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Does the Epson 3800 use ink from all the cartridges when swapping between the two blacks?

April 26, 2017blacks cartridges Epson ink swapping

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Does the Epson 3800 use ink from all the cartridges when swapping between the two blacks?

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No. According to Epson, the 3800’s new ink valve design enables it to use only black ink during the ink change operation. I tested this claim by jotting down the ink levels (as reported by the 3800’s control panel) before and after the ink swap. There appears to be no change in ink levels for any of the other inks (i.e., only the PK or MK inks is affected). Assuming the printer’s ink level report is accurate, these results are consistent with Epson’s claim.