HP Color LaserJet Enterprise M855dn, Enterprise M855xh, Enterprise M855x+ / HP Color LaserJet Enterprise Flow MFP M880z, M880z+ Full: Repair, Troubleshooting & Parts List Manual

Full: Repair, Troubleshooting & Parts List Manual HP Color LaserJet Enterprise M855dn, Enterprise M855xh, Enterprise M855x+ / HP Color LaserJet Enterprise Flow MFP M880z, M880z+;
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your HP Color LaserJet Enterprise.
You can print, zoom or read any diagram, picture or page from this full – Repair, Troubleshooting & Parts List. 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 Enterprise M855dn, Enterprise M855xh, Enterprise M855x+ / HP Color LaserJet Enterprise Flow MFP M880z, M880z+. You can find easily everything what do you need.
To see what contain, please read table of contents:

Content for REPAIR & PARTS LIST MANUAL:
1. REMOVAL AND REPLACEMENT
Removal and replacement strategy
Considerations during removal and replacement
Required tools
Types of screws
Service approach
Before performing service
After performing service
Parts removal order
Supported paper sizes and types
Supported paper sizes for the input trays and duplexer
Supported paper types for the input trays and duplexer
Supported paper sizes for the finishing accessories
Supported paper types for the finishing accessories
Customer-self repair assemblies
Toner cartridge
Imaging drum
Secondary transfer roller
Reinstall the secondary transfer roller
Tray 2, 1×500 Tray 3, 3×500 Tray 3, 3×500 Tray 4, and 3×500 Tray 5
Intermediate transfer belt (ITB)
Fuser
Switch back tray
Formatter
Reinstall the formatter or install a replacement formatter
Hard-disk drive (HDD) or solid-state memory (SSM)
Identify the storage device
Remove the HDD
Reinstall the HDD
Remove the SSM
Reinstall the SSM
Reinstall the product firmware
Memory DIMM
Remove the memory DIMM
Reinstall the memory DIMM
Fax PCA (M880)
Remove the fax PCA (M880)
Document feeder mylar strip (M880)
Install a replacement document feeder mylar strip (M880)
Document feeder white backing (M880)
Install a replacement document feeder white backing (M880)
Background selector (M880)
Reinstall the background selector (M880)
Control panel assembly (M855)
Reinstall the control panel assembly (M855)
Control panel assembly (M880)
Reinstall the control panel assembly (M880)
Keyboard assembly (M880)
Remove the keyboard assembly (M880)
Reinstall the keyboard assembly (M880)
Pickup, feed, and separation rollers and pads
Document-feeder roller (M880 only)
Reinstall the document-feeder roller (M880 only)
Document-feeder separation pad (M880 only)
Reinstall the document-feeder separation pad (M880 only)
Tray 1 rollers
Reinstall the Tray 1 rollers
Tray 2, 1×500-sheet feeder, and 3×500-sheet feeder rollers
Remove the Tray 2, 1×500-sheet feeder, and 3×500-sheet feeder rollers
Reinstall the Tray 2, 1×500-sheet feeder, and 3×500-sheet feeder rollers
High-capacity input (HCI) rollers
Remove the HCI rollers
Reinstall the HCI rollers
Covers and doors
Location of major components
Scanner back cover (M880)
Scanner left cover (M880)
Remove the scanner left cover (M880)
Scanner right cover (M880)
Remove the scanner right cover (M880)
Scanner front cover (M880)
Remove the scanner front cover (M880)
Right upper rear cover (M855)
Hardware integration pocket (HIP) cover (M855)
Hardware integration pocket (HIP) cover (M880)
Reinstall the HIP cover (M880)
Face-down bin
Reinstall the face-down bin
Left rear cover
Remove the left rear cover
Switch back cover
Lower right cover
Rear upper rear cover (M880)
Right upper rear cover (M880)
Rear upper MFP cover (M880)
Reinstall the rear upper MFP cover (M880)
Left upper rear cover and rear upper B cover (M880)
Remove the left upper rear cover and rear upper B cover (M880)
Rear upper front cover (M880)
Remove the rear upper front cover (M880)
Front top cover
Remove the front top cover
Rear top cover (M855)
Remove the rear top cover (M855)
Left cover
Remove the left cover
Right upper front cover (M855)
Remove the right upper front cover (M855)
Right upper front cover (M880)
Remove the right upper front cover (M880)
Right upper cover (M855)
Remove the right upper cover (M855)
Right door assembly
Remove the right door assembly
Reinstall the right door assembly
Left front cover
Remove the left front cover
Install a replacement left front cover
Front door
Reinstall the front door
Rear cover
Remove the rear cover
Install a replacement rear cover
Right rear cover
Remove the right rear cover
Front inner cover
Remove the front inner cover
Reinstall the front inner cover
Main assemblies
Location of major components
Document feeder assembly (M880)
Remove the document feeder assembly (M880)
Reinstall the document feeder assembly (M880)
Scanner control board (SCB) (M880)
Remove the SCB (M880)
Scanner assembly (M880)
Remove the scanner assembly (M880)
Reinstall the scanner assembly (M880)
Interlock switch assembly
Remove the interlock switch assembly
Front-door open detection switch
Remove the front-door open detection switch
Reinstall the front-door-open detection switch
Main switch assembly
Remove the main switch assembly
Secondary transfer assembly
Remove the secondary transfer assembly
Reinstall the secondary transfer assembly
Multipurpose tray (Tray 1) drive assembly
Remove the multipurpose tray (Tray 1) drive assembly
Multipurpose tray (Tray 1) guide assembly
Remove the multipurpose tray guide assembly
Tray 2 pickup unit
Remove the Tray 2 pickup assembly
Fuser home position sensor
Remove the fuser home position sensor
Reinstall the fuser home position sensor
Shutter gear holder assembly
Remove the shutter gear holder assembly
Reinstall the shutter gear holder assembly
