Sorry... I didn't know there was an 00048 error message. I have to look that one up. The print head carriage is really just a plastic holder to align the print head. Anything to do with the sensor strip, is just to position the print head on the rails and over the bed. Neither one of those is going to stop the nozzles from firing ink.
Oh, I have to ask, "were did the print head for the NeoTex come from?" The main board, thats nothing. But please tell me it didn't come from the NeoSol. I have a funny story about textile ink and solvent ink, and it all started with the LCD window on my printer going out.
One idea I had was check the 7,8,54 (not 9) flat ribbon cables connected to the main board. Those 3 cables send the info to fire the ink. I remember the 54 cable on "my board" did a short reroute to another sub-board on the main board and then on to the 9 cable then out to the 0,00,000 cables. I can only say if I had followed the nice pictures in the Epson manual, I would have done it wrong.
Last thing, there is no reason this can't be a software issue. It can't hurt to reistall the printer & NeoRip Pro. My God! I can't even think what's left that you can replace. At the very least up date the firmware and NVRAM.