I've had a google and can't find the gsm limit of your printer. I have found a list of paper that it execpts;
Plain Paper, Envelopes, Photo Paper Pro (PR-101), Photo Paper Plus Glossy (PP-101), Photo Paper Plus Double Sided (PP-101D), Photo Paper Plus Semi-gloss (SG-101), Glossy Photo Paper (GP-401), Glossy Photo Paper Everyday Use (GP-501), Matte Photo Paper (MP-101), High Resolution Paper (HR-101N), Transparency (CF-102), T-shirt Transfer (TR-301), Photo Stickers (PS-101), Super White Paper (SW-201)
Tbh, I'd just go and buy a few sheet of card from the post office or something and give it a bash.
Sorry i couldn't help more