HP Color LaserJet Managed MFP E77822/E77825/E7783/E78323/E78325/E78330 Service Manual

Service Manual LaserJet Managed MFP E77822/E77825/E7783/E78323/E78325/E78330;
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your HP.
You can print, zoom or read any diagram, picture or page from this manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of HP Color LaserJet Managed photocopier.
To see what contain, please read table of contents:

1. PRODUCT SPECIFICATIONS AND DESCRIPTION
Printer views
Printer front view
Printer back view
Interface ports
Control-panel view
Inner finisher view
Stapler/stacker finisher view
Booklet finisher view
Specifications
Technical specifications
Supported operating systems
Mobile printing solutions
Printer dimensions
Power consumption, electrical specifications, and acoustic emissions
Operating-environment range
General specifications
Print specifications
Scan specifications
Copy specifications
Paper handling specifications
Supplies
Maintenance parts
Optional
Feeding system
Feeding system overview
Main components and functions
Cassette
Pickup Assembly
Registration assembly
Tray 1 (MP) feed assembly
Image creation
Printing process overview
Imaging unit
Fuser unit
Fuser unit overview
Fuser unit drive
Fuser unit temperature control
Loop control
Laser scanner unit
Laser scanner assembly overview
Laser scanning optical path
Laser synchronizing detectors
Automatic CPR adjustment
Drive system
Drive motors
Main drive unit (OPC/DEVE/ITB/Transfer Roller/Disengage/Engage motors)
Pickup Drive
Registration (Regi)/Tray 1 drive
Feed drive
Fuser/Exit Drive
Toner collection unit drive
Toner supply drive
Flatbed Scanner System
Flatbed scanner system overview
Scanning system components
Caution for moving the scanner
Document feeder LX (dn models)
Document feeder LX overview
Document feeder LX electrical parts
Document feeder LX registration
Document feeder LX drive system
Document feeder LX scanning position
Document feeder LX specifications
Flow document feeder z models (GX)
Flow document feeder overview
Flow document feeder sensors
Flow document feeder ultra sonic multi-feed (USM) sensor
Flow document feeder drive system
Flow document feeder specifications
Flow document feeder registration
Flow document feeder scanning position
Flow document feeder mixed size original (MSO) sensor
Flow document feeder dual sensor cleaning method
Flow ADF z bundles (GX)
Hardware configuration
Main controller
Formatter
Low voltage power supply (LVPS; Type 5H) / switching mode power supply (SMPS)
Low voltage power supply (LVPS) PCA (Type 4) (GX/z models)
Fuser drive board (FDB)
High-voltage power supply (HVPS) PCA
Eraser PCA
Waste Sensor PCA
CRUM PCA
Toner CRUM joint PCA
Paper Size sensor PCA
Dual cassette feeder (DCF)
Inner finisher

