HP LaserJet P4010 and P4510 Series - Software Technical Reference
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... option is specified in the print job. Manually printing on the second side of a page is disabled. To print on both sides (such as labels, transparencies, and envelopes) and the following models: ● HP LaserJet P4015x ● HP LaserJet P4515x These printer models support smart duplexing. ...; Automatically print on both sides ● Manually print on both sides Automatically print on both sides Select the Print on Both Sides (Manually) check box to print on the second side of the media because the HP LaserJet P4014, P4014n, P4015n, P4015tn, P4515n and P4515tn printer models do...
... option is specified in the print job. Manually printing on the second side of a page is disabled. To print on both sides (such as labels, transparencies, and envelopes) and the following models: ● HP LaserJet P4015x ● HP LaserJet P4515x These printer models support smart duplexing. ...; Automatically print on both sides ● Manually print on both sides Automatically print on both sides Select the Print on Both Sides (Manually) check box to print on the second side of the media because the HP LaserJet P4014, P4014n, P4015n, P4015tn, P4515n and P4515tn printer models do...