Specification :

PRO3800 Bulk Ink Delivery System, Pro 3800 Refillable Cartridges,
Pro3800 bulk ink system.

All 9 color chips reset in one time, including waste ink tank chip.

So no more any new maintenance cartridges needs. Waste ink keeps free always
Each color 150ml per Carts. You can print as much as you need.

K4 Ultra Chromo Pigment ink,

No vacuum ink
No meatiness problem
No technician need, just insert the cartridges and printing.

International Patent:

Patent No:
M254344, M323391,

Epson brand names and style and model number
are used for descriptive purposes only,
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of their respective owners.