Operation With Irda Instruments; Button Functions - testo 575 Bedienungsanleitung

5. Operation with IRDA instruments

Button functions

On/Off button
Switches testo 575 printer on/off
Contrast setting
Contrast can be set with the "-" and "+" buttons.
The contrast range can be set between 60 and
140%.
Press button to change contrast by 10 % in the
direction required (lighter or darker).
The last selected contrast is in the
testo 575 printer when switched on.
Note:
- It is possible to set the contrast while printing.
- A high contrast level influences battery life
negatively.
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