This registry entry does the same thing as the MaxPrintResolution except that MaxTextPrintResolution controls the dpi (dots per inch) for labels with a TextReportObject in your printed report, not CAD images.
This registry entry only functions when DoNotUseAmyuniRTF is set to 0. If it's a non-zero value, PC-DMIS does not attempt to regenerate the labels.
If the dpi is greater than 96 then any labels used, those labels are regenerated at the higher resolution. Regenerating labels causes them to be re-evaluated.
Entry Name: MaxTextPrintResolution
Entry Type: Whole number that specifies the print resolution. The default value is NONE (1000000), which effectively causes this value to be ignored.