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    • 3. 发明专利
    • COPYING MACHINE
    • JPS55159460A
    • 1980-12-11
    • JP6709879
    • 1979-05-30
    • CANON KK
    • GOSHIMA YOSHITOMO
    • B65H7/08B41L21/02B41L21/06B65H5/12B65H9/00B65H9/14B65H29/56G03B27/00G03B27/14G03G15/00
    • PURPOSE:To prevent the disengagement of the copying material under conveying from its gripper by detecting whether the copying material is surely gripped by the gripper or not and controlling the copying process in the copying machine of the type of gripping the copying material by the gripper and conveying the same. CONSTITUTION:During normal feeding, copying material P (P') abuts against a static timing roller 51 and makes a deflection. This causes a microswitch 103 to actuate to revolve a timing roller 51 which in turn causes the leading end of the copying material P (P') to abut against the stopper part of a gripper 53. At this time, these is no more deflection of the copying material P (P') and the operation of the microswitch 103 is stopped to stop the timing roller 51. At the time of abnormal feeding, the deflection of the copying material P (P') is not enough and the timing roller 51 fails to operate normally and when the material is not gripped surely by the gripper 53, the microswitch 103 is not normally actuated. At that time, a solenoid SL lets a guide plate 101 to rotate up to the place of the dotted line and drop the copying material P (P') onto a tray 105.
    • 8. 发明专利
    • PRINTING MACHINE
    • JPH11147358A
    • 1999-06-02
    • JP14909198
    • 1998-05-29
    • TOHOKU RIKO KK
    • SATO MITSUO
    • B41L13/04B41F21/05B41L13/06B41L13/16B41L21/06B65H5/12
    • PROBLEM TO BE SOLVED: To eliminate a fault such as an ink dirt or the like of a printed matter due to a breakage of a master by preventing the master from being broken on a printing drum even in the case of using a thick printing sheet such as, for example, a cardboard, an envelope or the like. SOLUTION: The printing machine comprises a printing drum 1, a press cylinder 8 having a sheet clamper 14 for clamping a leading end of a printing sheet 13, and a pair of upper and lower register roller pairs 15, 16 for feeding the end of the sheet 13 toward the clamper 14, thereby printing by relatively urging the cylinder 8 to the drum 1. In this case, the machine also comprises a stencil print controller for altering a feeding timing for feeding the end of the sheet 13 to the clamper 14. The controller alters the timing so as to deviate a position of the end of the sheet (cardboard) 13 to the clamper 14 at a predetermined amount to an upstream side of a conveying direction X of the sheet in the case of using a specific printing sheet (cardboard) 13.