8. Exploded Views and Parts List (SCX-4720FN/XAZ)
8.1 Main Assembly Exploded view 8.2 Rx Drive Assy Exploded view 8.3 ADF Assembly Exploded view 8.4 OPE Assembly Exploded view 8.5 Scanner Assembly Exploded view 8.6 Middle Cover Assembly Exploded view 8.7 Frame Assy Exploded view 8.8 Fuser Assy Exploded view 8.9 MP Assembly Exploded view 8.10 Cassette Assy Exploded view 8.11 SCF(Option Cassette Frame) Exploded view
Exploded drawings and service parts lists are given for items which may be expected to have a higher failure rate. Where a failure occurs you can identify the part in the exploded diagram and, using the parts cross reference number, refer to the appropriate parts list to identify the part number. Note : Parts numbers given here are correct at the time of publication. When ordering parts please use the on-line ordering system to check if there have been any changes to part numbers.
Part Number & Description format.
Part numbers and descriptions are defined according to a company standard. The information below will help you to understand the part number format and assist when ordering spare parts.
There are two types of Part number format.
number This format is used throughout Samsung on all product ranges. Typically it is used for small components and electronic parts.

letter

This format is controlled by individual Samsung Divisions and is used on specific products, typically for mechanical parts. Type 2 format part numbers fall into 2 categories:
Assemblies consisting of 2 or more parts. Also used for Service manuals, user guides and diagrams. Assy parts and A/S privately used Parts can be distinguished by the part Code and Description. They are always Type 2 format. The 2 leading characters indicate private or assembly parts.
21-1 21-25 21-4 21-4 17-17-23-1 23-2

8.1 Main Assembly

SCX-4520

SCX-4720F

1 22-12 22

22-3 22-2 22-11 3

1-1 22-22-7 22-8 22-13 22-10 22-9

22-14 27

18 19-1 19-4 19-2 19-3 19

6 SCF 11

Toner Cartridge

8.2 RX Drive Assembly

8.3 ADF Assembly

5-2 5-3 6-3 5-2 6-1

0 : Service Part
*ELA HOU-ADF_R2 (JC96-03169A)

ADF ASSY

1-2-4 1-2-1 1-2 1-2-2 1-2-3 1-1
2-16 3-3 3-7 3-8 2-3 3-17

3-5 3-4

3-6 3-18 3-7

3-14 3-11 3-9 3-15 3-10

2-2 2-15 2-6 2-7 2-9 2-15 2-5 2-8 3-12 2-4

3-16 3-13 3-20 3-21

3-1 3-2 3-19
2-17 2-1 2-19 2-22 2-10 2-22 2-20 2-19 2-13 2-12 2-18

2-21 2-14

ADF Assembly Continued.
4-3-3 4-3-4 4-3-: Service Part *MEA-COVER PLATEN (JC-97-02024A) 4-3-1 4-3

