Where are you located ? If yours is Expression Photo HD XP-15000 Wide-format Printer Ink , then your problem is your using dye based inks looking at the specs i found here. You need pigment inks for transfers UNLESS you are using Sub based ink setup. Dye based bleeds always . link i found on printer specs https://epson.com/i/C11CG43201

 

That is the correct printer.

May I ask why it is only the black ink which is bleeding if they are all dye inks?
I have invested heavily in a printer and will struggle to sell it. Are you certain heat transfers cannot be used with dye ink from inkjet printers? I have read from several sources it is possible.

 

The only way to use dye inks is with a sublimation printer because it uses a special transfer that holds the ink for dye based of that type . I run my own vinyl group on facebook and know what im talking about when it comes to this and many other areas. I have a high recommendation from many people in it as well for my knowledge.



For my shirts i use all pigment inks and print on jpss clear and i have over 50 washes on my shirts as of today and they still look like the first day i printed on them, I can apply to 100% cotton,100% poly and blends, For dark shirts they sell a 3g jet opaque ., i buy my transfers from world-paper.




Dye inks are water based and one thing that cause bleeding is that your not pressing the shirt for about 3-4 secs to remove moisture out of the shirt before applying your design. I ahve never had bleeding issues on any shirt. It also can be the brand of transfer your using . If your using a clear transfer ,you want to leave a 1/8'' border around the image .. Feel free to pm me and we can connect up to help you better personally and if interested in getting in my group. You will be impressed on it im sure.

 

Pippin decals has said it all really, but I was just wondering which shirts you are applying the transfers to. Are they untreated as sometimes manufacturers treat the garments and this has undesirable effects when printing on them.