How to update the inkjet plotter

How to update the inkjet plotter

1.first copy the update file to USB disk, please empty the USB disk, and put the flie under the Root directory.

2.insert the USB disk to the inkjet plotter

3.before turn on the power, first press the connet/leave key, then turn on the plotter power

4.the LCD will display  Update firmware/  Update…,  it is ok

5.wait about 2 minutes, it will finish the update process, and the inkjet plotter will re-start automatically  and recover to the off-line status.