摘要:
There is provided an image processing apparatus having an image segmentation unit that divides image formation into image areas in a first direction, a random number memory that stores random numbers, a reference position determination unit that determines a reference position so as to vary in a second direction perpendicular to the first direction, a pixel determination unit that determines a pixel as a target to be subjected to correction processing of pixel insertion into or pixel reduction from each of the image areas, for the each of the image areas, according to the stored random numbers and the determined reference position, among pixels in the each of the image areas, and an image width change unit that performs the correction processing on the determined pixel to change an image width of the image information in the first direction.
摘要:
There is provided an image processing apparatus having an image segmentation unit that divides image formation into image areas in a first direction, a random number memory that stores random numbers, a reference position determination unit that determines a reference position so as to vary in a second direction perpendicular to the first direction, a pixel determination unit that determines a pixel as a target to be subjected to correction processing of pixel insertion into or pixel reduction from each of the image areas, for the each of the image areas, according to the stored random numbers and the determined reference position, among pixels in the each of the image areas, and an image width change unit that performs the correction processing on the determined pixel to change an image width of the image information in the first direction.
摘要:
Provided is an inkjet recording device that has a conveying unit for conveying a recording medium, plural recording head groups each structured by plural unit heads disposed along the conveying direction, and an ink receiving unit for receiving ink discharged from the unit heads. The recording head groups, correspond respectively to plural individual recording regions which are sectioned off in the recording medium transverse direction which is orthogonal to the conveying direction, are disposed so as to be at respectively different positions at adjacent individual recording regions along the conveying direction. The ink receiving unit is disposed so as to face ink drop discharging surfaces of the unit heads. The conveying unit is plural conveying belts disposed at positions evading trajectories of the ink drops from the unit heads as seen in a direction of a line normal to the recording medium so as to be divided in the conveying direction.
摘要:
Provided is an inkjet recording device that has a conveying unit for conveying a recording medium, plural recording head groups each structured by plural unit heads disposed along the conveying direction, and an ink receiving unit for receiving ink discharged from the unit heads. The recording head groups, correspond respectively to plural individual recording regions which are sectioned off in the recording medium transverse direction which is orthogonal to the conveying direction, are disposed so as to be at respectively different positions at adjacent individual recording regions along the conveying direction. The ink receiving unit is disposed so as to face ink drop discharging surfaces of the unit heads. The conveying unit is plural conveying belts disposed at positions evading trajectories of the ink drops from the unit heads as seen in a direction of a line normal to the recording medium so as to be divided in the conveying direction.
摘要:
An image forming apparatus has: a recording head having plural unit recording heads divided in a direction orthogonal to a moving direction of a recording medium; a detecting section detecting at least offset of an image recorded by a vicinity of an end portion, in the direction orthogonal to the moving direction of the recording medium, of the plural unit recording heads; and a correcting section correcting recording offset of the recording head on the basis of results of detection of the detecting section.
摘要:
An image forming apparatus has: a recording head having plural unit recording heads divided in a direction orthogonal to a moving direction of a recording medium; a detecting section detecting at least offset of an image recorded by a vicinity of an end portion, in the direction orthogonal to the moving direction of the recording medium, of the plural unit recording heads; and a correcting section correcting recording offset of the recording head on the basis of results of detection of the detecting section.
摘要:
An image forming apparatus having a plurality of light sources and printing an image carrier by collectively scanning an image carrier with beams from the plurality of light sources includes a screen processing unit for performing a screen process on input image data and a registration correction processing unit for performing skew correction on the image data on which the screen process has been performed and for performing an image shift process in the sub-scanning direction, which is a moving direction of the image carrier, based on a periodic characteristic of exposure by the collective scanning and the period of the screen by the screen process.
摘要:
A registration pattern is formed on an intermediate transfer belt by using one photosensitive body. Pattern parts transferred onto the intermediate transfer belt vary in spacing due to speed variation occurring at the transfer time. The passing timing of the registration pattern is read through a read section placed downstream from the photosensitive body and speed (position) variation is sensed. The sense data is gotten over several cycles of the intermediate transfer belt and a low-frequency component caused by thickness unevenness of the intermediate transfer belt is extracted. The extracted data is subjected to the effects of variations at both the formation time and read time of the registration pattern and thus is corrected of calculating true speed (position) variation data. For example, a drive roll is controlled based on the data and an image is formed.
摘要:
An image forming apparatus that performs registration control when forming an image on a recording medium includes: a correction value determining unit that determines correction values for correcting misregistration of an image; an image processing unit that alters at least a part of a pattern included in the image based on the correction values determined by the correction value determining unit; and a correction processing unit that performs alteration on the image, in which at least a part of the pattern has been altered by the image processing unit, based on the correction values determined by the correction value determining unit.
摘要:
A device for measuring a length of a recoding material, includes: a rotating body that rotates in contact with a recording material which is transported; a length measuring unit that measures a length of the recording material based on a rotation of the rotating unit; a detecting unit that detects at least one of a rotation and an oblique advance of the recording material; and a correcting unit that corrects a value measured by the length measuring unit based on an output of the detecting unit.