4-6 4-4 4-7

4-4 4-5

8.4 OPE Unit Assembly

8.5 Scanner Assembly

1-3-1 1-3-2

1-3-4 1-3-3

1-5 1-4 1-5

2-15-4 2-15-3 2-15-7 2-15-6 2-15-5

2-9 2-5 2-3

? 2-15-8

2-10 2-11

2-15-1

2-8 2-13 2-12

2-6 2-7 2-16

2-15-2

2-4 2-1
8.6 Middle Cover Assembly
Transfer Roller Unit Fuser 38 61

65-4 65-1 65-2

8.7 Frame Assembly

47-1 45-2

ELA HOU-FRAME 21

27-2 27-3

8.8 Fuser Assembly

8.9 MP Assembly

6 5-1 5-19 5-3 9

8.10 Cassette Assembly

6-2 6-1

39-2 39-5

39-10 39-4 39-7 39-39-19

39-3 39-6

1-4 1-3
8.11 SCF(Option Cassette Frame) Exploded view
Service Parts List(Model:SCX-4720FN/XAZ)
Service(SA:service available, SNA:service not available) Drawer# 8.1-1-1 8.1-1-2 8.1-1-3 8.1-1-4 8.1-2 8.1-3 8.1-4 8.1-6 8.1-7 8.1-8 8.1-9 8.1-10 8.1-11 8.1-14 8.1-15 8.1-16 8.1-17 8.1-17-1 8.1-17-2 8.1-18 8.1-19 8.1-19-1 8.1-19-12 8.1-19-12 8.1-19-2 8.1-19-3 8.1-20 8.1-21 8.1-21-1 8.1-21-2 8.1-21-3 8.1-21-4 8.1-22 8.1-22-1 8.1-22-2 8.1-22-3 8.1-22-4 8.1-22-5 8.1-22-6 8.1-22-7 8.1-22-8 8.1-22-9 8.1-22-10 8.1-22-11 8.1-23 8.1-23-1 8.1-23-2 8.1-24 Description ELA HOU-ADF ELA HOU-OPE COVER-OPE FRONT ELA HOU-PLATEN FRAME-M-BASE R2 ELA UNIT-RX DRIVE UNIT-LSU HUMMINGBIRD2 SMPS-V1 PBA MAIN-CONTROLLER SHIELD-P-CONTROLLER_SEC CBF HARNESS-LSU MEA UNIT-SHIELD ENGINE BRACKET-P-INLET, ROCKY COVER SIDE-RIGHT ELA UNIT-MP_R2 CBF HARNESS-MOTOR MEA ETC-TR ROLLER-TRANSFER R2 GEAR-TRANSFER ELA HOU-COVER MIDDLE MEA-COVER MID FRONT COVER-MID FRONT SCREW-TAPTITE SCREW-TAPTITE CAP-SUB ACTUATOR PMO-M-SUB ACTUATOR MEA-CASSETTE ELA HOU-COVER SIDE L COVER SIDE-LEFT COVER-DIMM SPEAKER SCREW-TAPTITE MEA-COVER FRONT COVER-FRONT KNOB-M_LOCKER HOLDER-M_LOCKER TRAY-M-ASF_FOLDER ADJUST-M_MP L ADJUST-M_MP R TRAY-M-COVER_MP GEAR-PINION TRAY-CASE MP TRAY-M-LINK_MP SPRING ETC-CIS(C2) MEA-COVER REAR COVER-REAR COVER-FACE UPPER CBF HARNESS-ENGINE SEC_Code JC96-03169D JC96-04302M JC63-01229A JC96-03172E JC61-00906A JC96-03078A JC59-00018B JC44-00131A JC92-01731A JC63-00508A JC39-00395A JC97-01943A JC61-00693A JC63-01220A JC96-03132B JC39-00355A JC97-01917A JC66-00703A JC66-00395A JC96-03247C JC97-02043C JC63-01228A 6003-000269 6003-000269 JC67-00068D JC72-01339A JC97-02020D JC96-03185C JC63-01221A JC63-01222A 3001-001591 6003-000269 JC97-02019E JC63-01227A JC64-00154C JC61-00953D JC63-00447E JC70-00478D JC70-00479D JC63-00446A JG66-40003A JC63-00506C JC63-00444A JG61-70549A JC97-02018C JC63-01225A JC63-01226A JC39-00240C Service SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SNA SNA SA SA SA SA SA SNA SA SA SA SA SA SA SA SNA SA SA SA SA SA SA SA SA
