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OMR answer sheets contain boxes, circles or elliptical bubbles where students or candidates mark using a 2B pencil or a #2 pencil. OMR scanner reads specific locations of answer sheets and converts their information into data.
OMR scanner requires a higher positioning accuracy answer sheet. The paper used as answer sheet should have uniform thickness, good stiffness and smooth surface and high cutting accuracy. Only the conditions above are satisfied, double sheets or sheet jam will not happen during reading.
OMR sheet specification
Normal 75g per square meter A4 paper is available to be used to print OMR sheets.
Thick paper is not necessary. In fact, both thin and thick paper is 100% accurate.
K-12 and higher education
OMR answer sheets are widely used by education institution for objective tests based on the pattern of multiple choice questions.
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