HOW TO REFIL HP NEVERSTOP LASER MFP 1200W PRINTER |TONER KIT CATRIDGE

#TheEasetech Steps 1: buy new cartridge and open it. steps 2: open printer cartridge cover. steps 3: check 3 golden pin. steps 4: match 3 pin printer and toner injection. steps 5: toner injection round 180 degree and press upper side to down side. steps 6: Pinter detect and check refill indication LED light. steps 7: done.