l1800

Hello everyone, recently I bought a printer for my office and its an Epson L1800, and its been a hit a miss experience since it's my first larger format printer so far. What has me scratching my head is the resulting print quality, which always results in prints that come out "wet" and deform...

I'm thinking of buying a3 + printer, and I think it's thesame models, Epson 1500W and L1800. I want to use or try other types of ink. Printing BW is also a possibility. Can I select 1500W and use CISS system plus other inks (lower price) or Better buy the L1800 with the original CISS ? Any other...