These are possible causes and solutions. Try one or more of the following:
Check for and clear any paper jams. For more information, see Paper jams.
Verify that the specialty media is loaded correctly. For more information, see Loading various paper types.
Try loading one page, envelope, or sheet of specialty media at a time.
For Mac OS X version 10.4 or later:
From the Finder desktop, choose Applications
Utilities
From the Printer List dialog, select your printer.
Click the Make Default icon.
For Mac OS X version 10.3 or later:
From the Finder desktop, choose Applications
From the Printer List dialog, select your printer.
Click the Make Default icon.
For Mac OS X version 10.4 or later:
From the Finder desktop, choose Applications
From the list of printers, double-click the name of your printer.
From the printer pop-up menu, click Start Jobs if you want to resume all print jobs in the queue; if you want to resume a particular print job, select the document name, and then click Resume.
For Mac OS X version 10.3 or later:
From the Finder desktop, choose Applications
From the list of printers, double-click the name of your printer.
From the printer pop-up menu, click Start Jobs if you want to resume all print jobs in the queue; if you want to resume a particular print job, select the document name, and then click Resume.