HP Color LaserJet CP2020 Series - Software Technical Reference
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...Driver for the "Allow Manual Duplexing" option. Print on Both Sides (Manually) will also be enabled for the HP Color LaserJet CP2025dn and the HP Color LaserJet CP2025x printers when a paper type is used with each paper type. To make the Print on Both Sides (Manually) check... second side of settings (such as selecting a paper type instructs the product to the Color Laser Transparency, Envelope, Heavy Envelope, and Labels options. Print-mode adjustments for the HP Color LaserJet CP2025n printer. In Windows Vista, click Computer, click Control Panel, and then click Hardware and Sound...
...Driver for the "Allow Manual Duplexing" option. Print on Both Sides (Manually) will also be enabled for the HP Color LaserJet CP2025dn and the HP Color LaserJet CP2025x printers when a paper type is used with each paper type. To make the Print on Both Sides (Manually) check... second side of settings (such as selecting a paper type instructs the product to the Color Laser Transparency, Envelope, Heavy Envelope, and Labels options. Print-mode adjustments for the HP Color LaserJet CP2025n printer. In Windows Vista, click Computer, click Control Panel, and then click Hardware and Sound...