Fuser-edge area cooling fan FM10 (front)
Remove the fuser-edge area cooling fan FM10 (front)
Reinstall the fuser-edge area cooling fan FM10 (front)
Fuser-edge area cooling fan FM9 (rear)
Remove the fuser-edge area cooling fan FM9 (rear)
Reinstall the fuser-edge area cooling fan FM9 (rear)
Fuser fan FM2
Remove the fuser fan FM2
Reinstall the fuser fan FM2
Fuser fan duct
Remove the fuser fan duct
Reinstall the fuser fan duct
Cartridge fan FM3 (yellow and magenta)
Remove the cartridge fan FM3 (yellow and magenta)
Reinstall the cartridge fan FM3 (yellow and magenta)
Cartridge fan FM4 (cyan and black)
Remove the cartridge fan FM4 (cyan and black)
Reinstall the cartridge fan FM4 (cyan and black)
Laser/scanner fan FM1
Remove the laser/scanner fan FM1
Reinstall the laser/scanner fan FM1
Delivery fan FM8
Cartridge front area cooling fan FM7
Remove the cartridge front area cooling fan FM7
Reinstall the cartridge front area cooling fan FM7
Memory tag PCA
Remove the memory tag PCA
Reinstall the memory tag PCA and sheet-metal bracket
Image-drum motor
Remove the image-drum motor
Fuser power supply
Remove the fuser power supply
Reinstall the fuser power supply
Primary transfer-roller disengagement motor
Remove the primary transfer-roller disengagement motor
Intermediate transfer belt (ITB) alienation-drive assembly
Remove the ITB alienation-drive assembly
Fuser motor
Remove the fuser motor
Intermediate transfer belt (ITB) motor
Remove the ITB motor
Toner-cartridge feed motor (black)
Remove the toner-cartridge feed motor (black)
Toner-cartridge feed motor (yellow, magenta, and cyan)
Remove the toner-cartridge feed motor (yellow, magenta, and cyan)
Environmental sensor
Remove the environmental sensor
Interconnect PCA (M855)
Remove the interconnect PCA (M855)
Reinstall the interconnect PCA (M855)
Interconnect PCA (M880)
Remove the interconnect PCA (M880)
Reinstall the interconnect PCA (M880)
Formatter case
Remove the formatter case
Reinstall the formatter case
Formatter, formatter case, and interconnect board (ICB)
Remove the formatter, formatter case, and ICB
Reinstall the formatter, formatter case, and ICB
High-voltage power supply (HVPS) B
Remove the HVPS B
Reinstall the HVPS B
DC controller PCA
Remove the DC controller PCA
Color-plane registration (CPR) sensor assembly
Remove the CPR sensor assembly
Reinstall the CPR sensor assembly
Low-voltage power supply (LVPS)
Remove the LVPS
High-voltage power supply (HVPS) A (first transfer)
Remove the HVPS A (first transfer)
Reinstall the HVPS A (first transfer)
Lifter-drive assembly
Remove the lifter-drive assembly
Reinstall the lifter-drive assembly
Toner-cartridge drive assembly (yellow and magenta)
Remove the toner-cartridge drive assembly (yellow and magenta)
Reinstall the toner-cartridge drive assembly (yellow and magenta)
Toner-cartridge drive assembly (cyan and black)
Remove the toner-cartridge drive assembly (cyan and black)
Reinstall the toner-cartridge drive assembly (cyan and black)
Cartridge interface PCA (cyan and black)
Remove the cartridge interface PCA (cyan and black)
Cartridge interface PCA (yellow and magenta)
Remove the cartridge interface PCA (yellow and magenta)
Main drive assembly
Remove the main drive assembly
Reinstall the main drive assembly
Replace or reinstall the toner-cartridge drive assemblies or the main drive assembly
Replace the toner-cartridge drive assembly or the main drive assembly
Reinstall the toner-cartridge drive assembly or the main drive assembly
Fuser drive assembly
Remove the fuser drive assembly
Reinstall the fuser drive assembly
Scanner cover
Remove the scanner cover
Laser/scanner assembly (yellow and magenta)
Remove the laser/scanner assembly (yellow and magenta)
Reinstall the laser/scanner assembly (yellow and magenta)
Laser/scanner assembly (cyan and black)
Remove the laser/scanner assembly (cyan and black)
Reinstall the laser/scanner assembly (cyan and black)
Duplex reverse assembly (M855)
Remove the duplex reverse assembly (M855)
Duplex reverse assembly (M880)
Remove the duplex reverse assembly (M880)
VOC fan (M855)
Remove the VOC fan (M855)
VOC fan (M880)
Remove the VOC fan (M880)
Face-down delivery assembly(M855)
Remove the face-down delivery assembly (M855)
Face-down delivery assembly (M880)
Remove the face-down delivery assembly (M880)
Face-down cover
Remove the face-down cover
Duplexing feed assembly
Reinstall the duplexing feed assembly
Multipurpose tray (Tray 1) pickup assembly
Remove the multipurpose tray (Tray 1) pickup assembly
Reinstall the multipurpose tray (Tray 1) pickup assembly
Input accessories
High-capacity input (HCI) feeder
Location of major components
HCI right tray
HCI left tray
HCI rear cover
HCI right lower cover
ENWW xi
Remove the HCI right lower cover
HCI right tray pickup motor
Remove the HCI right tray pickup motor
HCI right tray pickup drive
Remove the HCI right tray pickup drive
HCI left tray pickup motor
Remove the HCI left tray pickup motor
HCI left tray pickup drive
Remove the HCI left tray pickup drive
HCI right tray lifter drive assembly
Remove the HCI right tray lifter drive assembly
HCI left tray lifter drive assembly
Remove the HCI left tray lifter drive assembly
HCI right tray media-level sensor assembly
Remove the HCI right tray media-level sensor assembly
HCI left tray media-level sensor assembly
Remove the HCI left tray media-level sensor assembly
HCI right tray automatic close assembly
Remove the HCI right tray automatic close assembly
HCI left tray automatic close assembly
Remove the HCI left tray automatic close assembly
HCI right tray pickup assembly
Remove the HCI right tray pickup assembly
Reinstall the HCI right tray pickup assembly
HCI left tray pickup assembly
Remove the HCI left tray pickup assembly
