 
  29
MAINTENANCE  DAILY MAINTENANCE  
Smudges and dirt can interfere with the proper scanning of a bar code.  Therefore, the output window will need occasional 
cleaning. 
For the glass window: 
1.  Spray glass cleaner onto lint free, non-abrasive cleaning cloth. 
2.  Gently wipe the scanner window. 
For the red window: 
1.  Use mild soap and water with lint free, non-abrasive cleaning cloth. 
2.  Gently wipe the scanner window. 
Also make sure the debris channels are cleaned regularly. 
HORIZONTAL SCAN WINDOW REPLACEMENT  
Figure 37. Horizontal Scan Window Replacement