Printer justification

Good afternoon sir I have faced situation like one day during the closing of the batch in c shift (10-09-2016) coating operator informed me that after 00:00 (12 in night) print out from the printer had shown directly 12-09-2016 he took the print at that time and pasted on the pastage sheet that was the post warm tablets print out auditor wanted that particular batch to investigate that time he observed the advance date in the print out and ordered for justification how can we justify this issue
Details of tje printer
Make: Sartorius
Range:420 gm weighing balance
Please try to give a suitable justification…