| 摘要 |
<p>PURPOSE:To attain line reading without the necessity of line marks in a business form by previously printing three reference marks in prescribed parts of sheet angles in the business form, scanning inside an image buffer in which the image of the business form is stored, and detecting three reference marks. CONSTITUTION:The image of the business form, where three reference marks 31a, 31b and 31c of a same size are printed in the prescribed parts of three sheet angles among four, is stored in the image buffer 23. Inside the image buffer 23 is scanned and three reference marks 31a, 31b and 31c are detected, whereby the carrier direction of the business form is decided based on the array state of the marks. Thus, the reading of the business form fed in an arbitrary carrier direction is attained with the necessity of read control information, and line reading is attained without the necessity of the line marks in the business form.</p> |
