This is a complete mystery to me.
I'm on an iMac running Yosemite. Normally I print on a network printer (Minolta C430). Yesterday I tried to print a small document from Pages. Everything looked normal on the screen, but the printer gave no output because it had a maintenance problem. So I connected my old HP LaserJet 1010 (via USB) and tried to print on that instead. As soon as I pressed Cmd-P, Pages quit. No dialog box, it just died. There was an error message saying a report would be sent to Apple.
Next thing, the Minolta's maintenance problem had been fixed, other people were using it so I switched back (in system settings) and tried using it. Pages quit again. I thought there must be something wrong with Pages so I exported the document to pdf and tried to print it from Acrobat. Acrobat quit. No dialog box, just died. Seems that attempting to print will close any app.
Another thing is that if I reopen the app after this happens, it automatically opens the document, too.
Has this happened to anyone else? I'm bewildered.
Åke