24 Chapter 2 Get to know the Océ TCS300 colour printing system hardwareThe printer operator panelThe keys and their functions[9][9] The keys and their functions (1 – 2)Number Component Function1 The upper softkeys The function of a softkey depends on the modeof the printer operator panel. (see ‘The on-linemode and the off-line mode’ on page 26)Use the upper softkeys to do the following■ Scroll through the information tabs on theon-line screen■ Scroll through the wizard cards on theoff-line screen■ Step through the wizards on the off-linescreen.2 The red attentionLEDsWhen operator action is required, the redLEDs illuminate and you will hear an audiosignal.The printer has the following types of signals.■ An attention signalA short interrupted audio signal. The redLEDs flash two times.■ A warning signalA short interrupted audio signal. The redLEDs remain illuminated.■ An error signalA long, uninterrupted audio signal. TheLEDs flash continuously.Note: The chapter Systemmessages and solutions describeshow to correct possible errors.3 The screen The screen of the printer operator paneldisplays different types of information. Thetype of information depends on the mode ofthe system.When the printer is in the on-line mode, thescreen displays general system informationand job information.When the printer is in the off-line mode, thescreen displays various wizards for user action(see ‘The on-line mode and the off-line mode’on page 26).