Be careful about weights of paper you put through the printer.I have Expson DX5000 and the max. gsm i can use is 250.Some printers can take up to 300gsm okay.Regarding Joanna's gentle gloss that's a nice weight and you should have no problem with it.It prints out beautifully and the colours are nice. Remember to adjust the printing preference to photo when using the gentle gloss.Hope this helps. The hammer can sometimes be a heavier paper.My printer does like hammer card too.
Phlippa