Printer For Hospital Wrist Band Printer Help... EMERGENCY?

Printer Help... EMERGENCY? - printer for hospital wrist band

I try to print something for someone in the hospital. I was told to go home and print only what the print is ready. But there is a printer error saying that the document is printed on the wrong printer. Is there any way I can know what he was asked to be printed, so I can set up and reprinted. Wrong printer is an Epson and Canon iP1800 is correct. Thanks in advance!