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options. Try out by pressing the false colour button. This is the rightmost
button on the control panel. Each time you press it, the colours will change.
After you went through all 7 options it will start over again. If you want to
reverse foreground and background, press the text button.
The available false colours are black-white, black-yellow, black-cyan, black-
green, black-magenta, blue-white and blue-yellow.
Select the colours you prefer with the false colour button and press the text
button for reversing foreground and background until you find the option
you prefer.
In picture mode, the false colour button has a different function. There you
may change the white balance. Press this button to toggle between a warm
reddish white, especially for viewing photos, a neutral white or a cold blueish
white that is good for reading coloured texts.
Note: VISIO 22+ remembers the colour settings you made. So if you switch
between Text mode and Picture mode and come back to Text mode, you find
the previous colours there. VISIO 22+ will even remember your last settings
when you switch it off.
Now that you found your preferred colour settings in text mode, let us try to
read some more problematic text with low contrast or faint print. In most
cases, VISIO's automatic image control will present a good quality magnified
image of your document. This is easy with black characters on bright white
paper. However sometimes documents are of low quality like coloured text
on coloured background or bad copies with faint print on grey paper. In those
cases we make use of the Image Optimizer button. This is the third button
from the left, directly left to the zoom knob. The image optimizer button
selects one of five levels of optimization. So if you do not get a good quality
representation on VISIO's display, simply press this button several times until
you get the best result.
This button works in picture mode as well as in text mode.
Note: You will often find the previous setting was the best one, so the trick to
get one step back is by pressing the button four more times.
Now, there is only on buttons left to explain. The auto focus button. This
sounds complicated, but is very easy to use.
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