HP Color E77422 E77428 Laser Printer Diagrams Diagrams
Updated: Jan 24, 2020
Printer Part Diagrams HP Laser E77422 E77428
Laser Printer Parts > Printer Parts Diagrams > HP E77422 E77428
Fits the following HP Managed MFP laser printer models:
HP Color LaserJet Managed MFP E77422dn
HP Color LaserJet Managed MFP E77428dn
HP Color LaserJet Managed MFP E77422a
HP Color LaserJet Managed MFP E77422dv
HP E77422 E77428 Printer Parts Diagram Index
HP E77422 E77428 Accessory List printer parts diagram
HP E77422 E77428 Main assembly printer parts diagram
HP E77422 E77428 1st exit assembly printer parts diagram
HP E77422 E77428 Main assembly 2 printer parts diagram
HP E77422 E77428 Main engine frame 1 of 2 printer parts diagram
HP E77422 E77428 Main engine frame 2 of 2 printer parts diagram
HP E77422 E77428 Registration & MP tray assembly printer parts diagram
HP E77422 E77428 Main drive assembly printer parts diagram
HP E77422 E77428 Main engine frame 2 of 2 assembly printer parts diagram
HP E77422 E77428 Registration assembly printer parts diagram
HP E77422 E77428 Main frame paper pickup assembly printer parts diagram
HP E77422 E77428 Main frame pickup upper printer parts diagram
HP E77422 E77428 Main frame parts assembly printer parts diagram
HP E77422 E77428 Front frame parts printer parts diagram
HP E77422 E77428 Rear frame parts printer parts diagram
HP E77422 E77428 Color plane registration CPR printer parts diagram
HP E77422 E77428 Frame main middle plate LSU printer parts diagram
HP E77422 E77428 Cover panels, doors printer parts diagram
HP E77422 E77428 Cover panels, doors cont printer parts diagram
HP E77422 E77428 Control panel 4.3 printer parts diagram
HP E77422 E77428 Control panel assembly printer parts diagram
HP E77422 E77428 MP right door printer parts diagram
HP E77422 E77428 MP Multi purpose printer parts diagram
HP E77422 E77428 Right door output printer parts diagram
HP E77422 E77428 Right door feed guide printer parts diagram
HP E77422 E77428 Scanner assembly printer parts diagram
HP E77422 E77428 Scanner lower assembly printer parts diagram
HP E77422 E77428 ADF upper assembly printer parts diagram
HP E77422 E77428 ADF Automatic document feeder printer parts diagram
HP E77422 E77428 Document lid assembly printer parts diagram
1. HP E77422 E77428 Accessory List printer parts diagram
2. HP E77422 E77428 Main assembly printer parts diagram
Ref Description Part Number (*) Qty
1 Main PCA shield JC93-01389A (*) 1
2 Main board PCA (ECB) kit 3BE77-67001 (*) 1
2-1 Main board PCA (ECB) JC92-03028A (*) 1
2-2 Heatsink for ECB JC98-02098A (*) 1
3 Formatter PCA shield JC93-01538A (*) 1
4 Formatter PCA JC92-03036A (*) 1
5 STMS PCA (SDS) JC92-02976A (*) 1
6 eMMC card JC98-05747A(*) 1
7 Fan-type 8 LVPS JC31-00162A (*) 1
8 1st exit assembly JC90-01118B (*) 1
9 Fuser, 220V JC82-00485A (*) 1
9 Fuser, 110V JC82-00472A (*) 1
10 ITB cleaner JC96-06246A (*) 1
11 Image transfer belt (ITB) assembly JC98-00980D (*) 1
12 MP right door JC95-02241A (*) 1
13 Fuser drive board (FDB), 220V JC44-00211E (*) 1
13 Fuser drive board (FDB), 110V JC44-00210E (*) 1
14 LVPS (SMPS), type 5H, 110V JC44-00249A (*) 1
14 LVPS (SMPS), type 5H, 220V JC44-00250A (*) 1
