Hp Laser 138fnw Printer install Toner Cartridge Error Solution | install Toner Cartridge Error Fix

HOW TO FIX 138 FNW printer INSTALL TONER CARTRIDGE issue .
HP Laser Jet MFP 138 FNW / 136a / 136w Printer Install Toner Cartridge problem solved. If the message " INSTALL TONER CARTRIDGE " is showing on the display even though the toner is installed in the printer so how do you solve this problem in that case. you are installing a new toner and still the printer is showing the message install toner cartridge in that case , a full video step by step is given on how to restore the printer to working condition .
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