We've got a new product in whose sublimation size is literally 2-3mm over the size we can print A3 on our SG7100. Therefore we are getting a fine white line down the edges due to margins.

Am I right therefore in thinking that you can buy a special tray and use A3+ paper to enlarge print area?

OR

Is there a way to get more print area out of the existing A3 print if the printer can print larger area anyway?

Many thanks

Olly