HP LaserJet Pro M501 Pro M502dn HP LaserJet Enterprise M506n Enterprise M506dn Enterprise M506x Enterprise MFP M527dn Enterprise MFP M527f Enterprise MFP M527c Enterprise MFP M527z Full Service Manual: Repair, Troubleshooting & Parts List Manual

Full: Repair, Troubleshooting & Parts List Manual HP LaserJet Pro M501 Pro M502dn HP LaserJet Enterprise M506n Enterprise M506dn Enterprise M506x Enterprise MFP M527dn Enterprise MFP M527f Enterprise MFP M527c Enterprise MFP M527z;
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your HP LaserJet Pro copier.
You can print, zoom or read any diagram, picture or page from this Repair, Troubleshooting & Parts List 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 LaserJet Pro M501 Pro M502dn HP LaserJet Enterprise M506n Enterprise M506dn Enterprise M506x Enterprise MFP M527dn Enterprise MFP M527f Enterprise MFP M527c Enterprise MFP M527z photocopier. You can find easily everything what do you need.
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Content for TROUBLESHOOTING MANUAL HP LaserJet Pro M501 Pro M502dn HP LaserJet Enterprise M506n Enterprise M506dn Enterprise M506x Enterprise MFP M527dn Enterprise MFP M527f Enterprise MFP M527c Enterprise MFP M527z:

1) THEORY OF OPERATION
Related documentation and software
Basic operation
Sequence of operation
Formatter-control system
Sleep delay (M501)
Sleep mode (M506/M527)
Auto On / Auto Off mode (M501)
Printer job language (PJL)
Printer management language (PML)
Control panel
Easy-access USB port (M506/M527)
Wireless (wireless models only)
Low end data model (LEDM) overview (M501)
Advanced control language (ACL) overview (M501)
Near field communication (NFC; M506/M527)
CPU
Input/output (I/O)
Memory
Firmware
Nonvolatile random access memory (NVRAM)
Random access memory (RAM)
HP Memory Enhancement technology (MEt)
Engine-control system
DC controller
Motors
Fans
Solenoids
Clutches
Switches
Photointerrupter sensors
Sensors
LEDs
Low-voltage power supply
Low-voltage power supply voltages description
Over-current/over-voltage protection
Safety
Sleep mode operation (M506/M527)
Low-voltage power supply failure detection (M506/M527)
Low-voltage power supply functions
High-voltage power supply
High-voltage power supply circuits
Fuser bias
Fuser control
Fuser circuits
Fuser control functions
Fuser heater protection
Fuser unit life detection (M506/M527)
Fuser identification (M506/M527)
Engine laser/scanner system
Laser/scanner failure detection
Safety
Image-formation process
Step 1: Primary charging
Step 2: Laser-beam exposure
Step 3: Development
Step 4: Transfer
Step 5: Separation
Step 6: Fusing
Step 7: Drum cleaning
Toner cartridge
Design
Memory chip
Toner seal
Toner level and cartridge life detection
JetIntelligence
Authentication
Anti-theft
Pickup, feed, and delivery system
Photo sensors and switches
Motors, clutches, and solenoids
Tray 1 (multipurpose)/Tray 2 (base printer)
Tray 1 paper pickup and feed
Tray 2 paper presence detection
Tray 2 lift operation
Tray 2 paper pickup
Tray 2 multiple-feed prevention
Tray 2 presence detection
Tray 2 skew feed prevention
Feed speed control
Duplexing unit
Duplexing reverse and duplex feed control
Jam detection/prevention
Input accessories
Tray 3-5
Driver PCA
Electrical components
Paper pickup
Multiple feed prevention
Tray presence detection
Tray lift operation
Jam detection
Scanning and image capture system (M527)
Document feeder system (M527)
Document feed system
Sensors in the document feeder
Document feeder paper path
Document feeder simplex operation
Document feeder e-duplex operation
Deskew operation
Document feeder hinges
Fax functions and operation (fax models only)
Computer and network security features
PSTN operation
Receive faxes when you hear fax tones
Distinctive ring function
Set up the distinctive ring function
Fax by using voice over IP (VOIP) services
The fax subsystem
Fax card in the fax subsystem
Safety isolation
Safety-protection circuitry
Data path
Hook state
Downstream device detection
Hook switch control
Ring detect
Line current control
Billing or metering tone filters
Fax page storage in flash memory
Stored fax pages
Advantages of flash memory storage

2) SOLVE PROBLEMS
For additional service and support information
Solve problems checklist (M501)
Print the menu map (M501)