Not shown Memory PCA (IOD) X3A92-60002 (*) 1
Not shown Harness, engine side for DCF JC39-02112A (*) 1
Not shown Harness, finisher JC39-02072A (*) 1
Not shown Harness, heater JC39-01583A (*) 1
Not shown Harness, FDB interface JC39-02564A (*) 1
3. HP E77422 E77428 1st exit assembly printer parts diagram
0 Exit assembly JC90-01118B (*) 1
1 Photo interrupter 0604-001393 (*) 1
2 Gear, exit JC66-02163A (*) 1
3 Spring, ts JC61-07185A (*) 1
4 Actuator, Exit Bin Full JC66-04339A (*) 1
5 Actuator, Full Exit JC66-02218A (*) 1
6 Actuator, Full Exit JC66-02278A (*) 1
7-1 Roller, face down exit JC66-03183A (*) 1
7-2 Upper exit guide JC61-04799A (*) 1
8 Lower exit guide JC90-01133A (*) 1
Not shown Harness, exit color JC39-02075A (*) 1
JC90-01118B 1st Exit assembly
4. HP E77422 E77428 Main assembly 2 printer parts diagram
1 Laser scanner unit and HVPS interface cable JC39-02114A (*) 1
2 HVPS JC44-00212C (*) 1
3 Laser scanner unit (LSU) JC97-04010A (*) 1
4 Cassette Tray 2 JC90-01773A (*) 1
5 Cassette Tray 3 JC90-01774A (*) 1
6 Toner Collection Unit (TCU) X3A83-67923 (*) 1
7 Imaging drum CMYK X3A83-67905 (*) 4
8 Developer unit, Y JC96-11663A (*) 1
8 Developer unit, M JC96-11664A (*) 1
8 Developer unit, C JC96-11665A (*) 1
8 Developer unit, K JC96-11666A (*) 1
5. HP E77422 E77428 Main engine frame 1 of 2 printer parts diagram
1 Fuser & Exit drive assembly JC93-00441A (*) 1
2 Pickup drive assembly JC93-00442C (*) 2
2-1 Pickup drive motor JC93-00452A (*) 1
3 Registration & MP Tray drive assembly JC93-00443A (*) 1
4 Feed drive assembly JC93-00444A (*) 1
4-1 Feed drive motor JC31-00033B (*) 1
5 Toner supply drive assembly JC93-00446B (*) 4
6 Main drive JC93-00915B (*) 1
7 Fan, type 7 fuser JC31-00161A (*) 1
8 TCU drive assembly JC93-00445A (*) 1
8-1 TCU drive motor JC31-00166A (*) 1
9 Fan assembly JC93-01400A (*) 1
9-1 Fan, type7 developer JC31-00130A (*) 1
6. HP E77422 E77428 Main engine frame 2 of 2 printer parts diagram
0 Fuser & Exit drive assembly JC93-00441A (*) 1
1 Gear, rdcn exit JC66-03108A (*) 1
2 Gear, fuser one way JC66-03105A (*) 1
3 Gear, hub clutch JC66-00340A (*) 2
4 Gear, rdcn fuser out JC66-00417A (*) 2
5 Gear, fuser release JC66-03107A (*) 1
6 Fuser Motor, BLDC JC31-00123B (*) 1
7 Exit motor, Step JC93-00452A (*) 1
7. HP E77422 E77428 Registration & MP tray assembly printer parts diagram
0 Registration drive JC93-00443A (*) 1
1 Motor, BLDC JC31-00123B (*) 1
2 Electric clutch JC47-00037A (*) 2
8. HP E77422 E77428 Main drive assembly printer parts diagram
0 Main drive JC93-00915B (*) 1
1 Motor, bldc JC31-00123A (*) 5
2 ITB Engage/Disengage drive assembly JC93-00452A (*) 1
3 Photo interrupter 0604-001393 (*) 4
4 OPC sensor holder JC61-04538A (*) 4
5 Main sub drive JC93-00914B (*) 1
9. HP E77422 E77428 Main engine frame 2 of 2 assembly printer parts diagram
1 Registration stopper JC61-04900A (*) 1
2 Feeding Duct Shaft JC66-03164A (*) 4
3 Registration Cleaner JC93-00078C (*) 1
4 Toner Supply Duct JC93-00483B (*) 4
5 Registration assembly JC93-01371A (*) 1
6 Main frame first pickup JC93-00511A (*) 1
7 Main frame second pickup JC93-01441A (*) 1
8 Main feed first color JC93-00536A (*) 1
9 Main feed second JC93-00537D (*) 1
10 Main switch JC39-01582A 1
