Epson AcuLaser C8600 Reference Manual page 164

1. Select Chooser from the Apple menu. Click the AL-C8600
icon and then click the USB port your printer is connected to.
2. Select Background Printing to turn background printing on or
off.
Note:
Background printing must be turned on for the EPSON Status
Monitor 3 to manage print jobs.
When background printing is on, you can use your Macintosh
while it is preparing a document for printing.
3. Close the Chooser.
162 Using the Printer Software with Macintosh
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