Print the service page (includes the event log) (M501)
Solve problems checklist (M506/M527)
Solve problems checklist
Print menu map (M506/M527)
Print current settings pages (M506/M527)
Print event log (M506/M527)
Pre-boot menu options (M506/M527)
Remote Admin (M506/M527)
Required software and network connection
Connect a remote connection
Disconnect a remote connection
Troubleshooting process
Determine the problem source
Pre-troubleshooting checklist
Troubleshooting flowchart
Power subsystem
Power-on checks
Power-on troubleshooting overview
Control panel checks (M501)
Control panel checks (M506/M527)
Control-panel diagnostics (M506x and M527)
Touchscreen diagnostic mode (M506x and M527)
Control-panel system diagnostics (M506x and M527)
Control panel diagnostic flowcharts (M506x and M527)
Touchscreen black, white, or dim (no image)
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
Tools for troubleshooting: LED diagnostics (M501)
Network port LEDs (M501)
M501 control panel LEDs
Tools for troubleshooting: LED diagnostics (M506/M527)
Understand lights on the formatter (M506/M527)
Tools for troubleshooting: Engine diagnostics
Engine test button
Defeating interlocks
Disable cartridge check (M506/M527)
Tools for troubleshooting: Paper path and sensor diagnostic tests (M506/M527)
Paper path test (M506/M527)
Paper path sensors test (M506/M527)
Manual sensor tests (M506/M527)
Tray/bin manual sensor test (M506/M527)
Tools for troubleshooting: Print/stop test (M506/M527)
Tools for troubleshooting: Component tests (M506/M527)
Individual component diagnostics (special-mode test; M506/M527)
Tools for troubleshooting: Scanner tests (M527)
Scanner tests (M527)
Diagrams
Diagrams: Block diagrams
Sensors and switches
Cross section diagrams
Diagrams: Printed circuit assembly (PCA) connector locations
Diagrams: External plug and port locations
Diagrams: Locations of major assemblies
Main assemblies (printer base)
Rollers and pads (printer base)
Motor and fans
Printed circuit assemblies (PCAs; printer base)
Diagrams: General timing chart
Diagrams: General circuit diagrams
Internal test and information pages
Print a configuration page
HP embedded Jetdirect page (M506/M527)
Wireless page (M506/M527)
Finding important information on the configuration pages
Print a fuser test page (M506/M527)
Advanced configuration with HP Embedded Web Server (EWS) and HP Device
Toolbox (Windows) (M501)
Control panel menus (M501)
Setup menu
HP Web Services menu (M501)
Reports menu (M501)
System Setup menu (M501)
Service menu (M501)
Network Setup menu (M501)
Quick Forms menu (M501)
Function specific menus (M501)
Apps (M501)
Jobs (M501)
Supplies Status (M501)
Control-panel menus (M506/M527)
Administration menu (M506/M527)
Reports menu (M506/M527)
General Settings menu (M506/M527)
Copy Settings menu (M527)
Scan/Digital Send Settings menu (M527)
Fax Settings menu (M527)
General Print Settings menu (M506/M527)
Default Print Options menu (M506/M527)
Display Settings menu (M506/M527)
Manage Supplies menu (M506/M527)
Manage Trays menu (M506/M527)
Network Settings menu (M506/M527)
Troubleshooting menu (M506/M527)
Device Maintenance menu (M506/M527)
Backup/Restore menu (M506/M527)
Calibration/Cleaning menu (M506/M527)
USB Firmware Upgrade menu (M506/M527)
Service menu (M506/M527)
Control panel message document (CPMD)
Control-panel message types
Control-panel messages and event log entries (M501)
49.XX.YY Error Messages
50.XX fuser errors
51.XX Laser Errors
55.XXXX Error Messages
xii ENWW
57.XX Error Messages
58.XX Error Messages
59.XX Error Messages
79 Errors
Alpha Error Messages
Event-log messages
Control-panel messages and event log entries (M506/M527)
10.XX.YZ Error Messages
11.XX.YZ Error Messages
13.XX.YZ Error Messages
20.XX.YZ Error Messages
30.XX.YZ Error Messages
31.XX.YZ Error Messages
32.XX.YX and 33.XX.YZ Error Messages
40.XX.YZ Error Messages
41.XX.YZ Error Messages
42.XX.YZ Error Messages
44.XX.XX Error Messages
47.XX.XX Error Messages
48.XX.YY Error Messages
49.XX.YY Error Messages
50.WX.YZ Error Messages
51.XX.YZ, 52.XX.YZ Error Messages
54.XX.YZ Error Messages
55.XX.YZ, 56.XX.YZ Error Messages
57.XX.YZ Error Messages
58.XX.YZ Error Messages
59.XX.YZ Error Messages
60.00.0Y, 62.00.00 Error Messages
65.X0.AZ Error Messages
66.WX.YZ Error Messages
