HP printer error code e2 is a common problem that occurs when printing on your printer. This error is especially a numeric depiction for displaying the miscommunication between the PC and HP printer. The error typically happens when there is a weak affiliation or all printers and PC devices are not properly connected to each other. I would recommend visiting the blog, which is dedicated to these kinds of issues.
What is False Rejection Rate & why it is important so - this article will explain why you should keep in mind this criteria when you are implementing a biometric system.