WF-3640

Ink for the WorkForce WF-3640 is the Epson 252 family in four individual pigment cartridges. Below are Clever Supplies compatible 252XL cartridges — black (T252XL120) and each color up to 1,100 pages (ISO/IEC 24711) — chipped, and backed by a lifetime warranty.

Cartridge	Type	Color	Approx. Yield
Epson T252XL120 (compatible)	High-capacity ink cartridge	Black	1,100 pages
Epson T252XL220 (compatible)	High-capacity ink cartridge	Cyan	1,100 pages
Epson T252XL320 (compatible)	High-capacity ink cartridge	Magenta	1,100 pages
Epson T252XL420 (compatible)	High-capacity ink cartridge	Yellow	1,100 pages
Epson 252XL Set of 4 (compatible)	Full cartridge set, all XL	Black / Cyan / Magenta / Yellow	1,100 black, 1,100 per color
Epson 252XL Set of 9 (compatible)	Bulk set: 3 black + 2 of each color, all XL	Black / Cyan / Magenta / Yellow	1,100 per black, 1,100 per color

WF-3640 Ink Cartridges — 252XL, All Four Colors

The WF-3640's Start Here guide, a cartridge table it shares with the WF-3620 — two tiers, no more: standard 252 (black up to 350 pages, colors up to 300 each) and high-capacity 252XL — T252XL120 / T252XL220 / T252XL320 / T252XL420 — at up to 1,100 pages per cartridge, DURABrite Ultra pigment ink, rated on the ISO/IEC 24711 pattern. Our shelf carries the XL tier in singles, a Set of 4 and a black-heavy Set of 9, because the compatible ladder for this family is built on XL.

Like its sibling the WF-3620, the WF-3640 is not a 254XL printer: Epson's official list for this model names no 254XL, so that cartridge is not offered here and a 252XL is never presented as its equal. Two machines, one cartridge table — an office running both stocks a single shelf of spares.

Which 252XL should you buy?

One color ran out: replace just that color — black ($13.49), cyan, magenta and yellow ($11.99 each), every cartridge rated up to 1,100 pages.
Full refresh: the Set of 4 ($44.94) replaces all four positions in one box.
Print every week: the Set of 9 ($80.87) stocks three blacks and two of each color — the pattern office printing actually consumes.

Chip, ink and everyday use

Every cartridge carries a new compatible chip, so the WF-3640 reads its ink levels normally; a one-time on-screen confirmation is the printer checking a non-Epson cartridge, not an error. The ink is DURABrite Ultra pigment: prints come out dry to the touch and resist water and highlighter smudging — the right behavior for office documents. If a firmware update ever precedes a recognition warning, reseat the cartridge and restart before judging it. Keep spares sealed until install day; the lifetime warranty stands behind every cartridge, with free returns for the first year.