Mac OS X 10.6: If you can’t print
If you print a document but the document doesn’t appear at the printer, the suggestions below might help. You can look for more suggestions in the manual that came with your printer or at the printer manufacturer’s website.
Check the printer’s queue window.
Click the printer’s icon in the Dock to see the printer’s status.
If you see “Printer Paused,” click Resume Printer.
If another job is holding up the queue because of an error, select that job and click Delete.
If the job is paused, select it and click Resume.
Check which printer you used.
You may have chosen a printer different from the one you think you did in the Print dialog. Check which printer you actually used.
Print from another application.
Try printing from another application, such as TextEdit. If the problem occurs only in one application, review that application's documentation for further troubleshooting steps.
Make sure the printer is operating properly.
Go to the printer and check the following:
It’s turned on and is displaying normal status lights.
It has paper, and the paper isn’t jammed.
It has enough ink or toner.
Its cables are properly connected.
If you still can’t print
If you try all the suggestions above, and you still can’t print, see the topics below for more information about your type of printer.