4.1 Exterior parts ...........................................................................................................................................................................F-5

4.1.1 Front door ....................................................................................................................................................................... F-5

4.1.2 Left cover........................................................................................................................................................................ F-5

4.1.3 Rear cover ...................................................................................................................................................................... F-5

4.1.4 Exit cover........................................................................................................................................................................ F-6

4.1.5 Control panel unit ........................................................................................................................................................... F-6

4.1.6 Control panel cover ........................................................................................................................................................ F-8

4.1.7 Tray1 .............................................................................................................................................................................. F-8

4.2 Units.........................................................................................................................................................................................F-9

4.2.1 Manual bypass tray unit.................................................................................................................................................. F-9

4.2.2 PH unit.......................................................................................................................................................................... F-10

4.2.3 2nd transfer pressure unit............................................................................................................................................. F-11

4.2.4 Main drive unit .............................................................................................................................................................. F-12

4.2.5 Manual bypass tray roller unit....................................................................................................................................... F-13

4.2.6 Paper feed unit ............................................................................................................................................................. F-14

4.2.7 PWB box....................................................................................................................................................................... F-15

4.2.8 Fusing drive unit ........................................................................................................................................................... F-16

4.3 Boards ...................................................................................................................................................................................F-18

4.3.1 Base board (BASEB).................................................................................................................................................... F-18

4.3.2 CPU board (CPUB) ...................................................................................................................................................... F-18

4.3.3 DC power supply (DCPS) ............................................................................................................................................. F-21

4.3.4 Backup board (ERB)..................................................................................................................................................... F-23

4.3.5 High voltage unit (HVPS).............................................................................................................................................. F-24

4.3.6 Machine condition monitor board/Fr (MCMB/Fr) .......................................................................................................... F-25

4.4 Motors....................................................................................................................................................................................F-25

4.4.1 Main motor (M1) ........................................................................................................................................................... F-25

4.4.2 Color motor (M2) .......................................................................................................................................................... F-25

4.4.3 Fusing motor (M3) ........................................................................................................................................................ F-26

4.4.4 Toner supply motor/YM (M4), Toner supply motor/CK (M5) ........................................................................................ F-26

4.4.5 Tray 1 lift-up motor (M6) ............................................................................................................................................... F-27

4.5 Clutches.................................................................................................................................................................................F-28

4.5.1 Bypass tray paper feed clutch (CL2) ............................................................................................................................ F-28

4.5.2 Tray 1 paper feed clutch (CL3)..................................................................................................................................... F-28

4.5.3 Registration clutch (CL4) .............................................................................................................................................. F-28

4.5.4 ADU transport clutch (CL5) .......................................................................................................................................... F-29

4.5.5 ADU feed clutch (CL6)/ADU reversal clutch (CL7)....................................................................................................... F-30

4.6 Fan motor ..............................................................................................................................................................................F-30

4.6.1 Machine cooling fan (FM1) ........................................................................................................................................... F-30

4.6.2 Toner suction fan (FM2) ............................................................................................................................................... F-31

4.7 Others ....................................................................................................................................................................................F-31

4.7.1 IDC sensor (IDCS1)...................................................................................................................................................... F-31

4.7.2 Temperature/humidity sensor (TEM/HUMS1) .............................................................................................................. F-32

4.7.3 Exit path switch solenoid (SD1).................................................................................................................................... F-33

5. PF-P20/PF-P21 ...................................................................................................................................................... F-34

5.1 Rear cover (PF-P20)..............................................................................................................................................................F-34

5.2 Rear cover (PF-P21)..............................................................................................................................................................F-34

5.3 Tray 2, tray 3 (PF-P20/PF-P21).............................................................................................................................................F-34

5.4 Paper Feed Unit (PF-P20) .....................................................................................................................................................F-34

5.5 Paper Feed Unit (PF-P21) .....................................................................................................................................................F-36

5.6 PC control board (PCCB) (PF-P20/PF-P21)..........................................................................................................................F-37

5.7 Drive motor (M1) (PF-P20/PF-P21) .......................................................................................................................................F-38

5.8 Drive assy (PF-P20/PF-P21) .................................................................................................................................................F-38

5.9 Lift-up motor (M2) (PF-P20/PF-P21) .....................................................................................................................................F-38

5.10 Paper feed clutch (CL1) (PF-P20/PF-P21).......................................................................................................................... F-39

5.11 Transport clutch (CL2) (PF-P20/PF-P21) ............................................................................................................................ F-39

6. UK-221 ................................................................................................................................................................... F-41

6.1 Wireless LAN board (UK-221) ...............................................................................................................................................F-41

7. EK-P08/EK-P09 ...................................................................................................................................................... F-42

7.1 USB hub board (EK-P08/EK-P09) .........................................................................................................................................F-42

8. EK-P10 ................................................................................................................................................................... F-43

8.1 NFC board (EK-P10) .............................................................................................................................................................F-43

9. KP-P03 ................................................................................................................................................................... F-44

9.1 Keypad (KP-P03)...................................................................................................................................................................F-44

10. CU-202 (Only for Europe) .....................................................................................................................................F-45

10.1 Clean unit (CU-202)............................................................................................................................................................. F-45

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