Service(SA:service available, SNA:service not available) Drawer# 8.1-25 8.1-26 8.1-27 8.1-28 8.1-28-1 8.1-28-2 8.2-0 8.2-1 8.2-2 8.2-3 8.2-4 8.2-5 8.2-6 8.2-7 8.2-8 8.2-9 8.3-0 8.3-1 8.3-1-1 8.3-1-2 8.3-1-2-1 8.3-1-2-2 8.3-1-2-3 8.3-1-2-4 8.3-2 8.3-2-1 8.3-2-2 8.3-2-3 8.3-2-4 8.3-2-5 8.3-2-6 8.3-2-7 8.3-2-8 8.3-2-9 8.3-2-10 8.3-2-12 8.3-2-13 8.3-2-14 8.3-2-15 8.3-2-16 8.3-2-17 8.3-2-18 8.3-2-19 8.3-2-20 8.3-2-21 8.3-2-22 8.3-3 8.3-3-1 8.3-3-2 8.3-3-3 8.3-3-4 8.3-3-5 8.3-3-7 8.3-3-8 Description CBF HARNESS-LSU GND ELA HOU-FUSER LV R2 FAN-DC ELA HOU-EMBEDDED_MAC BRACKET-_M_NPC PBA SUB-NPC_PRT ELA UNIT-RX DRIVE BRACKET-P-GEAR MAIN GEAR-RDCN 53/26 GEAR-RDCN 113/33 GEAR-RDCN 57/18 WASHER-PLAIN BRACKET-P-MOTOR MAIN R2 GEAR-RDCN 103/41 GEAR-RDCN 90/31 MOTOR STEP-MAIN ELA HOU-ADF MEA-ADF UPPER COVER-ADF UPPER MEA-HOLDER PAD ADF RMO-ADF RUBBER HOLDER-M-PAD ADF SPRING ETC-PAD SHEET-ADF HOLDER ELA HOU-ADF LOWER COVER-ADF LOWER PBA SUB-ADF GROUND-P-ADF R2 SHAFT-M-FEED GEAR 38 ROLLER-DRIVE PMO-ACT EMPTY ADF PMO-ACTUATOR REGI SENSOR PMO-ACTUATOR SCAN SENSOR SPRING ETC-TORSION DOC (CC2-F) IPR-GROUND_ROLLER ROLLER-EXIT MEC-BRUSH ANTISTATIC PPR-WHITE BAR SHEET PMO-BUSH CBF HARNESS-ADF GEAR-AGITATOR-2 RING-C GUIDE-STACKER SUB CBF HARNESS-ADF ROLLER GND IPR-BRKT WHITE BAR SPRING ETC-WHITE BAR ELA HOU-ADF MOTOR BRACKET-P-GEAR ADF MOTOR STEP-ADF GEAR-CLUTCH 29 PMO-WHITE CLUTCH SUB 29 GEAR-CLUTCH 39 GEAR-IDLE 35 ADF GEAR-40/21 ADF SEC_Code JC39-00375A JC96-03210A JC31-00025A JC96-03586A JC61-00809A JC92-01700B JC96-03078A JC61-00891A JC66-00388A JC66-00706A JC66-00389A 6031-000023 JC61-00916A JC66-00390A JC66-00392A JC31-00037A JC96-03169D JC97-02022C JC63-01231A JC97-02137B JB73-00052A JC61-00893A JC61-00387A JC63-00373A JC96-03171C JC63-01230A JC92-01618A JC63-00372A JC66-00460A JC66-00560A JC72-01320A JC72-01010A JC72-01011A JB61-00076A JC70-10467A JC66-00559A JC75-00095A JC72-00752A JB72-00819A JC39-00351A JC66-00310A 6044-000159 JC61-00712A JC39-00187A JC70-00225A JC61-00548A JC96-03065A JC61-00892A JC31-00036A JB66-00101A JB72-00844A JC66-00322A JC66-00458A JC66-00456A Service SA SA SA SNA SNA SA SA SA SA SA SA SNA SA SA SA SA SA SA SA SA SA SA SA SNA SA SA SA SA SA SA SA SA SA SA SNA SA SA SA SA SA SNA SA SA SA SA SA SA SA SA SA SA SA SA SA

