Which ink does the Brother MFC-J1170DW use?

The Brother MFC-J1170DW (inkjet, 2021) uses LC401BK, LC401C, LC401M, LC401Y.

Compatible cartridges

CartridgeColorYieldPagesOEM priceCost/page
LC401BK black standard200 $13.00 6.5¢ OEM · AmazonCompatible
LC401C cyan standard200 $11.00 5.5¢ OEM · AmazonCompatible
LC401M magenta standard200 $11.00 5.5¢ OEM · AmazonCompatible
LC401Y yellow standard200 $11.00 5.5¢ OEM · AmazonCompatible

XL/high-yield cartridges usually cost more upfront but lower the cost-per-page — better if you print often.