The invention relates to a mixing device for mixing a fluid in a container, in particular of a fluid system, comprising a fluid supply and at least one outlet arm with an outlet opening, the fluid supply being connected to the at least one outlet arm in a fluid-communicating fashion. According to the invention, the outlet opening, for an outlet of the fluid, is oriented towards an outlet direction in order to set the fluid in the container rotating at least in sections thereof.

The invention relates to a mixing device for mixing a fluid in a container, in particular of a fluid system, comprising a fluid supply and at least one outlet arm with an outlet opening, the fluid supply being connected to the at least one outlet arm in a fluid-communicating fashion. According to the invention, the outlet opening, for an outlet of the fluid, is oriented towards an outlet direction in order to set the fluid in the container rotating at least in sections thereof.

An ink delivery system is provided. The ink delivery system includes at least one ink cartridge dispenser including an ink cartridge holder for holding an ink cartridge storing printing ink, at least one ink level sensor, a rotatable ink fountain roller and an ink fountain blade, forming a dispensed ink area receiving printing ink from the ink cartridge. The ink delivery system also includes a support supporting the at least one ink cartridge dispenser movably across a longitudinal axis of the ink fountain roller. The ink cartridge dispenser is movable along the support and fixable to the support manually. A method for supplying printing ink is also provided.

A heating drum for thermal transfer includes: a cylindrical outer tube; an inner tube having a smaller diameter than the outer tube, and disposed inside the outer tube; a rotating shaft fixed to the center of the inner tube via connecting members; covers configured to form a heat transfer oil accommodating space by sealing a space between the inner tube and the outer tube that is opened to the outside; heaters installed to pass through the covers, and configured to heat the sealed heat transfer oil accommodating space; holders disposed between the inner tube and the outer tube, and configured to support the heaters; a valve configured to control the discharge of the internal air of the heat transfer oil accommodating space; and heat transfer oil filled in the heat transfer oil accommodating space.

A heating drum for thermal transfer includes: a cylindrical outer tube; an inner tube having a smaller diameter than the outer tube, and disposed inside the outer tube; a rotating shaft fixed to the center of the inner tube via connecting members; covers configured to form a heat transfer oil accommodating space by sealing a space between the inner tube and the outer tube that is opened to the outside; heaters installed to pass through the covers, and configured to heat the sealed heat transfer oil accommodating space; holders disposed between the inner tube and the outer tube, and configured to support the heaters; a valve configured to control the discharge of the internal air of the heat transfer oil accommodating space; and heat transfer oil filled in the heat transfer oil accommodating space.