I'm sorry to hear you're experiencing marks in your prints on Type 5 paper, and would appreciate if you could mail me a few samples to review to get a better understanding of what is happening, so I can resole this for you and report to the manufacturer if needed. All glossy paper surfaces are fragile, and marks on the paper can be noticeable after printing, so extra care should be taken when handling gloss media, and prints, as well as printer cleanliness. Having said this- I have made many incredible Piezography prints on 44" Type 5 paper, so it's certainly possible, and I'm here to help you experience the same results in your studio.
In our studio, I have raised the top metal cover of all our printers to prevent paper from scuffing this ridge before entering the printer, which I noticed can be an issue- especially when feeding a print to be GO coated. I have printed on and evaluated MANY papers from a range of popular manufacturers including Canson, Hahnemuhle, Epson, Innova, Inkpress, etc... and am happy to share my findings about the papers I have tested, and am always open to suggestions of papers to try/test that you may like or be interested in.
Please send a few samples to me at the address below, showing the issues you're experiencing so I can review them and have a clearer understanding of what you're experiencing, in order to move forward and help resolve this for you.
I will be awaiting your samples, and let you know as soon as I have received/reviewed them.
Best regards~ Dana
17 Powder Spring Rd
Topsham VT 05076