About Product:Product parameters1. Appearance size: 39 × 26 × 9cm3.) Weight: 8kg4.) Outer packaging: carton5.) Working power: 220V 50HzSimple use method1. Place the printed sulfuric acid paper on the front side and place it on the clean exposed glass.2. Cut the appropriate size of the exposure film over the sulfuric acid paper3. Place a suitable size of the photosensitive pad on top of the exposed film and place it in the fixture.4. Lightly close the upper cover of the clamp and tighten the fastener.5. Turn on the power, when the exposure power increases to 360,Turn off the machine (turn off the power)Click Start to complete the exposure.6. When the exposure is completed, the photosensitive pad can be taken out.7. Fill the ink !