Jim Goodwin and Andy Crosby scored two quickfire goals early in the second-half, with on-loan striker Jermaine Beckford sealing the win with his first goal for the club.
As Nottingham Forest and Bristol City are both involved in the FA Cup fourth round neither play their scheduled League games this weekend.
Yeovil increased the pressure on the pair with their 2-0 win at Bradford moving them upto fourth in the table.
Arron Davies scored both goals in the success at Valley Parade.
Doncaster boosted their promotion hopes with a 3-2 success over relegation-threatened Rotherham.
The Millers took the lead through Richie Partridge, but goals from Paul Heffernan and Graeme Lee turned the match around.
Heffernan extended their lead, meaning Martin Woods' strike 20 minutes from time was irrelevant.
Former Iron Wayne Corden was on the scoresheet as Leyton Orient climbed out of the relegation zone with a stunning 4-0 thrashing of Crewe Alexandra at Gresty Road.
Adam Chambers, Jabo Ibehre and Shane Tudor also scored as the London side moved above Bournemouth - who were not in action.
Brentford remain rooted to the foot of the table after a goalless draw with Carlisle United at Griffin Park.
Huddersfield and Chesterfield drew 1-1 at the Galpharm Stadium, while Brighton and Port Vale played out a goalless stalemate.
League One side Bristol City grabbed the headlines in The FA Cup after an impressive fightback against Premiership side Middlesbrough.
Aiyegbeni Yakubu fired Boro ahead just four minutes into the fourth round tie at Ashton Gate, and it looked bleak for the Robins when Malcolm Christie made it two after 23 minutes.
But Richard Keogh flicked in a header after 53 minutes to give hope to the West Country side, and Scott Murray secured a replay after a stunning strike from 30 yards.
Iron pull clear at top
Blackpool came from a goal down to book their place in the fifth round draw for the first time in 17 years after a 1-1 draw with Norwich City at Bloomfield Road.
The Seasiders dominated play for large periods, and the Canaries had on-loan goalkeeper David Marshall to thank for keeping them in the competition.
Darren Huckerby put the Championship visitors ahead, with Ian Evatt levelling for Blackpool.
Swansea City exited the Cup after a 1-0 loss at Ipswich Town, with Alan Lee converting a second-half penalty for the Tractor Boys.