公开(公告)号：US5163368A

公开(公告)日：1992-11-17

申请号：US639254

申请日：1991-01-09

申请人： Frank G. Pensavecchia ,  John P. Gardiner ,  John F. Kline ,  Thomas E. Lewis ,  Michael T. Nowak ,  Richard A. Williams ,  Stephen M. LaPonsey ,  Lawrence A. Howard

发明人： Frank G. Pensavecchia ,  John P. Gardiner ,  John F. Kline ,  Thomas E. Lewis ,  Michael T. Nowak ,  Richard A. Williams ,  Stephen M. LaPonsey ,  Lawrence A. Howard

IPC分类号： B41C1/05 ,  B41C1/04 ,  B41C1/055 ,  B41C1/10 ,  B41F7/02 ,  B41F31/02 ,  B41F33/00 ,  B41J2/525 ,  B41L19/00

CPC分类号： B41C1/04 ,  B41C1/1033 ,  B41C1/1066 ,  B41F7/02 ,  B41P2227/70 ,  B41P2235/23 ,  Y10S101/47

摘要： Printing apparatus has at least one print station including a blanket cylinder in rolling contact with an impression cylinder, a print cylinder for supporting a lithographic plate, the plate cylinder being in rolling contact with the blanket cylinder, at least one discharge source for applying an image to a plate supported by the plate cylinder, and a motor for moving the energy source relative to the plate cylinder so that when the plate cylinder is rotated, the discharge source scans a raster on the surface of the plate supported by the plate cylinder. The apparatus may be configured as an in-line or central-impression type press. A controller responsive to picture signals representing an original document repeatedly actuates each discharge source momentarily during the scan thereof so that the discharge source forms on the plate surface an image comprised of dots corresponding to the original document. The controller includes a dot-position look-up table for storing the x and y coordinates of substantially all dot positions on the plate and is arranged to actuate each energy source to form image dots at selected ones of the dot positions when said picture signals are present. The apparatus also includes provision for regulating the ink applied to the plate at each print station.

摘要翻译： 打印装置具有至少一个打印站，该打印站包括与压印滚筒滚动接触的橡皮布滚筒，用于支撑平版印版的打印滚筒，印版滚筒与橡皮滚筒滚动接触，至少一个用于施加图像的排出源 到由印版滚筒支撑的板，以及用于相对于印版滚筒移动能量源的马达，使得当印版滚筒旋转时，排出源扫描由印版滚筒支撑的印版的表面上的光栅。 该装置可以被配置为直列式或中央印模型压机。 响应于表示原稿的图像信号的控制器在其扫描期间重复地启动每个放电源，使得放电源在板表面上形成由与原始文档相对应的点组成的图像。 控制器包括一个点位置查找表，用于存储板上基本上所有点位置的x和y坐标，并且被布置成当所述图像信号是所述点位置时，使得每个能量源在选定的点位置形成图像点 当下。 该设备还包括用于调节在每个印刷站处施加到印版的油墨的装置。

公开(公告)号：US5182990A

公开(公告)日：1993-02-02

申请号：US836987

申请日：1992-02-14

申请人： John F. Kline ,  Frank G. Pensavecchia ,  Stephen M. LaPonsey ,  Richard A. Williams

发明人： John F. Kline ,  Frank G. Pensavecchia ,  Stephen M. LaPonsey ,  Richard A. Williams

IPC分类号： B41C1/10 ,  H04N1/053 ,  H04N1/06 ,  H04N1/50

CPC分类号： H04N1/053 ,  H04N1/50 ,  H04N1/06 ,  H04N2201/0471 ,  H04N2201/04772

摘要： A method of reducing printing artifacts in a printing apparatus including a plurality of printing plates, each of which is produced by successive scans of an array of imaging devices wherein the printing artifacts are caused by defective operation of one or more of the imaging devices. Printing artifacts are visually minimized by staggering the imaging devices used to produce separation plates. By staggering the imaging devices, the distance between artifacts can be reduced thereby causing the artifact reproduced in the final composite image to be less accentuated.

摘要翻译： 一种在包括多个印版的打印设备中减少打印伪影的方法，每个印版通过连续扫描成像装置阵列而产生，其中打印伪影是由一个或多个成像装置的不良操作引起的。 通过交错用于制造分离板的成像装置，使视觉上最小化印刷伪影。 通过交错成像装置，可以减少伪像之间的距离，从而导致在最终合成图像中再现的伪像不太突出。

公开(公告)号：US4936211A

公开(公告)日：1990-06-26

申请号：US234474

申请日：1988-08-19

申请人： Frank G. Pensavecchia ,  Richard A. Williams ,  John P. Gardiner ,  Stephen M. LaPonsey ,  John F. Kline

发明人： Frank G. Pensavecchia ,  Richard A. Williams ,  John P. Gardiner ,  Stephen M. LaPonsey ,  John F. Kline

IPC分类号： B41F7/02 ,  B41F7/10 ,  B41F13/00

CPC分类号： B41F13/0008 ,  B41F7/10

摘要： A low cost press able to print high quality continuous tone color copies comprises a single large diameter impression cylinder rotatably mounted to the machine frame. A plurality of print stations are spaced around the impression cylinder, each print station including a blanket cylinder in rolling contact with the impression cylinder and a plate cylinder in rolling contact with the blanket cylinder, the diameters of all of said plate and blanket cylinders being substantially the same and said impression cylinder having a diameter that is the same as or an even number more than the product of the plate cylinder diameter multiplied by the number of plate stations in the press. The cylinders are all rotatably coupled together by correspondingly sized gears so that they all rotate in unison with the impression cylinder gear being composed of arcuate parallel-cut segments having identical tooth profiles.

