1. The light barrier system is faulty, and the belt is reversed, resulting in the occurrence of black screen, flower screen and white screen, depending on the specific model. Therefore, the user of the security inspection machine should specify the specific machine model, such as SMS-6550, SMS-8065, or SMS- 10080. It is helpful for manufacturers to judge specific problems in the first time.

2. The motor (power system failure) causes the motor not to run and the conveyor belt not to rotate. There are four reasons: one is the motor driving capacitor, the other is the driving relay, the third is the motor itself, and the fourth is the driven roller. The abnormal noise of the equipment and the immobility of the motor belt of the equipment are the main culprits.

3. The X-ray system is out of order, which is an important source of equipment imaging. Different manufacturers use different X-ray sources. Compared with Beijing source, Shanghai source and American source, American source is more expensive and the maintenance price is higher, while the other two sources are more moderate.

4. Display system failure, VGA failure, graphics card failure, display failure.

5. Internal power box failure, which is difficult to eliminate, is mainly that it is not bad under normal circumstances, but it must be a major circuit board failure.

Technical support can be provided when the security inspection machine fails.