11-12 GA-1120 Color Management - Toshiba

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RGB data CMYK data Spot color data 1-2 GA-1120 Color Management GA-1120 color management generates CMYK data to be sent to the copier. The following diagram illustrates the print options in the GA-1120 color management process that affect color data conversions. You access these print options when you send a print job to the GA-1120. Most of these options and settings are described in subsequent sections of this chapter. RGB Source Profile Gamma Phosphors White Point Rendering Style (CRD) Brightness Pure Black Text/Graphics RGB Separation Output profile CMYK Simulation Profile CMYK Simulation Method Brightness Pure Black Text/Graphics Output profile Spot Color Matching GA-1120 color processor Color data sent to copier RGB Source Profile is the only color option that applies strictly to RGB color data. The other options that affect RGB color also affect the more rarely used Lab, XYZ, and other calibrated color spaces. NOTE: For users who are familiar with PostScript 3 color, RGB Source Profile affects all CIEBasedABC color spaces (if the source space is RGB). If you send CMYK data to the GA-1120 in CIEBasedDEFG format, for example, by choosing PostScript Color Management in Adobe Photoshop, the GA-1120 Rendering Style selection— which normally affects only RGB data—will also affect this CMYK data.
1-3 Managing color on the GA-1120 Settings for the following options can be specified via print options when you send a job to the GA-1120. Some can also be set as defaults by the administrator during GA-1120 Setup or using ColorWise Pro Tools. Settings specified via print options override the defaults. GA-1120 color print option What it does Color Mode CMYK/Grayscale or Print Mode (Windows 98) Standard Color/Expert Color/Grayscale Rendering Style Photographic/Presentation/Relative Colorimetric/Absolute Colorimetric (Default set at Setup) Brightness 85% Lightest to 115% Darkest RGB Source Profile EFIRGB/sRGB (PC)/Apple Standard/Other/ Source 1-10/None (Default set at Setup or with ColorWise Pro Tools) (Other) Gamma 1.0/1.2/1.4/1.6/1.8/2.0/2.2/2.4/2.6/2.8/3.0 (Other) Phosphors Hitachi EBU/Hitachi-Ikegami/NTSC/ Radius Pivot/SMPTE/Trinitron (Other) White Point 5000 K (D50)/5500 K/6500 K (D65)/ 7500 K/9300 K Specifies the output color space of the job. Select CMYK, Standard Color, or Expert Color for a full-color document. Applies a GA-1120 color rendering dictionary (CRD) to RGB data (see page 1-5), or to any incoming data with a PostScript source color space definition, including CMYK. Performs a color adjustment on all color channels to make the printed output lighter or darker. Applies an RGB source space definition to RGB data (see page 1-7). If you choose the Other setting, you can specify particular settings for Gamma, Phosphors, and White Point. See the corresponding options in this table. This option, along with Gamma, Phosphors, and White Point, only affects DeviceRGB or calibrated RGB color spaces. Applies the specified gamma value to the RGB source space definition (see page 1-7). To use this print option, you must choose Other as the RGB Source setting. Applies the specified phosphor (monitor type) information to the RGB source space definition (see page 1-7). To use this print option, you must choose Other as the RGB Source setting. Applies the specified white point value to the RGB source color space definition (see page 1-7). To use this print option, you must choose Other as the RGB Source setting.
Page 1 and 2: TOSHIBA GA-1120 COLOR GUIDE
Page 3 and 4: Copyright © 2002 Electronics For I
Page 5: Proprietary Rights You acknowledge
Page 8 and 9: viii Contents Starting Calibrator 2
Page 11 and 12: Introduction xi About this manual T
Page 13: xiii Key features of ColorWise Colo
Page 18 and 19: RGB Separation Output/Simulation 1-
Page 20 and 21: 1-6 GA-1120 Color Management select
Page 22 and 23: 1-8 GA-1120 Color Management If you
Page 24 and 25: 1-10 GA-1120 Color Management The C
Page 26 and 27: 1-12 GA-1120 Color Management are p
Page 28 and 29: 1-14 GA-1120 Color Management • O
Page 30 and 31: Choose ColorWise 1-16 GA-1120 Color
Page 32 and 33: 1-18 GA-1120 Color Management Setti
Page 34 and 35: 1-20 GA-1120 Color Management 3. In
Page 36 and 37: 2-2 Color Calibration An overview o
Page 38 and 39: 2-4 Color Calibration Output profil
Page 40 and 41: 2-6 Color Calibration Starting Cali
Page 42 and 43: Calibration methods appear here 2-8
Page 44 and 45: 2-10 Color Calibration Restoring de
Page 46 and 47: 2-12 Color Calibration 8. Click Mea
Page 48 and 49: 2-14 Color Calibration Calibrating
Page 50 and 51: Indicator light Sample aperture (un
Page 52 and 53: 2-18 Color Calibration In the Paper
Page 54 and 55: 2-20 Color Calibration When the pat
Page 56 and 57: 2-22 Color Calibration 5. Choose th
Page 58 and 59: 2-24 Color Calibration Calibrating
Page 60 and 61: 2-26 Color Calibration TO REMOVE CA
Page 62 and 63: 3-2 ColorWise Pro Tools NOTE: If yo
Page 64 and 65: 3-4 ColorWise Pro Tools 4. Click OK
Page 66 and 67:
3-6 ColorWise Pro Tools TO BACK UP
Page 68 and 69:
3-8 ColorWise Pro Tools TO DEFINE A
Page 70 and 71:
3-10 ColorWise Pro Tools Simulation
Page 72 and 73:
3-12 ColorWise Pro Tools 4. For a s
Page 74 and 75:
A curve with this shape makes a col
Page 76 and 77:
3-16 ColorWise Pro Tools TO EDIT A
Page 78 and 79:
3-18 ColorWise Pro Tools TO CORRECT
Page 80 and 81:
3-20 ColorWise Pro Tools 8. In the
Page 82 and 83:
3-22 ColorWise Pro Tools Color Setu
Page 85 and 86:
Appendix A: Color Measurement Instr
Page 87 and 88:
Unused connector A-3 Color Measurem
Page 89 and 90:
A-5 Color Measurement Instruments 6
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A-7 Color Measurement Instruments 7
Page 93 and 94:
Unused connector Connect to compute
Page 95:
A-11 Color Measurement Instruments
Page 98 and 99:
B-2 Importing density measurements
Page 101 and 102:
Index A Absolute Colorimetric rende
Page 103 and 104:
I-3 Index calibration sets for 2-3,
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11-12 GA-1120 Color Management - Toshiba

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