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1. 发明授权

US5835123A Dot enhancement for laser imagers 失效
标题翻译：激光成像器的点增强
公开(公告)号：US5835123A
公开(公告)日：1998-11-10
申请号：US563780
申请日：1995-11-27
申请人： Jerry Yeeming Chung , Warangkana Tepmongkol
发明人： Jerry Yeeming Chung , Warangkana Tepmongkol
IPC分类号： B41J2/44 , H04N1/23 , H04N1/40 , H04N1/405 , B41J2/47
CPC分类号： H04N1/40037
摘要： Compensation for pixel aberrations in a laser printer is accomplished by selecting pixels to be augmented, and providing additional optical energy to the selected pixels. In one embodiment, the pixels are selected by selecting pixels in combinations in which required pixel augmentation is indicated. The additional optical energy may be applied at the sub-pixel level so that a threshold of energy depletion on an optical photoreceptor (OPR) is not reached where image development would occur. The energy applied at the sub-pixel level results in enhancement of the selected pixels at an adjacent pixel location.
摘要翻译：激光打印机中的像素像差的补偿通过选择要增大的像素并向所选择的像素提供附加的光能来实现。在一个实施例中，通过选择其中指示所需像素增加的组合的像素来选择像素。可以在子像素级施加附加的光能，使得在图像显影发生时不能达到光学感光体（OPR）上的能量消耗阈值。在子像素级处施加的能量导致在相邻像素位置处的所选像素的增强。

2. 发明授权

US5818504A Adjustment of dot size for laser imagers 失效
标题翻译：调整激光成像器的点尺寸
公开(公告)号：US5818504A
公开(公告)日：1998-10-06
申请号：US563781
申请日：1995-11-27
申请人： Jerry Yeeming Chung , Richard F. Beaufort
发明人： Jerry Yeeming Chung , Richard F. Beaufort
IPC分类号： B41J2/44 , H04N1/23 , H04N1/40 , H04N1/405 , B41J2/47
CPC分类号： H04N1/40037
摘要： Compensation for pixel aberrations in a laser printer is accomplished by altering pixels in accordance with pixel location. A projection of a scan line is skewed with respect to a line normal to the surface of an optical photoreceptor (OPR), which results in a change in the shape of projected pixels. Selected pixels are augmented in order to adjust their shape. The additional optical energy may be applied at the sub-pixel level so that a threshold of energy depletion on an optical photoreceptor (OPR) is not reached where image development would occur. Alternatively, the additional energy may be applied in a manner which provides additional development to simulate a pixel having a desired width across a scan line. The invention allows a scan line to be produced in which pixels across the scan line are made more uniform.
摘要翻译：通过根据像素位置改变像素来实现激光打印机中的像素像差的补偿。扫描线的投影相对于与光学感光体（OPR）的表面垂直的线倾斜，这导致投影像素的形状的变化。选择的像素被增加以便调整其形状。可以在子像素级施加附加的光能，使得在图像显影发生时不能达到光学感光体（OPR）上的能量消耗阈值。或者，附加能量可以以提供额外发展的方式来应用，以模拟跨越扫描线的期望宽度的像素。本发明允许产生扫描线，使扫描线上的像素更均匀。

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