Epson WorkForce Pro WF-7820 All-in-One Inkjet Printer - Manual (Page 275)

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Maintenance box part number: C12C934591
Note: For best printing results, use up a cartridge within 6 months of opening the package.
Ink color Part number
Standard-capacity High-capacity Extra high-capacity
Black 812 812XL 812XXL
Cyan 812 812XL —
Magenta 812 812XL —
Yellow 812 812XL —
Parent topic: Purchase Epson Ink Cartridges and Maintenance Box
Removing and Installing Ink Cartridges
Make sure you have your replacement cartridges handy before you begin. You must install new
cartridges immediately after removing the old ones.
Caution: Leave your old cartridges in the printer until you are ready to replace them to prevent the print
head nozzles from drying out. Do not open ink cartridge packages until you are ready to install the ink.
Cartridges are vacuum packed to maintain reliability.
1. Turn on your product.
• If an ink cartridge is expended, you see a message on the LCD screen. Note which cartridges
need to be replaced and select How to .
• If you are replacing a cartridge before you see a message on the LCD screen, press the home
button if necessary, and select Settings > Maintenance > Ink Cartridge(s) Replacement >
Start .