Contents4.6.7 Image Data Flow When Using the FAX Receive Function .................................................................................... 4- 194.6.8 Image Data Flow When Using the FAX Receive Function .................................................................................... 4- 204.6.9 Image Data Flow When Using the PDL Function .................................................................................................. 4- 204.6.10 Image Data Flow When Using the PDL Function ................................................................................................ 4- 224.7 Parts Replacement Procedure .................................................................................................................4- 234.7.1 Controller Box........................................................................................................................................................ 4- 234.7.1.1 Preparation for Removing the Controller Box ........................................................................................................................ 4- 234.7.1.2 Removing the Controller Box ................................................................................................................................................. 4- 234.7.2 Main Controller PCB (main)................................................................................................................................... 4- 244.7.2.1 Preparation for Removing the Main Controller PCB .............................................................................................................. 4- 244.7.2.2 Removing the Main Controller PCB (Main)............................................................................................................................ 4- 244.7.2.3 Removing the Main Controller PCB (Main)............................................................................................................................ 4- 254.7.3 HDD....................................................................................................................................................................... 4- 264.7.3.1 Preparation for Removing the HDD ....................................................................................................................................... 4- 264.7.3.2 Removing the HDD ................................................................................................................................................................ 4- 26