Pantum M6700 - Cartridge Issues; How to replace or insert a cartridge

② Cartridge Issues:
12. How do I replace or insert a cartridge?
Firstly, Pull out the seal on the new toner cartridge, then insert the toner cartridge into the drum unit.
Last, install the assembly into the printer until hearing a “click” sound.
Step7: it will be done after several minutes.