If the ink tank runs out of the ink while printing, the ink stored in the subtank is available, allowing the ink tank to be replaced without having to stop printing.

f) Ink supply valves

Located halfway between each subtank and the ink tube, the ink supply valve prevents ink leaks that may occur when the ink tube on the ink tank is released during

replacement of the ink tank.

The ink supply valve is opened and closed by a valve open/close mechanism.

The ink tank unit consists of a tank base into which five-color ink tanks are assembled, and ink tubes for six colors (two occupied by MBK). Each color-specific

ink supply valves will open and close simultaneously for all the colors.

Valve motor

Hollow needle

Valve open/closed detection sensor

Agitation cam sensor

Valve cam

Ink supply valve

Ink tube

Subtank

F-2-10

2-21

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