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公开(公告)号：US20090080920A1
公开(公告)日：2009-03-26
申请号：US11771121
申请日：2007-09-25
IPC分类号： G03G15/00
CPC分类号： G03G15/0131 , G03G15/5058 , G03G2215/00059 , G03G2215/00063 , G03G2215/0164
摘要： The present disclosure relates to a method, system and apparatus for calibrating an image forming device using a toner patch sensor which emits and detects light in at a given wavelength. A plurality of toner patches may be deposited onto a control surface, wherein the toner patches include a first toner patch including a first toner, a second toner patch including the first toner deposited over a second toner, and a third toner patch including the second toner. Signals indicative of the reflectivity of the plurality of toner patches and the control surface may be measured by emitting light of a given wavelength in the infrared spectrum and detecting the amount of incident light reflected from said plurality of toner patches and said control surface. The signals indicative of reflectivity may then be used to adjust operating parameters of the image forming device which may then control toner mass density.
摘要翻译： 本公开涉及一种使用发射和检测给定波长的光的调色剂片传感器来校准图像形成装置的方法，系统和装置。 多个调色剂贴片可以沉积到控制表面上，其中调色剂贴片包括第一调色剂贴片，包括第一调色剂，包括沉积在第二调色剂上的第一调色剂的第二调色剂贴片和包括第二调色剂的第三调色剂贴片 。 可以通过在红外光谱中发射给定波长的光并检测从所述多个调色剂片和所述控制表面反射的入射光的量来测量指示多个调色剂片和控制表面的反射率的信号。 然后可以使用指示反射率的信号来调整图像形成装置的操作参数，然后可以控制调色剂质量密度。
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公开(公告)号：US4763137A
公开(公告)日：1988-08-09
申请号：US914032
申请日：1986-10-01
申请人： Brian W. Damon , Cary P. Ravitz , Carl J. Voss
发明人： Brian W. Damon , Cary P. Ravitz , Carl J. Voss
CPC分类号： B41J2/3551 , B41J2/365 , B41J2/375 , B41J33/54
摘要： Heat accumulation in a thermal printhead is controlled by printing blocks of data along the print line in two passes when examination of the data shows the potential of excessive heating. The proportion of heat intensive or black parts in each block is determined by data processor 17 by examining the data for a line in memory 19. An accumulation is made assigning blocks having high heat density minus 2, blocks having intermediate heat density minus 1 and blocks having low heat density plus 1. When that figure is at minus two the next block is not printed until a second pass and the accumulation is set to zero. Where the accumulation is minus 1, print power is reduced for the next block, which is printed in the first pass. Excessive heat in the printhead results in machine damage and impaired print quality. A second pass is completely avoided where the data is such that this is unnecessary. This offers the potential of feeding ribbon only in blocks being printed, although ribbon feeding may be continued to achieve additional cooling.
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公开(公告)号：US07995939B2
公开(公告)日：2011-08-09
申请号：US11771121
申请日：2007-09-25
IPC分类号： G03G15/00
CPC分类号： G03G15/0131 , G03G15/5058 , G03G2215/00059 , G03G2215/00063 , G03G2215/0164
摘要： The present disclosure relates to a method, system and apparatus for calibrating an image forming device using a toner patch sensor which emits and detects light in at a given wavelength. A plurality of toner patches may be deposited onto a control surface, wherein the toner patches include a first toner patch including a first toner, a second toner patch including the first toner deposited over a second toner, and a third toner patch including the second toner. Signals indicative of the reflectivity of the plurality of toner patches and the control surface may be measured by emitting light of a given wavelength in the infrared spectrum and detecting the amount of incident light reflected from said plurality of toner patches and said control surface. The signals indicative of reflectivity may then be used to adjust operating parameters of the image forming device which may then control toner mass density.
