A liquid discharger includes a head including nozzles to discharge liquid from the nozzles, a detachable first container attached to the liquid discharger to accommodate the liquid, a second container connected to the head to accommodate the liquid to be supplied to the head, a supply channel to connect the first container and the second container, an irreversible pump connected to the second container, and a controller to control the irreversible pump to pressurize and decompress the second container to reciprocally move the liquid between the first detachable container and the second container via the supply channel.

A stirring device includes a tray configured to hold an ink container filled with ink, a support member configured to support the tray, a rotary member configured to support the support member, and a pedestal configured to rotatably support the rotary member, in which the tray and the support member are engaged with each other by engagement portions provided on the tray and the support member (engagement cut-out portion, engagement convex portion).

A stirring device includes a tray configured to hold an ink container filled with ink, a support member configured to support the tray, a rotary member configured to support the support member, and a pedestal configured to rotatably support the rotary member, in which the tray and the support member are engaged with each other by engagement portions provided on the tray and the support member (engagement cut-out portion, engagement convex portion).

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.

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 stirring device includes a tray configured to hold an ink container filled with ink, a support member configured to support the tray, a rotary member configured to support the support member, and a pedestal configured to rotatably support the rotary member, in which the tray and the support member are engaged with each other by engagement portions provided on the tray and the support member (engagement cut-out portion, engagement convex portion).

A liquid discharger includes a head including nozzles to discharge liquid from the nozzles, a detachable first container attached to the liquid discharger to accommodate the liquid, a second container connected to the head to accommodate the liquid to be supplied to the head, a supply channel to connect the first container and the second container, an irreversible pump connected to the second container, and a controller to control the irreversible pump to pressurize and decompress the second container to reciprocally move the liquid between the first detachable container and the second container via the supply channel.

A liquid discharger includes a head including nozzles to discharge liquid from the nozzles, a detachable first container attached to the liquid discharger to accommodate the liquid, a second container connected to the head to accommodate the liquid to be supplied to the head, a supply channel to connect the first container and the second container, an irreversible pump connected to the second container, and a controller to control the irreversible pump to pressurize and decompress the second container to reciprocally move the liquid between the first detachable container and the second container via the supply channel.

Disclosed is an automatic ink color blending apparatus, which comprises an apparatus cabinet (1) with a carrying platform (11), an ink bucket moving platform (2) provided on the carrying platform, the ink bucket moving platform including a moving guide rail (21), a weighing device (22) and an ink bucket (23), and wherein the ink bucket is disposed on the weighing device,the weighing device is provided on the moving guide rail and moves along the moving guide rail, an ink supply tank (3) arranged above the ink bucket moving platform,and wherein the ink supply tank includes a plurality of ink supply devices (31), each of which provides inks of different chromaticity and a control terminal (4) provided on the carrying platform, which is electrically connected to the ink supply tank, the moving guide rail and the weighing device respectively, for obtaining target chromaticity information, and generating control information of ink selection to select one or several ink supply devices to inject the corresponding chromaticity ink into the ink bucket sucessively, wherein the control information of ink selection includes selection information of an ink device and information of the amount of ink to be injected.

Disclosed is an automatic ink color blending apparatus, which comprises an apparatus cabinet (1) with a carrying platform (11), an ink bucket moving platform (2) provided on the carrying platform, the ink bucket moving platform including a moving guide rail (21), a weighing device (22) and an ink bucket (23), and wherein the ink bucket is disposed on the weighing device,the weighing device is provided on the moving guide rail and moves along the moving guide rail, an ink supply tank (3) arranged above the ink bucket moving platform,and wherein the ink supply tank includes a plurality of ink supply devices (31), each of which provides inks of different chromaticity and a control terminal (4) provided on the carrying platform, which is electrically connected to the ink supply tank, the moving guide rail and the weighing device respectively, for obtaining target chromaticity information, and generating control information of ink selection to select one or several ink supply devices to inject the corresponding chromaticity ink into the ink bucket sucessively, wherein the control information of ink selection includes selection information of an ink device and information of the amount of ink to be injected.