Color management is always enabled since RGB data must always be converted for CMYK output using the ink cartridges installed in the printer.
The profile set as the default profile in the ICC profile list is selected by default (see Tell me about ICC profiles). To use profiles other than the default profiles defined in the profile management, you must explicitly specify and enable them for the respective transformation.
For Color Management, two different methods are available. The method to be selected depends on your goal:
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If the printer is used as a "classical" color printer, choose Color Management for Print. This method is also used when data arriving from a remote process are to be printed.
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If you want to use the HP Designjet 50ps printer as a proofer (i.e. to simulate a print process so that you can evaluate the result prior to the final output), choose Color Management for Proof.
When you enable Automatic Black Replacement, a special profile for CMYK is applied during conversion. It causes black portions to be partially composed from Cyan, Magenta and Yellow and enhances the representation of highlights and midtones (e.g. shadows in portraits) where the black and CMY ink coverage differs.
Note: These Color Management options are not available for virtual printers of the remote type because, in this case, the actual printing process is carried out on another printer and must be adapted there. Refer also to:
Tell me about color management--special issues with remote printers
For detailed information on the individual settings, please refer to:
Tell me about color management--settings
For further information on the topic of color management, refer to:
and to the Color Management Tutorial.
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