HP LaserJet M751 User's Guide
www.hp.com/videos/LaserJet
www.hp.com/support/colorljM751
Color LaserJet Enterprise M751
User Guide
HP Color LaserJet Enterprise M751
User Guide
Copyright and License
Trademark Credits
© Copyright 2019 HP Development Company,
L.P.
Reproduction, adaptation, or translation without
prior written permission is prohibited, except as
allowed under the copyright laws.
The information contained herein is subject to
change without notice.
The only warranties for HP products and
services are set forth in the express warranty
statements accompanying such products and
services. Nothing herein should be construed as
constituting an additional warranty. HP shall not
be liable for technical or editorial errors or
omissions contained herein.
Edition 1, 4/2019
Adobe®, Adobe Photoshop®, Acrobat®, and
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®
are trademarks of Adobe Systems
Incorporated.
Apple and the Apple logo are trademarks of
Apple Inc., registered in the U.S. and other
countries.
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the U.S. and other countries.
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UNIX® is a registered trademark of The Open
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Table of contents
1 Printer overview ........................................................................................................................................................................................ 1
Warning icons ............................................................................................................................................................................ 2
Potential shock hazard ............................................................................................................................................................ 3
Printer views .............................................................................................................................................................................. 4
Printer front view ................................................................................................................................................. 4
Printer back view .................................................................................................................................................. 5
Interface ports ...................................................................................................................................................... 6
Control-panel view ............................................................................................................................................... 7
Printer specications ................................................................................................................................................................ 9
Technical specications ....................................................................................................................................... 9
Supported operating systems ......................................................................................................................... 11
Mobile printing solutions .................................................................................................................................. 12
Printer dimensions ............................................................................................................................................ 14
Power consumption, electrical specications, and acoustic emissions .................................................... 16
Operating-environment range ........................................................................................................................ 16
Printer hardware setup and software installation ............................................................................................................ 17
2 Paper trays .............................................................................................................................................................................................. 19
Introduction ............................................................................................................................................................................. 20
Load paper to Tray 1 (multipurpose tray) .......................................................................................................................... 20
Introduction ........................................................................................................................................................ 20
Tray 1 paper orientation ................................................................................................................................... 22
Use alternative letterhead mode .................................................................................................................... 26
Enable Alternative Letterhead Mode by using the printer control-panel menus ............... 26
Load paper to Tray 2 ............................................................................................................................................................. 27
Introduction ........................................................................................................................................................ 27
Tray 2 paper orientation ................................................................................................................................... 29
Use Alternative Letterhead Mode ................................................................................................................... 32
Enable Alternative Letterhead Mode by using the printer control-panel menus ............... 32
Load paper to the 550-sheet paper tray ........................................................................................................................... 33
Introduction ........................................................................................................................................................ 33
550-sheet paper tray paper orientation ....................................................................................................... 36
ENWW iii
Use alternative letterhead mode .................................................................................................................... 39
Enable Alternative Letterhead Mode by using the printer control-panel menus ............... 39
Load paper to the 2 x 550-sheet paper trays ................................................................................................................... 40
Introduction ........................................................................................................................................................ 40
2 x 550-sheet paper tray paper orientation ................................................................................................. 43
Use alternative letterhead mode .................................................................................................................... 46
Enable Alternative Letterhead Mode by using the printer control-panel menus ............... 46
Load paper to the 2,700-sheet high-capacity input paper trays ................................................................................... 47
Introduction ........................................................................................................................................................ 47
2,700-sheet HCI paper tray paper orientation ............................................................................................. 49
Use alternative letterhead mode .................................................................................................................... 51
Enable Alternative Letterhead Mode by using the printer control-panel menus ............... 51
Load and print envelopes ..................................................................................................................................................... 52
Introduction ........................................................................................................................................................ 52
Print envelopes .................................................................................................................................................. 52
Envelope orientation ......................................................................................................................................... 52
Load and print labels ............................................................................................................................................................. 54
Introduction ........................................................................................................................................................ 54
