| 摘要 |
A stencil sheet retaining device includes a clamping plate (44) for retaining an end portion of the stencil sheet (M), and a flapper member (49) for drawing out the end portion of the stencil sheet (M) from the clamping plate (44) side. A first contact piece (48) attached to the clamping plate (44) and a second contact piece (51) attached to the flapper member (49) are pressed due to the profiles of the cam grooves (56a, 56b) of a movable cam member (56) according to the rotary position of the rotary cylindrical drum (6), so that the clamping plate (44) and the flapper member (49) can be opened and the open angle of the clamping plate (44) and the flapper member (49) can be adjusted.
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