Caution When Replacing Service Parts; Electrical Shock - Canon JX500 Service Manual

3-2 Caution when Replacing Service Parts

3-2-1 Electrical shock

Be sure to disconnect the power cable and modular cable to prevent electrical shock.
If working with power on is required, do not use grounding strap. Using such equipment may
create conducting pathway, posing a risk of electrical shock.
See the following for parts and components that may generate electrical shock:
Power supply unit primary (supplied with AC voltage)
Telephone line primary
3-2-2 High temperature
In order to prevent burns during disassembly, allow at least ten minutes, after the power has been
switched off, for the high temperature components to cool down.
General high temperature components are as follows.
Motors
Power supply unit
Elements on driver ICs, etc., on PCBs (in particular, ICs with heatsinks)
FINE Cartridge aluminum plate
3-2-3 Fire
It is dangerous to throw lithium batteries and parts and components containing flammable
substances, such as cartridges, etc., into fire. Such parts and components must be disposed of in
accordance with local laws and regulations.
3-2-4 Ignition
When using solvents such as alcohol, etc., while conducting service, there is a danger of fire
igniting from heat from internal circuitry and from sparks. Before using any such solvents, be sure
to switch off the power and allow time for high temperature parts to cool down. Make sure that
there is sufficient ventilation when working with solvents.
3-2-5 Movable parts
In order to prevent accidents with movable parts, be sure to remove the power cable when
conducting service that requires disassembly. Also, take care that personal accessories and hair,
etc., are not caught in any moving parts.