User Activity

Have TR7020a.  I never purposely turn the printer off because there are up to 3 users in the household who can use the printer at any time during the day.  If there is a 30-60 min. period of non-use the printer "goes to sleep" and in order to print y...
After a time of non-use the printer turns off/goes to sleep.  I want it to wake up when a print job is initiated.  How do I set it up to make that happen?
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