Lenovo ThinkPad X1 Carbon 20KG, User Manual

Page: 64 / 148

General posture : 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.
Display : Position the display to maintain a comfortable viewing distance of 510 mm to 760 mm (20 inches to
30 inches). Avoid glare or reflections on the display from overhead lighting or outside sources of light. Keep
the display screen clean and set the brightness to levels that enable you to see the screen clearly. Press the
brightness control keys to adjust display brightness.
Head position : Keep your head and neck in a comfortable and neutral (vertical, or upright) position.
Chair : Use a chair that gives you good back support and seat height adjustment. Use chair adjustments to
best suit your comfort posture.
Arm and hand position : If available, use chair arm rests or an area on your working surface to provide
weight support for your arms. 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.
What if you are traveling?
It might not be possible to observe the best ergonomic practices when you are using your computer while on
the move or in a casual setting. Regardless of the setting, try to observe as many of the tips as possible.
Sitting properly and using adequate lighting, for example, helps you maintain desirable levels of comfort and
performance. If your work area is not in an office setting, ensure to take special note of employing active
sitting and taking work breaks. Many ThinkPad product solutions are available to help you modify and
expand your computer to best suit your needs. You can find some of these options at
http://www.lenovo.com/
essentials
. Explore your options for docking solutions and external products that provide the adjustability and
features that you want.
Questions about vision?
The visual display screens of ThinkPad notebook computers are designed to meet the highest standards.
These visual display screens provide you with clear, crisp images and large, bright displays that are easy to
see, yet easy on the eyes. Any concentrated and sustained visual activity can be tiring. If you have questions
on eye fatigue or visual discomfort, consult a vision-care specialist for advice.
Cleaning and maintenance
With appropriate care and maintenance your computer will serve you reliably. The following topics offer
information to help you keep your computer in top working order.
Basic maintenance tips
Here are some basic points about keeping your computer functioning properly:
• Store packing materials safely out of the reach of children to prevent the risk of suffocation from plastic
bags.
• Keep your computer away from magnets, activated cellular phones, electrical appliances, or speakers
(more than 13 cm or 5 inches).
• Avoid subjecting your computer to extreme temperatures (below 5°C/41°F or above 35°C/95°F).
• Avoid placing any objects (including paper) between the display and the keyboard or the palm rest.
• Your computer display is designed to be opened and used at an angle slightly greater than 90 degrees. Do
not open the display beyond 180 degrees. Otherwise, the computer hinge might get damaged.
46
User Guide