Toner Cartridges, Maintenance Kits and Parts

One Item
Black Genuine Toner Cartridge Standard Yield, 2 x 3,100
The LaserJet Pro M402dne uses HP CF226AD (HP 26A) toner cartridge.
When the LaserJet Pro M402dne reports "Supply Problem", it usually just can't communicate with one cartridge's chip. Give the printer a full power-cycle, take out and firmly reinsert the flagged cartridge, and lightly buff its metal contacts with a dry, lint-free cloth. If the message stays, install a new cartridge in the reported colour.