40931201TH Rev. 4 202 /3. PARTS REPLACEMENTIn this section, the removing and installing procedure of assembly and unit in field are described.Although this section describes the removing procedure, the installing procedure is basically toconduct the removing one in reverse.3.1 Precautions Concerning Parts Replacement(1) Parts replacements must be carried out, by first turning the printer power switch off “O” andremoving the High Capacity Second / Third Paper Feeder from the printer.(2) Do not disassemble the Second/Third Paper Feeder if it is operating normally.(3) Establish the extent of disassembly suitable for the purpose of the procedure, and do notdisassemble any more than necessary.(4) Only specified service tools may be used.(5) Disassembly must be carried out according to the prescribed procedures. Parts may bedamaged if such procedures are not followed.(6) Small parts such as screws and collars can easily be lost, therefore these parts should betemporarily fixed in the original location.(7) When handling printed circuit boards, do not use any glove which may generate staticelectricity.(8) Do not place the printed circuit boards directly on the equipment or floor.