摘要:
An ink jet recording head comprises a grooved ceiling plate provided with a plurality of discharge openings for discharging ink, and a plurality of ink flow path grooves to form ink flow paths conductively connected with the discharge openings, a plurality of elemental substrates provided with a plurality of electrothermal transducing devices to generate thermal energy used for discharging ink, and a metallic pressure member for pressing the plurality of elemental substrates to be in contact with the grooved ceiling plate. The grooved ceiling plate and the elemental substrates are coupled to enable the ink flow path grooves and the electrothermal transducing devices to correspond to each other for the formation of ink flow paths. Here, the pressure member presses the reverse side of the surface of the elemental substrates having the electrothermal transducing devices provided therefor in order to couple the elemental substrates with the grooved ceiling plate. With the structure thus arranged, heat generated by the elemental substrates is efficiently transferred to the pressure member for radiation even for an ink jet recording head having no base plate or having a smaller base plate than the conventional one, while coupling the substrates and ceiling plate closely and reliably for the attainment of high quality recording.
摘要:
The present invention provides an ink jet recording head comprising a top plate in which two groups of ink passage grooves for forming ink passages, two ink chamber frames, ink introduction passages, two rows of ink discharge ports are formed, two substrates on which a plurality of resistive heat generating elements for discharging ink are formed in correspondence to the two rows of ink discharge ports, and two elastic members for contacting under pressure and securing the substrates and the top plate for each said substrate, and wherein the junction between the substrates and the top plate forms the ink passages and the ink chambers therebetween, and further wherein a groove for isolating the ink discharge port rows from each other is formed between the ink discharge port rows and a depth of the groove is greater than depths of the ink discharge ports and the ink passages.
摘要:
An ink jet head cartridge having a recording head without an ink container includes a casing with an ink ejection device; and a structural member on the casing for improving handling of the recording head.
摘要:
An ink jet printer for recording on a recording medium by discharging the ink supplied from an ink storing member from an ink jet head to the recording medium is disclosed. The ink jet printer comprises a mount portion for mounting detachably the ink storing member, a space for receiving said mount portion, and a recording selection unit for selecting a first recording mode in which a first ink storing member received within the space is mounted on the mount portion in recording, or a second recording mode in which a second ink storing member large enough not to be received within the space is mounted on the mount portion in recording.