Samsung SCX-340x series Service Manual

Also see for SCX-340x Series: User guide Manual Del Usuario User manual

Contents

3. Disassembly and Reassembly3. Disassembly and Reassembly3.1. Precautions when replacing parts3.1.1. Precautions when assembling and disassembling• Use only approved Samsung spare parts. Ensure that part number, product name, any voltage, current or temperaturerating are correct. Failure to do so could result in damage to the machine, circuit overload, fire or electric shock.• Do not make any unauthorized changes or additions to the printer, these could cause the printer to malfunction andcreate electric shock or fire hazards.• Take care when dismantling the unit to note where each screw goes. There are 19 different screws. Use of the wrongscrew could lead to system failure, short circuit or electric shock.• Do not disassemble the LSU unit. Once it is disassembled dust is admitted to the mirror chamber and will seriouslydegrade print quality. There are no serviceable parts inside.• Regularly check the condition of the power cord, plug and socket. Bad contacts could lead to overheating and firfe.Damaged cables could lead to electric shock or unit malfunction.3.1.2. Preautions when handling PBAStatic electricity can damage a PBA, always used approved anti-static precautions when handling or storing a PBA.• Precautions when moving and storing PBA1) Please keep PBA in a conductive case, anti-static bag, or wrapped in aluminum foil.2) Do not store a PBA where it is exposed to direct sunlight.• Precautions when replacing PBA1) Disconnect power connectors first, before disconnecting other cables.2) Do not touch any soldered connections, connector terminals or other electronic parts when handling insulated parts.• Precautions when checking PBA1) Before touching a PBA, please touch other grounded areas of the chassis to discharge any static electrical chargeon the body.2) Take care not to touch the PBA with your bare hands or metal objects as you could create a short circuit or get anelectric shock. Take extra care when handling PBAs with moving parts fitted such as sensors, motors or lamps asthey may get hot.3) Take care when fitting, or removing, screws. Look out for hidden screws. Always ensure that the correct screw isused and always ensure that when toothed washers are removed they are refitted in their original positions.Copyright© 1995-2011 SAMSUNG. All rights reserved. 3-1