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公开(公告)号：US07734243B2
公开(公告)日：2010-06-08
申请号：US11336901
申请日：2006-01-23
IPC分类号： G03G15/00
CPC分类号： G03G15/5008
摘要： In an image forming apparatus of the present invention, an idle roller once stops rotating when a front edge of a sheet conveyed reaches the idle roller. The idle roller restarts rotating at such a timing that a front edge of a toner image on a photoreceptor and a front edge of an image writing position on the sheet are aligned with each other. Then, even if a rear edge of the sheet is still in the idle roller, the idle roller stops rotating when the front edge of the sheet is sandwiched between a transfer roller and the photoreceptor. By carrying out such operations, it is possible to avoid by a very simple way an occurrence of a slip phenomenon that is a phenomenon of slipping of the sheet with respect to the photoreceptor while suppressing a reduction in image quality as much as possible. In addition, it is also possible to surely secure a blank space formed at a rear edge portion of the sheet.
摘要翻译： 在本发明的图像形成装置中，当传送的纸张的前缘到达空转辊时，空转辊一次停止旋转。 空转辊重新开始旋转，使得感光体上的调色剂图像的前边缘和片材上的图像书写位置的前边缘彼此对准。 然后，即使片材的后边缘仍然在空转辊中，当片材的前边缘夹在转印辊和感光体之间时，空转辊停止旋转。 通过进行这种操作，可以通过非常简单的方式避免出现作为尽可能多地抑制图像质量降低的片材相对于感光体的现象的滑动现象。 此外，还可以确保形成在片材的后边缘部分处的空白空间。
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公开(公告)号：US20060165452A1
公开(公告)日：2006-07-27
申请号：US11336901
申请日：2006-01-23
IPC分类号： G03G15/00
CPC分类号： G03G15/5008
摘要： In an image forming apparatus of the present invention, an idle roller once stops rotating when a front edge of a sheet conveyed reaches the idle roller. The idle roller restarts rotating at such a timing that a front edge of a toner image on a photoreceptor and a front edge of an image writing position on the sheet are aligned with each other. Then, even if a rear edge of the sheet is still in the idle roller, the idle roller stops rotating when the front edge of the sheet is sandwiched between a transfer roller and the photoreceptor. By carrying out such operations, it is possible to avoid by a very simple way an occurrence of a slip phenomenon that is a phenomenon of slipping of the sheet with respect to the photoreceptor while suppressing a reduction in image quality as much as possible. In addition, it is also possible to surely secure a blank space formed at a rear edge portion of the sheet.
摘要翻译： 在本发明的图像形成装置中，当传送的纸张的前缘到达空转辊时，空转辊一次停止旋转。 空转辊重新开始旋转，使得感光体上的调色剂图像的前边缘和片材上的图像书写位置的前边缘彼此对准。 然后，即使片材的后边缘仍然在空转辊中，当片材的前边缘夹在转印辊和感光体之间时，空转辊停止旋转。 通过进行这种操作，可以通过非常简单的方式避免出现作为尽可能多地抑制图像质量降低的片材相对于感光体的现象的滑动现象。 此外，还可以确保形成在片材的后边缘部分处的空白空间。
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公开(公告)号：US20060182477A1
公开(公告)日：2006-08-17
申请号：US11354858
申请日：2006-02-16
IPC分类号： G03G15/00
CPC分类号： G03G15/6564 , G03G2215/00409 , G03G2215/00599 , G03G2215/00645 , G03G2215/1614
摘要： An image forming apparatus of the present invention carries out an image processing with respect to a sheet size based on a print request and image information based on the print request, so as to obtain a write image on a photoreceptor. On the basis of a printing ratio of the write image obtained by the image processing, the image forming apparatus predicts the occurrence of an image elongation. If the image forming apparatus predicts that the image elongation occurs, the image forming apparatus calculates a bending amount of a bended portion on the basis of the difference between the peripheral velocity of a photoreceptor and the peripheral velocity of the idle roller, and the image forming apparatus variably controls the peripheral velocity of an idle roller so that the bending amount calculated is adjusted so as not to cause a slip phenomenon. With this, it is possible to avoid the occurrence of a phenomenon of slipping of a sheet with respect to the photoreceptor without lowering the image quality, and also possible to surely secure a blank space formed at a rear edge portion of the sheet.
