Apple A1534 ユーザーズマニュアル

Safety, handling, and support 

Storing your MacBook. If you are going to store your MacBook for an extended period of time, 

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charging the battery to 50 percent every six months or so.

Cleaning your MacBook. 
shut down your MacBook, and then unplug the 29W USB Type-C Power Adapter. Then dampen a 
clean, lint-free cloth to wipe the MacBook exterior. Avoid getting moisture in any openings. Don’t 
spray liquid directly on the computer. Don’t use aerosol sprays, solvents, abrasives, or cleaners 

Cleaning the MacBook screen. 
unplug the 29W USB Type-C Power Adapter. Dampen a clean, lint-free cloth with just water and 
wipe the screen. Don’t spray liquid directly on the screen. 

Understanding ergonomics

When you use the keyboard and trackpad, your shoulders should be relaxed. Your upper arm and 
forearm should form an angle that is slightly greater than a right angle, with your wrist and hand 
in roughly a straight line.

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Avoid rolling your thumbs under your palms.

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Change hand positions often to avoid fatigue. Some computer users might develop discomfort 
in their hands, wrists, or arms after intensive work without breaks. If you begin to develop 

External mouse. If you use an external mouse, position the mouse at the same height as the 
keyboard and within a comfortable reach.

Built-in display. 
lights and windows. Do not force the display if you meet resistance. The display is not designed 
to open past 135 degrees.

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