ContentsContents12.1 Periodically Replaced Parts .......................................................................................................................................12-112.1.1 Overview.................................................................................................................................................................................. 12-112.1.2 Reader Unit .............................................................................................................................................................................. 12-112.1.3 Printer Unit............................................................................................................................................................................... 12-112.2 Durables and Consumables ........................................................................................................................................12-412.2.1 Overview.................................................................................................................................................................................. 12-412.2.2 Reader Unit .............................................................................................................................................................................. 12-412.2.3 Printer Unit............................................................................................................................................................................... 12-412.3 Scheduled Servicing Basic Procedure........................................................................................................................12-812.3.1 General Procedure for Scheduled Servicing ............................................................................................................................ 12-812.3.2 Scheduled Servicing List Reader Unit ..................................................................................................................................... 12-812.3.3 Scheduled Servicing List Printer Unit ..................................................................................................................................... 12-912.4 Cleaning ...................................................................................................................................................................12-1412.4.1 Cleaning for secondary transfer rear guide ............................................................................................................................ 12-1412.4.2 Cleaning of registration roller, registration guide and transparency sensor .......................................................................... 12-1512.4.3 Cleaning for buffer decurler................................................................................................................................................... 12-16