6 Things to Know About the EcoTank ET-5850 Ink Bottles

One set of included ink bottles prints 7,500 black pages and 6,000 color pages based on the ISO/IEC 24712 standard.

For a small office printing a mix of documents, that supply lasts roughly a year of moderate use before any bottle needs refilling.

The printer ships with 502-series bottles, so you don’t need to buy ink separately to get started.

Black page yield is higher than color, which is typical for office printers that mostly print text documents.

The ISO/IEC 24712 standard ensures the yield numbers are comparable across different printer models.

You should expect lower real-world page counts if you print mostly photos or heavy graphics instead of standard documents.