Epson Enhanced Matte Posterboard (24 x 30", 10 Sheets)

Yes, you can use this Epson Enhanced Matte Posterboard with your Epson 7890 printer.

Although it has an alpha cellulose substrate, it is not speced as archival quality paper.

In follow up to B&H's answer, here is some additional information. 1. Of course you need to cut the paper to size to fit the printer. Please remember that although the max size for the 3880 is 17x22, the widest paper that the front loader can handle is 16"". 2. You need to use the manual front loader, and increase the platen width. I used the "wider" setting, which worked fine. Remember to reset the platen width when you are done. 3. The manual front load is fairly temperamental. Be sure to line up the right side of the paper with the right side of the printer, and the back of the paper, once pushed into the printer, should be on the white line. 4. I used the enhanced matte paper profile on the PS printer page, and ultra premium presentation paper matte on the PS printer set up page. 5. Please remember to print on the "less glossy" side of the paper. I did all of this and got fabulous results. Good luck.

This board is designed to run through the Epson machines smoothly and without incident.

yes, you can write on this with any writing instrument

I have used this paper using the POP board setting on my Canon IPF 6300. It should work for your machine. Follow Jim's instructions for loading. The machine prints on the top of the loaded sheet.