Please ask the end user to do a test print to the newly installed printer.
TO PRINT MONOCHROME ON A COLOR PRINTER
Make a second instance of the same color printer, but choose the TOSHIBA MonoMFP driver instead. Name this instance as Monochrome or Black & White to distinguish it from the color driver instance of the same printer.
The PaperCut system charges all prints using the Macintosh TOSHIBA ColorMFP driver at the color cost rate - without regard to the actual content of the document being sent. This is a work-around for that issue.