Manually feed labels ......................................................................................................................................... 54
Label orientation ............................................................................................................................................... 55
3 Supplies, accessories, and parts .......................................................................................................................................................... 57
Order supplies, accessories, and parts ............................................................................................................................... 58
Ordering .............................................................................................................................................................. 58
Supplies and accessories ................................................................................................................................. 58
Maintenance/long-life consumables .............................................................................................................. 59
Customer self-repair parts ............................................................................................................................... 60
Congure the HP toner-cartridge-protection supply settings ........................................................................................ 61
Introduction ........................................................................................................................................................ 61
Enable or disable the Cartridge Policy feature ............................................................................................. 61
Use the printer control panel to enable the Cartridge Policy feature ................................... 61
Use the printer control panel to disable the Cartridge Policy feature .................................. 61
Use the HP Embedded Web Server (EWS) to enable the Cartridge Policy feature ............. 62
Use the HP Embedded Web Server (EWS) to disable the Cartridge Policy feature ............ 62
Troubleshoot Cartridge Policy control panel error messages ............................................... 63
Enable or disable the Cartridge Protection feature ...................................................................................... 63
Use the printer control panel to enable the Cartridge Protection feature ........................... 63
Use the printer control panel to disable the Cartridge Protection feature .......................... 63
Use the HP Embedded Web Server (EWS) to enable the Cartridge Protection feature ..... 63
Use the HP Embedded Web Server (EWS) to disable the Cartridge Protection feature .... 64
Troubleshoot Cartridge Protection control panel error messages ....................................... 65
iv ENWW
Replace the toner cartridges ................................................................................................................................................ 66
Toner-cartridge information ............................................................................................................................ 66
Remove and replace the cartridges ................................................................................................................ 67
Replace the imaging drums .................................................................................................................................................. 70
Imaging drum information ............................................................................................................................... 70
Remove and replace the imaging drums ....................................................................................................... 71
Replace the toner-collection unit ........................................................................................................................................ 73
Toner-collection unit information ................................................................................................................... 73
Remove and replace the toner-collection unit .............................................................................................. 73
4 Print .......................................................................................................................................................................................................... 77
Print tasks (Windows) ............................................................................................................................................................ 78
How to print (Windows) .................................................................................................................................... 78
Automatically print on both sides (Windows) ............................................................................................... 78
Manually print on both sides (Windows) ........................................................................................................ 79
Print multiple pages per sheet (Windows) .................................................................................................... 79
Select the paper type (Windows) .................................................................................................................... 80
Additional print tasks ........................................................................................................................................ 81
Print tasks (macOS) ............................................................................................................................................................... 82
How to print (macOS) ........................................................................................................................................ 82
Automatically print on both sides (macOS) ................................................................................................... 82
Manually print on both sides (macOS) ........................................................................................................... 82
Print multiple pages per sheet (macOS) ........................................................................................................ 83
Select the paper type (macOS) ........................................................................................................................ 83
Additional print tasks ........................................................................................................................................ 83
Store print jobs on the printer to print later or print privately ........................................................................................ 84
Introduction ........................................................................................................................................................ 84
Create a stored job (Windows) ......................................................................................................................... 84
Create a stored job (macOS) ............................................................................................................................ 85
Print a stored job ............................................................................................................................................... 86
Delete a stored job ............................................................................................................................................ 86
Delete a job that is stored on the printer .................................................................................. 86
Change the job storage limit ....................................................................................................... 86
Information sent to printer for Job Accounting purposes ........................................................................... 87
Mobile printing ........................................................................................................................................................................ 88
Introduction ........................................................................................................................................................ 88
Wi-Fi, Wi-Fi Direct Print, NFC, and BLE printing ............................................................................................ 88
HP ePrint via email ............................................................................................................................................ 89
AirPrint ................................................................................................................................................................. 89
