摘要:
An ink jet recording head is provided with a nozzle formation face on which nozzles for ejecting ink drops in accordance with print data are formed. A capping member for sealing the nozzle formation face has an inner space formed with a bottom. An ink absorbing member is provided on the bottom of the inner space. In a first flushing mode, ink drops are ejected into the capping member in a state that the nozzle formation face is sealed by the capping member. In a second flushing mode, ink drops are ejected into the capping member in a state that the capping member is separated from the nozzle formation face. Either the first flushing mode or the second flushing mode is selectively performed.
摘要:
A capping member for an ink jet recording head is composed of a cap which is to be brought into contact with a surface of the recording head provided with nozzle orifices, and a cap case for holding the cap. A passage communicating an internal space defined by the cap with a suction hole connected to a suction pump and a passage communicating the internal space with an air hole connected to the outside are respectively formed into a specific shape so as to inhibit vaporization of an ink solvent in the internal space. A tube made of an elastic and restorative material is used for a tube connected to the suction pump. A tube made of a material having high gas-barrier characteristic is used for a tube connected to the capping member. Both of the tube is connected with each other by a connecting member in order to inhibit vaporization of an ink solvent from the tubes. Accordingly, the reliability of printing operation when printing is restarted after the long-term halt of the ink jet recording head is remarkably enhanced. The cap may be formed by fitting into a groove formed on a brim portion of the cup-shaped cap case having high rigidity. Therefore, elasticity of the cap can be controlled by the height thereof and can be deformed uniformly for whole periphery of the brim portion to attain high airtightness of the cap.
摘要:
An ink jet recording head is provided with a nozzle formation face on which nozzles for ejecting ink drops in accordance with print data are formed. A capping member for sealing the nozzle formation face has an inner space formed with a bottom. An ink absorbing member is provided on the bottom of the inner space. In a first flushing mode, ink drops are ejected into the capping member in a state that the nozzle formation face is sealed by the capping member. In a second flushing mode, ink drops are ejected into the capping member in a state that the capping member is separated from the nozzle formation face. Either the first flushing mode or the second flushing mode is selectively performed.
摘要:
An ink jet recording head is provided with a nozzle formation face on which nozzles for ejecting ink drops in accordance with print data are formed. A capping member for sealing the nozzle formation face has an inner space formed with a bottom. An ink absorbing member is provided on the bottom of the inner space. In a first flushing mode, ink drops are ejected into the capping member in a state that the nozzle formation face is sealed by the capping member. In a second flushing mode, ink drops are ejected into the capping member in a state that the capping member is separated from the nozzle formation face. Either the first flushing mode or the second flushing mode is selectively performed.