Replacement Toner Ink Inkjet Drum Cartridges and Refill Kits by TonerKits

Do-it-yourself Toner Cartridge Refill Kits
SCX-4521D1 SCX-4521D3

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  Refill Kits Pages   1PK 2PK     4PK    
High Yield Refill Kit w/Fuse for Samsung SCX-4521D3 SCX-4521D1 High Yield Refill Kit w/Fuse
Refills Samsung#:
3000 $19.99 $35.99 $63.99
Refill Kit Includes: toner w/pouring spout, instructions (view/download)                        

  Accessories Pages   1PK 2PK     4PK    
Reset Fuse for Samsung SCX-4521D3 SCX-4521D1 Reset Fuse
Resets Samsung#:
3000 $8.99 $16.99 $28.99
Pouring Spout (5pk) Pouring Spout (5pk) n/a $8.99 $16.99 $28.99


Premium professional grade toner refill. This toner produces high quality text and graphics on plain paper. Each factory sealed bottle contains one pre-measured refill specifically formulated for use in the cartridges and printer models shown below. Our refill kits and accessories are intended to be used with original OEM cartridges only.

Refill Method Overview:
Simple instructions show where the existing factory fill hole is located. This hole can be used to refill the cartridge easily. Only a screwdriver and pliers are needed. Refilling time is approximately 10 minutes.

Compatible with the following cartridges/printers:
SCX-4521D1 SCX-4521D3, SCX-4521 SCX-4521f SCX-4521fg

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