Brother International DCP 8080DN Service Manual - Page 201
Safety Precautions
UPC - 012502622697
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1. SAFETY PRECAUTIONS To avoid creating secondary problems by mishandling, follow the warnings and precautions below during maintenance work. WARNING • Always turn off the power switch and unplug the power cord from the power outlet before accessing any parts inside the machine. • When opening the front cover or back cover to access any parts inside the machine, never touch the shaded parts shown in the following figures. • DO NOT use flammable substances such as alcohol, benzine, thinner or any type of spray to clean the inside or outside of the machine. Doing this may cause a fire or electrical shock. • Be careful not to lose screws, washers, or other parts removed. • Be sure to apply grease to the gears and applicable positions specified in this chapter. • When using soldering irons or other heat-generating tools, take care not to accidentally damage parts such as wires, PCBs and covers. • Static electricity charged in your body may damage electronic parts. When transporting PCBs, be sure to wrap them in conductive sheets. • When replacing the PCB and all the other related parts, put on a grounding wrist band and perform the job on a static mat. Also take care not to touch the conductor sections on the flat cables or on the wire harness. • When connecting or disconnecting cable connectors, hold the connector body, not the cables. If the connector has a lock, release the connector lock first to release it. • After a repair, check not only the repaired portion but also all connectors. Also check that other related portions are functioning properly before operational checks. • After disconnecting flat cables, check that each cable is not damaged at its end or shortcircuited. • When connecting flat cables, do not insert them at an angle. After insertion, check that the cables are not at an angle. 5-1 Confidential