Kyocera FS-C2626 color deviation

[ursus2]

Ok, I understand, multifunctional with problems, but chances are it can be solved. All three specialists who posted here (thanks to them) mentioned a special firmware. Where can I find it? My plan is to disassemble the printer, clean it thoroughly, then install a special firm, then calibrate, then check the results. If I notice improvements, then I replace the 4 MC-590 parts and reset the settings.
So where do I find special firmware? There is no driver for this printer on the Kyocera website either.

[ursus2]

I cleaned the whole printer, then went to the "color registration" menu and worked for two hours to align the lines. Now it works properly
Firmware for this printer, special or normal, only exists for you who sell it for $ 20. $ 20 is not the problem, I don't think it would have helped me anyway, but the fact that the forums are made for people to learn from other benevolent people who want to share their knowledge.