Abstract: The printing apparatus according to the present invention includes a carriage, a supply tube, a head set cover that moves to a first orientation at which the printing head is fixed to the carriage and a second orientation at which the printing head is attachable to or detachable from the carriage, and a joint unit that moves to a first position connected to the printing head and a second position separated from the printing head, wherein the joint unit does not, move to the first position from the second position when the head set cover moves to the first orientation from the second orientation, and moves to the second position from the first position in cooperation with movement of the head set cover when the head set cover moves to the second orientation from the first orientation.

Abstract: There is provided an ink jet recording apparatus capable of preventing a user from erroneously performing an opening and closing operation of a valve in the supply of ink to a recording head from an ink tank.

Abstract: An ink tank that enables to check whether a cover of an ink tank is normally bonded to the ink tank includes a first chamber having a supply port for supplying ink to a printing head that ejects ink, a second chamber having an external air introduction port capable of introducing external air, a partition wall configured to separate the first chamber and the second chamber, a communication path provided in the partition wall and configured to place the first chamber and the second chamber in communication with each other, a first cover member configured to cover an opening of the first chamber without extending over an opening of the second chamber, and a second cover member configured to cover the opening of the second chamber without extending over the opening of the first chamber.

Abstract: A pressing unit configured to press a supporting surface for supporting a sheet, and a carriage configured to hold a sensor unit and to move on the pressing unit are integrated into one unit. There is provided a movement mechanism configured to move the unit between a first position in which the pressing unit presses the supporting surface during reading and a second position in which the pressing is released during movement of the sheet on the supporting surface.

Abstract: [Problem] A parking brake control device can ensure required braking force and reliably allow release even if an automatic pressurization function that increases a W/C pressure is malfunctioning, regardless of operation of a brake pedal. [Solution] If an ESC is malfunctioning when a locking control or a releasing control of a parking brake is being performed, a depression request for a brake pedal is output to a driver. As a result, when the ESC is malfunctioning, namely, even if an automatic pressurization function of a service brake is malfunctioning, a W/C pressure can be increased by the driver depressing the brake pedal. Thus, it is possible to ensure required braking force at times when the locking control is being performed, and also possible to reliably release when the releasing control is being performed.