I used this toner to replace a cartridge in one of my HP m15a laser printers. It installed as expected and fits perfectly. It was recognized by the printer and my computer with no problems. I shook it vigorously to solidify the toner. It printed the same as the old HP branded cartridge and was readable in Eco mode. I also checked the toner level after installation and it didn't register as full (around 95%). This may be a software bug or the cartridge may not be full. As an inexpensive replacement, I've found this satisfactory.