Reinstall the HCI left tray pickup assembly
HCI merge assembly
Remove the HCI merge assembly
Reinstall the HCI merge assembly
HCI controller PCA
Remove the HCI controller PCA
1×500- and 3×500-sheet feeders
Location of major components
1×500 and 3×500 rear cover
1×500 and 3×500 right front cover
Remove the 1×500 and 3×500 right front cover
Reinstall the 1×500 and 3×500 right front cover
1×500 and 3×500 upper front face cover
Remove the 1×500 and 3×500 upper front face cover
Reinstall the 1×500 and 3×500 upper front face cover
1×500 and 3×500 upper front cover
Remove the 1×500 and 3×500 right front cover
1×500 and 3×500 upper front left face cover
Remove the 1×500 and 3×500 upper front left face cover
1×500 storage box door
Remove the 1×500 storage box door
1×500 storage box
Remove the 1×500 storage box
1×500 and 3×500 right lower cover
Remove the 1×500 and 3×500 right lower cover
1×500 Tray 3 pickup assembly
Remove the 1×500 Tray 3 pickup assembly
Reinstall the 1×500 Tray 3 pickup assembly
3×500 Tray 3 pickup assembly
Remove the 3×500 Tray 3 pickup assembly
Reinstall the 3×500 Tray 3 pickup assembly
3×500 Tray 4 pickup assembly
Remove the 3×500 Tray 4 pickup assembly
Reinstall the 3×500 Tray 4 pickup assembly
3×500 Tray 5 pickup assembly
Remove the 3×500 Tray 5 pickup assembly
Reinstall the 3×500 Tray 5 pickup assembly
1×500 Tray 3 automatic close assembly
Remove the 1×500 Tray 3 automatic close assembly
3×500 Tray 3, Tray 4, and Tray 5 automatic close assemblies
Remove the 3×500 Tray 3, Tray 4, and Tray 5 automatic close assemblies
1×500 Tray 3, 3×500 Tray 3, Tray 4, and Tray 5 pickup motors
Remove the 1×500 Tray 3, 3×500 Tray 3, Tray 4, and Tray 5 pickup motors
1×500 and 3×500 controller PCA
Remove the HCI controller PCA
Shared input accessory covers and doors
HCI, 1×500, and 3×500 left cover
Remove the HCI, 1×500, and 3×500 left cover
Reinstall the HCI, 1×500, and 3×500 left cover
HCI, 1×500, and 3×500 right door assembly
Remove the HCI, 1×500, and 3×500 right door assembly
HCI, 1×500, and 3×500 right rear cover
Remove the HCI, 1×500, and 3×500 right rear cover
Reinstall the HCI right rear cover
ENWW xiii
Intermediate paper transport unit (IPTU)
Location of major components
IPTU assembly
IPTU rear cover
Reinstall the IPTU rear cover
IPTU driver PCA
Remove the IPTU driver PCA
IPTU finisher lock assembly
Remove the IPTU finisher lock assembly
IPTU fan assembly
Remove the IPTU fan assembly
IPTU side panel assembly
Remove the IPTU side panel assembly
Reinstall the IPTU side panel assembly
IPTU upper and lower guide assemblies
Remove the IPTU upper and lower guide assemblies
Install a replacement IPTU upper guide assembly
Finishing accessories
Identify the finishing accessories
Identifying finishing accessory covers and doors
Shared finishing accessory assemblies
Top cover lock assembly
Latch lower covers (front and rear)
Latch assembly
Remove the latch assembly
Open/closed stepped cover assembly
Upper stepped cover assembly
Lower stepped cover assembly
Remove the lower stepped cover assembly
Reinstall the lower stepped cover
Top door assembly
Front door
Remove the front door
Inner upper cover assembly
Inner upper cover assembly (remove)
Clutch assembly (front side)
Remove the clutch assembly (front side)
Sensor switch assembly
Remove the sensor switch assembly
Inner lower cover assembly
Inner lower cover assembly (remove)
Front foot cover assembly
Remove the front foot cover assembly
Bin cable guide cover
Reinstall the bin cable guide cover
Rear cover assembly
Remove the rear cover assembly
Main controller PCA assembly
Remove the main controller PCA assembly
Entrance upper guide assembly
Remove the entrance upper guide assembly
Rear foot cover assembly
Remove the rear foot cover assembly
Stack wall upper assembly and upper wall guide assembly
Remove the stack wall upper assembly and upper wall guide assembly
Upper cross member assembly
Remove the upper cross member assembly
Reinstall the upper cross member assembly
Paper feed drive assembly
Remove the paper feed drive assembly
Pressure roller assembly
Remove the pressure roller assembly
Stack upper bin and lower bin assemblies
Remove stack upper bin and lower bin assemblies
Reinstall the stack upper bin and lower bin assemblies
Height wall assembly
Remove the height wall center assembly
Reinstall the height wall assembly
Paper face sensor and flag assembly
Remove the paper face sensor and flag assembly
Staple subassembly
Remove the staple subassembly
Staple connecting cable assembly
Remove the staple connecting cable assembly
Staple assembly
Remove the staple assembly
Paper detect holder assembly
Remove the paper detect holder assembly
Reinstall the paper detect holder assembly
Operation tray assembly
Remove the operation tray assembly
Reinstall the operation tray assembly
Swing guide assembly
Remove the swing guide assembly
Reinstall the swing guide assembly
Return roller assembly
Remove the return roller assembly
Clutch assembly (rear side)
Remove the clutch assembly (rear side)
Stack ejection motor assembly
Remove the stack ejection motor assembly
Press motor assembly
Remove the press motor assembly
Common driver PCA assembly
Remove the common controller PCA assembly
Interface cable assembly
Remove the interface cable assembly
Paper pass assembly
Remove the paper pass assembly
Booklet maker accessory
Knob
Saddle output bin assembly
Reinstall the saddle output bin
Right cover assembly (BM PCA)
Remove the right cover assembly (BM PCA)
Booklet maker controller PCA
Remove the booklet maker controller PCA
Inner side plate assembly
Remove the inner side plate assembly
Before reinstalling the inner side plate assembly
Guide sensor assembly
Remove the guide sensor assembly