Service(SA:service available, SNA:service not available) Drawer# 8.3-3-9 8.3-3-10 8.3-3-11 8.3-3-12 8.3-3-13 8.3-3-14 8.3-3-15 8.3-3-16 8.3-3-17 8.3-3-18 8.3-3-19 8.3-3-21 8.3-4 8.3-4-1 8.3-4-2 8.3-4-3 8.3-4-3-1 8.3-4-3-2 8.3-4-3-4 8.3-4-3-5 8.3-4-4 8.3-4-5 8.3-4-6 8.3-4-7 8.3-4-9 8.3-5 8.3-5-1 8.3-5-2 8.3-5-3 8.3-6 8.3-6-1 8.3-6-2 8.4-0 8.4-1 8.4-2 8.4-3 8.4-4 8.4-5 8.4-6 8.4-7 8.4-8 8.4-9 8.4-10 8.4-11 8.4-12 8.4-13 8.4-14 8.4-15 8.4-16 8.4-17 8.4-18 8.4-20 8.4-21 8.5-0 Description GEAR-SWING 31/20 ADF LINK-M-SWING ADF GEAR-58/25 ADF IMPELLER-ADF GEAR-REMOVE ADF(XRX) WASHER-PLAIN IPR-WASHER WAVE WASHER-PLAIN CBF HARNESS-ADF GND RING-E SCREW-TAPTITE SPRING ETC-PAD MEA-COVER PLATEN COVER-PLATEN SHEET-WHITE SPONGE MEA-TX STACKER PMO-TX STACKER GUIDE-DOC_L GUIDE-DOC_R IPR-WASHER SPRING CU SPRING ETC-FEED PMO-ROLL PINCH ICT-SHAFT PINCH MEA UNIT-HINGE SHAFT-IDLE FEED MEA-COVER OPEN COVER-ADF OPEN PMO-GUIDE PAPER DAMPER-PICK UP ADF MEA UNIT-PICKUP DELL STOPPER-M-PICKUP ADF GEAR-ADF 38 ELA HOU-OPE COVER-OPE FRONT WINDOW-LCD KEY-COPY KEY-M-STOP KEY-SCROLL KEY-M_START KEY-M-TOLL SAVE KEY-RESOLUTION KEY-DIRECT PRINT KEY-SCAN TO RUBBER-COPY/SCROLL RUBBER-TELL/FAX_SEC PBA SUB-OPE_4720F RUBBER-ONE TOUCH KEY-M-TONER SAVE KEY-FAX KEY-SHIFT KEY-TEL LABEL-ONE TOUCH MPR-COVER ADRESS ELA HOU-PLATEN SEC_Code JC66-00457A JC66-00454A JC66-00455A JC66-00556A JC66-00557B 6031-000023 JB70-00070A 6031-000023 JC39-00363A 6044-000125 6003-000269 JC61-00387A JC97-02024C JC63-01233A JC63-00209A JC97-02817A JB72-01166D JC61-00834C JC61-00833C JF70-10616A JC61-00011A JG72-40663A JF70-40521B JC97-01707A JC66-00558A JC97-02023C JC63-01232A JB72-00843A JC66-00726A JC97-01962A JC61-00963A JB66-00103A JC96-04302M JC63-01229A JC64-00171G JC64-00054F JC64-00055A JC64-00056G JC64-00057E JC64-00061A JC64-00059E JC64-00155D JC64-00157D JC73-00189A JC73-00191A JC92-01625A JC73-00190A JC64-00058A JC64-00060F JC64-00156D JC64-00053G JC68-00651J JG74-10543A JC96-03172E Service SA SA SA SA SA SNA SA SNA SNA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SNA SA SA SA SA SA SA SA SA SNA SA SA SA SA SA SA SA SA SA SA SA SA SA SA