Android embedded printing ............................................................................................................................. 90
Print from a USB ash drive ................................................................................................................................................. 91
ENWW v
Introduction ........................................................................................................................................................ 91
Enable the USB port for printing ..................................................................................................................... 91
Print USB documents ........................................................................................................................................ 92
Print using high-speed USB 2.0 port (wired) ..................................................................................................................... 93
Enable the high-speed USB port for printing ................................................................................................ 93
5 Manage the printer ................................................................................................................................................................................. 95
Advanced conguration with the HP Embedded Web Server (EWS) ............................................................................. 96
Introduction ........................................................................................................................................................ 96
How to access the HP Embedded Web Server (EWS) .................................................................................. 96
HP Embedded Web Server features ............................................................................................................... 97
Information tab ............................................................................................................................. 97
General tab .................................................................................................................................... 98
Print tab .......................................................................................................................................... 98
Supplies tab ................................................................................................................................... 99
Troubleshooting tab ..................................................................................................................... 99
Security tab ................................................................................................................................. 100
HP Web Services tab .................................................................................................................. 100
Networking tab ........................................................................................................................... 100
Other Links list ............................................................................................................................ 102
Congure IP network settings ........................................................................................................................................... 103
Printer sharing disclaimer .............................................................................................................................. 103
View or change network settings ................................................................................................................. 103
Rename the printer on a network ................................................................................................................ 103
Manually congure IPv4 TCP/IP parameters from the control panel ..................................................... 103
Manually congure IPv6 TCP/IP parameters from the control panel ..................................................... 104
Link speed and duplex settings .................................................................................................................... 104
Printer security features ..................................................................................................................................................... 106
Introduction ...................................................................................................................................................... 106
Security statements ....................................................................................................................................... 106
Assign or change the system password using the HP Embedded Web Server .................................... 106
IP Security ......................................................................................................................................................... 107
Encryption support: HP High Performance Secure Hard Disks ................................................................ 107
Lock the formatter .......................................................................................................................................... 107
Energy-conservation settings ........................................................................................................................................... 108
Introduction ...................................................................................................................................................... 108
Set the idle settings ........................................................................................................................................ 108
Set the sleep timer and congure the printer to use 1 watt or less of power ...................................... 108
Set the sleep schedule ................................................................................................................................... 109
HP Web Jetadmin ................................................................................................................................................................. 110
Software and rmware updates ........................................................................................................................................ 111
vi ENWW
6 Solve problems ..................................................................................................................................................................................... 113
Customer support ................................................................................................................................................................ 114
Control panel help system ................................................................................................................................................. 115
Reset factory settings ......................................................................................................................................................... 116
Introduction ...................................................................................................................................................... 116
Method one: Restore factory settings from the printer control panel ................................................... 116
Method two: Restore factory settings from the HP Embedded Web Server (network-connected
printers only) .................................................................................................................................................... 116
A “Cartridge is low” or “Cartridge is very low” message displays on the printer control panel ............................... 117
Change the “Very Low” settings ................................................................................................................... 117
Order supplies ............................................................................................................................. 117
Printer does not pick up paper or misfeeds .................................................................................................................... 118
Introduction ...................................................................................................................................................... 118
The printer does not pick up paper .............................................................................................................. 118
The printer picks up multiple sheets of paper ............................................................................................ 120