70.XX.YY Error Messages
80.XX.YY, 82.XX.YY Error Messages
98.0X.0Y Error Messages
99.XX.YY Error Messages
Alpha Error Messages
Tools for troubleshooting: Event log messages (M506/M527)
Print or view an event log (M506/M527)
Clear the event log (M506/M527)
Improve print quality
Print-quality troubleshooting pages (M506/M527)
Print from a different software program
Check the paper-type setting for the print job
Check toner-cartridge status
Visually inspect the toner cartridge or cartridges
Print a cleaning page
Check paper and the printing environment
Use manual print modes (M506/M527)
Try a different print driver
Check Economode settings (M501)
Print quality troubleshooting guide
Image defects table
Product specific image defects
Repetitive image defect ruler
Use a ruler to measure between repetitive defects
Print-quality troubleshooting
Image defect events
Image defect (developmental) events
Other events
Clean the printer
Clean the paper path
Print a cleaning page
Enable and configure auto cleaning (M527)
Check the scanner glass for dirt and smudges (M527)
Clean the pickup rollers and separation pad in the document feeder (M527)
Clean the Tray 1 roller and separation pad
Step 1: Remove the roller
Step 2: Remove the separation pad assembly
Step 3: Clean the Tray 1 roller and separation pad
Step 4: Install the separation pad assembly
Step 5: Install the roller
Clean the Tray 2-X rollers
Step 1: Remove the tray
Step 2: Remove the roller assembly
Step 3: Clean the Tray 2-X rollers
Step 4: Install the roller assembly
Step 5: Install the tray
Solve paper handling problems
Printer feeds incorrect page size
Printer pulls from incorrect tray
Printer will not duplex or duplexes incorrectly
Paper does not feed from Tray 2-X
Output is curled or wrinkled
Printer does not pick up paper or misfeeds
The printer does not pick up paper
The printer picks up multiple sheets of paper
The document feeder jams, skews, or picks up multiple sheets of paper (M527)
Paper does not feed automatically
Clear paper jams
Paper path jam sensor locations
Auto-navigation for clearing jams
Experiencing frequent or recurring paper jams?
Clear paper jams in the document feeder
Clear paper jams in Tray 1
Clear paper jams in Tray 2 and the 550-sheet trays
Clear paper jams in the toner-cartridge area
Clear paper jams in the rear door and the fuser area
Clear paper jams in the output bin
Clear paper jams in the duplexer
Change jam recovery (M506/M527)
Solve performance problems
Factors affecting print performance
Print speeds
The printer does not print or it prints slowly
The printer prints slowly
Solve connectivity problems
Solve USB connection problems
Solve wired network problems
Introduction
Poor physical connection
The computer is using the incorrect IP address for the printer
The computer is unable to communicate with the printer
The printer 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 printer is disabled, or other network settings are incorrect
Service mode functions (M501)
Service menu
Service menu settings
Restore the factory-set defaults
Restore the factory-set defaults from a LCD control panel (M501)
Secondary service menu (M501)
Open the secondary service menu (M501)
Open the secondary service menu from a LCD control panel (M501)
Secondary service menu structure (M501)
Printer resets (M501)
NVRAM initialization (M501)
Service mode functions (M506/M527)
Service menu (M506/M527)
Printer resets (M506/M527)
Restore factory-set defaults (M506/M527)
Restore the service ID (M506/M527)
Printer cold reset (M506/M527)
Format Disk and Partial Clean functions (M506/M527)
Active and repository firmware locations
Partial Clean
Execute a Partial Clean
Format Disk
Execute a Format Disk
Firmware upgrades (M501)
Determine the installed revision of firmware (M501)
Method one: Update the firmware using the control panel (M501)
Method two: Update the firmware using the Firmware Update Utility (M501)
Firmware upgrades M506/M527)
Determine the installed revision of firmware (M506/M527)
Perform a firmware upgrade (M506/M527)
HP Embedded Web Server (M506/M527)
USB flash drive (Pre-boot menu) (M506/M527)
USB flash drive (control-panel menu) (M506/M527)
Solve email problems (M527)
Cannot connect to the email server (M527)
Validate the SMTP gateway (Windows) (M527)
