You can use
the printer software to change the time period before the product
enters sleep mode or turns off automatically.
Make sure your product is turned on.
In the Apple menu or the Dock, select System Preferences. Select Print & Fax,
Print & Scan, or Printers & Scanners, select your
product, and select Options &
Supplies. Select Utility
and select Open Printer
Utility.
Select Printer
Settings. You see this window:
Select the length of time after which you want the product
to automatically turn off when it is not in use as the Power Off Timer setting.
Select the time period you want before the product goes to
sleep as the Sleep Timer
setting.