Light Source Measure Tool is a useful program you can use with Canon imagePROGRAF Series printers. A means of measuring ambient light using the Eye-One series from X-Rite as a sensor.
Please note that the advice from the manufacturer is to take measurements of ambient light in an environment where actual printed materials are to be displayed.

Requirements:
* Compatible sensor

The license of this software is Freeware, you can free download and free use this printer software.