iv
3 READING FEATURES ............................................................................... 29
3.1 Step-Ladder Mode ...................................................................................... 29
3.2 Picket-Fence Mode ..................................................................................... 30
3.3 Performance ............................................................................................... 31
3.3.1 Raster ......................................................................................................... 31
3.4 Reading Diagrams ...................................................................................... 32
4 MAINTENANCE.......................................................................................... 34
4.1 Cleaning...................................................................................................... 34
5 TECHNICAL FEATURES ........................................................................... 35