User's Guide

58
Chapter 4 Last, but Not Least
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 chronic pain or discomfort in your hands, wrists, or arms, consult a
qualiedhealthspecialist.
External Mouse
If you use an external mouse, position the mouse at the same height as the keyboard
and within a comfortable reach.
Chair
Anadjustablechairthatprovidesrm,comfortablesupportisbest.Adjusttheheight
ofthechairsoyourthighsarehorizontalandyourfeetareatontheoor.Thebackof
the chair should support your lower back (lumbar region). Follow the manufacturer’s
instructionsforadjustingthebackresttotyourbodyproperly.
You might have to raise your chair so that your forearms and hands are at the proper
angletothekeyboard.Ifthismakesitimpossibletorestyourfeetatontheoor,you
can use a footrest with adjustable height and tilt to make up for any gap between the
oorandyourfeet.Oryoucanlowerthedesktoptoeliminatetheneedforafootrest.
Another option is to use a desk with a keyboard tray that’s lower than the regular work
surface.
Built-In Display
Adjusttheangleofthedisplaytominimizeglareandreectionsfromoverhead
lights and windows. Do not force the display if you meet resistance. The display is
not designed to open past 135 degrees.
You can adjust the brightness of the screen when you take the computer from one
work location to another, or if the lighting in your work area changes.