14
cover. Printer will enter into setting mode, and print the first parameter to be
set and current setup. For details method, please refer to Appendix A.
Method to exit parameter setup mode: open paper house cover, and keep
pressing the
【
FEED
】
button, then close the paper house and release
【
FEED
】
button, printer will save the settled parameter, exit setting mode, and enter into
normal working mode.
the settled parameter will not be saved if turned off the printer directly.
2.10 Entering program upgrading mode
When printer power is off
，
open paper case cover firstly, then keep pressing
FEED button, and press POWER button, then release POWER button after
hearing the buzzer “one low and one high” sound. The printer will enter into
program upgrading mode. At this time, the indicator flashes once each
second.
Notice: Both serial interface and USB interface can support program
upgrading online.
