Q: Okay, I did an ‘oops’ with my iPhone when I was trying to print a single page of a big PDF using AirPrint, and I ended up sending the whole stupid thing to the printer. It’s 385 pages in all, and now I can’t figure out how to make it stop. I’ve tried closing the app, even rebooting my iPhone, but when it comes back up, it starts printing out again. I’ve had to keep the printer turned off, since every time I turn…