Xerox 7830 without drum and toner chip

[Hassann]

Hello everyone
Can anyone tell me how is that possible ( xerox 7830 working without chip and can remove color drum and toner cartridge ) like this YouTube video

https://youtu.be/VTQSl5q033Y?si=LHTAX87dvnz7OOYx

[xcopytech]

Re: Xerox 7830 without drum and toner chip

Disable toner and drum in dc131 nvm read write

[Hassann]

Re: Xerox 7830 without drum and toner chip

Disable toner and drum in dc131 nvm read write

How is that ?
And what is chain link pls