Service(SA:service available, SNA:service not available) Drawer# 8.5-1 8.5-1-1 8.5-1-2 8.5-1-3 8.5-1-3-1 8.5-1-3-2 8.5-1-3-3 8.5-1-3-4 8.5-1-4 8.5-2 8.5-2-1 8.5-2-2 8.5-2-3 8.5-2-4 8.5-2-5 8.5-2-6 8.5-2-7 8.5-2-8 8.5-2-9 8.5-2-10 8.5-2-11 8.5-2-12 8.5-2-13 8.5-2-14 8.5-2-15 8.5-2-15-1 8.5-2-15-2 8.5-2-15-3 8.5-2-15-4 8.5-2-15-5 8.5-16 8.6-0 8.6-1 8.6-2 8.6-3 8.6-4 8.6-5 8.6-6 8.7-0 8.7-1 8.7-2 8.7-3 8.7-4 8.7-5 8.7-6 8.7-7 8.7-8 8.7-9 8.7-10 8.7-11 8.7-12 8.7-13 8.7-14 8.7-15 Description MEA-SCAN UPPER COVER-SCAN UPPER GLASS-SCAN MEA-SCAN DUMMY COVER-M_SCAN DUMMY MCT-GLASS ADF TAPE-DOUBLE FACE LABEL(P)-SHADING IPR-HOLDER GLASS ELA HOU-SCAN LOWER COVER-SCAN LOWER ELA HOU-CCD MODULE CBF SIGNAL-CCD FFC ICT-INSERT SHAFT ICT-SHAFT CCD PMO-HOLDER BELT PMO-PULLEY ELA UNIT-CORE SPRING ETC-BELT BELT-TIMING GEAR PMO-LEVER SENSOR PHOTO-INTERRUPTER SPRING-CS HOLDER-M-CCD ELA HOU-SCAN MOTOR BRACKET-SCAN MOTOR R2 MOTOR STEP-SCAN GEAR-REDUCTION73/37 GEAR-IDLE GEAR-TIMING CBF HARNESS-PLATEN ELA HOU-COVER MIDDLE COVER-MIDDLE COVER-REAR UPPER PMO-STACKER RX BUSH-M-F/DOWN R2 CBF HARNESS-OPE PBA SUB-USB HOST ELA HOU-FRAME_110V FRAME-M-BASE R2 GUIDE-P-TR PLATE-E_SAW GUIDE-M-TR RIB PMO-GEAR_EXIT_DRV16 FOOT-BACK FOOT-FRONT GROUND-P-GUDIE TR R2 MEC-TERMINAL PLATE-P-TERMINAL CON R2 PLATE-P-TERMINAL CR R2 HOUSING-M-TERMINAL R2 PMO-LOCKER CST PMO-ACTUATOR CVR OPEN PMO-PLATE GUIDE DEVE_R SEC_Code JC97-02025D JC63-01235A JC01-00001A JC97-02026D JC63-00152F JC74-00021A 0203-001267 JB68-00644A JB70-00148A JC96-03173D JC63-01234A JC96-02759B JC39-00367A JB70-00154A JB70-00145A JB72-00764A JB72-00763A JB96-01381A JB61-00059A 6602-001067 JC72-00755A 0604-001095 6107-001167 JC61-00894A JC96-03069A JC61-00895A JB31-00011A JC66-00530A JB66-00083A JC66-00531A JC39-00362A JC96-03247C JC63-01224A JC63-01223A JC72-00973K JC61-00902A JC39-00350B JC92-01636A JC96-03186A JC61-00906A JC61-00607A JC61-00604B JC61-00594A JC72-00143A JC61-00835A JC61-00836A JC63-00397A JC75-00049A JC61-00903A JC61-00904A JC61-00911A JC72-00983A JC72-00974A JC72-00985A Service SA SA SA SNA SA SA SNA SA SA SA SA SA SA SNA SNA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SNA SA SA SNA SA SNA SNA SA SA SA SA
