Replaced the Yellow developer unit for E020-0191 errors and ran the install Iniset-Y and the stir all passed with ok after running them, but when looking at the Dens-Y percentage its only showing .10%. Doesn't seem right. Anyone know what the DENS percentages should be at. Just trying to make sure its actually adding toner to the new Y developer unit. Is there another way to confirm that it is, or does the stir-Y and iniset-Y confirm that by giving the ok signals after running them?