Epson WorkForce 840 Quick Guide

Replacing Ink Cartridges

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Replacing Ink Cartridges
Use the following list when you order or purchase new ink cartridges:
Note:
We recommend that you use genuine Epson cartridges and do not refill them. The use 
of other products may affect your print quality and could result in product damage.
Yields vary considerably based on images printed, print settings, paper type, frequency 
of use, and temperature. For print quality, a small amount of ink remains in the cartridge 
after the “replace cartridge” indicator comes on. The product ships with full cartridges 
and part of the ink from the first cartridges is used for priming the product.
For best printing results, use up a cartridge within six months of opening the package 
and before the expiration date on the cartridge box.
Store ink cartridges in a cool, dark place. If cartridges have been exposed to cold 
temperatures, allow them to warm up to room temperature for at least 3 hours before 
using them.
Replacing Ink Cartridges
Make sure you have a new ink cartridge before you begin.
Caution:
Do not open ink cartridge packages until you are ready to install the ink. Cartridges are 
vacuum packed to maintain reliability.
Leave the expended cartridge installed until you have obtained a replacement, or the 
ink remaining in the print head nozzles may dry out.
1. Turn on the product.
2. If an ink cartridge is low or expended, you see a 
message on the LCD screen indicating which 
color to replace. Press 
OK
.
Ink color
High-capacity
Extra High-capacity
Black
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127
Cyan
126
127
Magenta
126
127
Yellow
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