公开(公告)号：EP0119941A3

公开(公告)日：1987-07-15

申请号：EP84420053

申请日：1984-03-21

申请人： HOPE INDUSTRIES, Inc.

发明人： Hope, Henry F. ,  Hope, Stephen F. ,  Fidelman, David

IPC分类号： G03B27/80

CPC分类号： G03B27/735 ,  G03B27/80

摘要： The color printing control system has a color printer (58) and a microprocessor (14). The output of photocells (52a, 52b, 52c) which read color negatives is applied to the microprocessor (14) enabling it to calculate print time signals. These signals are applied to paddles (32, 34, 36) and move them into the light path of terminate light exposure. A print test probe (59) coupled to the microprocessor (14) reads the density of the prints and forms a feedback loop which allows the microprocessor to adjust its internal values. Color balancing is performed without knowledge of paper characteristics and without operator setup calculations. This is achieved using the difference in density between a reference print and prints made by the system as a basis for calculating correction factors which are applied to such values as slope to cause subsequent print time signals to result in correct density.

公开(公告)号：EP0119941A2

公开(公告)日：1984-09-26

申请号：EP84420053.5

申请日：1984-03-21

申请人： HOPE INDUSTRIES, Inc.

发明人： Hope, Henry F. ,  Hope, Stephen F. ,  Fidelman, David

IPC分类号： G03B27/80

CPC分类号： G03B27/735 ,  G03B27/80

摘要： The color printing control system has a color printer (58) and a microprocessor (14). The output of photocells (52a, 52b, 52c) which read color negatives is applied to the microprocessor (14) enabling it to calculate print time signals. These signals are applied to paddles (32, 34, 36) and move them into the light path of terminate light exposure. A print test probe (59) coupled to the microprocessor (14) reads the density of the prints and forms a feedback loop which allows the microprocessor to adjust its internal values. Color balancing is performed without knowledge of paper characteristics and without operator setup calculations. This is achieved using the difference in density between a reference print and prints made by the system as a basis for calculating correction factors which are applied to such values as slope to cause subsequent print time signals to result in correct density.

摘要翻译： 彩色打印控制系统具有彩色打印机（58）和微处理器（14）。 读取彩色底片的光电管（52a，52b，52c）的输出被施加到微处理器（14），使得其能够计算打印时间信号。 这些信号被施加到桨叶（32,34,36）并将它们移动到终止光照射的光路中。 耦合到微处理器（14）的打印测试探针（59）读取打印的浓度并形成反馈回路，其允许微处理器调整其内部值。 在不了解纸张特性并且没有操作员设置计算的情况下执行色彩平衡。 这是通过使用参考印刷品和由系统制成的印刷品之间的密度差作为计算校正因子的基础来实现的，所述校正因子被应用于诸如斜率的值，以引起随后的打印时间信号以产生正确的密度。