configured to move the magnetic plate seating part, and at least one of magnetic domain deforming modules disposed to be spaced apart from the magnetic plate seating part at a predetermined distance and configured to deform a magnetic domain of the magnetic plate when the magnetic plate is seated on the magnetic plate seating part. The at least one of magnetic domain deforming modules is configured to deform the magnetic domain of the magnetic plate by applying at least one of heat, a magnetic field and an external force to the magnetic plate.

A magnetic domain drawing apparatus includes a magnetic plate moving module including a magnetic plate seating part configured to hold a magnetic plate seated thereon and a magnetic plate moving part configured to move the magnetic plate seating part, and at least one of magnetic domain deforming modules disposed to be spaced apart from the magnetic plate seating part at a predetermined distance and configured to deform a magnetic domain of the magnetic plate when the magnetic plate is seated on the magnetic plate seating part. The at least one of magnetic domain deforming modules is configured to deform the magnetic domain of the magnetic plate by applying at least one of heat, a magnetic field and an external force to the magnetic plate.

Described are techniques for ferrofluidic printing. The techniques including a method comprising receiving an electronic document at a ferrofluidic printer from a user device via a short-range network. The method further comprises applying a magnetic field to a ferrofluid to form a ferrofluidic template approximating a portion of the electronic document. The method further comprises projecting ink through the ferrofluidic template and onto a page using a blower.

Described are techniques for ferrofluidic printing. The techniques including a method comprising receiving an electronic document at a ferrofluidic printer from a user device via a short-range network. The method further comprises applying a magnetic field to a ferrofluid to form a ferrofluidic template approximating a portion of the electronic document. The method further comprises projecting ink through the ferrofluidic template and onto a page using a blower.

A magnetic domain drawing apparatus includes a magnetic plate moving module including a magnetic plate seating part configured to hold a magnetic plate seated thereon and a magnetic plate moving part configured to move the magnetic plate seating part, and at least one of magnetic domain deforming modules disposed to be spaced apart from the magnetic plate seating part at a predetermined distance and configured to deform a magnetic domain of the magnetic plate when the magnetic plate is seated on the magnetic plate seating part. The at least one of magnetic domain deforming modules is configured to deform the magnetic domain of the magnetic plate by applying at least one of heat, a magnetic field and an external force to the magnetic plate.

A magnetic domain drawing apparatus includes a magnetic plate moving module including a magnetic plate seating part configured to hold a magnetic plate seated thereon and a magnetic plate moving part configured to move the magnetic plate seating part, and at least one of magnetic domain deforming modules disposed to be spaced apart from the magnetic plate seating part at a predetermined distance and configured to deform a magnetic domain of the magnetic plate when the magnetic plate is seated on the magnetic plate seating part. The at least one of magnetic domain deforming modules is configured to deform the magnetic domain of the magnetic plate by applying at least one of heat, a magnetic field and an external force to the magnetic plate.

The present disclosure provides a printing apparatus. The printing apparatus includes a light-emitting device, a reflector, and a light-sensing device. The light-emitting device emits printing light. The reflector is at least partially located in an irradiation region of the printing light, and has a surface reflecting the printing light at different positions to generate reflected light having different exit directions. The light-sensing device includes a light-sensing surface. The light-sensing surface is at least partially located in an irradiation region of the reflected light and senses the reflected light to generate a plurality of continuously-distributed light spots on the light-sensing surface with any adjacent light spots equally spaced apart.

There is provided an apparatus for forming a magnetic pigment pattern on an article. The apparatus includes: a magnetic pattern mold having nonmagnetic pattern grooves engraved in a predetermined pattern and providing predetermined magnetic field lines on a pattern-forming object surface of an article by generating magnetism in areas outside the nonmagnetic pattern grooves; and a spray unit spraying an adhesive resin composite containing a ferromagnetic pigment onto the pattern-forming object surface of the article. A predetermined magnetic pigment pattern is formed while the magnetic pigment of the adhesive resin composite that is applied to the pattern-forming object surface of the article is rearranged along magnetic field lines generated by the magnetic pattern mold.