摘要翻译： 本公开涉及一种使用发射和检测给定波长的光的调色剂片传感器来校准图像形成装置的方法，系统和装置。 多个调色剂贴片可以沉积到控制表面上，其中调色剂贴片包括第一调色剂贴片，包括第一调色剂，包括沉积在第二调色剂上的第一调色剂的第二调色剂贴片和包括第二调色剂的第三调色剂贴片 。 可以通过在红外光谱中发射给定波长的光并检测从所述多个调色剂片和所述控制表面反射的入射光的量来测量指示多个调色剂片和控制表面的反射率的信号。 然后可以使用指示反射率的信号来调整图像形成装置的操作参数，然后可以控制调色剂质量密度。
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4.发明授权Methods and systems for estimating single or multi-color toner coverage on a printer page 有权用于在打印机页面上估计单色或多色墨粉覆盖度的方法和系统公开(公告)号：US07359088B2
公开(公告)日：2008-04-15
申请号：US10688110
申请日：2003-10-16
CPC分类号： H04N1/4076
摘要： Methods and systems for estimating single or multi-colored toner coverage on a printed page. One method includes generating color plane bitmaps corresponding to each color in a contone bitmap and calculating pixel coverage values for each of the color plane contone bitmaps. Another method includes receiving image data to be printed, generating color separations for the image data corresponding to available toner colors, printing each color separation on a printed page, scanning each printed page comprising the color separation and calculating toner coverage on each of the scanned printed pages.
摘要翻译： 用于估算打印页面上单色或多色调色剂覆盖率的方法和系统。 一种方法包括在连续色调位图中生成对应于每种颜色的彩色平面位图，并且计算每个彩色连续色调位图的像素覆盖值。 另一种方法包括接收要打印的图像数据，产生对应于可用调色剂颜色的图像数据的分色，在打印页上打印每种颜色分离，扫描包括颜色分离的每个打印页面，并计算每个扫描打印的 页面。
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公开(公告)号：US07277111B2
公开(公告)日：2007-10-02
申请号：US11046038
申请日：2005-01-28
申请人： Alan S. Campbell , Cary P. Ravitz , John P. Richey
发明人： Alan S. Campbell , Cary P. Ravitz , John P. Richey
CPC分类号： B41J2/473 , G03G15/043 , G03G15/0435 , G03G15/326
摘要： An electrophotographic device comprises a printhead having at least one laser associated with a corresponding photoconductive surface. Where multiple laser beams are associated with the same photoconductive surface, the laser beams are spaced a predetermined distance from one another in a process direction, which is orthogonal to a scan direction in which the laser beams are swept. The electrophotographic device operates at one of at least two image transfer rates. A controller in the electrophotographic device selectively directs image data to the printhead based, at least in part, upon the selected image transfer rate, the facet resolution, and/or the desired output image resolution. The print speed can thus be adjusted over a relatively wide range.
摘要翻译： 电子照相装置包括具有至少一个与相应的光导表面相关联的激光器的打印头。 在多个激光束与相同的光电导表面相关联的情况下，激光束在与扫描激光束的扫描方向正交的处理方向上彼此隔开预定的距离。 电子照相设备以至少两个图像传送速率中的一种进行操作。 至少部分地基于所选择的图像传送速率，小平面分辨率和/或期望的输出图像分辨率，电子照相设备中的控制器选择性地将图像数据引导到打印头。 因此可以在相对较宽的范围内调整打印速度。
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公开(公告)号：US4740092A
公开(公告)日：1988-04-26
申请号：US885356
申请日：1986-07-14
摘要： Wear on the elements (5) of a printhead (3) is spread by shifting the region of use of the printhead line by line. Font (13) provides information as to whether any character in a line employs the upper three pels or the bottom three pels of a line. For each line which can be printed from different shift positions of the printhead, selection logic controls paper feed (15) to index platen (9) to the least used of a shifted position of printhead. Only those electrodes over the print line in each shifted position are used for printing. This distributes wear without requiring any special ribbon feed. The three pel height is at least as wide as the serifs on most characters, which avoids some electrodes being used for the serifs of given characters in more than one shift position.
摘要翻译： 通过逐行移动打印头的使用区域来扩展打印头（3）的元件（5）上的磨损。 字体（13）提供关于一行中的任何字符是否采用一行的上三个像素或三个三像素的信息。 对于可以从打印头的不同移位位置打印的每条线，选择逻辑控制供纸（15）以将压板（9）分度至最少使用打印头的偏移位置。 只有在每个移位位置的打印线上的那些电极才能用于打印。 这不需要任何特殊的丝带进给，从而分配磨损。 三个像素高度至少与大多数字符上的衬线一样宽，这避免了一些电极用于多个位移中给定字符的衬线。
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