摘要翻译： 能够打印高质量连续色调的低成本印刷机包括可旋转地安装在机架上的单个大直径压印滚筒。 多个打印站围绕压印滚筒间隔开，每个打印站包括与压印滚筒滚动接触的橡皮布滚筒和与橡皮滚筒滚动接触的印版滚筒，所有印版和橡皮布滚筒的直径基本上 相同的和所述压印滚筒的直径与印版滚筒直径乘以印刷机台数的乘积相同或甚至更多。 气缸通过对应的大小的齿轮可旋转地联接在一起，使得它们都与由具有相同齿廓的弓形平行切割段组成的压印圆筒齿轮一致地旋转。

公开(公告)号：US5453777A

公开(公告)日：1995-09-26

申请号：US46085

申请日：1993-04-12

申请人： Frank G. Pensavecchia ,  John F. Kline ,  Stephen M. LaPonsey

发明人： Frank G. Pensavecchia ,  John F. Kline ,  Stephen M. LaPonsey

IPC分类号： B41J2/44 ,  B41J2/46 ,  G03G15/08 ,  G06K15/10 ,  H04N1/047 ,  H04N1/053 ,  H04N1/06 ,  H04N1/17 ,  H04N1/191 ,  H04N1/23 ,  B41J2/45

CPC分类号： H04N1/0678 ,  B41J2/46 ,  G06K15/10 ,  H04N1/0473 ,  H04N1/053 ,  H04N1/1912 ,  G06K2215/111 ,  H04N1/06 ,  H04N1/1911 ,  H04N2201/0414 ,  H04N2201/0471 ,  H04N2201/04767

摘要： In a digital imaging system including an array of imaging devices that image a substrate in a lateral series of adjacent longitudinal swaths, methods and apparatus for correcting device offset and hiding between regions imaged by adjacent devices. Along the direction of imaging (i.e., the dimension along which the imaging device(s) and the substrate move relative to one another during an imaging pass), adjustments take the form of compensating increases or decreases to the normal intervals between discharges to adjacent image points. Transverse to the direction of imaging, the invention compensates for imprecise device orientation and "seam" artifacts by, first, commencing imaging with the device having the greatest offset from proper orientation, and second, as a fine adjustment, repeating at least one imaging swath to produce intentional transverse overlap between adjacent swaths.

摘要翻译： 在数字成像系统中，包括对相邻纵向条带的横向系列中的基底进行成像的成像装置的阵列，用于校正由相邻装置成像的区域之间的装置偏移和隐藏的方法和装置。 沿着成像方向（即成像装置和衬底在成像通过期间相对于彼此移动的尺寸），调整采取补偿增加或减小到相邻图像的放电之间的正常间隔的形式 积分 本发明横向于成像方向，通过以下方式补偿不精确的装置取向和“接缝”伪影：首先，使用与正确取向最大偏移的装置开始成像，其次，作为微调，重复至少一个成像条带 以在相邻条之间产生有意的横向重叠。

公开(公告)号：US5174205A

公开(公告)日：1992-12-29

申请号：US639199

申请日：1991-01-09

申请人： John F. Kline ,  Frank G. Pensavecchia ,  Stephen M. LaPonsey ,  Richard A. Williams

发明人： John F. Kline ,  Frank G. Pensavecchia ,  Stephen M. LaPonsey ,  Richard A. Williams

IPC分类号： B41C1/04 ,  B41C1/10 ,  B41J2/51 ,  B41J2/525 ,  H04N1/053 ,  H04N1/06 ,  H04N1/23 ,  H04N1/50

CPC分类号： B41C1/1033 ,  H04N1/053 ,  H04N1/50 ,  H04N1/06 ,  H04N2201/0471 ,  H04N2201/04772

摘要： An apparatus and method for controlling discharge devices used to image a planographic printing plate are disclosed. Imaging information is stored in a first memory while discharge correction data is stored in a second memory. The correction data is used to vary the intervals between imaging discharges to compensate for error between the sensed position of the printing plate with respect to a writing head and the actual position. Printing artifacts are visually minimized by staggering the imaging devices used to produce separation plates.

摘要翻译： 公开了一种用于控制用于对平版印刷版进行成像的放电装置的装置和方法。 成像信息存储在第一存储器中，而放电校正数据被存储在第二存储器中。 校正数据用于改变成像放电之间的间隔，以补偿印刷板相对于书写头的感测位置与实际位置之间的误差。 通过交错用于制造分离板的成像装置，使视觉上最小化印刷伪影。