Third, take fingerprint time clock, if the print machine not reflect, may need to check the following situations: (1) fingerprint machine is in working condition, including circuit is normal; (2) the finger is too dry, if too dry can through the ha tone increase fingerprint humidity; Four, do not force is too large press fingerprint machine, especially with the tips of your fingers and nail part to dig mirror. This will cause the deformation of the fingerprint, influence contrast results, for...
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The time and attendance systems according to the design principle can be divided into the following two categories: 1. Controller own card reader (identification device) This kind of design defects is controller must be installed in the door so that part of the line must be open at the door, without professional card or password can easily open the door. 2. Controller and the card reader (identification device) of fission This kind of system controller installed in indoor, only card reader in...
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