39results about How to "Suppression skew" patented technology

There is realized a self-aligning roller bearing with retainer that stabilizes the orientation of spherical rollers and prevents these spherical rollers from skewing, and which can be rotated at high speed, and furthermore which enables efficient lubricant feed into pockets 9. By rotating a turning tool 14 as it revolves, the surfaces on both sides in the circumferential direction of respective column sections are processed into concave curved surfaces that oppose a rolling surface of the respective spherical rollers across a pocket clearance into which lubricant oil can be fed. The length of the column sections 8c is less than the length in the axial direction of the spherical rollers, and greater than a half of the length, and an end portion of the side surface in the circumferential direction of the respective column sections 8c projects further in the circumferential direction than an intermediate portion thereof, and the spherical rollers are embraced in the pockets 9.A self-aligning roller bearing with a retainer enabling high speed operation by stabilizing the attitude of barrel shaped rollers to prevent the barrel shaped rollers from being skewed and the efficient feeding of a lubricant into pockets (9) and a method of manufacturing the retainer for the self-aligning roller bearing. In the self-aligning roller bearing, the both side faces of each column part (8c) in the circumferential direction are machined to recessed curved faces facing the rolling surface of each barrel shaped roller through pocket clearances allowing the lubricant to feed thereto with a cutting tool (14) revolving while rotating on its axis. Also, the length of each column part (8c) is set equal to or less than the axial length of each barrel shaped roller and more than the half of the axial length thereof, the side face tip portion of each column part (8c) in the circumferential direction are projected from the intermediate portion thereof in the circumferential direction.

Provided are an image forming device and an image forming control method. The invention provides an image forming device capable of inhibiting deflection during an execution process of printing. The image forming device (1) comprises a plurality of medium conveying portions for conveying a printed medium, a medium width detection sensor (53) for detecting the printed medium (Sp), a stability determination portion (71B) for determining whether the conveying stability of the printed medium (Sp) is good according to the relative position of the printed medium (Sp) relative to the plurality of medium conveying portions, a printing control portion (71A) for controlling a control portion (52) and forming printed images on the printed medium (Sp) when the conveying stability is determined to be good, and a reset control portion (71C) for controlling inform portions (91, 92) to inform the information for urging the reset of the printed medium (Sp) when the conveying stability is determined to be not good.

A linear guide device has a retaining piece (15) between two adjacent rollers (9). The retaining piece (15) has a retaining piece body (16) having left side-face section and a right side-face section that are parallel to the end face sections of the rollers (9), a first arm section (19) extending from the left side-face section of the retaining piece body (16) toward the end face sections of the two adjacent rollers (9) and fitting in a first guide groove (22) formed in one wall surface section of a circulation path (21), and a second arm section (20) provided on the right side-face section of the retaining piece body (16) so as to be parallel to the first arm section (19) and fitting in a second guide groove (23) formed in the other wall surface section of the circulation path (21). The heights of the retaining piece body (16) and the arm sections (19, 20) satisfy the conditional expression of (H1−H2) / 2<(Dw−W) / 2, where H1 is the height of the retaining piece body (16), in the direction perpendicular to the axial direction of a roller; H2 the height of the arm sections (19, 20) in the direction perpendicular to the axial direction of the roller; W the width of the guide grooves (22, 23) in the direction perpendicular to the axial direction of the roller; and Dw the diameter of the roller (9).

An ink cartridge prevents ink from leaking from a waste ink recovery chamber, and an inkjet printer in which ink does not leak from the ink supply needle of the ink cartridge holder. The ink cartridge 10 has an ink chamber 30 and a waste ink inlet 57 in the top of the ink cartridge 30. Ink overflowing the capacity of the waste ink recovery chamber 20 flows through an ink trap 22 and into the ink cartridge 30 from the waste ink inlet 57. The ink supply needle 7 of the inkjet printer 1 has an ink path 73, valve member 90, and coil spring 74. The valve member 90 moves between a closed position 90A and a open position 90B according to whether or not an ink cartridge 10 is installed, and prevents ink from leaking from the ink supply needle 7.

The present exemplary embodiments relate to devices and methods of processing data obtained by sensing a characteristic parameter of a sub pixel. A controller which receives a first clock signal and sensing data output from a data driver generates a second clock signal having a same phase as the first clock signal and outputs image data that is compensated based on the sensing data in accordance with the generated second clock signal to the data driver. By doing this, the controller generates the second clock signal using a part of the first clock signal output from the data driver and transmits the image data so that a skew or signal distortion which may be generated at the time of transmitting / receiving data is suppressed to improve sensing and compensation precision and suppress an image abnormality due to the sensing and compensation failure.

An image reading apparatus including an wall disposed on a first side of the image reading apparatus in a width direction orthogonal to a conveyance direction of a sheet is provided. The wall extends in a direction orthogonal to the width direction. The image reading apparatus further includes a first driven roller disposed on a second side in the width direction relative to the wall; a first driving roller opposed to the first driven roller; a first driven shaft inserted into the first driven roller and urged against the first driving roller; a second driven roller disposed on the second side relative to the first driven roller; a second driving roller opposed to the second driven roller; a second driven shaft inserted into the second driven roller and urged against the second driving roller; and a reader unit configured to read the image on the sheet.