No! Laser printers have different printer engines. Each laser printer engine has different melting points and is
designed to use toner with the correct particle size and melting point for proper dispersion onto the paper.
So each of the Universal 7 black toner kits is designed to work with a specific set of laser printers that all have the same relative particle size and meting points for the toner powder. Check the link description to see if your printer is compatible.
Using the Universal black toner refill kits typically saves at least half the cost of a new laser cartridge and the first print out of the refilled cartridge is as good as the last print out of the original cartridge.
For models not covered by the Universal kits, we have cartridge specific kits.