HP Designjet T770 HP Designjet T770 & T1200 Printer series - Users Guide - Page 84

Color management provides the closest match that can be achieved on your printer; it also gives clear information on how close the emulation is to the original spot color. See Printing PANTONE swatch books on page 78. Color emulation Your printer can emulate the color behavior of other devices: RGB devices such as monitors, and CMYK devices such as presses and printers. You can set color emulation in the following ways: ● In the Windows PostScript driver dialog: select the Color tab, and Printer Managed Colors. ● In the Mac OS Print dialog: select the Color Options panel, then select Printer from the Color Management list. For a good emulation, the printer needs a specification of the colors these devices can reproduce. The standard way of encapsulating such information is in ICC profiles. As part of the solution, we provide the most common standards for the different devices. The options are as follows. CMYK color emulation A traditional workflow defines color in the CMYK space. For best results, the colors must be adjusted to the printer, because different printers will produce different colors from the same CMYK data. If the image file you are printing was not created specifically for your HP Designjet printer, it will require some readjustment, which can be done using one of the following options provided with your printer. ● None (Native): no emulation. The printer will use its default internal conversion from CMYK to RGB, without following any color standard. This does not imply that results will be bad ● U.S. Web Coated (SWOP) 2 uses specifications designed to produce quality separations using U.S. inks under the following printing conditions: 300% total area of ink coverage, negative plate, coated publication-grade stock. ● U.S. Web Uncoated 2 uses specifications designed to produce quality separations using U.S. inks under the following printing conditions: 260% total area of ink coverage, negative plate, uncoated white offset stock. ● U.S. Sheetfed Coated 2 uses specifications designed to produce quality separations using U.S. inks under the following printing conditions: 350% total area of ink coverage, negative plate, bright white offset stock. ● U.S. Sheetfed Uncoated 2 uses specifications designed to produce quality separations using U.S. inks under the following printing conditions: 260% total area of ink coverage, negative plate, uncoated white offset stock. ● Europe ISO Coated FOGRA27 is designed to produce quality separations for standard ISO 12647 printing under the following printing conditions: 350% total ink coverage, positive film, coated paper. ● Euroscale Uncoated 2 uses specifications designed to produce quality separations using Euroscale inks under the following printing conditions: 260% total area of ink coverage, positive plate, uncoated white offset stock. ● Japan Web Coated (Ad) uses specifications developed by the Japan Magazine Publisher Association for digital proofing of images in the Japanese magazine/advertising market. ● Japan Color 2001 Coated uses the Japan Color 2001 specification for type 3 (coated) paper. It is designed to produce quality separations using 350% total ink coverage, positive film and coated paper. 76 Chapter 8 Color management ENWW