I think it's easy to find HOWTOs in the Google age. The question is whether it works, or has Epson made changes to block downgrades. Waiting to hear from OP.
Everything I've read about that series suggests it can't be downloaded. Well, you know, maybe by desoldering and replacing the ROM or something like that.
Wow, thanks for that. I assume you'd tried all the normal methods before resorting to this? This is what I see in the service manual for the Pixma MG2100 MF3100 MG4100 MG2200 MG3200 MG4200:
11 Clear Ink Counter Ink absorber counter resetting
Set a sheet of A4 or Letter sized paper in the...
Or you could post them here and we could look at them. IIRC, there's no harm in installing a print driver for a printer you don't have. I'm not sure if it will confuse Windows or not, but I don't believe so.
Google is your friend here.
7-Zip, WinZip, and other programs will open a Windows cabinet file. As for what features you'll get in the driver, there's no way to know other than trying.
I'm not sure what is your experience level with repairing printers, but you never force a printhead along the carriage. There will be a combination of button presses/touchscreen menu items on any given printer to move it out of the way, usually to the middle of the carriage.
I'm not clear what you mean by "replaced the register". I'm no expert for sure, but I've never heard of any part called the register. Do you mean you replaced the registration sensor? In the ADF?
Have you tried the Windows Windows 10 driver for it from the MS Update Catalog? The driver model hasn't really changed between 10 and 11, so what have you got to lose?
https://catalog.update.microsoft.com/Search.aspx?q=k8600