Clear paper jams .................................................................................................................................................................. 124
Introduction ...................................................................................................................................................... 124
Paper jam locations ........................................................................................................................................ 124
Auto-navigation for clearing paper jams ..................................................................................................... 125
Experiencing frequent or recurring paper jams? ....................................................................................... 125
Clear paper jams in Tray 1 (13.A1) ............................................................................................................... 126
Clear paper jams in Tray 2 (13.A2) ............................................................................................................... 130
Clear jams in the fuser (13.B9, 13.B2, 13.FF) ............................................................................................. 135
Clear paper jams in the output bin (13.E1) ................................................................................................. 139
Clear jams in the duplex area (13.D3) .......................................................................................................... 139
Clear paper jams in the 550-sheet trays (13.A3, 13.A4) .......................................................................... 142
Clear paper jams in the 2 x 550 paper trays (13.A4, 13.A5) .................................................................... 149
Clear paper jams in the 2,700-sheet high-capacity input paper trays (13.A3, 13.A4, 13.A5,
13.A7) ................................................................................................................................................................ 155
Resolve print-quality problems ......................................................................................................................................... 161
Introduction ...................................................................................................................................................... 161
Troubleshoot print quality ............................................................................................................................. 161
Update the printer rmware ..................................................................................................... 161
Print from a dierent software program ................................................................................ 161
Check the paper-type setting for the print job ...................................................................... 161
Check the paper type setting on the printer ..................................................... 162
Check the paper type setting (Windows) ........................................................... 162
Check the paper type setting (macOS) ............................................................... 162
Check toner-cartridge status .................................................................................................... 162
Print a cleaning page .................................................................................................................. 163
Visually inspect the toner cartridge or cartridges ................................................................. 163
ENWW vii
Check paper and the printing environment ............................................................................ 164
Step one: Use paper that meets HP specications .......................................... 164
Step two: Check the environment ....................................................................... 164
Step three: Set the individual tray alignment .................................................... 164
Try a dierent print driver ......................................................................................................... 165
Troubleshoot color quality ............................................................................................................................. 165
Calibrate the printer to align the colors .................................................................................. 165
Troubleshoot image defects ......................................................................................................................... 166
Solve wired network problems .......................................................................................................................................... 175
Introduction ...................................................................................................................................................... 175
Poor physical connection ............................................................................................................................... 175
The computer is using the incorrect IP address for the printer ............................................................... 175
The computer is unable to communicate with the printer ....................................................................... 176
The printer is using incorrect link and duplex settings for the network ................................................. 176
New software programs might be causing compatibility problems ....................................................... 176
The computer or workstation might be set up incorrectly ....................................................................... 176
The printer is disabled, or other network settings are incorrect ............................................................. 176
Index ........................................................................................................................................................................................................... 177
viii ENWW
1 Printer overview
●
Warning icons
●
Potential shock hazard
●
Printer views
●
Printer specications
●
Printer hardware setup and software installation
For more information
The following information is correct at the time of publication.
For video assistance, see www.hp.com/videos/LaserJet.
For current information, see www.hp.com/support/colorljM751.
HP's all-inclusive help for the printer includes the following information:
● Install and congure
● Learn and use
● Solve problems
● Download software and rmware updates
● Join support forums
● Find warranty and regulatory information
ENWW 1
Warning icons
Warning icon denitions: The following warning icons may appear on HP products. Use appropriate caution
where applicable.
●
Caution: Electric shock
●
Caution: Hot surface
●
Caution: Keep body parts away from moving parts
●
Caution: Sharp edge in close proximity
2 Chapter 1 Printer overview ENWW
Potential shock hazard
Always follow basic safety precautions when using this product to reduce risk of injury from re or electric shock.
● Read and understand all instructions in the user guide.
● Observe all warnings and instructions marked on the product.
● Use only a grounded electrical outlet when connecting the product to a power source. If you do not know
whether the outlet is grounded, check with a qualied electrician.
● Do not touch the contacts on any of the sockets on the product. Replace damaged cords immediately.
● Unplug this product from wall outlets before cleaning.
● Do not install or use this product near water or when you are wet.
● Install the product securely on a stable surface.
● Install the product in a protected location where no one can step on or trip over the power cord.
ENWW Potential shock hazard 3
Printer views
1
2
4
5
6
8
7
9
10
3
●
Printer front view
●
Printer back view
●
Interface ports
●
Control-panel view
Printer front view
1 Output bin
2 Control panel with color graphical display and keypad
3 Hardware integration pocket for connecting accessory and third-party devices
4 Easy-access USB port
Insert a USB ash drive for printing without a computer or to update the printer rmware.
NOTE: An administrator must enable this port before use.
5 Right door (access to the fuser and to clear jams)
6 Tray 1
7 On/o button
8 Model name
9 Tray 2
10 Front door (access to the toner cartridges and imaging drums)
4 Chapter 1 Printer overview ENWW
Printer back view
1
2
4
5
3
6
1 Formatter cover
2 Slot for a cable-type security lock
3 Formatter (contains the interface ports)
4 Left door (access to the toner-collection unit)
NOTE: The front door must be used in order to access the toner-collection unit.
5 Power connection
6 Serial number and product number label
ENWW Printer views 5
Interface ports
2
1
3
1 USB ports for connecting external USB devices (these ports might be covered)
NOTE: For easy-access USB printing, use the USB port near the control panel.
