I think you may be looking at Print Count in the Discover - Device Inventory grid. This column only reflects data collected by the Device Scout from network print devices. To see local printer volume collected by the Print Scout, please use the Explorer under the Print tab. So, if you click the Print tab, then click the Local Device Ratio widget, you will be brought into the Print Analytics explorer under the context of local devices. From there you can navigate around to see the different volumes of local print by user, device, location, etc.