How to detect the toner amount of HP Laserjet Printer.

bluenite38

Honorable
Jan 11, 2013
16
0
10,510
Inkjet printers have indicators, laser printers not.
Simply course it goes so that in case of a small amount of toner the printed page is stained.
Is there a better way, more accurate? Or a pc utility?
thx for some advice
Peter