Check color separation on screen

The color separation black-and-white print is usually printed on the printer. This first involves configuring a laser printer. Daily paper and toner consumption is also required. In addition, due to the paper format (commonly A3 format) and printer accuracy (up to 300 dpi The limitation of the fine line and the clarity of the pattern is affected, which is not conducive to inspection. Whether it can be directly on the computer screen to check the color separation effect, one can not use a printer, save paper, toner, save a lot of costs; more importantly, the color separation can be arbitrarily enlarged, easy to image subtle an examination.

We know that the working principle of commonly used P5 printers is to generate images by interpreting the received PS files. Using the printer's "print to file" function, when printing color separations, each color version is printed as a separate file. The file does not have an suffix, and you need to add a suffix ".eps". In the commonly used design software, the PS file in the FreeHand software cannot be displayed; when Photoshop looks at the PS file, it needs a bitmap, a slower speed, and a sharper resolution resolution; the ustrator can view the PS file in a vectorized manner. However, when explaining a more complex PS file, it sometimes makes a mistake and the screen display differs from the actual output. In contrast, CoreIDraw's interpretation of PS files is ideal, and complex and simple P5 files can be displayed correctly; each color separation file can also be copied to a file and the origin can be aligned. Simulation shows the actual Overprint situation.

The specific operation method: use the system to add a printer function to install a virtual printer, select a laser printer from the system provided printer, use the system's own driver to install, as shown in Figure 1. Some models have a format limit and can be recommended for Tektronix Phaser 600Extended. In this mode, the maximum width can reach AO. Normally, this output size is sufficient. Because the PS file is large, enough memory is needed to run the program, so the computer must have corresponding configuration in order to receive better observation results.

(Author/Wu Qiang Henan Xuchang Printing Co., Ltd.)

Sources of Information / Printing Technology 2005, 10 (Publishing and Commercial Printing)