Toshiba T-4520 / T-3520 Black Toner Cartridge for e-STUDIO 350–453 – Compatible

Toshiba T-4520 Black at a glance: a black toner cartridge rated at about 21,000 pages. Compatible: newly manufactured to Toshiba's specifications. Fits the Toshiba e-STUDIO 350–453. The drum is a separate service part. Backed by a 1-year 100% satisfaction guarantee; orders by 4 PM ET (Mon–Fri) ship the same day from Georgia.

Key Facts

What's in the Box

• 1 × Toshiba T-4520 Black compatible toner cartridge — about 21,000 pages

Page yields are the manufacturer's rating for the matching original cartridge, measured at roughly 5% page coverage under ISO/IEC 19752 or 19798 testing. Your results will vary with what you print.

Compatible Printers (6 models)

• Toshiba e-STUDIO 350 / 352 / 353
• Toshiba e-STUDIO 450 / 452 / 453

Don't mix these up: Toshiba lists T-4520 for the e-STUDIO 353/453 and T-3520 for the 350/352/450/452; this compatible cartridge fits all six.

Not sure? Look up your exact model on our Find Ink by Printer page, or contact us and we'll confirm the right toner for you.

Part Numbers & Also Known As

This toner cartridge replaces or is also searched for as: T-4520, Toshiba T-4520, Toshiba T-4520 black, ToshibaT-4520 black, T-4520 black toner, T4520, T-3520, T3520, Toshiba e-STUDIO 350 toner

Chips, Printer Messages & Installation

Installing: open the copier's front cover, turn or release the toner cartridge lock, then pull the empty cartridge out. Shake the new cartridge well, slide it in until it locks and close the cover.

Supply messages: if the copier still shows "Add toner", close the cover firmly and wait a minute while it refills the developer.

Streaks or light copies: make a few copies to let new toner reach the developer. Drum and developer are separate service parts on these copiers.

Still stuck? See our guide to fixing a cartridge that isn't recognized or contact us and we'll make it right.

Compatible vs. Remanufactured vs. Original

Original (OEM) toner is new from the printer brand and costs the most. Compatible toner, like this cartridge, is newly manufactured by a third party to the original's size and page-yield specifications, so it drops into the same slot at a much lower price. Remanufactured toner is an emptied original cartridge that has been rebuilt and refilled. Castle Ink sells compatible (newly manufactured) toner and remanufactured inkjet cartridges.

Other Options for the Same Printers

• Toshiba T-2500 Black Toner Cartridge for e-STUDIO 20–250
• Toshiba T-3500 Black Toner Cartridge for e-STUDIO 28, 35 and 45

Frequently Asked Questions

How many pages does the Toshiba T-4520 black print?

About 21,000 pages, based on Toshiba's rating for the original T-4520 at roughly 5% coverage.

Will this void my printer warranty?

No. Under the U.S. Magnuson-Moss Warranty Act, a manufacturer can't void your printer warranty just because you used a third-party or remanufactured supply. If a non-original supply directly caused damage, that specific repair might not be covered.

How long can I store it?

Sealed toner keeps for about two years at room temperature. Keep it in its bag, away from heat and direct sunlight, and store it flat.

When will my order ship?

Orders placed by 4 PM ET, Monday through Friday, ship the same business day from Georgia, by USPS (2–5 business days). Expedited 1–2 day delivery is available at checkout, and shipping is free on orders over $50.