Calibrating the GA-1121 ensures consistent, reliable color output. This chapter explains how calibration works and provides instructions for all calibration procedures. You can calibrate the GA-1121 using ColorWise Pro Tools in combination with any of the following color measurement instruments:
•EFI Spectrometer ES-1000 hand-held spectrometer
•EFI Densitometer ED-100 hand-held densitometer
•X-Rite DTP41 automatic scanning spectrophotometer
•X-Rite DTP32 automatic scanning densitometer
By connecting one of these instruments to a serial or USB port on your computer, you can quickly measure calibration color patches and download measurements to the GA-1121.
NOTE: To use the ES-1000 or ED-100 with a Mac OS computer, you must connect the instrument to a USB port. You also need an adaptor to connect the ES-1000 or ED-100 to the Mac OS computer. For more information, contact your service technician/representative. For information on setting up and operating the DTP41 and DTP32, see Appendix A.
Another way to obtain measurements is by using the copier/printer’s built-in scanner as part of AutoCal™ or ColorCal™, which do not require the use of a measurement instrument and can be run from ColorWise Pro Tools or the GA-1121 Control Panel.
When choosing a calibration method, keep in mind that methods using a color measurement instrument such as the ES-1000, DTP41, or DTP32 are generally the best. We recommend using the ES-1000 because it captures measurements very accurately and quickly, can be used to calibrate and profile printers using pages with randomized patches, and can be used to measure and adjust individual spot colors.
For information on advanced calibration and simulation features available with ColorWise Pro Tools, such as editing profiles and creating custom profiles, see Chapter 3. A format for inputting color measurements from other densitometers is described in Appendix B.
