User questions:
Encountered that the high-speed cylindrical bottle UV printer reports an error in the printing, exceeds the boundary, and the UV light does not light up, what should I do?
Reason:
1: The raster decoder is bad.
2: The XB board is broken, and the UV light will not light up when the grating decoder cannot read.
Solution:
1. Replace the raster decoder.
2. Replace the XB board.
