Instructions for performing the green tile check using EasyMatch QC can be found here.
If the values are still out of tolerance after following these instructions, open the transmission compartment door and confirm that the specular exclusion port door is completely closed. If it is not, exit the green tile check, standardize in an RSEX mode, then standardize in an RSIN mode. Try the green tile check again. If the values are still out of tolerance, instrument repair may be required.
If additional assistance is required, you may contact HunterLab.