4.1.22 PCB Support and NCU PCB ..............................................................................4-54
4.1.23 Scanner Grounding Plate ...................................................................................4-55
4.1.24 EL (Eraser Lamp) Board ....................................................................................4-56
4.1.25 Harness Routing................................................................................................. 4-57
4.1.26 Cleaning of High-voltage Contacts and Grounding Contacts............................. 4-61
4.2 LUBRICATION ...............................................................................................................4-62
4.3 PERIODICAL REPLACEMENT PARTS ........................................................................4-64
4.4 MTBF/MTTR .................................................................................................................. 4-65