Only the debit note without fingerprint signature has the same legal effect. On the issue of signing or fingerprinting in IOUs, signing and fingerprinting are allowed by law, and the law does not stipulate signing and fingerprinting, so as long as they are legal and effective. The main purpose of fingerprint identification is to make fingerprint identification more convenient and scientific than handwriting identification when disputes arise. Therefore, as long as there is my signature, even if there is no fingerprint, such an iou is legally binding.
Legal objectivity:
According to Article 490 of the Civil Code, if the parties conclude a contract in the form of a contract, the contract is established when the parties sign, seal or press their fingerprints.