| 摘要 |
A powder apparatus for a printing press includes delivery chains or a transfer cylinder, spray nozzles, and a circular columnar rotary member or transfer cylinder. The delivery chains or transfer cylinder has gripper units or grippers for holding and moving in a sheet convey direction a sheet having a printing surface. The spray nozzles spray a powder toward the printing surface of the sheet which is being conveyed by the delivery chains or transfer cylinder. The rotary member or transfer cylinder is provided downstream of the spray nozzles in the sheet convey direction and is supported rotatably. The rotary member or transfer cylinder has at least one notch that opposes the gripper units or grippers, during rotation, which move along with sheet convey operation.
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