Epson Stylus Pro 11880 has 2 Consistently Clogged Nozzles

[typicaltechguy]

I have an Epson Stylus Pro 11880 that has its LK and LLK nozzles consistently clogged. All the other nozzles for the other inks are clean as a whistle from the nozzle check printout, but I have persistent issues with the LK and LLK nozzles.

The printer is used about 3-4 times a week, and nozzle checks are done at the beginning of each day. Attached are two images of the nozzle check results. The first is from a nozzle check before any sort of cleaning, after the printer was sitting unused for about 3 days. The second picture of of a nozzle check following a standard cleaning cycle and a few LK/LLK specific cleanings.

I’m wondering what could be the issue with the LK and LLK inks acting up. Any help would be very much appreciated! Thank you!