2 Local area network (LAN) Ethernet 10/100/1000 network port
3 Hi-Speed USB 2.0 printing port
6 Chapter 1 Printer overview ENWW
Control-panel view
1
2
3
4
5
6
7
8
9
10
11
12
15
16
17
18
19
14
13
Use the control panel to obtain printer and job status information and to congure the printer. The display on this
control panel is not a touchscreen. Use the arrow buttons and the OK button to navigate and select menu items.
1 Reset icon Select the Reset icon to clear changes, release the printer from a paused state, display hidden errors, and
2 Sign In or Sign Out
3 Applications area Select any of the icons to open the application.
4
icon
Home button
restore the default settings (including the language and keyboard layout).
Select the Sign In icon to open the Sign In screen.
Select the Sign Out icon to sign out of the printer. The printer restores all options to the default settings.
NOTE: The available applications vary by printer. The administrator can congure which applications
appear and the order in which they appear.
Returns to the Home screen.
ENWW Printer views 7
5
Information
button
Press the information button to access several types of printer information. Select the items on the screen
for the following information:
● Display Language: Change the language setting for the current user session.
● Sleep Mode: Put the printer into low-power mode.
● Wi-Fi Direct: View information for how to connect directly to the printer using a phone, tablet, or other
device (only when an optional wireless accessory is installed).
● Wireless: View or change wireless connection settings (only when an optional wireless accessory is
installed).
● Ethernet: View or change Ethernet connection settings.
● HP Web Services: View information to connect and print to the printer using HP Web Services.
6
Help button
7
Back button
8 Up arrow button Navigates to the previous item or widget in a vertical layout.
9
Message Center
button
10
Left arrow button
11 OK button Accepts the selected value for an item, activates a focused button, opens the keyboard to edit the focused
12
Right arrow
button
13
Start button
14 Down arrow
button
15
Cancel button
16
Clear button
17 Sign In or Sign Out
button
Provides a list of help topics or information about a topic when using the Home screen, an app, an option, or
a feature.
Backs up one level in the menu tree.
Displays the Message Center.
Navigates to the previous item, widget, or level in a menu tree (but does not exit the app), or decreases the
value of numeric items.
text eld, or performs similar selection actions.
Navigates to the next item, widget, or level in a menu tree, or increases the value of numeric items.
Starts the print job.
Navigates to the next item or widget in a vertical layout.
Pauses the printer and opens Active Jobs. From the Active Jobs screen, the user can cancel the job or
resume printing.
Clears the entire entry in an input eld.
Press the Sign In button to open the Sign In screen.
Press the Sign Out button to sign out of the printer. The printer restores all options to the default settings.
18 Numeric keypad Enters numeric values.
19 Home-screen page
indicator
Indicates the number of pages on the Home screen or in the Home screen folder. The current page is
highlighted. Use the arrow buttons to scroll between pages.
8 Chapter 1 Printer overview ENWW
Printer specications
IMPORTANT: The following specications are correct at the time of publication, but they are subject to change.
For current information, see www.hp.com/support/colorljM751.
●
Technical specications
●
Supported operating systems
●
Mobile printing solutions
●
Printer dimensions
●
Power consumption, electrical specications, and acoustic emissions
●
Operating-environment range
Technical specications
Model name M751n M751dn
Product number T3U43A T3U44A
Paper handling Tray 1 (100-sheet capacity) Included Included
Tray 2 (550-sheet capacity) Included Included
550-sheet paper tray
NOTE: The M751n and M751dn models
accept up to two optional 550-sheet trays.
2 x 550-sheet paper tray and stand
NOTE: The M751n and M751dn models
accept up to two optional 550-sheet trays
that may be installed on top of the stand.
2,700-sheet high-capacity input (HCI) paper
tray and stand
NOTE: The M751n and M751dn models
accept up to two optional 550-sheet trays
that may be installed on top of the stand.
Stand
NOTE: The M751n and M751dn models
accept up to two optional 550-sheet trays
that may be installed on top of the stand.