Guide motor assembly
Remove the guide motor assembly
Saddle motor assembly (SS and BM)
Remove the saddle motor assembly (SS and BM)
Saddle feed motor assembly
Remove the saddle feed assembly
Folding-motor mount assembly
Remove the folding-motor mount assembly
Reinstall the folding-motor mount assembly
Delivery switch mount assembly
Remove the delivery switch mount assembly
Saddle stapler assembly
Remove the saddle stapler assembly
Lower left guide assembly
Remove the lower left guide assembly
Saddle delivery inner cover, front assembly
Remove the saddle delivery inner cover, front assembly
Saddle delivery inner cover, rear assembly
Remove the saddle delivery inner cover, rear assembly
Saddle guide assembly
Remove the saddle guide assembly
Reinstall the saddle guide assembly
Saddle feed assembly
Remove the saddle feed assembly
Reinstall the saddle feed assembly
Saddle assembly
Remove the saddle assembly
Reinstall the saddle assembly
Upper delivery guide assembly
Remove the upper delivery guide assembly
Saddle paper delivery assembly
Remove the saddle paper delivery assembly
Reinstall the saddle paper delivery assembly
Saddle rear end sensor assembly
Remove the saddle rear end sensor assembly
Reinstall the saddle rear end sensor
Booklet maker and stapler/stacker with hole punch accessories
Remove the punch front cover
Punch lower front cover assembly
Remove the punch lower front cover assembly
Punch rear cover assembly
Remove the punch rear cover assembly
Punch controller PCA assembly
Remove the punch controller PCA assembly
Reinstall the punch controller PCA assembly
Punch waste tray
Punch inner cover assembly
Remove the punch inner cover assembly
Punch top cover
Remove the punch top
Punch hole assembly
Remove the punch hole assembly
Reinstall the punch hole assembly
Replace the punch hole assembly or the punch controller PCA assembly
Set the punch hole assembly type
Set the sensor adjustment values

2. PARTS AND DIAGRAMS
Order parts by authorized service providers
Order parts, accessories, and supplies
Related documentation and software
Supplies part numbers
Customer self-repair parts
Service replacement parts
Accessories
How to use the parts lists and diagrams
Assembly locations
Base product (no optional trays or accessories)
Stapler/stacker and booklet maker
Stapler/stacker external assembly locator
Booklet maker
Intermediate paper transportation unit (IPTU)
1×500-sheet feeder
3×500-sheet feeder
High-capacity input (HCI) feeder
Document feeder and scanner assemblies (M880)
Document feeder assemblies (M880)
Scanner assemblies (M880)
Covers
Right door assembly
Internal components
Internal components (1 of 6)
Internal components (2 of 6)
Internal components (3 of 6)
Internal components (4 of 6)
Internal components (5 of 6)
Internal components (6 of 6)
Intermediate paper transfer unit (IPTU) assemblies
1×500-sheet feeder with stand (M855 only) covers
1×500-sheet feeder with stand (M855 only) covers
1×500-sheet feeder with stand components
3×500-sheet feeder
3×500-sheet feeder covers
3×500-sheet feeder components
High-capacity input (HCI) feeder
Stapler stacker/booklet maker
Stapler/stacker covers
Booklet maker covers
Finisher main body (1 of 3)
Finisher main body (2 of 3)
Finisher main body (3 of 3)
Stapler/stacker main body
Booklet maker main body
Booklet maker saddle assembly
Alphabetical parts list
Numerical parts list
Index

———————————————-

Content for TROUBLESHOOTING MANUAL:
1. THEORY OF OPERATION
Basic operation
Sequence of operation
Normal sequence of operation
Formatter-control system
Formatter hardware
Sleep mode
Input/output
CPU
Memory
Firmware
Nonvolatile memory
PJL overview
PML
Control panel
Engine-control system
DC controller
Motors
Fans
Automatic damp paper detection
Low-voltage power supply
Over-current/over-voltage protection
Sleep mode operation
High-voltage power supply
Fuser bias
Fuser-control circuit
Fuser heater protection
Fuser identification
Fuser-life detection
Laser/scanner system
Image-formation system
Image-formation process
Step 1: Pre-exposure
Step 2: Primary charging
Step 3: Laser-beam exposure
Step 4: Development
Step 5: Primary transfer
Step 6: Secondary transfer
Step 7: Separation
Step 8: Fusing
Step 9: ITB cleaning
Step 10: Drum cleaning
Toner cartridge
Imaging drum
Developing roller engagement and disengagement
Intermediate transfer belt (ITB) unit
Primary-transfer roller engagement and disengagement
ITB unit detection
Secondary-transfer roller unit
Calibration
Calibration overview
Color-misregistration control
Image stabilization control
Color sensor and color-sensor sensor control (M855 only)
Gray-axis correction
Scanning/image capture system
Scanner
Document feeder system
Document feeder sensors
Document feeder simplex operation
Document feeder duplex operation
Document feeder paper control and deskew
Document feeder paper pick and separation
Document feeder paper stopper and fins
Document feeder simplex selector
Document feeder white backing
Document feeder duplex selector
Document feeder hinge
Pickup, feed, and delivery system
Photo sensors and switches
Motors and solenoids
Pickup-and-feed system
Cassette pickup
Cassette paper-size and cassette-presence detection
Cassette lift operation
Cassette paper-level and paper-presence detection
Multifeed prevention
Multipurpose tray pickup
Multipurpose tray last-paper detection
Paper feed
Skew-feed prevention
Paper-type detection
Feed-speed control
Media width detection
Fusing and delivery unit
Loop control
Fuser depressurize control
Duplexing unit
Duplexing reverse and feed control
Jam detection
1×500-sheet paper feeder (M855 only) and 3×500-sheet paper feeder
1×500- and 3×500-sheet paper-feeder cassette media-size detection and cassettepresence detection
