摘要:
One end portion of a connecting member 31 is connected to a first housing 1 such that the connecting member 31 is rotatable about a first rotation axis L1 fixed in position with respect to the first housing 1. The other end portion of the connecting member 31 is connected to a second housing 2 such that the connecting member 31 is rotatable about a second rotation axis L2 fixed in position with respect to the second housing 2 and extending parallel to the first rotation axis L1. The first housing 1 and the second housing 2 are located in different locations in a direction of the first and the second rotation axes L1, L2 such that a top surface 1a of the first housing 1 and an undersurface 2b of the second housing 2 are located generally on a same plane.
摘要:
One end portion of a connecting member 31 is connected to a first housing 1 such that the connecting member 31 is rotatable about a first rotation axis L1 fixed in position with respect to the first housing 1. The other end portion of the connecting member 31 is connected to a second housing 2 such that the connecting member 31 is rotatable about a second rotation axis L2 fixed in position with respect to the second housing 2 and extending parallel to the first rotation axis L1. The first housing 1 and the second housing 2 are located in different locations in a direction of the first and the second rotation axes L1, L2 such that a top surface 1a of the first housing 1 and an undersurface 2b of the second housing 2 are located generally on a same plane.
摘要:
An apparatus and method for accurately and rapidly correcting a printing characteristic of a printhead, a printhead whose printing characteristic is corrected by the above apparatus, and a printing apparatus using the printhead. In the apparatus for correcting the printing characteristic of the printhead, n kinds of printing control signal patterns are used to a full line printhead, printing patterns are experimentally printed in response to the printing control signal patterns on a printing medium and a reference density distribution is generated from one of n kinds of the printing patterns printed. Then, one of the n kinds of printing control signal patterns is selected for each of a plurality of printing elements such that a density value on each pixel is equal or close to the reference density distribution. In this case, a similar selection is carried out on another reference density distribution generated on the basis of another one of the n kinds of printing patterns, and an optimum one of the n kinds of printing control signal patterns is determined as correction data.
摘要:
According to the present invention, a liquid jet recording head assembly method comprises the steps of assembling a pressing member with a reference member to which an element substrate is fixed, charging a forcing spring provided for the pressing member to obtain a gap through which a grooved top plate can be inserted, assembling, by means of the gap, the grooved top plate with the element, and releasing the charging of the forcing spring and using the force exerted by the forcing spring to press the grooved top plate against the element substrate, so as to secure the grooved top plate to the element substrate.
摘要:
One end portion of a connecting member 31 is connected to a first housing 1 such that the connecting member 31 is rotatable about a first rotation axis L1. The other end portion of the connecting member 31 is connected to a second housing 2 such that the connecting member 31 is rotatable about a second rotation axis L2 parallel to the first rotation axis L1. The first and the second housings 1, 2 are arranged such that when the second housing 2 is rotated up to a predetermined intermediate position, opposite end portions of the first housing 1 in a direction perpendicular to the first and the second rotation axes L1, L2 are protruded from the second housing 2 in the said direction.
摘要:
A hinge assembly comprising a movable member 5 and a fixed member 6 rotatably connected to each other and a coiled spring (not shown) biasing the movable member 5 toward the fixed member 6. A receiving recess 11 is formed in an opposing surface 5b of the movable member 5 facing the fixed member 6. A spherical body 8 is received in the receiving recess 11 such that the spherical body 8 is movable in a circumferential direction of the movable member 5. A first cam portion 13a is formed in an opposing surface of the fixed member 6 facing the movable member 5. Rotation of the movable member 5 in a direction of an arrow causes the cam portion 13a to be abutted against the spherical body 8. The cam portion 13a converts a biasing force of the coiled spring into a rotational biasing force. The rotational biasing force causes the spherical body 8 to be rapidly abutted against a first hitting portion 11a of the receiving recess 11 and thereby to generate a clicking sound.
摘要:
A liquid discharge recording head includes a recording element with a discharge port for discharging liquid and an electrically connecting portion arranged adjacent to the discharge port and receiving an electric signal for controlling the discharge of the discharge port. The liquid discharge recording head further includes a flexible wiring substrate for covering at least a portion of the recording element. The flexible wiring substrate includes each of a device hole for exposing the discharge port and a bonding hole arranged facing the electrically connecting portion independently. The liquid discharge recording head further includes a sealing agent for covering at least a portion of the electrically connecting portion and filled to at least a portion of the bonding hole. Thus, a liquid discharge recording head that enhances recording performance and that has superior productivity while maintaining reliability of the recording performance is provided.
摘要:
A method for correcting a recording head is provided to solve the problems of density unevenness in recorded images. The density comparison is made with the reference density for a predetermined unit in the density distribution of an image recorded by the application of n kinds of signals. Then, one of the n kinds of signals which is close to the reference density is selected. The properties of the signal thus selected are transmitted to the recording head together with the correction data, hence correcting density unevenness.
摘要:
A method for manufacturing a liquid jet recording head comprises of the steps of calculating the difference between the distance B from the first heater on the element substrate to the cut face of the element substrate and the distance A from the first flow path groove on the ceiling plate to the abutment reference of the ceiling plate, measuring the amounts of deviation in the positional precisions in the state where the element substrates and the ceiling plates are actually positioned, working out a correction value from the distributional condition of such deviations, feeding back the correction value for determining the corrected amount of retraction. Then, after the abutment reference of the ceiling plate is allowed to abut upon the cut face of the element substrate by means of a push jig, retraction is performed by moving the ceiling plate by means of a retraction jig in the reverse direction with respect to the element substrate, hence positioning the ceiling plate and the element substrate. With the method thus arranged, it is made possible to perform positioning in a higher precision at lower costs with a shorter tact time, thus manufacturing a highly precise and highly reliable liquid jet recording head.
摘要:
A manufacturing method for a liquid ejecting unit having a comb-like separation wall, a displaceable member and a grooved member mating with the comb-like separation wall includes engaging the separation wall with the grooved member while being positioned by an abutment reference.