Print Centre is a utility on your iPad or iPhone enables you to manage your printing requests. Print Centre only appears when you’re printing so its not an app that you can otherwise find or open.
So, when you send a print job to your printer, you can cancel the job from directly your device… if you’re quick!
Simply double tap on the Home button, and swipe to the right to navigate to the first screen of apps that are currently open. There you will find the Print Centre (Figure 1).
Tap on the Print Centre screen and then Cancel Printing as shown in Figure 2.
You’ll have to be quick though because the Print Centre disappears once the print job has been sent to the printer.