摘要翻译： 本发明的图像形成装置基于打印请求和基于打印请求的图像信息执行关于纸张尺寸的图像处理，以便在感光体上获得写入图像。 基于通过图像处理获得的写入图像的打印率，图像形成装置预测图像延伸的发生。 如果图像形成装置预测图像伸长发生，则图像形成装置基于感光体的圆周速度与空转辊的圆周速度之间的差来计算弯曲部分的弯曲量，并且图像形成 设备可变地控制空转辊的圆周速度，以便调节所计算的弯曲量，以便不产生滑动现象。 由此，可以避免在不降低图像质量的情况下发生片材相对于感光体的滑动现象，并且还可以确保形成在片材的后边缘部分处的坯料空间。
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公开(公告)号：US07587165B2
公开(公告)日：2009-09-08
申请号：US11354858
申请日：2006-02-16
IPC分类号： G03G15/00
CPC分类号： G03G15/6564 , G03G2215/00409 , G03G2215/00599 , G03G2215/00645 , G03G2215/1614
摘要： An image forming apparatus carries out an image processing with respect to a sheet size and image information based on a print request to obtain a write image on a photoreceptor. On the basis of a printing ratio of the write image, the apparatus predicts occurrence of an image elongation. If the apparatus predicts that the image elongation occurs, the apparatus calculates a bending amount of a bended portion based on the difference between peripheral velocities of a photoreceptor and the idle roller, and the apparatus variably controls the peripheral velocity of an idle roller so that the bending amount is adjusted so as not to cause a slip phenomenon. It is possible to avoid the occurrence of a phenomenon of slipping of a sheet with respect to the photoreceptor without lowering image quality, and to surely secure a blank space formed at a rear edge portion of the sheet.
摘要翻译： 图像形成装置基于打印请求对纸张尺寸和图像信息进行图像处理，以在感光体上获得写入图像。 基于写入图像的打印率，该装置预测图像伸长的发生。 如果该装置预测图像伸长发生，则该装置基于感光体的周向速度与空转辊之间的差异来计算弯曲部分的弯曲量，并且该装置可变地控制空转辊的圆周速度，使得 调整弯曲量，不会产生滑动现象。 可以避免在不降低图像质量的情况下发生片材相对于感光体的滑动现象，并且可靠地确保形成在片材的后边缘部分处的坯料空间。
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公开(公告)号：US20060159498A1
公开(公告)日：2006-07-20
申请号：US11325352
申请日：2006-01-05
IPC分类号： G03G15/00
CPC分类号： G03G15/50 , G03G15/165
摘要： An image forming apparatus of the present invention carries out an image processing with respect to image information, requested to be printed, so as to obtain a write image which is to be written on a photoreceptor. Then, the image forming apparatus predicts the occurrence of an image elongation and specifies an image elongation occurring area on the basis of a printing ratio of the write image which is subjected to the image processing as above. If the occurrence of the image elongation is predicted, the amount of the image elongation occurring area to be shortened is calculated on the basis of the amount of the image elongation occurring area lengthened. The image forming apparatus carries out the image processing again so as to obtain the write image whose image elongation occurring area is shortened in accordance with the amount of the image elongation occurring area to be shortened. Finally, a process of printing the write image obtained as above is carried out. Thus, even if a slip phenomenon that is slipping of a sheet with respect to the photoreceptor occurs, it is possible to secure a blank space formed at a rear edge portion of the sheet. In addition, it is possible to express the original image on the sheet without cutting the image at the rear edge portion of the sheet in order to secure the blank space at the rear edge portion of the sheet.
