公开(公告)号：US06360070B1

公开(公告)日：2002-03-19

申请号：US09431478

申请日：1999-11-01

申请人： Kyosuke Taka ,  Kazunobu Takahashi ,  Hidekazu Sakagami ,  Nobuo Manabe ,  Yoshikazu Harada ,  Shoichi Fukutome

发明人： Kyosuke Taka ,  Kazunobu Takahashi ,  Hidekazu Sakagami ,  Nobuo Manabe ,  Yoshikazu Harada ,  Shoichi Fukutome

IPC分类号： G03G1501

CPC分类号： G03G15/5008 ,  G03G15/0194 ,  G03G2215/00042 ,  G03G2215/0119

摘要： Assuming the photosensitive drum for black as a reference, the phase of the adjacent photosensitive drum for cyan leads by about 60 deg. Similarly, the phase of the photosensitive drum for magenta leads by about 120 deg., and the phase of the photosensitive drum for yellow leads by about 180 deg. The phase of each photosensitive drum is shifted to thereby make it possible to shift the phase of driving unevenness. By shifting the phase, even the distance between adjoining transfer positions corresponding to the image forming stations is set shorter than the circumference of the photosensitive drum, the variation of each photosensitive drum due to driving unevenness with respect to the printing medium passing through the transfer position can be kept congruent with the others.

摘要翻译： 假设用于黑色的感光鼓作为参考，相邻的青色感光鼓的相位引导约60度。 类似地，用于洋红色的感光鼓的相位相差约120度，并且用于黄色的感光鼓的相位相差约180度。 移动每个感光鼓的相位，从而可以使驱动不均匀的相位移动。 通过移动相位，即使对应于图像形成站的相邻传送位置之间的距离设定为短于感光鼓的周长，由于相对于通过传送位置的打印介质的驱动不均匀而导致的每个感光鼓的变化 可以与其他人保持一致。

公开(公告)号：US07106942B2

公开(公告)日：2006-09-12

申请号：US09842036

申请日：2001-04-26

申请人： Kyosuke Taka ,  Shoichi Fukutome ,  Kazunobu Takahashi ,  Hidekazu Sakagami ,  Takao Horiuchi ,  Yoshitaka Okahashi

发明人： Kyosuke Taka ,  Shoichi Fukutome ,  Kazunobu Takahashi ,  Hidekazu Sakagami ,  Takao Horiuchi ,  Yoshitaka Okahashi

IPC分类号： H04N9/00

CPC分类号： H04N1/0473 ,  G06K15/129 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/506 ,  H04N2201/04701 ,  H04N2201/04717 ,  H04N2201/04732 ,  H04N2201/04786

摘要： A set pattern image with no displacement is recorded onto recording paper. In this set pattern image, the centers of auxiliary patterns are displaced in an auxiliary scan direction off a referential straight line passing through the centers of primary patterns. The image forming apparatus causes the set pattern image to be read, measures the displacements of the auxiliary patterns in the auxiliary scan direction off the referential straight line, and compensates for the displacements, such as by adjusting writing timings in the auxiliary scan direction so that the displacements become zero.

摘要翻译： 将没有位移的设定图案图像记录在记录纸上。 在该设定图案图像中，辅助图案的中心在辅助扫描方向上偏离通过主图案中心的参考直线。 图像形成装置使得设置的图案图像被读取，测量辅助图案在辅助扫描方向上离开参考直线的位移，并且通过调整辅助扫描方向上的写入定时来补偿位移，使得 位移变为零。