HP LaserJet Managed E50145/MFP E52645/E50045/MFP E52545, Enterprise M506/M507/MFP M527/M528, Pro M501 Service Manual Repair and Service Manual Troubleshooting

Present Service Manual contain: Service Manual Repair and Service Manual Troubleshooting HP LaserJet Managed E50145/MFP E52645/E50045/MFP E52545, Enterprise M506/M507/MFP M527/M528, Pro M501;
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Content for REPAIR MANUAL:
1) RREMOVAL AND REPLACEMENT
Conventions used in this guide
HP service and support
Removal and replacement strategy
Introduction
Considerations during removal and replacement
Electrostatic discharge
Required tools
Fasteners used in this printer
Service approach
Before performing service
After performing service
Print quality test
Removal and replacement procedures
Customer self-repair (CSR) A parts and accessories
Removal and replacement: Toner cartridge
Removal and replacement: Staple cartridge (MFP)
Removal and replacement: embedded Multi-Media Card (eMMC) (all except M501)
Removal and replacement: Hard-disk drive (HDD)
Removal and replacement: Dual in-line memory module (DIMM)
Removal and replacement: Transfer roller
Removal and replacement: Control panel (MFP)
Removal and replacement: Control panel (M506x/E50045x/M507x/E50145x)
Removal and replacement: White backing (MFP)
Removal and replacement: Keyboard assembly (M527c/z, E52545c/z, M528c/z, and E52645c/z)
Field replaceable units (FRUs)
Removal and replacement: External panels, covers, and doors
Removal and replacement: Formatter cover
Removal and replacement: Control panel (M501, 507n/dn, and E50145n/dn)
Removal and replacement: Control-panel cover (MFP)
Removal and replacement: Top-left cover (MFP)
Removal and replacement: Top-rear cover (MFP)
Removal and replacement: Document feeder (MFP)
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/E52545/M528/E52645)
Removal and replacement: Stapler stationary (inner) cover (M527/E52545/M528/E52645)
Removal and replacement: Top cover (MFP)
Removal and replacement: Top cover (SFP)
Removal and replacement: Paper delivery tray (output bin)
Removal and replacement: Sub-scanner assembly (SSA) (MFP)
Removal and replacement: Internal parts and assemblies
Removal and replacement: Scanner control board (MFP)
Removal and replacement: Near field communication printed-circuit assembly (M527z/E52545z)
Removal and replacement: Wireless printed-circuit board (WiFi) (M506x/E50045x)
Removal and replacement: Wireless printed-circuit board (WiFi) (M507x/E50145x)
Removal and replacement: Wireless printed-circuit board (M527z/E52545z/M528z/E52645z)
Removal and replacement: Fuser
Removal and replacement: Stapler unit (M527c/f/z, E52545c/z/f, M528c/f/z, and E52645c/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
Remove and replacement: Trays
Removal and replacement: Tray 2
Removal and replacement: Tray 3
Remove and replacement: Accessories
Removal and replacement: 550-sheet paper feeder
Removal and replacement: Document feeder rollers (MFP)
Removal and replacement: Fax printed-circuit board (M527c/f/z, E52545c/f/z, M528c/f/z, and E52645c/f/z)
Install accessory: Internal USB ports (MFP)
Install accessory: Internal USB ports (M506/E50045)
Install accessory: Internal USB ports (M507/E50145)
Install accessory: Trusted platform module (TPM)

2) PARTS AND DIAGRAMS
HP service and support
Order parts by authorized service providers
Ordering
Orderable parts
Supplies and accessories
Customer self-repair kits
HP service and support
Assembly locations
Printer front view (SFP)
Printer front view (MFP)
Printer back view (SFP)
Printer back view (MFP)
How to use the parts lists and diagrams
Parts and diagrams: Document feeder and scanner whole units
Parts and diagrams: Covers (M501/M506/E50045/M507/E50145)
Parts and diagrams: Covers (M527/E52545/M528/E52645)
Parts and diagrams: Internal assemblies (1 of 4)
Parts and diagrams: Internal assemblies (2 of 4)
Parts and diagrams: Internal assemblies (3 of 4)
Parts and diagrams: Internal assemblies (4 of 4)
Parts and diagrams: 1×550-sheet paper feeder
Alphabetical parts list
Numerical parts list
Index

