Printing my mount boards

When it came to printing out my mount boards I went to a lot of effort to purchase enough printing credit so that I could print 10 sheets of a3 to make up my 5 A2 mount boards and enough cartridge stock so that my sheets would be much more appealing than standard plain white paper. Due to a fault in the printing room I know have 12 prints with marks and ink spills on them so unfortunately My mount boards don't look as good As I'd intended. (why couldn't life be easier and we could print them a3?)