These are chat archives for PaperCutSoftware/PaperCutExamples
I'm guessing that they created all those aliases because of the report writer they used. You can ignore them.
I'm afraid PaperCut can't offer any help for PowerBI, creting widegets, etc That is your tool.
Count(printerusa0_.printer_usage_log_id)is counting the number of rows in the
The Busiest Printer report uses the PrintSummary By Printer Report for it's underying data so you have the correct query