Inkjet cartridge compatible with Epson T077320

This is a brand new cartridge that is compatible with Epson T077320. Meets or exceeds original Epson cartridge specifications with a 100% guarantee. Not made by Epson, this is a generic / compatible cartridge that replaces the original Epson T077320. Works in all Epson printers that use the Epson T077320 cartridge as long as the printer was manufactured before March 2007. Epson Stylus Photo R260/R380/RX580 Magenta High Capacity

NOTE: These compatible cartridges only work in Epson printers released before March 2007. After March 2007, Epson has updated drivers / firmware on their printers which cause the printers to not accept these cartridges. If your printer was manufactured before March 2007, but you downloaded new drivers from Epson after March 2007, these cartridges will not work. To determine if your printer was manufactured before March 2007, check the serial code number on 
your printer (reading from RIGHT to LEFT):

6th digit is for the MONTH of production (for months October, November, December use X, Y, Z respectively)

7th digit is for the YEAR of production

Here is an example:
Serial # C65301002W156Y16332
From right to left, the 7th position means the Year (example 6=2006, 7=2007) the 6th position means the month (example 1=January, 2=February etc. X=October, Y=November and Z=December) the 5th and 4th positions mean the day of production. The serial used as example above means that the printer was built on November 16, 2006.