Lenovo 10YC, Hardware Maintenance Manual, Page: 46 / 106

Air circulation
The computer produces heat. The computer has a fan that pulls in fresh air and forces out hot air through the
air vents. Blocking the air vents can cause overheating, which might result in a malfunction or damage.
Position the computer so that nothing blocks the air vents; usually, 51 mm (2 inches) of air space is sufficient.
Ensure that the vented air is not blowing on people.
Electrical outlet locations and cable lengths
The following factors might determine the final placement of the computer:
• Locations of electrical outlets
• Length of power cords or power adapters
• Length of the cables that are connected to other devices
For more information about power cords or power adapters, see “Power cords and power adapters” on page
v.
Comfort
Although no single working position is ideal for everyone, here are a few guidelines to help you find a position
that suits you best. The following figure sets an example for your reference.
• Screen position: Keep the screen at a comfortable viewing distance, usually 51-61 cm (20-24 inches).
Then, adjust the screen so that the top of the screen is at or slightly below eye level and you can view it
without twisting your body.
• Chair position: Use a chair that gives you good back support and seat height adjustment. Use chair
adjustments to best suit your desired posture.
• Head position: Keep your head and neck in a comfortable and neutral (vertical or upright) position.
• Arm and hand positions: Keep your forearms, wrists, and hands in a relaxed and neutral (horizontal)
position. Type with a soft touch without pounding the keys.
• Leg position: Keep your thighs parallel to the floor and your feet flat on the floor or on a footrest.
Make minor modifications in your working posture to deter the onset of discomfort caused by long periods of
working in the same position. Frequent, short breaks from your work also help to prevent minor discomfort
associated with your working posture.
Accessibility information
Lenovo is committed to providing users who have hearing, vision, and mobility limitations with greater
access to information and technology. This section provides information about the ways these users can get
the most out of their computer experience. You also can get the most up-to-date accessibility information
from the following Web site:
http://www.lenovo.com/accessibility
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M710q Hardware Maintenance Manual