***You can NOT successfully refill the #23 OR #24 cartrdiges UNLESS you have an "A" after the cartridge number***
This inkjet refill kit is compatible with the following Lexmark inkjet printers:
Lexmark: X3530 / X3550 / X4530 / X4550 / Z1400 / Z1410 / Z1420
Note: Lexmark offers for sale two different versions of the same cartridge: The regular version (23 / 24) is NOT refillable. It is the "Return" or "Rebate" cartridge you agree to return the empty cartridge to Lexmark. In return, Lexmark gives you a $5.00 discount off the cartridge. The "A" version (23A / 24A) can easily be refilled. However, the price of the cartridge is roughly $5.00 higher than the regular version, so most people unknowingly buy the regular version.
• 1 oz black, cyan, magenta & yellow inks
• 4 syringes & 4 needles
• Provides approx. 3 refills per color, 2 black refills