10. HP E77422 E77428 Registration assembly printer parts diagram
0 Registration assembly JC93-01371A (*) 1
1 Photo interrupter 0604-001381 (*) 1
11. HP E77422 E77428 Main frame paper pickup assembly printer parts diagram
0 Main frame pickup JC93-00510A (*) 1
1 Pick, reverse and feed roller Tray 2-5 JC93-00540A (*) 3
2-1 Coupler, torque limiter JC67-00455A (*) 1
2-2 Fixer, E-ring 4pi JC61-01367A (*) 1
12. HP E77422 E77428 Main frame paper pickupupper assembly printer parts diagram
1 Actuator, empty pickup JC66-03199A (*) 1
2 Clutch one way JC66-00977A (*) 1
3 Gear-m, joint JC66-00943A (*) 1
4 Gear-m, one way JC66-00941A (*) 1
5 Gear-m, idle JC66-00940A (*) 1
6 Holder-m, idle one way JC61-01288A (*) 1
7 Photo interrupter 0604-001393 (*) 4
13. HP E77422 E77428 Main frame parts assembly printer parts diagram
1 Front frame parts JC93-01397A 1
2 Rear frame parts JC93-01644A 1
3 Automatic Color Registration (ACR) JC93-00895A 1
4 Frame main middle plate LSU JC93-00859A 1
5 Base bottom frame JC93-00926A 1
6 Right cassette rail JC93-00478A 2
7 Left cassette rail JC93-00477A 2
8 HVPS shield JC95-02243A 1
9 Top plate JC61-06621A 1
10 Toner guide frame JC93-00618A (*) 4
11 ITB cleaner guide JC61-04774A 1
12 Idle gear feeding duct JC66-03166A 4
13 Link feeding duct JC66-03164A 4
14 LSU plate JC61-04775A 1
15 Rear frame support JC93-01399A 1
16 Photo interrupter 0604-001393 (*) 1
17 Right cassette rail cover JC63-03416A 2
18 LSU align shaft JC66-03231A 1
19 Idle feed roller JC66-03203A 2
20 Gear clutch JC93-01186A 2
21 Scan right frame JC93-01648A 1
22 OPC developer guide JC61-04785A 4
23 Swing lever frame JC93-00485A 4
24 Developer swing handle JC64-00708B 4
25 Pin, parallel 6043-001115 4
26 Developer swing link JC66-03229A 4
27 Exit top plate JC61-04773A 1
28 Fuser support JC93-00481B 1
14. HP E77422 E77428 Front frame parts printer parts diagram
1 ACR shutter drive assembly JC93-00894A (*) 1
1-1 Motor DC JC31-00078A (*) 1
1-2 ACR shutter sensor 0604-001393 1
2 Front Door Switch assembly JC93-00466A (*) 1
3 Main TCU sensor JC93-00492A (*) 1
4 Imstallation TCU sensor 0604-001393 (*) 1
5 Right lower frame JC93-01418A 1
5-1 Damper hinge JC66-01425A (*) 1
15. HP E77422 E77428 Rear frame parts printer parts diagram
1 Rear frame JC93-01396A 1
2 Autosize sensor JC93-00018B (*) 2
3 Rear frame, HV package JC93-00489A 1
4 Ground plate JC61-03002A 2
5 Right door switch assembly JC93-01467A (*) 1
16. HP E77422 E77428 Color plane registration CPR printer parts diagram
0 Color plane registration (CPR) assembly JC93-00895A (*) 1
1 CTD sensor JC32-00014A (*) 3
2 Harness, ID Sensor JC39-02077A (*) 1
17. HP E77422 E77428 Frame main middle plate LSU printer parts diagram
1 Photo interrupter 0604-001381 (*) 1
2 Feed sensor holder JC61-04857A 1
Not shown Harness, feed and registration sensor JC39-02113A (*) 1
18. HP E77422 E77428 Cover panels, doors printer parts diagram
1 Cover, front JC95-02234A (*) 1
1-1 Front cover strap JC61-04626A (*)1
1-2 HP badge logo JC64-01027A (*)1
1-3 LSU cleaner lever JC66-02258A (*)1
2 Cover, inner color JC95-02235A (*)1
3 Cover, middle right assembly JC95-02082A (*)1
3-1 PCA switch JC92-02969A (*)1
3-2 Power key JC64-01034A (*) 1
