摘要:
In a laser process apparatus, a plurality of holes each having a predetermined shape are formed in a work upon radiation of light from an excimer laser. The apparatus is provided with a mask, in which a plurality of predetermined small holes are formed in correspondence with the plurality of holes to be formed in the work, and which allows laser light from the excimer laser to pass through the small holes thereof toward the work, a projection optical system for projecting optical images each having a predetermined shape onto the work through the small holes of the mask, a measurement optical system for measuring a work position, and a moving stage for moving the work on the basis of a measurement result form the measurement optical system.
摘要:
An ink jet recording head is produced by forming in a first substrate a plurality of orifices for ejecting an ink droplet and a reference object for registration; forming in a second substrate ejection energy generating elements for supplying energy for ejecting the ink placed in liquid passages communicating with the orifices; and joining the first substrate and the second substrate together on the basis of the reference object for registration.
摘要:
An ink jet recording head is produced by forming in a first substrate a plurality of orifices for ejecting an ink droplet and a reference object for registration; forming in a second substrate ejection energy generating elements for supplying energy for ejecting the ink placed in liquid passages communicating with the orifices; and joining the first substrate and the second substrate together on the basis of the reference object for registration.
摘要:
An ink jet head includes a first member provided with an ejection energy generating element for generating energy contributable to ejection of ink; a second member provided with a recess for defining an ink passage with a trapezoidal cross-section by being coupled with the first member, corresponding to the ejection energy generating element; and a third member provided with an ejection outlet which communicates with the ink passage and through which the ink is ejected.
摘要:
An ink jet recording apparatus includes a liquid passage for ejection of ink; a liquid chamber for supplying ink to the passage; a device for mounting the recording head on the ink jet recording apparatus at an angle not more than 45 degrees relative to the horizontal plane; wherein the chamber has an internal surface which is slanted in a direction from an ink inlet thereof toward the liquid passage at the angle of 5-40 degrees relative to an extension of the liquid passage.
摘要:
A liquid jet head includes a heat generating element for producing a bubble to eject liquid from the head, a heat acting zone in which heat generated by the heat generating element produces a bubble in the liquid, a liquid supply passage adjacent the heat acting zone and having a liquid supply opening, with a center, for supplying liquid to the heat acting zone, and a liquid ejection passage adjacent the heat acting zone and having an orifice, with a center, through which the liquid is ejected, the liquid ejection passage including a diverging portion extending in a direction from the heat acting zone toward the orifice. A first plane that includes a first center line passing through the center of the orifice and along a direction of liquid ejection through the orifice, and a second plane that includes a second center line passing through the center of the liquid supply opening and along a direction of the supply of liquid from the liquid supply passage to the heat acting zone, cross in the diverging portion of the liquid ejection passage. At least a portion of the liquid supply passage and at least a portion of the diverging portion have a common, collinear surface substantially parallel to the second center line.
摘要:
A liquid jet recording head includes a heat generating element; a heat acting zone in which heat generated by the heat generating device acts on liquid; a liquid feeding passage adjacent to the heat acting zone having a liquid supply opening for supplying liquid to the heat acting zone; a liquid ejection passage adjacent the heat acting zone and having an orifice through which the liquid is ejected; wherein a center line passing through the center of the liquid supply opening along a direction of the liquid supply from the liquid supply passage to the heat acting zone is directly across a wall constituting the liquid ejection passage.
摘要:
An ink jet recording head wherein at least peripheral portions of discharge ports comprise a film which contains a polymer having a fluorine heterocyclic structure in the principal chain.
摘要:
In a liquid jet apparatus with ink discharging orifices and a recording apparatus using the same, each of the orifices has a trapezoidal cross-section, with at least the opposite bottom corners thereof having curved portions. The orifices preferably have a shape convergently tapering toward the outside of the recording head. The orifices are durable against temperature changes, impact, etc., which tend to cause cracking.
摘要:
An ink jet recording head, which can be used in a recording apparatus, is manufactured by preparing a first base plate provided with an energy generating structure for generating energy to discharge ink, preparing a second base plate provided with a discharge opening plate member on which are to be formed ink discharge openings for discharging the ink and recessed portions for forming ink flow paths, the ink flow paths being communicated with the discharge openings, and applying an ink repellant treatment on a surface of the discharge opening plate at a side where the ink is to be discharged in at least an area where the discharge openings are to be formed. The discharge opening is formed on the discharge opening plate by irradiating a laser beam on a rear surface of the discharge opening plate at the opposite side from where the ink is discharged, and the first base plate and second base plate are connected so that the energy generating structure and recessed portion face one another to form the ink flow paths.