Our factory has a J2205 offset press produced by a Taipei company. When printing 250g/m2 whiteboard paper, there is a problem of overprinting. Through groping, summed up the following experiences:
1. Adjust the distance between the bottom surface of the front ruler and the top of the transfer bar, the height of the side ruler, the spring pressure, and the pull time.
2. Adjust the pressure of the pressure roller, pressure roller, and brush wheel on the paperboard and the tightness of the paper tape.
3. Calibrate the force of the paper feed bar and the impression cylinder gripper.
4. Adjust the sprocket on the feeder clutch to optimize the transfer time.
5. Clean the air circuit components, especially the suction valve and the paper separation cylinder. Then add oil lubrication.
6. Adjust the height of the pressure lever on the nozzle holder.