Lexmark Laser Printers not working with Big Sur OSX 11

Mac OS X: About the Reset Printing System feature ...

http://support.apple.com/kb/HT1341?viewlocale=en_US

In System Preferences>Fax & Print, Right click or Control+click on the Printers list Sidebar, choose Reset Printing System.

if you hold option and click the "-" tab it resets the printing system.

http://www.macosxhints.com/article.php?story=20031215144430486

Safe Boot from the HD, (holding Shift key down at bootup).

Any devices that previously appeared in your Printer List and Fax List will need to be added again after resetting the printing system.

Resetting the printing system in Mac OS X

1. To use the Reset Printing System feature in Mac OS X, follow these steps:
2. Choose System Preferences from the Apple menu.
3. Choose Print & Fax from the View menu.
4. Control-click on list of printers on the left side of the window, then choose "Reset printing system" from the contextual menu. If you don't see a list of printers, Control-click on the text "Click + to add a printer or fax" and select "Reset printing system..."   
5. As an alternative, if you currently have one or more printers listed, you can Option-click the "-" (Remove printer) button.

http://support.apple.com/kb/ht1341

Reboot.

I found this link 8284346 and tried with Lexmark instead of Epson and it worked. Hope it works for you.

If you still have a problem persists try the following:

1. Power off your product.
2. Open System Preferences and select Print & Fax.
3. Highlight the Epson printer and click on the "-" sign to delete the printer.
4. Click Delete Printer to confirm and close Print & Fax.
5. On your hard drive, select Library > Printers. Delete the EPSON folder.
6. On your hard drive, select Library > Printers> PPD > Contents > Resources. Delete Epson Printer Name.gz
7. On your hard drive, select Library > Cache and delete the Epson folder.
8. Close the hard drive.
9. Restart your computer and power on the printer.
10. Go to https://www.lexmark.com/en_us/support/download-search.html
11. Search for your product or select it from the list.
12. Select Downloads.
13. Choose the printer or scanner driver for your system and click Download Now.
14. Once the download has completed, click on the file from your desktop to launch the installer.
15. Follow the directions to complete the installation.
16. Try Printing again. A

Hmmm, looks like maybe you're out of luck for awhile anyway?

http://support.lexmark.com/index?id=HO3732&page=content&locale=en&userlocale=EN_US

I am having the same issue. Just updated on Friday and am no longer able to print to my Lexmark CS820. I tried finding drivers on the Lexmark site but they dont have any for 11.0.1. I think 10.6 or 10.7 was all that was available. I have an email out to Lexmark but so far have no solution.

Do you have a Time Machine backup to Restore to/from?

https://support.apple.com/guide/mac-help/revert-to-a-previous-macos-version-mh15216/mac

I tried this thing with my M1140+ and it did not work. I got the answer from installation that it could not finish and the same anwer from printing „filter not found“.