Toshiba GA-1120 manual RGB Separation Output/Simulation Output

44-41 Color Setup options

Rendering Style

Photographic/Presentation/Abs. Colorimetric/Rel. Colorimetric [Presentation]

The color rendering dictionary (CRD) defines how colors are converted from the RGB color space to device CMYK. Photographic, designed for images, retains the relative balance between colors to maintain the overall appearance of the image. Presentation, designed for bright colors, produces the saturated prints needed for most business presentations, but handles photographic images the same way as the Photographic CRD. Absolute Colorimetric provides the closest match to the CMYK device being simulated, including rendering the paper color as the background. Relative Colorimetric provides a close match to the CMYK device being simulated, regardless of the media used.

CMYK Sim. Profile

SWOP-Coated (EFI)/DIC (EFI)/Euroscale (EFI)/None [SWOP-Coated (EFI)]

CMYK simulation allows color correction to simulate printed output on a commercial press, so that the GA-1120 output can be used for proofing. The SWOP-Coated standard is used in the United States, DIC in Japan, and Euroscale in Europe. Custom simulations are user defined and named. The simulations provided with the GA-1120 have the designation “EFI” after their names.

If users create and load custom simulations on the GA-1120 with ColorWise Pro Tools, these also appear in the list of simulations. A custom simulation can be selected as the default simulation. For more information about custom simulations, see the Color Guide.

CMYK Sim. Method

Quick/Full (Source GCR)/Full (Output GCR) [Full (Output GCR)]

Quick simulation assumes that the copier toners match the printer’s inks, and all changes affect only one color (C, M, Y, or K) at a time. Full (Source GCR) simulation allows for more flexibility in matching toner to ink and all changes interact to maintain a better color balance. Full (Output GCR) offers accurate proofing by providing a colorimetric conversion of all four plates. In this simulation method, the black (K) plate is mixed into the CMY plates, then reseparated based on the Output profile.

RGB Separation

Output/Simulation [Output]

This option defines how the GA-1120 processes RGB jobs. Select Output for RGB jobs that you print to the final output device. Select Simulation to simulate an output device that is not the device to which you are printing.