Downloading the following PostScript code to the LaserWriter Select 360 disables the sleep mode. After downloading this PostScript code the printer will not go into energy saving mode until you change the TimeToStandby to some other setting, in a numeric unit representing minutes.
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% Begin PostScript code
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(%Engine%) << /Password 0 /TimeToStandby 0 >> setdevparams
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% End PostScript code
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