1. Observe the recognition of the MARK point, whether the recognition center will be in the center of the MARK point, the general score should be better than 500 or more

2. Observe the width of the conveyor belt, the track width should not be too wide, otherwise the PCB cannot be clamped

3. Check whether the installation of the top PIN or BACKUP PIN system is in place. If this happens, remove all the top PINs and reinstall them.

4. Observe whether the laser stencil is well fixed and try to push it manually

5. Whether the PCB thickness is set properly, this should be checked first

6. Check whether the clamping device of the patch stencil correction system is normal (this should be confirmed in the self-diagnosis)

7. Replace the connecting line between the nextmove card and the control box to see if the connection is loose

8. Swap the control box with another one, sometimes there is a problem with the slot on the back panel of the control box

9. Check whether the bearing in front of the correction motor is worn or defective

10. The system software or hard disk is abnormal, reinstall the system or replace the motor

11. If it doesn’t work, you need to find a printing machine manufacturer.