Paper feeder electrical components
Paper-feeder pickup-and-feed operation
Paper feeder jam detection
3,500-sheet high-capacity input (HCI) feeder
HCI electrical components
HCI motor control
HCI motor failure detection
HCI pickup-and-feed operation
HCI electrical components
HCI lift-up operation
HCI cassette media-size detection and cassette-presence detection
HCI jam detection
Intermediate paper transportation unit
IPTU electrical components
IPTU motor control
Feed operation
IPTU motor failure detection
IPTU fan control
IPTU fan failure detection
IPTU jam detection
Stapler/stacker and stapler/stacker with hole punch
Stapler/stacker electrical components
Stapler/stacker motor control
Stapler/stacker motor failure detection
Stapler/stacker feed-and-delivery operation
Stapler/stacker basic operation
Stapler/stacker electrical circuitry
Stapler/stacker feed drive system
Paper delivery path (stapler/stacker and booklet maker)
Stack operation
Output bin operation
Process output bin paper-stacking operation
Shutter operation
Stack delivery operation
Offset operation
Stack trailing-edge assist operation
Intermediate-process output-bin assembly
Stack job offset
Stapler/stacker delivery modes
Stapler/stacker with hole puncher assembly delivery modes
Staple operation
Shift the staple unit
Hole puncher assembly
Side registration operation
Hole punching operation (2-hole/3-hole puncher assembly)
Hole punching operation (2-hole/4-hole hole puncher assembly)
Stapler/stacker additional functions
Stapler/stacker jam detection
Hole puncher assembly jam detection
Stapler/stacker assembly jam detection
Stapler/stacker assembly inlet delay jam
Booklet maker and booklet maker with hole punch
Booklet maker power supply
Stacker unit power supply route
Stacker unit protective function
Booklet maker unit power-supply route
Booklet maker unit protective function
Booklet maker electrical components
Booklet maker motor control
Booklet maker motor failure detection
Booklet maker feed-and-delivery operation
Basic operation
Stacker unit basic operation
Stacker unit electrical security
Booklet maker unit basic operation
Booklet maker unit electrical circuitry
Feed drive system
Booklet maker paper delivery path
Booklet maker basic operation
Booklet maker control of the inlet flappers
Booklet maker control of paper movement
Booklet maker alignment of paper
Booklet maker control of the crescent roller
Booklet maker folding
Booklet maker fold the stack
Booklet maker double folding a stack
Booklet maker intermediate-process-tray assembly
Stack job offset
Booklet maker staple operation
Stapler unit
Stapling operation
Stitcher (stapler) unit
Booklet maker stack operation
Output bin operation
Shutter operation
Booklet maker paper-delivery path
Booklet maker delivery modes
Booklet maker with hole puncher assembly delivery modes
Booklet maker jam detection

2. SOLVE PROBLEMS
Solve problems checklist
Menu map
Preboot menu options
Current settings pages
Troubleshooting process
Determine the problem source
Troubleshooting flowchart
Power subsystem
Power-on checks
Power-on troubleshooting overview
Scanning subsystem (M880)
Control panel checks
Control panel diagnostic flowcharts
Touchscreen black, white, or dim (no image)
Touchscreen is slow to respond or requires multiple presses to respond
Touchscreen has an unresponsive zone
No control panel sound
Home button is unresponsive
Hardware integration pocket (HIP) is not functioning (control panel functional)
Tools for troubleshooting
Individual component diagnostics
LED diagnostics
Understand lights on the formatter
Engine diagnostics
Defeating interlocks
Disable cartridge check
Engine test button
Paper path test
Paper path sensors test
Manual sensor and tray/bin manual sensor tests
Manual sensor test
Tray/bin manual sensor test
Print/stop test
Component tests
Control panel tests
Component test (special-mode test)
Finishing accessory component test
Scanner tests M880
Scanner tests
Diagrams
Block diagrams
Location of connectors
DC controller PCA connectors
High-capacity input (HCI) feeder controller PCA connectors
1×500-sheet and 3×500-sheet paper feeder controller PCA connectors
Finishing accessories PCA connectors
Plug/jack locations
Locations of major components
Base product
High-capacity input (HCI) feeder
Finishing accessories
General timing chart
Circuit diagrams
Internal print-quality test pages
Print-quality troubleshooting pages
Fuser test page
Cleaning page
Enable and configure auto cleaning
Print configuration page
Configuration page
HP embedded Jetdirect page
Finding important information on the configuration pages
Color band test
Print-quality troubleshooting tools
Repetitive defects ruler
Calibrate the product to align the colors
Control-panel menus
Administration menu
Reports menu
General Settings menu
Copy Settings menu (M880 only)
Scan/Digital Send Settings menu (M880)
Fax Settings menu (M880)
General Print Settings menu
Default Print Options menu
Display Settings menu
Manage Supplies menu
Manage Trays menu
Network Settings menu
Troubleshooting menu
Device Maintenance menu
Backup/Restore menu
Calibration/Cleaning menu (M880)
Calibration/Cleaning menu (M855)
USB Firmware Upgrade menu
Service menu
Interpret control-panel messages and event log entries
10.XX.YZ Error Messages
10.0X.00 e-Label Memory Error
10.0X.10 e-Label Missing Memory Error
10.0X.15 Install  (Event Code)
10.0X.25 Wrong cartridge in  slot
10.0X.34 Used Supply in use
10.0X.35 Incompatible
10.0X.40 Genuine HP supplies installed
10.0X.41 Unsupported Supply in use
10.0X.70 Printing past very low (EVENT CODE)
10.0X.90 Replace  cartridge
10.0X.91 Cartridge Error
10.0X.92 Cartridge Error
