How to save Money with Brother Printer , My experience.
To all Brother printer owners (Model MFC-7860DW) or other owners of Brother models,
When the “Replace Drum” message appears and the printer is unable to function, you can easily determine the drum and toner status by performing a few simple actions. This avoids the need to purchase a new drum, thereby saving money.
This is my current status ( Almost went to buy NEW Drum and Toner )
So please reset Toner and Drum manually instead of buying New parts.
https://printsaverepeat.com/blogs/blog/brother-mfc7860-how-to-reset-drum-counter
iMac (M4)