Toshiba GA-1121 User Manual

Calibrating the GA-1121 ensures consistent, reliable color output. This chapter 
explains how 

 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.

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 

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 

. A format for inputting color measurements from other 

 is 

described in