TNP 40/42 refill or reset

[mircea]

Hello
Hope you all doing good in this hard times and you all healthy and well.
I trying to find some info on bizhub 4020 cartridges refilling/resetting.
I've been searching for a good way to refill cartridges for Bizhub 4020 to try and lower cost/page since oem and even compatible cartridges prices are so high.
From my research there are also few chip resetters out there .
Anyone found a good refill toner and a way to reset chips?

thx a lot in advanced!

[pining]

Hy, i succeed to refill with toner from Lexmark but chip need to buy from Alibaba/aliexpress total amount still don`t now if it worth... i liked to re-soft the firmware and forget about chips but still not found something. I found some chip in Spain but to many condition like chip no need to be on "0" to be refilled with 20k counter, and again the cost for same is 8,5$; plus they work with big companies not with me like only 1printer, they told me from 3pc more is worth and margin are very less.
The best solution is to re soft and forget about chipsss, if some one cane help-me i will be great-full.