10.22.60 (Control Panel Message: Transfer Kit Low) 10.22.69 (Control panel Message: Transfer Kit Very Low)
10.22.70 Printing Past Very Low (Event Code) Transfer Kit
10.23.35 Incompatible Supply (event code) Fuser Kit
10.23.60 (Control panel Message: Fuser Kit Low) 10.22.69 (Control panel Message: Fuser Kit Very Low)
10.23.70 Printing Past Very Low (Event Code) Fuser Kit
10.39.50 New Document Feeder Kit
10.39.53 ADF kit clean rollers recommended
10.39.55 Clean Document Feeder Rollers
10.39.56
10.39.60 Document Feeder Kit low
10.39.69 Document Feeder Kit very low
10.39.70 Scanning past very low
10.39.71 Document Feeder has stopped
10.99.91 Cartridge motor stall, no particular cartridge
11.XX.YZ Error Messages
11.00.01 or 11.00.02 Internal clock error
13.XX.YZ Error Messages
13.60.Az
13.60.Dz
13.60.FF
13.64.Az
13.64.Dz
13.67.Az
13.67.Dz
13.67.FF
13.68.Az
13.68.Dz
13.69.Az
13.69.Dz
13.84.Az
13.89.3z
13.90.Az
13.90.Dz
13.92.FF
13.94.Az
13.94.Dz
13.96.33
13.97.33
13.98.A3
13.98.D3
13.A1.A1
13.A1.D1
13.A1.FF
13.A2.A2
13.A2.D2
13.A2.FF
13.A3.A3
13.A3.A3
13.A3.D3
13.A3.D3
13.A3.FF
13.A3.FF
13.A4.D4
13.A4.D4
13.A4.FF
13.A4.FF
13.A5.D5
13.A5.FF
13.A7.D3
13.A7.D4
13.A7.FF
13.A8.D3 or 13.A8.D4
13.A8.D3 or 13.A8.D4 or 13.A8.D5
13.AA.EE
13.AA.EE
13.AB.EE
13.B2.Az
13.B2.Dz
13.B2.FF
13.B4.FF
13.B9.Az
13.B9.Bz Jam in RIGHT Door
13.B9.Cz
13.B9.Dz
13.B9.FF
13.BA.EE
13.BB.EE
13.D1.Az
13.D1.Dz
13.D1.FF
13.D3.Az
13.D3.Dz
13.D3.FF
13.DF.Dz
13.E1.Dz
13.E1.FF
13.E2.Az
13.E2.Dz
13.E3.Az
13.E3.Dz
13.E34Az
13.E4.Dz
13.E6.Dz
13.E6.FF
13.EA.EE
13.FF.FF
30.XX.YZ Error Messages
30.01.01
30.01.06
30.01.08
30.01.14
30.01.15
30.01.18
30.01.19
30.01.23 Scanner calibration failure
30.01.30 or 30.01.32
30.01.36
30.01.41
30.01.42
30.01.43
30.01.44
30.01.45
30.01.46
30.01.47
30.01.48
30.01.49
30.01.50
30.03.14
30.03.20
30.03.22
30.03.23
30.03.30
30.03.45
31.XX.YZ Error Messages
31.03.14
31.03.20
31.03.22
31.03.30
31.03.31
31.03.32
31.03.34
31.13.01
31.13.02
31.13.13
31.13.14
31.13.15
32.08.XX Error Messages
32.08.A1, 32.08.A2, 32.08.A3
32.1C.XX
40.XX.YZ Error Messages
40.00.01 USB I/O buffer overflow To continue, touch “OK”
40.00.02 Embedded I/O buffer overflow To continue, touch “OK”
40.00.03 EIO  buffer overflow To continue, touch “OK”
40.00.04 EIO  bad transmission To continue, touch “OK”
40.00.05 Embedded I/O bad transmission To continue, touch “OK”
40.08.0X USB storage accessory removed
40.0X.05 USB storage accessory removed
41.XX.YZ Error Messages
41.01.YZ
41.02.00
41.03.FZ Unknown Misprint Error
41.03.YZ Unexpected size in envelope feeder To use another tray, touch “Options ”
41.03.YZ Unexpected size in tray
41.04.YZ Printer Error
41.05.YZ Unexpected type in tray
41.06.YZ Error To continue, touch “OK”
41.07.YZ Error To continue, touch “OK”
41.XX.YZ Error To continue, touch “OK”
42.XX.YY Error Messages
42.XX.YY Error Event Log message
44.XX.XX Error Messages
44.01.XX Error Event log message (MFP Only)
44.02.XX Error Event log message (MFP Only)
44.03.XX Error Event log message (MFP Only)
44.04.XX Error Event log message (MFP Only)
44.05.XX Error Event log message (MFP Only)
44.07.XX Error Event log message (MFP Only)
44.08.XX Error Event log message (MFP Only)
44.10.XX Error Event log message (MFP Only)
44.11.0E Error Event log message (MFP Only)
44.11.XX Error Event log message (MFP Only)
44.12.0E Error Event log message (MFP Only)
44.12.XX Error Event log message (MFP Only)
44.16.01 Error Event log message (MFP Only)
44.16.02 Error Event log message (MFP Only)
44.16.03 Error Event log message (MFP Only)
44.16.04 Error Event log message (MFP Only)
44.16.05 Error Event log message (MFP Only)
44.16.06 Error Event log message (MFP Only)
44.16.07 Error Event log message (MFP Only)
44.16.08 Error Event log message (MFP Only)
44.16.09 Error Event log message (MFP Only)
44.16.0A Error Event log message (MFP Only)
44.16.0B Error Event log message (MFP Only)
44.16.0D Error Event log message (MFP Only)
44.16.0E Error Event log message (MFP Only)
44.16.0F Error Event log message (MFP Only)
44.16.10 Error Event log message (MFP Only)
44.16.FF Error Event log message (MFP Only)
44.34.XX Error Event log message (MFP Only)
44.90.XX Error Event log message – 44.91.XX Error Event log message – 44.92.XX Error Event log message (MFP Only)
47.XX.XX Error Messages
47.00.XX
47.01.XX
47.02.XX
47.03.XX
47.04.XX
47.05.00
47.06.XX
47.WX.YZ Printer Calibration Failed To continue, touch “OK”
48.XX.YY Error Messages
48.XX.YY
49.XX.YY Error Messages
49.XX.YY Error To continue turn off then on
50.WX.YZ Error Messages
50.WX.YZ Fuser error To continue turn off then on
51.XX.YZ, 52.XX.YZ Error Messages
51.00.YZ
52.00.00/52.00.20 Scanner Startup/Rotation error
54.XX.YZ Error Messages
54.00.01 (EVENT LOG ONLY)
54.00.18
54.00.19
54.01.05 (EVENT LOG ONLY)
54.02.05 (EVENT LOG ONLY)
54.03.05 (EVENT LOG ONLY)
54.06.21 or 54.07.21 (EVENT LOG ONLY)
54.0X.0B or 54.0X.0C or 54.0X.0B or 54.0X.0C: (EVENT LOG ONLY)
54.14.00 (EVENT LOG ONLY)
55.XX.YZ, 56.XX.YZ Error Messages
55.00.01, 55.00.03, 55.00.04 DC controller error
55.01.06, 55.02.06 DC controller error
56.00.YY Error
57.XX.YZ Error Messages
57.00.01 Error To continue turn off then on
57.00.02 Error To continue turn off then on
57.00.03 Error To continue turn off then on
57.00.04 Error To continue turn off then on
57.00.05 Error To continue turn off then on
57.00.06 Error To continue turn off then on
57.00.07 Error To continue turn off then on
57.00.08 Error To continue turn off then on
57.00.09 Error To continue turn off then on
57.00.10 Error To continue turn off then on
57.00.11
57.00.12
59.XX.YZ Error Messages
59.00.90 or 59.00.A0
59.00.C0
59.00.F0
59.0X.50
59.0X.60
59.0X.70
59.0X.80
59.A2.02
59.A3.03
59.A4.04
59.A5.05
