well... after days of trying to fix my epson 3800, I think I fix the issues. Finally.
I used all the windex cleaning methods and more...
I think the main trick is...
Total control on the purge pad area under the nozzle. ( I used windex, alcohol, Q-tips, paper towels...)
Nozzle check auto.
Understanding that sometimes the printer misread the amount of ink left...
(and when cleaning the purge pad, use the paper towels(make similar shape with..) instead of the maintenance cartridge to save it.)
I cleaned the nozzles, purge pad, after fixing the nozzle issues, and there was one last problem, the purge pad doesn't drain the inks well.
I had to use the isopropyl alcohol after many failed cleaning with windex.
I think it worked even though the alcohol is a bit dangerous to some rubber materials... so, it's not easy to recommend...Use it with caution. I used windex immediately after using the alcohol to prevent long exposure to the alcohol...
( I used the alcohol with a kind of syringe. While using the syringe, I agitate the pad itself to dissolve any dried inks underneath... It's my guess though...)
I think the printer was carelessly left for months and the nozzle and purge pad area was very dried...
After spending many hours, ink( more than 200$), printing papers, paper towels, windex... I think still it's worthwhile. And a good lesson.
~a movie worthy trial, "saving my 3800"~
Thanks all.
PS_and it might be a good practice to set up and follow some protocols when using the printer and not using the printer for better printing condition such as moisture and dust and purge pad control....