WF-3520 Series Laser Toner Cartridges

WF-3520

Epson WorkForce WF-3520 printer

The WorkForce WF-3520 accepts 126 High Capacity and 127 Extra High Capacity ink. On this model's own Epson specification the 126 tier is rated at about 385 pages for black (T126120) and 470 pages per color, while the 127 tier reaches 945 pages black and 755 per color (ISO/IEC 24711) — DURABrite Ultra pigment throughout. Compatible cartridges in both tiers are below, chipped and covered by a lifetime warranty.

Cartridge	Type	Color	Approx. Yield
Epson T126120 (compatible)	High Capacity pigment ink cartridge	Black	385 pages
Epson T126220 (compatible)	High Capacity pigment ink cartridge	Cyan	470 pages
Epson T126320 (compatible)	High Capacity pigment ink cartridge	Magenta	470 pages
Epson T126420 (compatible)	High Capacity pigment ink cartridge	Yellow	470 pages
Epson 126 Set of 4 (compatible)	Full cartridge set	Black / Cyan / Magenta / Yellow	385 black, 470 per color
Epson 126 Set of 9 (compatible)	Bulk cartridge set (3 Black + 2 per color)	Black / Cyan / Magenta / Yellow	385 black, 470 per color
Epson T127120 (compatible)	Extra High Capacity pigment ink cartridge	Black	945 pages
Epson T127220 (compatible)	Extra High Capacity pigment ink cartridge	Cyan	755 pages
Epson T127320 (compatible)	Extra High Capacity pigment ink cartridge	Magenta	755 pages
Epson T127420 (compatible)	Extra High Capacity pigment ink cartridge	Yellow	755 pages
Epson 127 Set of 4 (compatible)	Full cartridge set	Black / Cyan / Magenta / Yellow	945 black, 755 per color
Epson 127 Set of 9 (compatible)	Bulk cartridge set (3 Black + 2 per color)	Black / Cyan / Magenta / Yellow	945 black, 755 per color

WorkForce WF-3520 Ink — The Specification That Anchors the 126 Ratings

For the WF-3520, Epson publishes the same two-tier ladder, and its own specification is the source quoted here. The 126 tier puts black T126120 at about 385 pages and cyan T126220, magenta T126320 and yellow T126420 at about 470 pages apiece. The 127 tier stretches black T127120 to up to 945 pages and cyan T127220, magenta T127320 and yellow T127420 to up to 755 pages apiece, with yields per ISO/IEC 24711. Where the family's cartridge pages show 415 black / 440 color for the 126, the difference is Epson rating the cartridge alone versus rating it in this machine — this page keeps the WF-3520 specification's own figures.

The WF-3520’s specification sheet (C11CC33201) is one of the two documents that anchor this platform’s published yields, which is why its own 126 figures lead this page. Its manual runs to hundreds of pages with the ink system documented throughout — among the heaviest documentation sets Epson published for an office inkjet, and the reason this model’s numbers can be quoted with unusual confidence.

Which 126/127 should you buy?

126 singles, one slot at a time: replace only the empty position — black, cyan, magenta and yellow singles are $8.99 each, for topping up the 126 tier one tank at a time.
126 full refresh: the Set of 4 ($29.94) covers all four 126 positions in a single box — handy when several tanks are low together.
126 stock for the shelf: the Set of 9 ($59.94) holds three blacks plus two of each color — backup kept ready for a WorkForce that prints every day.
127 singles, one slot at a time: replace only the empty position — black, cyan, magenta and yellow singles are $10.49 each, for stretching the longer 127 tier between full changes.
127 full refresh: the Set of 4 ($40.44) covers all four 127 positions in a single box — the longer-running refresh for heavier print weeks.
127 stock for the shelf: the Set of 9 ($74.93) holds three blacks plus two of each color — a deeper reserve for nonstop document work.

Chip, ink and everyday use

Every cartridge in both tiers carries a new compatible chip, so treat the contact gently: pick the tank up by its edges and keep fingers off the green chip contact. On yields, hold this tier to Epson's numbers only — inflated page claims circulate for these cartridges, but the ratings printed here are Epson's own under ISO/IEC 24711. The DURABrite Ultra pigment ink stays ready in a sealed spare; leave spares in their packaging until install day.