60.00.0Y, 62.00.00 Error Messages
60.00.02 Tray 2 lifting error
60.00.03 Tray 3 lifting error
60.00.04 Tray 4 lifting error
60.00.05 Tray 5 lifting error
62.00.00 No system To continue turn off then on
65.X0.AZ Error Messages
65.X0.AZ Output accessory Failure
66.WX.YZ Error Messages
66.00.20
66.00.40
66.00.50
66.00.77
66.00.79
66.00.8Z
66.12.46
66.40.YZ
66.50.00
66.60.16
66.60.25
66.60.27
66.60.28
66.60.31
66.60.32
66.60.33
66.60.34
66.60.48
66.60.50
66.80.01
66.80.02
66.80.03
66.80.21
66.80.22
66.80.23
66.80.33
66.80.35
66.80.36
66.80.38
66.80.46
66.80.51
66.80.55
66.80.56
66.80.57
66.80.58
66.80.59
66.80.60
66.80.61
66.80.62
66.80.63
66.80.64
66.80.65
66.80.70
66.80.71
66.80.72
66.80.73
66.80.74
66.80.75
66.80.76
66.90.10
66.90.29
66.90.30
66.90.41
66.90.42
66.90.43
66.90.44
66.90.45
66.90.49
66.90.50
69.11.YZ
70.XX.YY Error Messages
70.00.00 Error To continue turn off then on
80.XX.YY, 82.XX.YY Error Messages
80.0X.YY Embedded Jetdirect Error
82.73.46, 82.73.47
98.0X.0Y Error Messages
98.00.01 or 98.01.00 Corrupt data in firmware volume
98.00.02 Corrupt data in the solutions volume
98.00.03 Corrupt data in the configuration volume
98.00.04 Corrupt data in the job data volume
99.XX.YY Error Messages
99.00.01 Upgrade not performed file is corrupt
99.00.02 Upgrade not performed timeout during receive
99.00.03 Upgrade not performed error writing to disk
99.00.04 Upgrade not performed timeout during receive
99.00.05 Upgrade not performed timeout during receive
99.00.06 Upgrade not performed error reading upgrade
99.00.07 Upgrade not performed error reading upgrade
99.00.08 Upgrade not performed error reading upgrade
99.00.09 Upgrade canceled by user
99.00.10 Upgrade canceled by user
99.00.11 Upgrade canceled by user
99.00.12 Upgrade not performed the file is invalid
99.00.13 Upgrade not performed the file is invalid
99.00.14 Upgrade not performed the file is invalid
99.00.2X
99.01.XX
99.02.01
99.02.09
99.09.60 Unsupported disk
99.09.61 Unsupported disk
99.09.62 Unknown disk
99.09.63 Incorrect disk
99.09.64 Disk malfunction
99.09.65 Disk data error
99.09.66 No disk installed
99.09.67 Disk is not bootable please download firmware
99.09.67 Disk is not bootable please download firmware
99.XX.YY
Alpha Error Messages
full Remove all paper from bin
almost full
low OR Supplies low
very low OR Supplies very low
lifting
[File System] device failure To clear touch “OK”
[File System] file operation failure To clear touch “OK”
[File System] file system is full To clear touch “OK”
[File System] is not initialized
[File System] is write protected
Accept bad signature
ADF not detected
Bad duplexer connection
Bad optional tray connection
Calibration reset pending
Canceling
Canceling
Cartridge Low
Cartridge Memory Abnormal
Cartridge Out
Checking engine
Checking paper path
Chosen personality not available To continue, touch “OK”
Clearing event log
Clearing paper path
Close Front door
Close Fuser cover door
Close Left door Close Output Accessory Bridge
Close Lower Right door
Close output accessory bridge
Close Secondary Registration assembly cover
Close stapler/stacker multi bin mailbox door
Close Upper Right Door
Cooling device
Data received To print last page press “OK”
Different paper sizes in job
ENWW xxi
EIO  disk initializing
EIO  disk not functional
EIO  disk spinning up
Event log is empty
Expected drive missing
External device initializing
Fax is disabled – ignoring call
FIM Load Error Send full FIM on  port
Flatbed cover open or Close Flatbed cover
Fuser Kit low
Fuser Kit very low To continue, touch “OK”
Gateways failed
Gateways OK
Genuine HP cartridge installed
Genuine HP supply installed
HP Secure hard drive disabled
Incompatible
Incompatible supplies
Initializing
Install fuser unit
Install supply
Install Transfer Unit
Internal disk device failure To clear touch “OK”
Internal disk file operation failed
Internal disk file system is full
Internal disk is write protected
Internal disk not found
Internal disk not functional
Internal disk not initialized
Internal disk spinning up
Jam in document feeder
Job not stapled due to mixed sizes
Load Tray : [Type], [Size] To use another tray, press “OK”
Loading program
Lower left booklet bin full
Manually feed output stack Then touch “OK” to print second side
Manually feed:  To use another tray, press “OK”
Moving solenoid
Moving solenoid and motor
No job to cancel
Non HP Supply Installed
Output Bin Full
Output Device detached
Paused
Performing Paper Path Test
Please Wait
Printing Configuration
Printing Event Log
Printing File Directory
Printing Font List
Printing Fuser Test Page
Printing Help Page
Printing Menu Map
Printing stopped
Printing Supplies Status Page
Printing Usage Page
Printing-engine test
Processing job from tray  completes
Processing
Processing
RAM disk device failure To clear touch “OK”
RAM disk file operation failed To clear touch “OK”
RAM disk file system is full To clear touch “OK”
RAM disk is write protected To clear touch “OK”
RAM disk not initialized
Ready
Ready
Receiving Upgrade
Remove one print cartridge
Remove USB accessory
Replace
Resend external accessory firmware
Resend Upgrade
Restore Factory Settings
ROM disk device failed To clear touch “OK”
ROM disk file operation failed To clear touch “OK”
ROM disk file system is full To clear touch “OK”
ROM disk is write protected To clear touch “OK”
ROM disk not initialized To clear touch “OK”
Rotating Motor
Size mismatch in Tray
Sleep mode on
Staple Cartridge 2 and 3 very low (warning)
Staple Cartridge  low (warning)
Staple Cartridge low
Stapler/Stacker staple jam
Supplies low
Supply Memory Warning
The unit has corrupt data
Too many pages in job to staple
Too many pages to make booklet
Tray  [type] [size]
Tray  empty: [Type], [Size]