摘要翻译： 本发明的图像形成装置对被请求打印的图像信息执行图像处理，以获得写入感光体的写入图像。 然后，图像形成装置预测图像伸长的发生，并且基于如上所述进行图像处理的写入图像的打印率来指定图像伸长发生区域。 如果预测到图像伸长的发生，则基于延长图像伸长发生区域的数量来计算要缩短的图像延伸发生区域的量。 图像形成装置再次执行图像处理，以便根据要缩短的图像延伸发生区域的量来获得其图像延长发生区域缩短的写入图像。 最后，执行如上所述获得的写入图像的打印处理。 因此，即使发生相对于感光体的片材滑动的滑动现象，也可以确保形成在片材的后缘部分的坯料空间。 此外，为了确保片材的后边缘部分处的毛坯空间，可以在片材上表现原始图像，而不会在片材的后边缘部分切割图像。
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公开(公告)号：US07539455B2
公开(公告)日：2009-05-26
申请号：US11325352
申请日：2006-01-05
IPC分类号： G03G15/00
CPC分类号： G03G15/50 , G03G15/165
摘要： An image forming apparatus of the present invention carries out an image processing with respect to image information which is to be printed. The image forming apparatus predicts the occurrence of an image elongation which may occur due to slippage of a recording material with respect to the electrostatic image drum, and specifies an image elongation occurring area on the basis of a printing ratio of the image information. If the occurrence of slippage, and thus image elongation is predicted, the amount of the image elongation occurring area to be shortened is calculated. The image information is then modified to obtain write image information that is shortened based on the calculated shortening amount. This write image information is then used to form the electrostatic latent image that is developed and transferred to a recording material. Thus, even slippage does occur, it is possible to accurately form the desired image on the recording material.
摘要翻译： 本发明的图像形成装置对要印刷的图像信息进行图像处理。 图像形成装置预测由于记录材料相对于静电图像鼓的滑动而可能发生的图像伸长的发生，并且基于图像信息的打印率来指定图像伸长发生区域。 如果预测发生滑动，因此预测出图像伸长，则计算要缩短的图像延伸发生区域的量。 然后修改图像信息以获得基于计算的缩短量而缩短的写入图像信息。 然后将该写入图像信息用于形成显影并转印到记录材料上的静电潜像。 因此，确实发生了滑动，可以在记录材料上精确地形成所需的图像。
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公开(公告)号：US07386242B2
公开(公告)日：2008-06-10
申请号：US11315738
申请日：2005-12-22
IPC分类号： G03G15/00
CPC分类号： G03G15/36 , H04N1/0473 , H04N1/32609 , H04N1/32635 , H04N1/32683
摘要： An image forming apparatus of the present invention predicts the occurrence of an image elongation, in other words, predicts that an image transferred is lengthened on a sheet due to slipping of the sheet with respect to a photoreceptor at a transfer nip portion. If the occurrence of the image elongation is predicted, the amount of a rear edge portion to be deleted from an electrostatic latent image is obtained on the basis of a sheet rear edge void setting change table, the amount of the rear edge portion to be deleted is added to the default amount of a rear edge void, a portion corresponding to the rear edge portion of an image of image information is deleted, and a printing process is carried out. In this way, even if a slip phenomenon occurs, in other words, the sheet slips with respect to the photoreceptor, it is possible to surely secure a blank space at a rear edge portion of the sheet.
