Chapter 6  Maintenance 
   At the Maintenance screen, press the appropriate arrow keys ([↑][↓][←][→]) 
to move the cursor to Zap aperture. 
 Press [ENTER] to zap the aperture and the zapping progress will be displayed at 
the bottom of the screen, as Figure 6-6 shows.   
 When the zapping is done, the screen will return to the initial state. 
 
 
Figure 6-6 Zapping aperture 
 
6.2.5 Flush Aperture  
You can perform the Flush aperture procedure to assist zapping the aperture. 
 
Follow the steps given below to perform the procedure: 
  At the Maintenance screen, press the appropriate arrow keys ([↑][↓][←][→]) 
to move the cursor to Flush aperture. 
   Press [ENTER] to flush the aperture and the flushing progress will be displayed 
at the bottom of the screen, as Figure 6-7 shows.   
   When the flushing is done, the screen will return to the initial state. 
 
   BC-2800 Auto Hematology Analyzer (V1.0)                        6-8