19. HP E77422 E77428 Cover panels, doors cont printer parts diagram
20. HP E77422 E77428 Control panel 4.3 printer parts diagram
1 Control panel (CP) assembly (4.3 inch, a/dv Y3Z60-60108 (*) 1
2 Cover, control panel upper (4.3 inch model) JC95-02232A (*) 1
2-1 Cover only, control panel upper (4.3 inch JC63-06055A (*)
2-2 Sheet, scan cleaning JC63-03495B 1
3 Cover, control panel lower (4.3 inch model) JC63-06056A (*) 1
4 OPE holder JC61-08591A 1
5 Cover, HIP JC63-05670A(*) 1
6 PCA - USB host JC92-02951A (*) 1
7 Humidity encoder/sensor JC32-00015A (*) 1
8 USB cap JC67-00867A(*) 1
Not shown CP interface cable bundle to formatter JC39-02554A (*) 1
Not shown Harness CP side band for 4.3 inch JC39-02705A (*) 1
Not shown Harness CP GND JC39-02729A (*) 1
21. HP E77422 E77428 Control panel assembly printer parts diagram
1 Control panel (CP) assembly (dn B5L47-60101 (*) 1
2 Cover, control panel upper JC95-02086A (*) 1
2-1 Cover only, control panel upper JC63-05647A (*) 1
2-2 Sheet, scan cleaning JC63-03495B 1
3 Cover, control panel lower JC95-02083A (*) 1
3-1 PCA - USB host JC92-02951A (*) 1
3-2 Cover only, control panel lower JC63-05648A (*) 1
4 Cover, CP dummy JC63-05675A (*) 1
5 Cover, HIP JC63-05670A(*) 1
6 USB cap JC67-00867A(*) 1
7 Humidity encoder/sensor JC32-00015A (*) 1
Not shown CP interface cable bundle to formatter JC39-02554A (*) 1
Not shown Harness CP side band JC39-02557A (*) 1
Not shown Harness CP GND JC39-02729A (*) 1
22. HP E77422 E77428 MP right door printer parts diagram
1 Side cover, exit JC95-02160A 1
2 Bar code label JF68-10532B 1
3 Screw 6003-000196 40
4 Screw 6003-000282 2
5 Screw 6006-001193 3
6 Screw 6009-001665 10
7 E-ring 6044-000125 4
8 E-ring 6044-000231 1
9 Spring, cs 6107-001731 2
10 Spring, ts 6107-003052 (*) 1
11 Spring, es 6107-003056 1
12 Belt gear 6602-003299 1
13 Fan, Fuser type 6 JC31-00160C (*) 2
14 Wire harness JC39-02704A 1
15 Duplex guide stopper JC61-03115A 1
16 Bush JC61-03527A 4
17 Link support bracket JC61-04684A 1
18 Upper duplex guide JC61-04795A (*) 1
19 Gate stopper JC61-04899A 2
20 MP front cover JC63-03356C (*) 1
21 Side cover, middle JC63-03377A 1
22 Harness cover JC63-03378C 1
23 Side cover JC63-04570B (*) 1
24 Side cover, upper JC63-04573B (*) 1
25 Harness lower cover JC63-04574B 1
26 Sponge JC63-05075A 2
27 Side locker JC64-00710A 1
28 Rear side locker JC64-00711A (*) 1
29 Side handle JC64-00948B 1
30 Side link JC66-03220B 1
31 Link, front JC66-03235A (*) 1
32 Handle shaft JC66-03301A 1
33 Tray 1 (MP) parts JC90-01777A 1
34 Side cover, exit JC95-01509C 1
35 Side cover, duplex motor JC95-01510A (*) 1
36 Side cover, duplex feed JC95-01517A (*) 1
37 Link rear JC95-01518A (*) 1
38 T2 Transfer roller assembly JC95-01942A (*) 1
39 Side cover, feed JC95-02081A (*) 1
40 Side cover, rear roller JC95-02126A 1
41 Side cover, rear roller JC95-02127A 1
42 Side cover, rear JC95-02128A 1
43 Side cover, right JC95-02129A 1
44 Side cover, guide JC95-02130A (*) 1
23. HP E77422 E77428 MP Multi purpose printer parts diagram
1 Tray 1 door JC90-01778A (*) 1
2-1 Photo interrupter 0604-001393 (*) 1
2-2 Coupler, torque limiter JC67-00455A (*) 1
3 MP pickup bracket assembly JC90-01125B (*) 1
3-1 Solenoid Tray 1 JC33-00029B (*) 1
