Abstract: An inkjet printer system includes a print head, a sub tank, a pressure controller, and a check valve. The print head is configured to eject ink. The sub tank is connected to the print head and has a pressure control hole. The pressure controller is connected to the pressure control hole to control an inner pressure of the sub tank. The check valve is provided at the pressure control hole to prevent ink in the sub tank from flowing into the pressure control hole from the sub tank.

Abstract: An inkjet printer system includes a print head, a sub tank, and a sensor. The print head is configured to eject ink. The sub tank includes an ink supply chamber and an ink detection chamber. The ink supply chamber has an ink inlet hole and an ink outlet hole connected to the print head. Ink is supplied to the sub tank through the ink inlet hole. Ink is supplied to the print head from the sub tank through the ink outlet hole. The ink detection chamber communicates with the ink supply chamber. The sensor is configured to detect an amount of ink contained in the sub tank and includes a float member provided in the ink detection chamber to float in the ink.

Abstract: An inkjet printer system includes a print head and a sub tank. The print head is configured to eject ink. The sub tank is provided above the print head and connected to the print head via a head-side supply passage. The sub tank has a first supplying hole and a second supplying hole which are connected to the head-side supply passage. A position of the first supplying hole is higher than a position of the second supplying hole.

Abstract: A printer includes a supporting device, a cantilevered first guide arm, a second guide arm, and a printer head. The supporting device is configured to support a material to be printed. The cantilevered first guide arm has a longitudinal direction. The second guide arm is connected to the first guide arm to be movable along the longitudinal direction of the first guide. The second guide arm extends along a lateral direction substantially perpendicular to the longitudinal direction. The printer head is configured to print on the material supported by the supporting device and provided on the second guide arm to be movable along the lateral direction.