5 Press Down ( ∇ ) twice to highlight Manual , and then press Enter again... ...to select Manual drying time: 4 Then press Enter . 18 Examples of How to Use the Front Panel The scroll bar at the right indicates that the list of available options is longer than can be displayed at a time. 3 Press the Down key ( ∇ ) several times until Drying time is highlighted. The number of times you have to press the Down key depends on: • whether you have an accessory card installed on an HP DesignJet 500 series printer, • which model of printer–HP DesignJet 500 or 800 series, • which options were recently used.