Validate the LDAP gateway (Windows) (M527)

Appendix A: Printer specifications
Printer dimensions
HP LaserJet Enterprise M501 dimensions
HP LaserJet Enterprise M506 dimensions
HP LaserJet Enterprise MFP M527 dimensions
Printer space requirements
Power consumption, electrical specifications, and acoustic emissions
Operating-environment range
Certificate of Volatility
Index

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Content for REPAIR and PARTS LIST MANUAL HP LaserJet Pro M501 Pro M502dn HP LaserJet Enterprise M506n Enterprise M506dn Enterprise M506x Enterprise MFP M527dn Enterprise MFP M527f Enterprise MFP M527c Enterprise MFP M527z:

1) REMOVAL AND REPLACEMENT
For additional service and support
Removal and replacement strategy
Introduction
Considerations during removal and replacement
Electrostatic discharge
Required tools
Fastener types
Service approach
Before performing service
After performing service
Post service tests
Print quality test
Open the secondary service menu from a LCD control panel (M501)
Copy-quality test (M527 models)
Fax-quality test (M527 models)
Parts removal order
Removal and replacement procedures
Customer self-repair (CSR) A parts and assemblies
Removal and replacement: Toner cartridge
Introduction
Step 1: Remove the toner cartridge
Step 2: Unpack the replacement toner cartridge
Step 3: Install the toner cartridge
Removal and replacement: Staple cartridge (M527)
Introduction
Step 1: Remove the staple cartridge
Step 3: Unpack the replacement staple cartridge
Step 3: Install the staple cartridge
Removal and replacement: embedded MultiMedia Card (eMMC) (M506/M527dn)
Introduction
Step 1: Remove the formatter cover
Step 2: Remove the embedded MultiMedia Card (eMMC)
Step 3: Unpack the replacement eMMC
Step 4: Install the eMMC
Step 5: Install the formatter cover
Step 6: Reinstall the printer firmware
Removal and replacement: Hard-disk drive (HDD) (M527c/f/z)
Introduction
Step 1: Remove the formatter cover
Step 2: Remove the hard-disk drive (HDD)
Step 3: Unpack the replacement assembly
Step 4: Install the HDD
Step 5: Install the formatter cover
Step 6: Reinstall the printer firmware
Removal and replacement: Dual in-line memory module (DIMM) (M506/M527)
Introduction
Step 1: Remove the formatter cover
Step 2: Remove the hard-disk drive (HDD)
Step 3: Remove the dual in-line memory module (DIMM)
Step 4: Unpack the replacement DIMM
Step 5: Install the dual in-line memory module (DIMM)
Step 6: Install the hard-disk drive (HDD)
Step 7: Install the formatter cover
Removal and replacement: Transfer roller
Introduction
Step 1: Remove the toner cartridge
Step 2: Remove the transfer roller
Step 3: Unpack the replacement roller
Step 4: Install the transfer roller
Step 5: Install the toner cartridge
Removal and replacement: Control panel (M527)
Introduction
Step 1: Remove the control panel (M527)
Step 2: Unpack the replacement control panel
Step 3: Install the control panel (M527)
Removal and replacement: Control panel (M506x)
Introduction
Step 1: Remove the control panel (M506x)
Step 2: Unpack the replacement control panel
Step 3: Install the control panel (M527)
Removal and replacement: White backing (M527)
Introduction
Step 1: Remove the white backing (M527)
Step 2: Unpack the replacement white backing
Step 3: Install the white backing (M527)
Removal and replacement: Retention clips (M527)
Introduction
Step 1: Remove the retention clips
Step 2: Unpack the replacement retention clips
Step 3: Install the retention clips
Removal and replacement: Keyboard assembly (M527c/z)
Introduction
Step 1: Remove the keyboard (M527c/z)
Step 2: Unpack the replacement assembly
Step 3: Install the keyboard (M527c/z)
Customer self-repair (CSR) B parts and assemblies
Removal and replacement: Multipurpose tray (Tray 1) pickup roller and separation pad
Introduction
Step 1: Remove the roller
Step 2: Remove the separation pad assembly
Step 3: Unpack the replacement roller and pad
Step 4: Install the separation pad assembly
Step 5: Install the roller
Removal and replacement: Tray 2-x roller kit
Introduction
Step 1: Remove the tray
Step 2: Remove the pickup and feed roller assembly
Step 3: Remove the separation roller assembly
Step 4: Unpack the replacement assemblies
Step 5: Install the separation roller assembly
Step 6: Install the pickup and feed roller assembly
