摘要:
A liquid ejection head including a flow path forming member which forms an ejection orifice which is opened on a front surface and which ejects a liquid, and a liquid flow path which continues to the ejection orifice; and a substrate including a liquid chamber which is opened on a back surface on an opposite side of the front surface and which includes a first slope which becomes narrower from a back surface side toward a front surface side, a liquid pathway which is opened in the first slope and connects the liquid flow path and the liquid chamber, and a first hollow portion which is provided in a bottom portion of the liquid chamber.
摘要:
Provided is a process for producing a liquid ejection head including an ejection orifice member having a plurality of ejection orifices for ejecting liquid provided along an arrangement direction, the process including preparing a substrate provided with a resin layer which contains a photocurable resin;carrying out a first exposure treatment and a second exposure treatment which are each of an exposure treatment of subjecting the resin layer to exposure; and forming the ejection orifices of the resin layer subjected to the first exposure treatment and the second exposure treatment. An inclination angle of a side wall of the ejection orifices formed by the first exposure treatment with respect to the substrate differs from an inclination angle of a side wall of the ejection orifices formed by the second exposure treatment with respect to the substrate.
摘要:
Provided is a process for producing a liquid ejection head including an ejection orifice member having a plurality of ejection orifices for ejecting liquid provided along an arrangement direction, the process including preparing a substrate provided with a resin layer which contains a photocurable resin; carrying out a first exposure treatment and a second exposure treatment which are each of an exposure treatment of subjecting the resin layer to exposure; and forming the ejection orifices of the resin layer subjected to the first exposure treatment and the second exposure treatment. An inclination angle of a side wall of the ejection orifices formed by the first exposure treatment with respect to the substrate differs from an inclination angle of a side wall of the ejection orifices formed by the second exposure treatment with respect to the substrate.
摘要:
A liquid ejection head includes a member having ejection ports and dummy ejection ports. The ejection ports are provided in correspondence with energy-generating elements used in ejecting liquid. The dummy ejection ports are provided in correspondence with a light-receiving element outputting current whose level changes in accordance with the intensity of light applied thereto. By detecting the level of current that is output from the light-receiving element, the shapes of the ejection ports are estimated.
摘要:
A liquid ejection head includes a member having ejection ports and dummy ejection ports. The ejection ports are provided in correspondence with energy-generating elements used in ejecting liquid. The dummy ejection ports are provided in correspondence with a light-receiving element outputting current whose level changes in accordance with the intensity of light applied thereto. By detecting the level of current that is output from the light-receiving element, the shapes of the ejection ports are estimated.
摘要:
An ink jet recording head capable of maintaining ink supply capability for a long period of time, including a substrate provided with a plurality of energy generating elements and an ink supply port, and a flow path member which has a plurality of discharge ports, a plurality of ink flow paths in communication with the plurality of discharge ports, and a common liquid chamber in communication with the plurality of ink flow paths, in which the common liquid chamber is divided into a discharge port area and a drainage port area, the ink flows into the discharge port area through a filter, and in the case where a smallest diameter among the diameters of the discharge ports and the diameters of the ink flow paths is denoted by A and a largest diameter of openings of the filter is denoted by B, A≧B is satisfied.
摘要:
An ink jet recording head capable of maintaining ink supply capability for a long period of time includes a substrate provided with a plurality of energy generating elements and an ink supply port, and a flow path member which has a plurality of discharge ports, a plurality of ink flow paths in communication with the plurality of discharge ports, and a common liquid chamber in communication with the plurality of ink flow paths. The common liquid chamber is divided into a discharge port area and a drainage port area, and the ink flows into the discharge port area through a filter. In the case where a smallest diameter among the diameters of the discharge ports and the diameters of the ink flow paths is denoted by A and a largest diameter of openings of the filter is denoted by B, A≧B is satisfied.
摘要:
A method for manufacturing a liquid discharge head that includes a flow path wall member which forms a wall of a flow path communicating with a discharge port for discharging a liquid and a substrate which forms the flow path in contact with the flow path wall member includes providing a first layer, which is made of a photosensitive resin on the substrate, for forming a pattern having a shape of the flow path, providing a second layer which is capable of absorbing light within a photosensitive wavelength range of the photosensitive resin and has a shape corresponding to the shape of the flow path, on the first layer so as to come into contact with the first layer, performing patterning of the first layer which includes exposure of the first layer with the light using the second layer as a mask, and forming the pattern from the first layer, providing a cover layer which is made of a photosensitive resin and serves as the flow path wall member so as to cover the second layer and the pattern, forming the discharge port on the cover layer by performing patterning of the cover layer which includes exposure of the cover layer with the light, and forming the flow path by removing the second layer and the pattern.
摘要:
A method for manufacturing a liquid discharge head that includes a flow path wall member which forms a wall of a flow path communicating with a discharge port for discharging a liquid and a substrate which forms the flow path in contact with the flow path wall member includes providing a first layer, which is made of a photosensitive resin on the substrate, for forming a pattern having a shape of the flow path, providing a second layer which is capable of absorbing light within a photosensitive wavelength range of the photosensitive resin and has a shape corresponding to the shape of the flow path, on the first layer so as to come into contact with the first layer, performing patterning of the first layer which includes exposure of the first layer with the light using the second layer as a mask, and forming the pattern from the first layer, providing a cover layer which is made of a photosensitive resin and serves as the flow path wall member so as to cover the second layer and the pattern, forming the discharge port on the cover layer by performing patterning of the cover layer which includes exposure of the cover layer with the light, and forming the flow path by removing the second layer and the pattern.
摘要:
A liquid discharge recording head includes a flow passage forming member having discharge ports and a flow passage, the discharge ports configured to discharge droplets, the flow passage communicating with the discharge ports. The flow passage forming member also has a first opening and a second opening, the first opening provided at a surface of the flow passage forming member with the discharge ports, the second opening causing the inside of the first opening to communicate with the outside of the flow passage forming member through a communication passage.