when switched on the printer performs an in ernal self-test which checks the electronics, the print head carriage movement and the interface. power on is indicated by a green led on the operator panel (53).
when the internal test has been completed successfully the display shows ready 4 elq (or busy 4 elq in case data has already been transmitted). if an error occurs the display will show an error message and the printer enters the stop mode (see chapter 5.2 error messages).
