... ,answer sheets, or other OMR marks sheets 2, small and portable, only 0.8kg weight 3, hand feed * Specifications:Feeding mode: hand ... for developmentDLL and demo codeOperating condition:Indoor use only, temperature: 0°C~50°C,Humidity: 35%~95%, no erosive gas* Form designed ... color pencil, pen, signing pen or ball point pen A portable optical mark reader (or named: OMR scanner), small volume and ...