The system has no any 

reactions

No power supply or the circuit 

did not connect well.

Check if the power supply

 is connected well

Red light keeps on with   "Kaba" sound

Position limitation protection

Check if over input signal 

amplitude. If the signal is normal,

please contact us.

Scan motor swings 

lightly after turning on

Too much interference or input 

the signal circuit did not 

 connect very well

Check the interference sources 

and the input signal circuit

Motor squeals after 

turning on, the drive board and   motor overheat

Driver board and motors did not connect well/The   mirrors or

 clips become loose.

Check the wiring/ the mirrors

 and clips.

Mirror reflection 

power is weak

Lightpath is not aligned well

Align the light path of the marking machine; If the light path is normal, please contact us.

Marking graphics 

becomes one straight line

One motor can not 

move normally

Checking the wiring connection 

between the motors, drive boards

and control board

Waves exist in the 

marking line

Grounding problems/

Surrounded by strong interference sources/The Anti-interference ability to mark control board is poor

Check if the ground connection is 

well/Check if there is a strong 

interference source surrounded/

Check the position control signal of 

marking control board

Marking square becomes 

rhombus or one side not 

straight

The abnormal signal output  from 

D/A board.

Replace D/A board, if not solved, 

please contact us.