West Bromwich Albion 4 Bradford City 1
Nathan Ellington paid back the first slice of his £3 million transfer fee as his two-goal blast helped West Brom comfortably dispose of their League One opponents in a Carling Cup clash at The Hawthorns.
Ellington, signed from newly promoted Wigan last month, opened the scoring and then scored the decisive third after Bradford had briefly threatened a revival.
The only disappointment for Bryan Robson's side was the late red card handed out to defender Martin Albrechtsen but by then Albion had clinched their spot in the next round.
Ellington and Robert Earnshaw posed a constant threat up front, Kanu tormented the Bradford defence when he came off the bench while Darren Carter impressed in the centre of the park.
Robson made seven changes from the side which had drawn 1-1 at Sunderland on Saturday although two of them were enforced with keeper Chris Kirkland (back) and Zoltan Gera (hand) sidelined through injury.
Carter had the first attempt on goal but his low left-footed free-kick was comfortably collected by Bradford keeper Russell Hawarth.
Bantams defender Mark Bower became the first player to be yellow-carded after seven minutes for holding back Carter in full flight.
Bradford left-winger Bobby Petta was impressive in the early stages and he was only just too high with a 20-yard strike after the Baggies defence had backed off.
But after 23 minutes a barely half-full Hawthorns came to life as Ellington slotted home his first goal since his move from Wigan,
Carter's first-time pass wrong-footed the Bradford defence and Ellington raced clear before calmly slipping the ball wide of Hawarth and into the net.
Ellington had another effort blocked after Jonathan Greening had turned a deep cross from Robert Earnshaw back across goal into his path while Hawarth parried a fierce long-range attempt from Diomansy Kamara.
But Kamara was not to be denied his first goal for the club in the 32nd minute although the Bradford marking was non-existent when he rose on the six-yard line to head in Carter's inswinging free-kick.
Albion were in total command and it needed a sliding tackle to deny Earnshaw a third goal after Hawarth had turned away the initial drive from Carter.
Earnshaw was also only inches too high with a stinging shot from the edge of the box before Kamara was forced to limp out of the action with an ankle injury, replaced by Riccardo Scimeca.
But Bradford gave themselves an injury-time life-line when Steven Schumacher out-jumped Steve Watson to head home a right-wing centre from Darren Holloway.
Earnshaw was the biggest threat after the break and he could have had a hat-trick in a five-minute spell.
The Wales international shot wide when well-placed, just failed to connect at full stretch with a cross from Carter and then had a powerful effort turned over by Hawarth.
Richard Chaplow and Carter were booked in quick succession by referee Iain Williamson before Albion finally made sure of victory in the 72nd minute with Ellington's second goal.
Kanu was the provider with a reverse pass and Ellington timed his run perfectly to stay on-side before coolly chipping the ball over the advancing Hawarth.
Earnshaw was the next player to benefit from Kanu's awareness as he accepted a pass from the former Arsenal player before slipping the ball wide of the exposed Hawarth for Albion's fourth.
After Albrechtsen's dismissal, Kanu had a goal disallowed when he rose at the far post to thump home a header from Neil Clement's hanging cross.