EPSON T664 INK Series

The Epson T664 Ink Series is a popular set of dye-based ink refill bottles designed for earlier generations of high-capacity Epson EcoTank (Continuous Ink Supply System) printers.

1. Available Colors & Capacity

• T6641 (Black): 70 ml bottle

• T6642 (Cyan): 70 ml bottle

• T6643 (Magenta): 70 ml bottle

• T6644 (Yellow): 70 ml bottle

  (Note: Unlike newer EcoTank series that use pigment black, all four T664 bottles utilize dye-based ink.)

2. Page Yields

• Black: Approximately 4,000 to 4,500 pages (at standard 5% coverage).

• Color Set (Cyan, Magenta, Yellow combined): Approximately 6,500 to 7,500 pages.

3. Compatible Printer Models

The T664 series is widely used across many popular legacy EcoTank models, including:

• Epson EcoTank L-Series: L110, L120, L130, L210, L220, L300, L310, L355, L365, L382, L386, L455, L486, L550, L565, L1300

• Epson Expression ET-Series: ET-2500, ET-2550, ET-2600, ET-2650, ET-3600, ET-4500, ET-4550, ET-16500