2. PARTS, DIAGRAMS, REMOVAL AND REPLACEMENT
HP service and support
How to search for printer documentation
Order parts by authorized service providers
Ordering
Orderable parts
How to use parts lists and diagrams
ESD precautions
Service approach
Precautions when replacing parts
Before performing service
After performing service
Post-service test
Maintenance (printer cleaning)
Cleaning the document feeder white bar and CIS (LX)
Cleaning the flow flow document feeder white bar and CIS (GX)
Cleaning the scanner glass
Cleaning the transfer roller
Cleaning the color toner density (CTD) sensor
Main parts
Main assembly
Removal and replacement: ADF white backing (LX)
Removal and replacement: ADF white backing (GX)
Removal and replacement: ADF whole unit (LX)
Removal and replacement: Flow ADF whole unit (GX)
Removal and replacement: Image scanner assembly (flatbed) (flatbed)
Removal and replacement: Exit unit
Removal and replacement: Fuser unit
Removal and replacement: Right door assembly
Removal and replacement: Image transfer belt (ITB) assembly
Removal and replacement: Fuser drive assembly board
Removal and replacement: Scanner LVPS (Type 5) board
Removal and replacement: LVPS fan
Removal and replacement: Formatter and formatter cage
Removal and replacement: Removal and replacement: 500 GB FIPS HDD/500 GB formatter HDD 207
Removal and replacement: HP Foreign interface harness (FIH) solution
Removal and replacement: NFC Kit installation
Removal and replacement: Main board
Removal and replacement: Developer unit
Removal and replacement: Imaging drum
Removal and replacement: Front cover open switch
Removal and replacement: Right door open switch
Removal and replacement: 500 GB Main PCA HDD
Removal and replacement: Control panel
Removal and replacement: Keyboard
Exit assemblies
Exit assembly
Cassettes tray 2/3
Cassettes Tray 2/3
Main drive assembly
Main drive
Fuser output drive
Fuser output drive
Main frame assembly
Main engine frame
Removal and replacement: Main drive unit
Removal and replacement: Fuser/exit drive assembly
Removal and replacement: Feed drive assembly
Removal and replacement: Toner collection unit drive
Removal and replacement: Toner supply drive assembly
Removal and replacement: Toner collection full sensor
Removal and replacement: Toner duct assembly
Removal and replacement: Fuser-duct fan
Removal and replacement: Pickup drive units
Removal and replacement: Feed sensor 1
Removal and replacement: Feed sensor 2
Removal and replacement: Automatic color registration (ACR)
Removal and replacement: Fuser out sensor
Removal and replacement: Duplex sensor and loop sensor
Tray 1 registration drive
Tray 1 registration drive
Registration sub-frame
Registration sub-frame
Removal and replacement: Registration drive assembly
Removal and replacement: Registration assembly
Main frame pickup
Main frame pickup
Removal and replacement: Trays 2-x main rollers
Removal and replacement: Paper pickup assemblies and empty/level sensor
Main frame pickup upper
Main frame pickup upper
Main frame
Main frame
Removal and replacement: ACR shutter motor
Removal and replacement: High-voltage power supply (HVPS) board
Removal and replacement: Laser scanner assembly
Removal and replacement: Right door dampener and lever kit
Removal and replacement: High-voltage rail assembly
Removal and replacement: TCU presence photo sensor
Removal and replacement: Paper size sensor PCA
Covers
Covers
Removal and replacement: Rear covers
Removal and replacement: Left cover
Right door
Right door
Tray 1
Tray 1 rollers
Removal and replacement: Tray 1 rollers
Removal and replacement: Tray 1 unit and Tray 1 assemblies
Right door output
Right door output
Right door feed guide
Right door feed guide
Removal and replacement: HP LaserJet Transfer Roller (T2)
ADF (LX models)
ADF (LX models)
Removal and replacement: Removal and replacement: Document feeder (ADF) jam access cover (LX)
Removal and replacement: Removal and replacement: Document feeder (ADF) input tray (LX)
Removal and replacement: Removal and replacement: Contact Image Sensor (CIS) assembly
Removal and replacement: Removal and replacement: Document feeder (ADF) main motor (LX)
ADF exterior and ADF pickup (LX models)
ADF exterior and ADF pickup (LX)
Removal and replacement: Removal and replacement: Document feeder (ADF) PCA (LX)
Removal and replacement: Removal and replacement: Document feeder (ADF) pick/feed roller assembly (LX)
ADF main frame assembly (LX models)
ADF main frame assembly (LX/du models)
Removal and replacement: Removal and replacement: Document feeder (ADF) separation roller assembly (LX)
Removal and replacement: Removal and replacement: Document feeder (ADF) feed motor (LX)
Flow ADF (GX/z)
ADF (GX/z)
Removal and replacement: Document feeder input tray (GX)
Removal and replacement: Contact Image Sensor (CIS) assembly
Flow ADF open cover (GX/sGX)
Flow ADF open cover (GX/z)
Removal and replacement: Document feeder jam access cover (GX)
ADF upper pickup (GX/z)
ADF upper pickup (GX/z)
Removal and replacement: Flow document feeder pick roller assembly (GX)
Removal and replacement: ADF separation roller assembly (GX)
Flow ADF stacker (GX/z)
Flow ADF stacker (GX/sGX)
Flow ADF main frame (GX/z)
ADF main frame (GX/z)
Removal and replacement: Removal and replacement: Document feeder front motor (GX)
Removal and replacement: Document feeder rear motors (GX)
Removal and replacement: Document feeder PCA fan (GX)
Removal and replacement: Document feeder contact image sensor (CIS) fan (GX)
Removal and replacement: Flow ADF ultrasonic sensor with PCA (GX)
Removal and replacement: PCA-ADF HIC (GX)
Image scanner
Image scanner
Image scanner assembly
Image scanner assembly
Removal and replacement: Scan glass
HP LaserJet Managed MFP E72525-E72535, E77822-E77830 – Removal and replacement: Scanner LED lamp module
Image scanner, lower (LX)
Image scanner, lower (LX)
Removal and replacement: Scanner assembly – CCD and lens
Removal and replacement: Scanner APS sensor
Second Exit (Optional)
Remove the second eixt (Optional)
Remove the return gate solenoid (Optional)
Dual cassette feeder (DCF)
DCF main
DCF main frame pickup 1
DCF main frame pickup
DCF main frame pickup,upper
High-capacity input (HCI) tray (workgroup)
HCI main
HCI sub – frame
HCI sub – pickup upper/lower
HCI drive
HCI sub – cassette