摘要翻译： 本发明的图像形成装置预测图像伸长的发生，换句话说，预测由于片材相对于转印夹持部分处的感光体的滑动而使片材上的图像被转印在片材上。 如果预测到图像伸长的发生，则基于片材后边缘空隙设置改变表，获得要被删除的后边缘部分的量，从静电潜像中删除的后边缘部分的数量 添加到后边缘空白的默认量，删除与图像信息的图像的后边缘部分相对应的部分，并且执行打印处理。 以这种方式，即使发生滑动现象，换句话说，片材相对于感光体滑动，可以可靠地固定片材的后边缘部分的坯料空间。
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公开(公告)号：US20060140654A1
公开(公告)日：2006-06-29
申请号：US11315738
申请日：2005-12-22
IPC分类号： G03G15/00
CPC分类号： G03G15/36 , H04N1/0473 , H04N1/32609 , H04N1/32635 , H04N1/32683
摘要： An image forming apparatus of the present invention predicts the occurrence of an image elongation, in other words, predicts that an image transferred is lengthened on a sheet due to slipping of the sheet with respect to a photoreceptor at a transfer nip portion. If the occurrence of the image elongation is predicted, the amount of a rear edge portion to be deleted from an electrostatic latent image is obtained on the basis of a sheet rear edge void setting change table, the amount of the rear edge portion to be deleted is added to the default amount of a rear edge void, a portion corresponding to the rear edge portion of an image of image information is deleted, and a printing process is carried out. In this way, even if a slip phenomenon occurs, in other words, the sheet slips with respect to the photoreceptor, it is possible to surely secure a blank space at a rear edge portion of the sheet.
摘要翻译： 本发明的图像形成装置预测图像伸长的发生，换句话说，预测由于片材相对于转印夹持部分处的感光体的滑动而使片材上的图像被转印在片材上。 如果预测到图像伸长的发生，则基于片材后边缘空隙设置改变表，获得要被删除的后边缘部分的量，从静电潜像中删除的后边缘部分的数量 添加到后边缘空白的默认量，删除与图像信息的图像的后边缘部分相对应的部分，并且执行打印处理。 以这种方式，即使发生滑动现象，换句话说，片材相对于感光体滑动，可以可靠地固定片材的后边缘部分的坯料空间。
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公开(公告)号：US07599647B2
公开(公告)日：2009-10-06
申请号：US11586726
申请日：2006-10-26
IPC分类号： G03G15/02
CPC分类号： G03G15/0266 , G03G15/0291 , G03G2215/027
摘要： In an image forming apparatus of the present invention, a scorotron charging device has a meshed grid electrode which is meshed more coarsely in a high-speed apparatus than a meshed grid electrode in a low-speed apparatus according to a circumferential velocity of a photoreceptor. With this arrangement, it is possible to charge the photoreceptor at a predetermined potential in the high-speed apparatus, without increase of the amount of ozone generation and upsizing of the image forming apparatus.
摘要翻译： 在本发明的图像形成装置中，根据感光体的圆周速度，在低速装置中，烤火焰充电装置具有在高速装置中比网状网格电极更粗略地网格化的网状电极。 通过这种布置，可以在不增加图像形成装置的臭氧产生量和增大尺寸的情况下，在高速装置中以预定电位对感光体进行充电。
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公开(公告)号：US20070098445A1
公开(公告)日：2007-05-03
申请号：US11586726
申请日：2006-10-26
IPC分类号： G03G15/02
CPC分类号： G03G15/0266 , G03G15/0291 , G03G2215/027
摘要： In an image forming apparatus of the present invention, a scorotron charging device has a meshed grid electrode which is meshed more coarsely in a high-speed apparatus than a meshed grid electrode in a low-speed apparatus according to a circumferential velocity of a photoreceptor. With this arrangement, it is possible to charge the photoreceptor at a predetermined potential in the high-speed apparatus, without increase of the amount of ozone generation and upsizing of the image forming apparatus.
摘要翻译： 在本发明的图像形成装置中，根据感光体的圆周速度，在低速装置中，烤火焰充电装置具有在高速装置中比网状网格电极更粗略地网格化的网状电极。 通过这种布置，可以在不增加图像形成装置的臭氧产生量和增大尺寸的情况下，在高速装置中以预定电位对感光体进行充电。
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