The comparable Epson printer to the HP B9180 is the 2400, not the R1800. The R1800 with the Epson ink set is vastly inferior to the HP B9180 for monochrome printing. You could set the R1800 up with Piezography inks if monochrome printing is what you want, but for printing both monochrome and color the HP B9180 has it all over the R1800.
Also, the HP ink cartridges contain 27ml of solution. Just curious if you know how much ink the Epson cartridges hold? I believe the HP inks may be more expensive than the Epson inks but not by as much as your figures suggest. And even if they are a lot more expensive they rate much higher that the Ultrachrome ink set for stability.
Sandy King
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