Confidential Disassembly/Reassembly Common cautions when disassembling/reassembling the Product 61 EPSON WF-4740/EC-4040 Series / WF-4730/EC-4030 Series / WF-4720/EC-4020 Series Revision D 2.2 Common cautions when disassembling/reassembling the Product This section describes common cautions when disassembling/reassembling the product. Before disassembling/reassembling the printer including this product, be sure to read " Safety Precautions (p3)" and this section. Item Content Photo/Illustration When handling parts 1. When handling new parts for replacement, take care not to contaminate or damage them. 2. When disassembling/reassembling the parts, take care not to damage the FFCs/cables/Ink tube if there is a possibility of coming into contact with them. 3. When reassembling the product, take care not to let components of the unit come off. When reassembling When installing parts, take care not to damage them when securing them by tightening screws. --- When applying grease Do not lubricate any part other than those specified. If grease is applied on such a part, wipe it off completely. --- External parts Confirm visually that there are no scratches, dirt, and gaps. --- Moving parts After reassembling, confirm that there are no abnormal noises and they work smoothly. --- Timing belts 1. Take care not to broke them. 2. Confirm that it is installed properly onto the transmissive sections of the pinion gear/driven roller. Motors Take care not to damage them. --- Sensors 1. Take care not to touch the detector sections. 2. As for the encoder Sensor used with a circular scale, the photo sensor section should be set over the encoded area of the circular scale. 3. Take care not to get injured by the sharp ends of the board terminal on the back of the circuit boards when handling the sensors or the peripheral parts. Scales 1. Take care not to touch the encoded area. 2. Install it with the black triangular section down. (CR Scale only) 3. Wipe off alcohol before installing. (CR Scale only) 4. Confirm that they do not touch the photo sensors after installation. Waste ink pads 1. Take care not to stain your hands with the waste ink soaked in the ink pads. If ink comes into contact with your hands, wash it off with water immediately. 2. Take care not to stain the printer's parts with the waste ink soaked in the ink pads. If ink comes into contact with the parts, wash it off. (Especially, pay attention to Paper Guide Front/Lower Porous Pad) 2. 3. 2. 2. 3. 2. 4. 2. 2.