Gestetner cs331 Service Manual

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Place the original(s). 
 Page 2-9
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Press the  AUTO  key.
4. COPY DENSITY ADJUSTMENT
Automatic Copy Density Mode
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Place paper in the drawer(s). 
 
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Press the  
START  key.
In the automatic copy density mode, the background level
is detected during copying, so the copying speed becomes
slower.
 Select other copy modes as required.
Manual Copy Density Mode
1
Place paper in the drawer(s). 
 
Page 2-4
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Press either 
 or 
 key to adjust the copy density
to the desired level.
- Each time you press the 
 or 
 key, your copies will
become lighter or darker, respectively.
4
Press the  
START  key.
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Place the original(s). 
 Page 2-9
 Select other copy modes as required.
There are two types of image density adjustments: manual mode (default setting) and automatic mode.
In the manual mode, you can select the desired level of image density. It is recommended that lighter-
density originals be copied in the manual copy density mode. In the automatic mode, the sensors
automatically detect the density of each original and select the optimum image density and background
level.