Epson Stylus Photo 1200 User Manual page 67

You can also turn
background printing
on or off in the
Macintosh Chooser.
Not available if
background printing
is turned off

  
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When background printing is on, your printer software lets you work in
other applications while printing takes place in the background.
Background printing also lets you set the following printing options:
Set a priority for the print job in the print queue
Set a specific time for printing the print job
Hold the print job for later printing
Follow these steps to set up background printing:
1 Open an application and select a document you want to print.
2 Open the File menu and click Print. You see the printer settings
dialog box.
3 Click the Background Printing icon. You see the following dialog
box:
4 To turn background printing on or off, click the On or Off radio button.