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Content for TROUBLESHOOTING MANUAL:
1) THEORY OF OPERATIONS
Conventions used in this guide
HP service and support
Basic operation
Sequence of operation
Formatter-control system
Sleep mode (all except M501)
Sleep delay (M501)
Auto On / Auto Off mode (M501)
Printer job language (PJL)
Printer management language (PML)
Control panel
Easy-access USB port (all except M501)
Wireless (wireless models only)
Low end data model (LEDM) overview (M501)
Advanced control language (ACL) overview (M501)
Near field communication (NFC models only)
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
Photo interrupter sensors
Sensors
LEDs
Low-voltage power supply (LVPS)
Low-voltage power supply voltages description
Over-current/over-voltage protection
Sleep mode operation (all except M501)
Low-voltage power supply failure detection (all except M501)
Safety
Low-voltage power supply functions
High-voltage power supply
Fuser bias
High-voltage power supply circuits
Fuser control
Fuser circuits
Fuser control functions
Fuser heater protection
Fuser unit life detection (all except M501)
Fuser identification (all except M501)
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
Dynamic security enabled printers in this guide
Dynamic security
Toner seal
Toner level and cartridge life detection
JetIntelligence
Authentication
Anti-theft
Paper handling 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/E52545/M528/E52645)
Document feeder system (M527/E52545/M528/E52645)
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