Tray  lifting
Tray  open
Tray  overfilled
Type mismatch Tray
Unsupported drive installed To continue, touch “OK”
Unsupported supply in use OR Unsupported supply installed To continue, touch “OK”
Unsupported tray configuration
Unsupported USB accessory detected Remove USB accessory
Upgrade Error
Upper left bin full
USB accessory not functional
USB hubs are not fully supported Some operations may not work properly
USB is write protected To clear touch “OK”
USB needs too much power
USB needs too much power Remove USB and Then Turn Off then On
USB not initialized
USB storage accessory removed Clearing any associated data
USB storage device failure To clear touch “OK”
USB storage file operation failed To clear touch “OK”
USB storage file system is full To clear touch “OK”
Used supply installed To continue, touch “OK” OR Used supply in use Description
Verifying, Please Wait
Waiting for Tray  to lift
Windows Login Required to Use this Feature
Wrong cartridge in  slot
Event log messages
Print or view an event log
Clear an event log
Clear jams
Auto-navigation for clearing jams
Experiencing frequent or recurring paper jams?
Jam sensor locations
Product base
Intermediate paper transport unit (IPTU)
1×500-sheet paper feeder (M855 only)
3×500-sheet paper feeder
3×500-sheet High-capacity input (HCI) feeder
Stapler/stacker and stapler/stacker with hole punch
Booklet maker and booklet maker with hole punch
Clear jams in Tray 1, the right door, and the fuser
Clear jams in Tray 2
Clear jams in the 3×500-sheet feeder and the lower-right door
Clear jams in the 3,500-sheet high-capacity input tray and the lower-right door
Clear jams in the document feeder (M880)
Clear output jams in the output-accessory bridge
Clear jams in the stapler/stacker accessory or the stapler/stacker with hole punch accessory
Clear top left door jams in the stapler/stacker
Clear Stapler 1 jams in the stapler/stacker
Clear stapler/stacker connection jams (hole-punch models only)
Clear jams in the booklet maker accessory or the booklet maker with hole punch accessory
Clear top left door jams in the booklet maker
Clear Stapler 1 jams in the booklet maker
Clear front left door jams in the booklet maker
Clear stapler 2 or 3 jams in the booklet maker
Paper feeds incorrectly or becomes jammed
The product does not pick up paper
The product picks up multiple sheets of paper
The document feeder jams, skews, or picks up multiple sheets of paper (M880)
Prevent paper jams
Use manual print modes
Solve image quality problems
Image defects table
Clean the product
Print a cleaning page
Check the scanner glass for dirt or smudges (M880)
Clean the pickup rollers and separation pad in the document feeder (M880)
Clean the pickup, feed, and separation rollers in the 1X500-sheet paper feeder
Clean the pickup, feed, and separation rollers in the 3X500-sheet paper feeder
Clean the pickup, feed, and separation rollers in the HCI feeder
Clean the rollers in the stapler/stacker and stapler/stacker with hole punch
Clean the rollers in the booklet maker and booklet maker with hole punch
Clean the rollers in the IPTU
Solve performance problems
Solve connectivity problems
Solve USB connection problems
Solve wired network problems
Poor physical connection
The computer is using the incorrect IP address for the product
The computer is unable to communicate with the product
The product is using incorrect link and duplex settings for the network
New software programs might be causing compatibility problems
The computer or workstation might be set up incorrectly
The product is disabled, or other network settings are incorrect
Service mode functions
Service menu
Product resets
Restore factory-set defaults
Restore the service ID
Product cold reset
Format Disk and Partial Clean functions
Active and repository firmware locations
Partial Clean
Execute a Partial Clean
Format Disk
Execute a Format Disk
Solve fax problems (M880)
Checklist for solving fax problems
What type of phone line are you using?
Are you using a surge-protection device?
Are you using a phone company voice-messaging service or an answering machine?
Does your phone line have a call-waiting feature?
Check fax accessory status
General fax problems
The fax failed to send
An Out of Memory status message displays on the product control panel
Print quality of a photo is poor or prints as a gray box
You touched the Stop button to cancel a fax, but the fax was still sent
No fax address book button displays
Not able to locate the Fax settings in HP Web Jetadmin
The header is appended to the top of the page when the overlay option is enabled
A mix of names and numbers is in the recipients box
A one-page fax prints as two pages
A document stops in the document feeder in the middle of faxing
The volume for sounds coming from the fax accessory is too high or too low
Product upgrades
Determine the installed revision of firmware
Perform a firmware upgrade
HP Embedded Web Server
USB flash drive (Preboot menu)
USB flash drive (control-panel menu)

Appendix A: Service and support
Hewlett-Packard limited warranty statement
HP’s Premium Protection Warranty: LaserJet toner cartridge limited warranty statement
HP policy on non-HP supplies
HP anticounterfeit Web site
Color LaserJet Fuser Kit, Transfer Kit, and Roller Kit Limited Warranty Statement
Data stored on the toner cartridge
End User License Agreement
OpenSSL
Customer self-repair warranty service
Customer support

Appendix B: Product specifications
Physical specifications
HP LaserJet Enterprise M855
HP LaserJet Enterprise Flow M880
Accessories
Power consumption, electrical specifications, and acoustic emissions
Environmental specifications
Certificate of Volatility
INDEX

Number of pages: 1726.