JP2008195081A5 - - Google Patents

Claims (8)

An ink supply mechanism that includes an ink cartridge and a connection unit, and supplies ink to the recording head by mounting the ink cartridge in the connection unit
An ink chamber, an atmosphere communication connection port and an ink supply connection port communicating with the ink chamber, and a negative pressure configured to supply the ink in the ink chamber to the recording head while maintaining a predetermined negative pressure state A generation mechanism,
The atmosphere communication connection port and the ink supply connection port provided in the ink cartridge are provided with first and second valve bodies that maintain a normally closed state, respectively.
When the ink cartridge is mounted, the connection unit presses the first and second valve bodies to open the connection, thereby connecting the atmosphere communication connection port to the atmosphere, and the ink An ink supply mechanism that enables ink in the chamber to be supplied to the recording head from the ink supply connection port. The ink supply mechanism according to claim 1, wherein the connection unit is provided with a capillary that connects the atmosphere communication connection port to the atmosphere when the ink cartridge is mounted. The said 1st and 2nd valve body is accommodated in the inside of the said atmosphere communication connection port and the said ink supply connection port so that the movement to an axial direction is possible, respectively. Ink supply mechanism. When the ink cartridge is connected to the connection unit, the first valve body is opened earlier than the second valve body,
The ink supply mechanism according to any one of claims 1 to 3, wherein when the ink cartridge is removed from the connection unit, the second valve body is closed earlier than the first valve body. A recording apparatus having an ink cartridge, a connection unit, and a recording head, and supplying ink to the recording head by attaching the ink cartridge to the connection unit,
An ink chamber, an atmosphere communication connection port and an ink supply connection port communicating with the ink chamber, and a negative pressure configured to supply the ink in the ink chamber to the recording head while maintaining a predetermined negative pressure state A generation mechanism,
The atmosphere communication connection port and the ink supply connection port provided in the ink cartridge are provided with first and second valve bodies that maintain a normally closed state, respectively.
When the ink cartridge is mounted, the connection unit presses the first and second valve bodies to open the connection, thereby connecting the atmosphere communication connection port to the atmosphere, and the ink A recording apparatus that allows ink in a chamber to be supplied to the recording head from the ink supply connection port. The recording apparatus according to claim 5, further comprising a capillary that connects the atmosphere communication connection port to the atmosphere when the ink cartridge is attached to the connection unit. The said 1st and 2nd valve body is accommodated in the inside of the said atmosphere communication connection port and the said ink supply connection port so that the movement to an axial direction is possible, respectively. Recording device. When the ink cartridge is connected to the connection unit, the first valve body is opened earlier than the second valve body,
The recording apparatus according to claim 5, wherein when the ink cartridge is removed from the connection unit, the second valve body is closed earlier than the first valve body.