It took Bayo Akinfenwa just 12 mins after returning from suspension to get back on the scoresheet. His shot after 12 mins was set up by new boy Prijovic. Cobblers doubled the lead in first half injury time with a goal from Abdul Osman.
The excellent Luke Gutteridge made it 3 - 0n the 72nd minute and the scoring was rounded off by new signing Scott Vernonin the 79th minute. He was on as a replacement for Akinfenwa.
The victory opens up a 2 point gap from the relegation places. The tema directly below Northampton, Swindon, visit Sixfields on Tuesday evening for a huge match between the two struggling sides.