Automatic duplex printing Not available Included
Connectivity 10/100/1000 Ethernet LAN connection with
IPv4 and IPv6
Hi-Speed USB 2.0 Included Included
Optional Optional
Optional Optional
Optional Optional
Optional Optional
Included Included
Easy-access USB port for printing without a
computer and upgrading the rmware
Hardware Integration Pocket for connecting
accessory and third-party devices
Included Included
Included Included
ENWW Printer specications 9
Model name M751n M751dn
Product number T3U43A T3U44A
HP Internal USB Ports Optional Optional
HP Jetdirect 2900nw Print Server accessory
for wireless connectivity
HP Jetdirect 3100w BLE/NFC/Wireless
Accessory for printing from mobile devices
Memory 1.5 GB base memory
NOTE: The base memory is expandable to
2.5 GB by adding a SODIMM memory
module.
Mass storage 16 GB embedded Multi-Media Controller
(eMMC)
Security HP Trusted Platform Module for encrypting
all data that passes through the printer
Control-panel display and input 2.7-inch color graphics display with 10-key Included Included
Print Prints 40 pages per minute (ppm) on Letter
and A4-size paper
Easy-access USB printing (no computer
required)
Store jobs in the printer memory to print
later or print privately
Optional Optional
Optional Optional
Included Included
Included Included
Included Included
Included Included
Included Included
Included Included
10 Chapter 1 Printer overview ENWW
Supported operating systems
Linux: For information and print drivers for Linux, go to www.hp.com/go/linuxprinting.
UNIX: For information and print drivers for UNIX®, go to www.hp.com/go/unixmodelscripts.
The following information applies to the printer-specic Windows HP PCL 6 print drivers, HP print drivers for
macOS, and to the software installer.
Windows: Download HP Easy Start from 123.hp.com/LaserJet to install the HP print driver. Or, go to the printersupport website for this printer: www.hp.com/support/colorljM751 to download the print driver or the software
installer to install the HP print driver.
macOS: Mac computers are supported with this printer. Download HP Easy Start either from 123.hp.com/
LaserJet or from the Printer Support page, and then use HP Easy Start to install the HP print driver.
1. Go to 123.hp.com/LaserJet.
2. Follow the steps provided to download the printer software.
Table 1-1 Supported operating systems and print drivers
Operating system Print driver (for Windows, or the installer on
the web for macOS)
Windows 7, 32-bit and 64-bit The “HP PCL 6” printer-specic print driver is
installed for this operating system as part of
the software installation.
Windows 8, 32-bit and 64-bit The “HP PCL 6” printer-specic print driver is
installed for this operating system as part of
the software installation.
Windows 8.1, 32-bit and 64-bit The “HP PCL-6” V4 printer-specic print
driver is installed for this operating system
as part of the software installation.
Windows 10, 32-bit and 64-bit The “HP PCL-6” V4 printer-specic print
driver is installed for this operating system
as part of the software installation.
Windows Server 2008 R2, SP 1, 64-bit The PCL 6 printer-specic print driver is
available for download from the printersupport website. Download the driver, and
then use the Microsoft Add Printer tool to
install it.
Windows Server 2012, 64-bit The PCL 6 printer-specic print driver is
available for download from the printersupport website. Download the driver, and
then use the Microsoft Add Printer tool to
install it.
Notes
Windows 8 RT support is provided through
Microsoft IN OS Version 4, 32- bit driver.
Windows 8.1 RT support is provided through
Microsoft IN OS Version 4, 32- bit driver.
Windows Server 2012 R2, 64-bit The PCL 6 printer-specic print driver is
available for download from the printersupport website. Download the driver, and
then use the Microsoft Add Printer tool to
install it.
ENWW Printer specications 11
Table 1-1 Supported operating systems and print drivers (continued)
Operating system Print driver (for Windows, or the installer on
the web for macOS)
Windows Server 2016, 64-bit The PCL 6 printer-specic print driver is
available for download from the printersupport website. Download the driver, and
then use the Microsoft Add Printer tool to
install it.
macOS 10.12 Sierra, macOS 10.13 High
Sierra
Download HP Easy Start from 123.hp.com/
LaserJet, and then use it to install the print
driver.
