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First, the ink fountain is opened according to the general ink volume, and the ink teeth are transferred to the middle. Then, loosen the screws on both sides of the lock ink fountain several times and press the ink knife under the hands, and add the white paper on both sides (6 to 10 sheets, depending on the amount of ink). Quickly change the ink knife and ink roll angle, clearance; increase ink volume.

Second, after the multicolor machine can not put ink and air pressure. Because it is wet and wet, it acts as a supplement and calendering effect. In this way, the field is bright and smooth.