Color Management of Prepress Color Equipment (3)

Printer and color management

Due to the large number of factors, the printer can be said to be the most difficult part of the color management system. The way in which color is represented by the printer is very different from how it behaves on a digital camera or scanner. This is a subtractive color method. The three primary colors are C, M, and Y. They are represented by toner and ink droplets. In order to achieve better performance in dark and dark, and to save printing costs, black ink is generally used.

There are many kinds of printing technologies, such as thermal, electrostatic, ink jet, etc. Paper has a great influence on printing because toner,

Dyes and other very complex interactions with the paper surface occur. For display devices, to generate their profile files may need to measure tens of hundreds of color patches; scanners and digital cameras need to measure about 200 color patches; and printers need to print and measure hundreds or even thousands of color patches, This is a painful process that often requires the provision of professional instruments worth several thousand dollars, which can take hours or even hours.

Printer manufacturers should consider adding a printer's self-test feature that eliminates the need to print hundreds of color patches and only a few key color patches. A more sophisticated color management system can then read and process these measurement information and generate a new profile file. The current development of color management technology has taken this into consideration, and printer manufacturers should also clearly recognize this and make their own efforts.

Points to note when designing a printer:

The printer is ready to communicate with the user to adjust the color.

Internal monitoring capabilities should be able to monitor the density and spectral data of printed colors.

The printer should be able to "download" paper and ink characteristics to some extent for use by the operating system and advanced color management software to control printer output.

Developers should not expect that users will be able to independently perform spectral measurements and generate profile profiles for color devices. Only prepress and other professional users can do this.

to sum up

To get a high-quality color image, keep in mind, "If you can't measure, you can't control it."

If hardware manufacturers can provide good communication and control for their products, operating system and color management software can compensate for the state drift of hardware devices. Future color management requires very few people to participate

Complete stable, high-quality color reproduction.

Device manufacturers should implement bidirectional communication between peripheral devices and computer operating systems and color management software for various parameter settings that affect color reproduction.

Mature color devices should allow the color management system to obtain any user-allowed device state drift information so that the device's profile file can be updated at any time.

Device parameters should be set by the color management system through the operating system, so that it can immediately reach the working status based on a previous color rendering performance.
Shandong Printing Network