| 摘要 |
PROBLEM TO BE SOLVED: To provide an in-line sealing system for suppressing irregularity of a peel strength of a sealing post card. SOLUTION: In this in-line sealing system 10, when a driving start signal from a printer control unit 32 is inputted to a sealer control unit 30, a distance between a press-fixing rollers 26A and 26B is made narrower than that in a steady state, and when sheets of paper in the given number pass through the press-fixing portion 24, the distance between the press-fixing rollers 26A and 26B are returned to the steady state. Immediately after running, an oil amount adhered to a sheet of paper in the fixing portion 40 of a printer 12 is larger than that in the steady state so that a peel strength of the sealing post card is insufficient, when the press-fixing force is constant. Therefore, by increasing the press-fixing force only immediately after start of running, irregularity of the peel strength of the sealing post card is suppressed.
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