What is the Types of optical mark reader?

Optical Mark Readers (OMRs) can be categorized into several types based on their functionality and design. The most common types include sheet-fed OMRs, which read marks from individual sheets, and continuous-feed OMRs, designed for high-volume scanning of forms. Additionally, there are handheld OMRs for portable scanning and specialized OMR systems that can integrate with digital devices for real-time data processing. Each type is tailored for specific applications, such as surveys, exams, and data collection.