In order to reset the toner cartridge, you need to follow these steps:
First, make sure that the printer device is completely turned off and the front cover is open. You don't need to remove the toner cartridge during this step. Next, press and hold the start key on the printer with one hand and turn on the printer's power switch with the other. Please keep holding the start button until you see all the lights illuminate. This process may take some time, so please be patient. 
Once all the lights are on, you can safely remove the toner cartridge. Carefully remove the toner cartridge from the printer and make sure you don't damage any internal parts. Then, replace the new toner cartridge with the printer and make sure it is installed correctly. Finally, close the front cover and make sure it is securely held in place.
After completing the above steps, your printer should have finished resetting the toner cartridge. Note that when doing this, it is important to be cautious and follow the correct steps. Avoid any actions that may damage the internal parts of the printer. In addition, after the reset operation is completed, it is recommended that you perform a print test in time to ensure that the printing effect is normal. This helps ensure that your printer is working properly and gives you the best possible printing experience. 
Please note that different printer models may have different reset methods. Therefore, before proceeding with the reset, make sure to consult the user manual or official support page for your printer model for accurate reset guidance.