Pantum P3500DN - Cartridge Issues; How Do I Replace or Insert a Cartridge; How Do I Check the Amount of Toner Left in My Cartridge

Cartridge Issues:
4. How do I replace or insert a cartridge?
Pull out the seal on the new toner cartridge firstly, and then insert the toner cartridge in
the printer until hearing a “click” sound.
5. How do I check the amount of toner left in my cartridge?
Step1： Please click ‘Prt Info Rept’ in the menu setting.
Step2：Please chose NO.2 ‘Info Page’ by page down.