Notes
NOTE: Supported operating systems can change.
NOTE: For a current list of supported operating systems and HP’s all-inclusive help for the printer, go to
www.hp.com/support/colorljM751.
NOTE: For details on client and server operating systems and for HP UPD driver support for this printer, go to
www.hp.com/go/upd. Under Additional information, click Specications.
Table 1-2 Minimum system requirements
Windows macOS
● Internet connection
● Internet connection
● Dedicated USB 1.1 or 2.0 connection or a network connection
● 2 GB of available hard-disk space
● 1 GB RAM (32-bit) or 2 GB RAM (64-bit)
NOTE: The Windows software installer installs the HP Smart Device Agent Base service. The le size is less than
100 kb. Its only function is to check for printers connected via USB hourly. No data is collected. If a USB printer is
found, it then tries to locate a JetAdvantage Management Connector (JAMc) instance on the network. If a JAMc is
found, the HP Smart Device Agent Base is securely upgraded to a full Smart Device Agent from JAMc, which will
then allow printed pages to be accounted for in a Managed Print Services (MPS) account. The driver-only web
packs downloaded from www.hp.com for the printer and installed through the Add Printer wizard do not install
this service.
To uninstall the service, open the Control Panel, select Programs or Programs and Features, and then select Add/
Remove Programs or Uninstall a Program to remove the service. The le name is HPSmartDeviceAgentBase.
Mobile printing solutions
HP oers multiple mobile printing solutions to enable easy printing to an HP printer from a laptop, tablet,
smartphone, or other mobile device. To see the full list and to determine the best choice, go to www.hp.com/go/
MobilePrinting.
NOTE: Update the printer rmware to ensure all mobile printing capabilities are supported.
● Dedicated USB 1.1 or 2.0 connection or a network connection
● 1.5 GB of available hard-disk space
12 Chapter 1 Printer overview ENWW
● Wi-Fi Direct (wireless models only, with HP Jetdirect 3100w BLE/NFC/Wireless accessory installed)
● HP ePrint via email (Requires HP Web Services to be enabled and the printer to be registered with
HP Connected)
● HP Smart app
● Google Cloud Print
● AirPrint
● Android Printing
● HP Roam
ENWW Printer specications 13
Printer dimensions
Table 1-3 Dimensions for the printer
Printer fully closed Printer fully opened
Height 398.5 mm (15.7 in) 442.5 mm (17.4 in)
Depth 589 mm (23.2 in) 992 mm (39 in)
Width 556 mm (21.9 in) 1,051 mm (41.4 in)
Weight 45.1 kg (99.4. lb)
Table 1-4 Dimensions for the 550-sheet paper tray
Height 150 mm (5.9 in)
Depth Tray closed: 584 mm (23 in)
Width Door closed: 556 mm (21.9 in)
Weight 10.2 kg (22.5 lb)
Tray opened: 999 mm (39.3 in)
Door opened: 640 mm (25.2 in)
Table 1-5 Dimensions for the printer with one 550-sheet paper tray
Printer fully closed Printer fully opened
Height 524.5 mm (20.6 in) 568.5 mm (22.4 in)
Depth 589 mm (23.2 in) 1,004 mm (39.5 in)
Width 556 mm (21.9 in) 1,051 mm (41.4 in)
Weight 55.3 kg (121.9 lb)
Table 1-6 Dimensions for the 2 x 550-sheet paper tray and stand
Height 347 mm (13.7 in)
1
Depth
1
Width
1
Weight
1
Does not include stability feet.
Tray closed: 659 mm (25.9 in)
Tray open: 1,074 mm (42.3 in)
Door closed: 556 mm (21.9 in)
Door open: 771 mm (30.4 in)
22.9 kg (50.5lb)
14 Chapter 1 Printer overview ENWW
Table 1-7 Dimensions for the printer with the 2 x 550-sheet paper tray and stand
Printer and accessories fully closed Printer and accessories fully opened
Height 722.5 mm (28.4 in) 766.5 mm (30.2 in)
1
Depth
1
Width
Weight
1
Does not include stability feet.
