Abstract:
In one embodiment, an image forming apparatus: forms, on both sides of a reference chart sheet 10, reference positioning images which are determined in advance relative to reference positions on both sides of the reference chart sheet 10; reads reference images through the image readable area from a plurality of parts on both sides of the reference chart sheet 10 or from the folded reference chart sheet 10; and adjusts image forming positions on both sides of a paper according to read-out information obtained from the reference images. The image forming positions are corrected on both sides of the paper which is greater in size than the image readable area of the image reader 11 by reading the images from multiple parts of the reference chart sheet 10 or from the folded reference chart sheet 10.
Abstract:
An image forming apparatus includes: a pattern generator for generating pattern data for recording a set of test patterns at respective specified positions thereof on the recording sheet; a positional deviation detector for detecting a positional deviation at each characteristic point included in the set of test patterns generated by the pattern generator, in the image data read from the recording sheet on which the image containing the set of test patterns has been formed, by comparing with a position of the proper output at each characteristic point; and a deviation correcting device for calculating operational values for a correction of each pixel with reference to the respective positional deviations of the characteristic points detected by the positional deviation detector and for carrying out a processing to eliminate the positional deviation of each pixel at the time of image formation by using the operational values.
Abstract:
An image forming apparatus includes a plurality of image forming stations each having an image carrier and forming an image on the image carrier; a mark detecting unit for detecting a plurality of registration correction marks formed on a recording medium by the plurality of image forming stations; a correction mechanism for correcting a position difference between images formed by the plurality of image forming stations in accordance with a detection result by the mark detecting unit; and a controller for independently controlling an image forming operation of each of the plurality of the image forming stations so that the image density of each of the registration correction marks formed by the plurality of image forming units has a different predetermined image density.
Abstract in simplified Chinese:一种测量影像传感芯片偏移之系统,系包括一测试图,具有一既定图案。一密接式影像传感器模块,具有多条排成一列之传感芯片,每一传感芯片配置有多个传感器,其包括位于相邻两威测芯片端点之传感器。一驱动设备及一控制系统,控制系统系用以控制驱动设备,使密接式影像传感器模块在一既定方向相对于测试图移动,该密接式影像传感器模块扫瞄该测试图,并取得位于相邻两传感芯片端点传感器所传感之信号波形,依此计算相邻两传感芯片端点之传感器之间距。
Abstract in simplified Chinese:本案关于一种多功能事务机及其扫描设备之校正定位方法,其中校正定位方法包括步骤: 监控扫描设备之移动;判断扫描设备之位置;依扫描设备之位置记录变量,其中变量系选自第一数値或第二数値,其系分别代表扫描设备位于扫描平台之第一区域或第二区域;依变量决定扫描设备之第一次移动方向;控制扫描设备朝第一次移动方向进行第一次移动扫描;判断扫描设备之第一次移动扫描是否行经校正定位结构;以及当扫描设备行经校正定位结构,控制扫描设备回到待命位置。