3. PROBLEM SOLVING
Control panel messages document (CPMD)
Error codes
How to search for printer documentation
Troubleshooting process
Determine the problem source
Tools for troubleshooting
Problem-solving checklist
Print menu map
Print current settings pages
Print event log
Pre-boot menu options
Control panel menus
Clear paper jams
Paper jam locations
13.A1 tray 1 paper jam
13.A2, 13.A3 tray 2, tray 3 paper jam
Clear paper jams in the Bottom HCI
Service mode (tech mode)
Entering service mode
Service mode menu tree
Information
Maintenance counts
Diagnostics
Service functions
Print quality troubleshooting guide
Image quality problems and solutions
Adjusting the Adjusting the laser scanner assembly skew error
Adjusting the flow flow ADF/ADF skew
Adjust Scan skew error

4. ELECTRICAL-MECHANICAL DIAGRAMS
PCAs, Boards, and Laser Scanning Unit (LSU)
Exit section
Drive section
Paper handling section
Frame section
Fuser section
Right door section
Scanner section
Document feeder section
Image formation section
Optional dual-cassette feeder (DCF)
Optional high-capacity input (HCI)

5. STAPLER/STACKER AND BOOKLET MAKER (SSBM)
Product specification and description
Stapler/stacker finisher and booklet finisher view
Specification
Stapler/stacker finisher and booklet finisher system
Service approach
Precautions when replacing parts
Before performing service
ESD precautions
After performing service
Post-service test
Order parts by authorized service providers
Parts, diagrams, removal and replacement (stapler/ stacker and booklet finishers) finishers)
Parts, diagrams (stapler/stacker)
Parts, diagrams (Booklet finisher) finisher)
Bridge unit
Covers
Entrance unit
Punch unit
Tray diverter unit
Top exit unit
Top output tray unit
Main exit unit
Paddle unit
End fence unit
Tamper unit
Stapler unit
Ejector unit
Main output tray unit
Paper holding unit
Buffer unit
Booklet maker
Booklet entrance unit
Booklet paddle unit
Booklet end fence unit
Booklet presser unit
Booklet tamper unit
Booklet stapler unit
Booklet fold unit
Booklet diverter unit
Booklet exit unit
Booklet output tray unit
PCA
Problem solving
Control panel message document (CPMD)
Clear paper jams
Finisher system diagram

6. INNER FINISHER
Product specification specification specification and description
Inner finisher view
Specification Specification Specification
Inner finisher system
Service approach
Precautions when replacing parts
Before performing service
ESD precautions
After performing service
Post-service test
Order parts by authorized service providers
Parts, diagrams, removal and replacement (inner finisher) finisher)
Parts and diagrams (inner finisher) finisher)
Covers
Entrance unit
Exit unit
Paper support unit
Paddle unit
Tamper unit
Stapler unit
Ejector unit
End fence unit
Output tray unit
Paper holding unit
Punch unit
Problem solving
Control panel message document (CPMD)
Electrical Mechanical Diagrams (Inner finisher) finisher)
Punch waste full sensor
Punch waste box sensor and finisher docking sensor
Entrance motor
Exit sensor
Exit motor, main paddle motor & home sensor, output tray lower limit switch, and paper holding solenoid
Paper support motor & home sensor
Front tamper motor and home sensor
Rear tamper motor and home sensor
End fence sensor
Stapler position motor and sensor
Ejector 1 motor and home sensor, ejector 2 motor, motor sensor, and home sensor
Output tray motor and sensor
Output tray top of stack sensor
Top cover switch
Front cover switch

7. DIAGRAMS
Diagrams (connection)
Diagrams (FUSER EXIT)
Diagrams (PICKUP/PH DRIVE/SIDE)
Diagrams (laser scanner assembly/HVPS)
Diagrams (toner)
Diagrams (FDB/LVPS)
Diagrams (UI)
Diagrams (FRONT/OPC)
Diagrams (scanner)
Diagrams (Dual Cassette Feeder)

Appendix A Certificate Certificate Certificate of Volatility
Certificate Certificate Certificate of Volatility (For 77822, 77825, 77830)
Certificate Certificate Certificate of Volatility (for E783xxdn)
Certificate Certificate Certificate of Volatility (for E783xxz)

Appendix B Service parts changes For Environmental Protection Agency 3.0 Compliant Products
Glossary of terms
Index

HP Color LaserJet LJ MFP Managed E77822 E77825 E7783 E78323 E78325 E78330