https://community.usa.canon.com/t5/Production-Printing/imagePROGRAF-TM-350-Ink-Differences/m-p/462609#M1392 <P>What is the difference between ipf 320M ink and ipf 321M ink? I have a Canon TM-350 printer. It takes 5 ink cartridges to print. 4 out of the 5 cartridges are ipf 320 (C,Y,B, MB). The fifth being Magenta requires 321M. Why? When the inks are sold in a set, they all came as ipf320 (C, Y, B, MB, and M) . What is the difference in 320m and 321m? Also, why would&nbsp; this printer not take 320M? Any advice or information would be greatly appreciated. Please and thank you.&nbsp;&nbsp;</P> Mon, 19 Feb 2024 14:38:53 GMT RMPL 2024-02-19T14:38:53Z https://community.usa.canon.com/t5/Production-Printing/imagePROGRAF-TM-350-Ink-Differences/m-p/462609#M1392 <P>What is the difference between ipf 320M ink and ipf 321M ink? I have a Canon TM-350 printer. It takes 5 ink cartridges to print. 4 out of the 5 cartridges are ipf 320 (C,Y,B, MB). The fifth being Magenta requires 321M. Why? When the inks are sold in a set, they all came as ipf320 (C, Y, B, MB, and M) . What is the difference in 320m and 321m? Also, why would&nbsp; this printer not take 320M? Any advice or information would be greatly appreciated. Please and thank you.&nbsp;&nbsp;</P> Mon, 19 Feb 2024 14:38:53 GMT https://community.usa.canon.com/t5/Production-Printing/imagePROGRAF-TM-350-Ink-Differences/m-p/462609#M1392 RMPL 2024-02-19T14:38:53Z