Step 7: Install the tray
Removal and replacement: Control panel (M501)
Introduction
Step 1: Remove the control panel (M501)
Step 2: Unpack the replacement assembly
Step 3: Install the control panel (M501)
Field replaceable units (FRUs) / Bench repairable units (BRUs)
Removal and replacement: External panels, covers, and doors
Removal and replacement: Formatter cover
Removal and replacement: Control-panel cover (M527)
Removal and replacement: Top-rear cover (M527)
Removal and replacement: Top-left cover (M527)
Removal and replacement: Document feeder (M527)
Removal and replacement: Cartridge door assembly
Removal and replacement: Rear door assembly
Removal and replacement: Right cover
Removal and replacement: Left cover
Removal and replacement: Stapler door or stapler blank cover (M527)
Removal and replacement: Stapler stationary (inner) cover (M527)
Removal and replacement: Top cover (M527)
Removal and replacement: Top cover (M501/M506)
Removal and replacement: Paper delivery tray (output bin)
Removal and replacement: Sub-scanner assembly (SSA) (M527)
Removal and replacement: Integrated-scanner assembly (ISA) (M527)
Removal and replacement: Internal parts and assemblies
Removal and replacement: Scanner control board (M527)
Removal and replacement: Near field communication printed-circuit assembly (M506x/M527z)
Removal and replacement: Wireless printed-circuit board (WiFI) (M506x)
Removal and replacement: Wireless printed-circuit board (M527z)
Removal and replacement: Fuser
Removal and replacement: Stapler unit (M527c/f/z)
Removal and replacement: Formatter
Removal and replacement: Laser/scanner assembly
Removal and replacement: Formatter case
Removal and replacement: Fan (FM1)
Removal and replacement: Fan (FM2)
Removal and replacement: Fuser power supply (FPS)
Removal and replacement: DC controller
Removal and replacement: High-voltage power supply
Removal and replacement: Low-voltage power supply
Removal and replacement: Trays
Removal and replacement: Tray 2
Introduction
Step 1: Remove the tray
Step 2: Unpack the replacement tray
Step 3: Install the tray
Removal and replacement: Tray 3
Introduction
Step 1: Remove the tray
Step 2: Unpack the replacement tray
Step 3: Install the tray
Removal and replacement: Accessories
550-sheet paper feeder
Removal and replacement: Optional 550-sheet paper feeder
Removal and replacement: Document feeder rollers (M527)
Introduction
Step 1: Remove the document feeder pickup and feed roller assembly
Step 2: Remove the document feeder separation roller assembly
Step 3: Unpack the replacement assemblies
Step 4: Install the document feeder separation roller assembly
Step 5: Install the document feeder pickup and feed roller assembly
Step 6: Reset the firmware counter
Removal and replacement: Fax printed-circuit board (M527c/f/z)
Introduction
Step 1: Remove the formatter cover
Step 2: Remove the fax printed-circuit board (PCA)
Step 3: Unpack the replacement fax PCA
Step 4: Install the fax PCA
Step 5: Install the formatter cover
Install accessory: Internal USB ports (M527)
Introduction
Step 1: Remove the formatter cover
Step 2: Remove the fax (M527c/f/z)
Step3: Unpack the accessory
Step 4: Install the internal USB ports module
Step 5: Install the fax (M527c/f/z)
Step 6: Install the formatter cover
Install accessory: Internal USB ports (M506)
Introduction
Step 1: Remove the formatter cover
Step 2: Unpack the accessory
Step 3: Install the internal USB ports module
Step 4: Install the formatter cover

2) PARTS AND DIAGRAMS
For additional service and support information
Assembly locations
Printer front view (M501/M506)
Printer front view (M527)
Product back view (M501/M506)
Product back view (M527)
Order parts, accessories, and supplies
Ordering
Orderable parts
Supplies and accessories
Customer self-repair kits
Related documentation and software
How to use the parts lists and diagrams
Parts and diagrams: Document feeder and scanner whole units
Parts and diagrams Covers
Covers (M501/M506)
Covers (M527)
Parts and diagrams: Internal assemblies
Internal assemblies (1 of 4)
Internal assemblies (2 of 4)
Internal assemblies (3 of 4)
Internal assemblies (4 of 4)
Parts and diagrams: Accessories
1×550-sheet paper feeder
Alphabetical parts list
Numerical parts list
Index

Number of pages: 1938.