摘要:
An image capturing unit includes: a sensor unit that captures an image of a predetermined area including an image capture object; a reference chart portion that is disposed in the predetermined area and an image of which is captured together with an image of the image capture object by the sensor unit; an illumination light source that illuminates the image capture object and the reference chart portion; and a specular reflection preventing member that prevents that specular reflection light of light emitted from the illumination light source enters the sensor unit.
摘要:
An image capturing unit includes a sensor section that images a predetermined range including a subject; a reference chart section that is imaged by the sensor section with the subject; and an illumination light source that illuminates the subject and the reference chart section. The illumination light source is arranged at a position where a mirror reflection region that mirror reflects light entering from the illumination light source to the sensor section is outside a region of the subject and the reference chart section.
摘要:
An image capturing unit includes a sensor unit that captures a predetermined area including a subject; a reference chart that is arranged in the predetermined area and captured together with the subject by the sensor unit; an optical path length changing member that is arranged on an optical path extending from the subject to the sensor unit and is capable of changing a length of the optical path.
摘要:
A liquid ejection apparatus includes a conveying unit, a winding unit, a printing unit, and a rotation control unit. The conveying unit is configured to intermittently convey a printing medium by a predetermined feed amount. The winding unit is configured to wind the printing medium conveyed by the conveying unit. The printing unit is configured to perform printing on the conveyed printing medium. The rotation control unit is configured to control the winding unit to rotate in a winding direction at a predetermined timing after the conveying unit has started to convey the printing medium intermittently, and then cause the winding unit to rotate in a reverse direction opposite to the winding direction.
摘要:
A liquid ejection apparatus includes a conveying unit, a winding unit, a printing unit, and a rotation control unit. The conveying unit is configured to intermittently convey a printing medium by a predetermined feed amount. The winding unit is configured to wind the printing medium conveyed by the conveying unit. The printing unit is configured to perform printing on the conveyed printing medium. The rotation control unit is configured to control the winding unit to rotate in a winding direction at a predetermined timing after the conveying unit has started to convey the printing medium intermittently, and then cause the winding unit to rotate in a reverse direction opposite to the winding direction.
摘要:
According to an embodiment, an image forming apparatus includes: a carriage, on which a recording head is mounted, to be driven by a driving source to reciprocate; and a drive control unit that controls driving of the driving source by PWM control. The drive control unit includes a detecting unit that detects at least any one of a position and a velocity of the carriage, a calculating unit that calculates PWM command values from detection results output from the detecting unit, a storing unit that stores a maximum value and a minimum value of the PWM command values, a comparing unit that compares a difference between the maximum value and the minimum value against a predetermined threshold value, and a stop-output command unit that, when the difference between the maximum value and the minimum value exceeds the threshold value, outputs a command to stop driving of the carriage.
摘要:
A driver apparatus includes a drive unit to move a moveable unit along a given path using a drive force; a movement detector to detect movement of the moveable unit; a drive control unit to control the drive unit using a given output for a given time to drive the moveable unit; a determination unit to determine whether the movement detector detects a movement of the moveable unit for a given distance or more in a driving direction when the moveable unit is driven under a control of the drive control unit; and an abnormality detector to determine occurrence of abnormal when the determination unit determines that the moveable unit does not move the given distance or more.
摘要:
A liquid ejection apparatus includes a conveying unit, a winding unit, a printing unit, and a rotation control unit. The conveying unit is configured to intermittently convey a printing medium by a predetermined feed amount. The winding unit is configured to wind the printing medium conveyed by the conveying unit. The printing unit is configured to perform printing on the conveyed printing medium. The rotation control unit is configured to control the winding unit to rotate in a winding direction at a predetermined timing after the conveying unit has started to convey the printing medium intermittently, and then cause the winding unit to rotate in a reverse direction opposite to the winding direction.
摘要:
According to an embodiment, an image forming apparatus includes: a carriage, on which a recording head is mounted, to be driven by a driving source to reciprocate; and a drive control unit that controls driving of the driving source by PWM control. The drive control unit includes a detecting unit that detects at least any one of a position and a velocity of the carriage, a calculating unit that calculates PWM command values from detection results output from the detecting unit, a storing unit that stores a maximum value and a minimum value of the PWM command values, a comparing unit that compares a difference between the maximum value and the minimum value against a predetermined threshold value, and a stop-output command unit that, when the difference between the maximum value and the minimum value exceeds the threshold value, outputs a command to stop driving of the carriage.
摘要:
A liquid ejection apparatus includes a conveying unit, a winding unit, a printing unit, and a rotation control unit. The conveying unit is configured to intermittently convey a printing medium by a predetermined feed amount. The winding unit is configured to wind the printing medium conveyed by the conveying unit. The printing unit is configured to perform printing on the conveyed printing medium. The rotation control unit is configured to control the winding unit to rotate in a winding direction at a predetermined timing after the conveying unit has started to convey the printing medium intermittently, and then cause the winding unit to rotate in a reverse direction opposite to the winding direction.