Brother HL-2150N 서비스 매뉴얼 - 페이지 7

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CHAPTER 3 DISASSEMBLY AND ASSEMBLY

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.

• 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.

• Before handling any PCBs, touch a metal portion of the equipment to discharge any static

electricity charge on your body, or the electronic parts or components may be damaged.

• When transporting PCBs, be sure to wrap them in the correct protective packaging.

• 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.