3-2 One way clutch JC90-00918A (*) 1
3-3 Clutch, one way assembly JC66-00977A (*) 1
3-4 Holder, idel one way JC61-01288A 1
4 Pick, reverse and feed roller Tray 1 JC93-00540B (*) 3
24. HP E77422 E77428 Right door output printer parts diagram
0 Right door output JC95-01509C (*) 1
1 Photo interrupter 0604-001393 (*) 1
2 Actuator, fuser out JC66-03307A (*) 1
3 Spring, ts 6107-001737 (*) 1
4 Guide, gate JC61-04792A (*) 1
25. HP E77422 E77428 Right door feed guide printer parts diagram
0 Right door feed guide JC95-02081A (*) 1
1 Spring, cs 6107-001731 (*) 2
2 Roller shaft JC66-02354A (*) 1
3 Idle roller JC66-02289B (*) 2
4 Spring, cs 6107-003048 (*) 2
5 Acutuator, duplex2 JC66-02180A (*) 1
6 Spring, ts 6107-001731 (*) 1
7 Photo interrupter 0604-001393 (*) 3
8 Transfer roller assembly JC95-01942A (*) 1
8-1 Transfer roller JC66-04204A (*) 1
8-2 Bearing ball 6601-001389 (*) 2
26. HP E77422 E77428 Scanner assembly printer parts diagram
0 Scanner assembly JC97-05115A (*) 1
1 Scanner glass, large JC97-05126A (*) 1
2 ADF tempered glass, small JC01-00101A (*) 1
3 PCA, scanner joint JC92-02781A (*) 1
4 Belt pulley JC66-02257A 1
5 Motor, scanner JC31-00158A (*) 1
6 Hinge, scanner left JC97-04736A (*) 1
7 Hinge, scanner right JC97-04737A (*) 1
8 Scanner open sensor JC97-04516A (*) 1
9 FR carriage assembly JC97-04510A (*) 1
9-1 Lamp, scanner JC97-04521A (*) 1
Not shown Auto adjustment chart A3 Ver1.0 JC81-09891A (*) 1
27. HP E77422 E77428 Scanner lower assembly printer parts diagram
1 Scanner APS sensor JC97-04507A 1
1-1 Sensor, photo interrupter 0604-001453 (*) 2
2 Lens, scanner JC97-04523B (*) 1
3 Scanner, HR carriage JC97-04514A 1
4 Scanner, FFC JC39-02119A 1
28. HP E77422 E77428 ADF upper assembly printer parts diagram
0 Automatic document feeder kit JC97-04942B (*) 1
a Sponge RADF JC63-05343A (*) 1
1 Cover, ADF open JC97-04789A 1
1-1 Actuator, registration JC66-03148A 1
1-2 Actuator, detect paper JC66-03147A 1
1-3 Pickup assembly, ADF JC97-04009A(*) 1
1-4 Guide, paper stop JC61-04647A 1
2 ADF stacker JC97-05029A(*) 1
2-1 ADF paper length and width sensors 0604-001393(*) 5
2-2 Actuator, paper length JC66-03209D 2
3 Cover, ADF side front JC63-05426A(*) 1
4 Cover, ADF side rear JC63-05427A(*) 1
5 Hinge, ADF right JC97-04555B(*) 1
6 Hinge, ADF left JC97-04757B(*) 1
7 PCA, ADF JC92-03002B(*) 1
8 Sponge RADF JC63-05343A(*) 1
9 Harness RADF JC39-02451A(*) 1
29. HP E77422 E77428 ADF Automatic document feeder printer parts diagram
1 ADF friction pad JC97-04733A (*) 1
2 Belt, ADF timing gear 6602-003186 1
3 Clutch, ADF JC47-00033G 1
4 ADF exit, feeder registration, cover, 0604-001393 (*) 4
5 Motor, ADF assembly JC97-03993A (*) 1
5-1 Solenoid, pickup assembly JC33-00007A 1
5-2 Motor, bldc JC31-00156C (*) 1
30. HP E77422 E77428 Document lid assembly printer parts diagram
0 Document lid cover kit 3BE77-67003 1
a Document lid cover JC97-05065A 1
b Sponge document lid JC63-06114A (*) 1
1 Screw 6003-000196 3
2 Screw 6003-001256 4
3 Magnet switch JC61-06349A (*) 1
4 Hinge holder JC61-08587A (*) 2
5 Flatbed cover, top JC63-06047A (*) 1
6 Open handle JC64-01061A (*) 1
7 Flatbed damper JC69-01663A (*) 2
8 Hinge JC97-04309C (*) 2
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