Service(SA:service available, SNA:service not available) Drawer# 8.7-16 8.7-17 8.7-18 8.7-19 8.7-20 8.7-21 8.7-22 8.7-23 8.7-24 8.7-25 8.7-26 8.7-27 8.7-27-1 8.7-27-2 8.7-27-3 8.7-28 8.7-29 8.7-30 8.7-31 8.7-32 8.7-33 8.7-34 8.7-36 8.7-37 8.7-38 8.7-39 8.7-40 8.7-41 8.7-42 8.7-43 8.7-44 8.7-45 8.7-45-1 8.7-45-2 8.7-45-3 8.7-46 8.7-46-1 8.7-46-2 8.7-47 8.7-47-1 8.7-47-2 8.7-47-3 8.7-47-4 8.7-49 8.7-50 8.7-51 8.7-52 8.7-53 8.7-54 8.7-55 8.7-56 8.7-58 8.7-59 8.7-61 Description SPRING ETC-GUIDE DEVE GROUND-P-PUSH BUSHING PMO-PLATE GUIDE DEVE_L PMO-ACT FEED R2 PMO-ACTUATOR EMPTY PMO-ACT MANUAL R2 GROUND-P-EARTH TR R2 GROUND-P-TERMINAL TR ROLLER-FEED ROLLER 1 PMO-BUSHING FEED SHAFT-FEED MEA UNIT-PICK UP SPONGE-ROLLER PICK_UP HOUSING-M-PICK UP_R2 HOUSING-M-PICK UP2_R2 IPR-P-EARTH TRANSFER HOLDER-M-PTL R2 LENS-PTL PMO-BUSHING_TR(L) SPRING ETC-TR L HAWK ROLLER-FEED BUSH-M-TR L SHAFT-FEED IDLE BUSH-M-FEED IDLE SPRING ETC-TR GROUND-P-DRIVE2 R2 SPRING-TS CAM-M-PICK_UP GROUND-P-DRIVE R2 SOLENOID-FEED ROCKY2 SOLENOID-HB (MANUAL) MEA UNIT-GEAR PICK UP GEAR-PICK UP B_R2 GEAR-PICK UP A_R2 SPRING-CS MEA UNIT-BRACKET FEED BRACKET-P-FEED R2 GEAR-35 IDLE MEA UNIT-CLUTCH GEAR-FEED 1 PMO-COLLAR_SPRING SPRING-TS PMO-HUB CLUTCH PLATE-P-PUSH BUSHING GEAR-FEED 2 GEAR-IDLE 23 SPRING-TS SPRING-TS IPR-P-TERMINAL DEVE KEY GROUND-P-TERMINAL DEVE PBA SUB-PTL HOLDER-M-TERMINAL R2 HOLDER-M-ACT MANUAL R2 HOLDER-BEARING EXIT F/DOWN SEC_Code JC61-70932A JC63-00401A JC72-00984A JC72-01323A JC72-00975A JC72-01324A JC63-00395A JC63-00403A JC66-00526A JC72-00382B JC66-00398A JC97-01926A JC72-01231A JC61-00909A JC61-00910A JC70-00307A JC61-00907A JC67-00027A JC72-00102A JC61-00047A JC66-00598A JC61-00588A JC66-00527A JC61-00585A JC61-70958A JC63-00398A 6107-001170 JC66-00377A JC63-00394A JC33-00014A JC33-00010A JC97-01929A JC66-00705A JC66-00704A 6107-001167 JC97-01925A JC61-00913A JC66-00690A JC97-01788A JC66-00393A JC72-00978A 6107-001170 JC72-00981A JC61-00914A JC66-00394A JC66-00396A 6107-001170 6107-001170 JC70-00340A JC63-00458A JC92-01620A JC61-00908A JC61-00912A JC61-00829A Service SA SNA SA SNA SA SA SNA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SA SNA SA SA SNA SA SA SA SA SA SA SA SA SNA SA SA SA SA SNA SNA SA SA SA SNA SNA SA SA SA SA SA