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• What Ink Does the Epson WF-7840 Use?

  What Ink Does the Epson WF-7840 Use?

  September 23, 2026 — Quick answer: The Epson WorkForce Pro WF-7840 uses four individual Epson 812 DURABrite Ultra pigment cartridges: Black, Cyan, Magenta and Yellow. The high-capacity Epson 812XL cartridges fit the sa...