At Smart Ink, we strictly control the printer's firmware updates to provide you the most up-to-date version of the chip. That's why your printer will always work with our cartridges, no matter what firmware version you have.
1 x Black XL
1 x Cyan XL
1 x Magenta XL
1 x Yellow XL
1 x Easy-to-understand instruction
2 x Gloves
Black: up to 1100* pages
C/M/Y: up to 1100* pages per each color cartridge
Type of ink: Pigment for black, Dye for color
* at 5% coverage
Epson WorkForce Pro WF-3820, WF-4820, WF-4830, WF-4834
Gently shake the new ink cartridge 4-5 times before opening
Remove the yellow tape
Install the cartridge into the corresponding slot
Do not touch the chip or the ink port
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