There may be many reasons why there is no duplicate check record in the duplicate check record after computer paper is used, as follows:

Abnormal or faulty database: If the database on which paper duplicate checking depends is abnormal or faulty, the duplicate checking result may not be displayed normally. In this case, you can try to check the copy again, or contact relevant technicians to repair and deal with it.

The time is too long, and the record is cleared: the paperless duplicate checking system only saves the test report within 10 days. If the test report is not downloaded in time after the test is completed, and the time has exceeded the retention period of the system, these records may be uniformly cleared in the background. Therefore, the test report should be downloaded as soon as possible after the test is completed, in case of emergency.