659 mm (25.9 in) 1,074 mm (42.3 in)
556 mm (21.9 in) 1,051 mm (41.4 in)
1
68.0 kg (149.9 lb)
Table 1-8 Dimensions for the high-capacity input paper tray and stand
Height 347 mm (13.7 in)
1
Depth
1
Width
1
Weight
1
Does not include stability feet.
Tray closed: 659 mm (25.9 in)
Tray open: 1,064 mm (41.9 in)
Door closed: 556 mm (21.9 in)
Door open: 771 mm (30.4 in)
28.2 kg (62.2 lb)
Table
1-9 Dimensions for the printer with the high-capacity input paper tray and stand
Printer and accessories fully closed Printer and accessories fully opened
Height 722.5 mm (28.4 in) 766.5 mm (30.2 in)
1
Depth
1
Width
Weight
1
Does not include stability feet.
Table
1-10 Dimensions for the stand
659 mm (25.9 in) 1,064 mm (41.9 in)
556 mm (21.9 in) 1,051 mm (41.4 in)
1
73.3 kg (161.6 lb)
Height 347 mm (13.7 in)
Depth
1
Door closed: 659 mm (25.9 in)
Door opened: 1,185 mm (46.7 in)
Width
1
Door closed: 556 mm (21.9 in)
Door opened: 556 mm (21.9 in)
1
Weight
1
Does not include stability feet.
15.8 kg (34.9 lb)
ENWW Printer specications 15
Table 1-11 Dimensions for the printer with the stand
Printer and accessories fully closed Printer and accessories fully opened
Height 722.5 mm (28.4 in) 766.5 mm (30.2 in)
1
Depth
1
Width
Weight
1
Does not include stability feet.
659 mm (25.9 in) 1,185 mm (46.7 in)
556 mm (21.9 in) 1,051 mm (41.4 in)
1
61.4 kg (135.4 lb)
Power consumption, electrical specications, and acoustic emissions
See www.hp.com/support/colorljM751 for current information.
CAUTION: Power requirements are based on the country/region where the printer is sold. Do not convert
operating voltages. This will damage the printer and void the printer warranty.
Operating-environment range
Table 1-12 Operating-environment specications
Environment Recommended Allowed
Temperature 15° to 27°C (59° to 80.6°F) 10° to 30°C (50° to 86°F)
Relative humidity 30% to 70% relative humidity (RH) 10% to 80% RH
16 Chapter 1 Printer overview ENWW
Printer hardware setup and software installation
For basic setup instructions, see the Hardware Installation Guide that came with the printer. For additional
instructions, go to HP support on the Web.
Go to www.hp.com/support/colorljM751 for HP's all-inclusive help for the printer. Find the following support:
● Install and congure
● Learn and use
●
Solve problems
● Download software and rmware updates
● Join support forums
● Find warranty and regulatory information
ENWW Printer hardware setup and software installation 17
18 Chapter 1 Printer overview ENWW
2 Paper trays
●
Introduction
●
Load paper to Tray 1 (multipurpose tray)
●
Load paper to Tray 2
●
Load paper to the 550-sheet paper tray
●
Load paper to the 2 x 550-sheet paper trays
●
Load paper to the 2,700-sheet high-capacity input paper trays
●
Load and print envelopes
●
Load and print labels
For more information
The following information is correct at the time of publication.
For video assistance, see www.hp.com/videos/LaserJet.
For current information, see www.hp.com/support/colorljM751.
HP's all-inclusive help for the printer includes the following information:
● Install and congure
● Learn and use
● Solve problems
● Download software and rmware updates
● Join support forums
● Find warranty and regulatory information
ENWW 19
Introduction
CAUTION: Do not extend more than one paper tray at a time.
Do not use paper tray as a step.
Keep hands out of paper trays when closing.
All trays must be closed when moving the printer.
Load paper to Tray 1 (multipurpose tray)
Introduction
The following information describes how to load paper into Tray 1. This tray holds up to 100 sheets of 75 g/m
(20 lb) paper or 10 envelopes.
1. Open Tray 1.
2. Pull out the tray extension to support the paper.
2
20 Chapter 2 Paper trays ENWW
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