Disassembly and Reassembly
3-1
3. Disassembly and Reassembly

3.1 Precautions when replacing parts

3.1.1 Precautions when assembling and disassembling

* Use only approved spare parts. Ensure that part number, product name, any voltage, current or
temperature rating are correct. Failure to do so could result in damage to the machine, circuit overload, re
or electric shock.
* Do not make any unauthorized changes or additions to the printer, these could cause the printer to
malfunction and create electric shock or re hazards.
* Take care when dismantling the unit to note where each screw goes. There are 19 different screws. Use of
the wrong screw 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
seriously degrade 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 rfe. Damaged cables could lead to electric shock or unit malfunction.

3.1.2 Preautions when handling PBA

Static electricity can damage a PBA, always used approved anti-static precautions when handling or storing
a PBA.
>> Precautions when moving and storing PBA
1. 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 PBA
1. Disconnect power connectors rst, before disconnecting other cables
2. Do not touch any soldered connections, connector terminals or other electronic parts when handling
insulated parts.
>> Precautions when checking PBA
1. Before touching a PBA, please touch other grounded areas of the chassis to discharge any static electrical
charge on 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 an electric shock. Take extra care when handling PBAs with moving parts tted such as sensors,
motors or lamps as they may get hot.
3. Take care when tting, or removing, screws. Look out for hidden screws. Always ensure that the correct
screw is used and always ensure that when toothed washers are removed they are retted in their original
positions.

3.1.3 Releasing Plastic Latches

Many of the parts are held in place with plastic latches. Release carefully to prevent
damage.
To remove such parts, press the hook end of the latch away from the part to
which it is latched.