| 摘要 |
PROBLEM TO BE SOLVED: To provide a check off stamp device without dropping dust dropped on a guide plate in an opening in the check off stamp device for pushing a check off stamp on an original of which reading is finished. SOLUTION: In the check off stamp device comprising a guide plate 6 for guiding conveying of an original 5, and a check off stamp 7 provided oppositely at the opening 6a provided at the plate, a rib 9 extended in a direction crossing with the conveying direction is provided in an overall width perpendicular to the conveying direction of the original 5 of the opening 6a.
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