2) SOLVE PROBLEMS
HP service and support
Solve problems checklist (M501)
Use the solve problems checklist (M501)
Print the menu map (M501)
Print the service page (includes the event log) (M501)
Solve problems checklist (all except M501)
Use the solve problems checklist
Print the Settings menu map
Print the settings menu map from a touchscreen control panel
Print the settings menu map from a LCD control panel
Print current settings pages
Print the current settings page from a touchscreen control panel
Print the current settings page from a LCD control panel
Pre-boot menu options
Open the Pre-boot menu from a touchscreen control panel
Open the Pre-boot menu from a LCD control panel
Cold reset using the Pre-boot menu from a touchscreen control panel
Cold reset using the Pre-boot menu from a LCD control panel
Remote Admin (all except M501)
Required software and network connection
Connect a remote connection
Disconnect a remote connection
Print the event log
Print the event log from the Administration menu (FutureSmart 3) or Support Tools menu (FutureSmart 4) from a touchscreen control panel
Print the event log from the Administration menu (FutureSmart 3) or Support Tools menu (FutureSmart 4) from a LCD control panel
Print the event log from the Service menu from a touchscreen control panel
Print the event log from the Service menu from a LCD control panel
Clear the event log from a touchscreen control panel
Clear the event log from a LCD control panel
Troubleshooting process
Determine the problem source
Pre-troubleshooting checklist
Troubleshooting flowchart flowchart flowchart
Power subsystem
Power-on checks
Power-on troubleshooting overview
Control panel checks (M501)
Control panel checks (all except M501)
Control panel diagnostics (M506x/M507x and M527/E52545/M528/E52645)
Touchscreen diagnostic mode (M506x, M527/E52545/M528/E52645)
Touchscreen diagnostic mode (M507x and E50145dn)
Control panel system diagnostics (M506x/M507x, M527/E52545/M528/E52645)
Control panel diagnostic flowcharts flowcharts flowcharts (M506x/M507x, M527/E52545/M528/E52645)
Tools for troubleshooting
Individual component diagnostics
LED diagnostics (M501)
Network port LEDs (M501)
M501 control panel LEDs
LED diagnostics (all except M501)
Understand lights on the formatter
Heartbeat LED
HP Jetdirect LEDs
Engine diagnostics
Engine test button
Defeating interlocks
Disable cartridge check (all except M501)
Paper path and sensor diagnostic tests (all except M501)
Paper path test (all except M501)
Paper path sensors test (all except M501)
Manual sensor tests (all except M501)
Tray/bin manual sensor test (all except M501)
Print/stop test (all except M501)
Access the print/stop test from a touchscreen control panel
Access the print/stop test from a LCD control panel
Common print stop test timing millisecond (ms) stops
Component tests (all except M501)
Individual component diagnostics (special-mode test; all except M501)
Scanner tests (M527/E52545/M528/E52645)
Scanner tests (M527/E52545/M528/E52645)
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
Print the configuration page from a LCD control panel (M501)
Print the configuration page from a LCD control panel (M506/E50045/M507/E50145)
Print the configuration page from a touchscreen control panel (M527/E52545/M528/E52645)
HP embedded Jetdirect page (all except M501)
Wireless page (all except M501)
Finding important information on the configuration pages
Print a fuser test page (all except M501)
Print a fuser test page from a touchscreen control panel
Print a fuser test page from a LCD control panel
Advanced configuration with HP Embedded Web Server (EWS) and HP Device Toolbox (Windows) (M501)
Open the HP Embedded Web Server (EWS) from the Start menu
Open the HP Embedded Web Server (EWS) from a Web browser
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 specific menus (M501)
Apps (M501)
Jobs (M501)
Supplies Status (M501)
Control panel menus (all except M501)
Reports menu
Settings menu
General menu (all except M501)
Print menu (M506/E50045/M507/E50145) and Copy/Print menu (M527/E52545/M528/E52645)
Scan/Digital Send Settings menu (M527/E52545/M528/E52645)
Fax menu (M527/E52545/M528/E52645)
Manage Supplies menu
Networking menu
Support Tools menu
Maintenance menu (all except M501)
Troubleshooting menu
Error code and control panel message troubleshooting overview
Error codes
How to search for printer documentation
Resolve print-quality problems
Introduction
Resolving print quality problems
Print from a different different software program
Check the paper-type setting for the print job
Check the paper type setting on the printer
Check the paper type setting (Windows)
Check the paper type setting (macOS)
Check toner-cartridge status
Step one: Print the Supplies Status Page
Step two: Check supplies status
Print a cleaning page
Visually inspect the toner cartridge or cartridges
Check paper and the printing environment
Step one: Use paper that meets HP specifications
Step two: Check the environment
Step three: Set the individual tray alignment
Try a different different print driver
Troubleshoot image defects
Print quality troubleshooting guide
Image defects table
Product specific 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
Print the cleaning page from a LCD control panel (M501)
Print the cleaning page from a LCD control panel (M506/E50045/M507/E50145)
Print the cleaning page from a touchscreen control panel (M527/E52545/M528/E52645)
Enable and configure configure auto cleaning (M527/E52545/M528/E52645)
Check the scanner glass for dirt and smudges (M527/E52545/M528/E52645)
Clean the pickup rollers and separation pad in the document feeder (M527/E52545/M528/E52645)
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/E52545/M528/E52645)
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 (all except M501)
Change jam recovery from a touchscreen control panel
Change jam recovery from a LCD control panel
Solve performance problems
Factors affecting print performance
Print speeds
The printer does not print or it prints slowly
The printer does not print
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 (M501)
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 (all except M501)
Service menu (all except M501)
Open the service menu from a touchscreen control panel
Open the service menu from a LCD control panel
Service menu items
Printer resets (all except M501)
Restore factory-set defaults (all except M501)
Restore factory-set defaults from a touchscreen control panel
Restore factory-set defaults from a LCD control panel
Restore the service ID (all except M501)
Restore the service ID
Convert the service ID to an actual date
Printer cold reset (all except M501)
Cold reset using the Pre-boot menu from a touchscreen control panel
Cold reset using the Pre-boot menu from a LCD control panel
Format Disk and Partial Clean functions (all except M501)
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 (all except M501)
Determine the installed revision of firmware (all except M501)
Print the configuration page from a touchscreen control panel
Print the configuration page from a LCD control panel
Perform a firmware firmware upgrade (all except M501)
HP Embedded Web Server (all except M501)
USB flash drive (Pre-boot menu) (all except M501)
USB flash drive firmware firmware (Pre-boot menu) update from a touchscreen control panel
USB flash drive firmware firmware (Pre-boot menu) update from a LCD control panel
USB flash drive (control panel menu) (all except M501)
USB flash drive firmware firmware (control panel menu) update from a touchscreen control panel
USB flash drive firmware firmware (control panel menu) update from a LCD control panel
Solve fax or email problems

Appendix A: Printer specifications
Printer dimensions
HP LaserJet Pro M501 dimensions
HP LaserJet Enterprise M506/E50045/M507/E50145 dimensions
HP LaserJet Enterprise MFP M527/E52545/M528/E52645 dimensions
Printer space requirements
Power consumption, electrical specifications and acoustic emissions
Operating-environment range
Certificate Certificate Certificate of Volatility

Index