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 3, 08/2019
Adobe®, Adobe Photoshop®, Acrobat®, and
PostScript
®
are trademarks of Adobe Systems
Incorporated.
Apple and the Apple logo are trademarks of
Apple Inc., registered in the U.S. and other
countries.
macOS is a trademark of Apple Inc., registered in
the U.S. and other countries.
AirPrint is a trademark of Apple Inc., registered in
the U.S. and other countries.
iPad is a trademark of Apple Inc., registered in
the U.S. and other countries.
iPod is a trademark of Apple Inc., registered in
the U.S. and other countries.
iPhone is a trademark of Apple Inc., registered in
the U.S. and other countries.
Microsoft®, Windows®, Windows® XP, and
Windows Vista® are U.S. registered trademarks
of Microsoft Corporation.
UNIX® is a registered trademark of The Open
Group.
Printer front view ................................................................................................................................................. 3
Printer back view .................................................................................................................................................. 4
2-line control-panel view (nw and dn models only) ....................................................................................... 5
Supported operating systems ......................................................................................................................... 10
Mobile printing solutions .................................................................................................................................. 12
Power consumption, electrical specications, and acoustic emissions .................................................... 14
Operating environmental range ...................................................................................................................... 14
Printer hardware setup and software installation ............................................................................................................ 15
2 Paper trays .............................................................................................................................................................................................. 17
Load paper to the single-sheet slot (Tray 1) ..................................................................................................................... 18
Tray 1 paper orientation ................................................................................................................................... 20
Load paper to Tray 2 ............................................................................................................................................................. 21
3 Supplies, accessories, and parts .......................................................................................................................................................... 29
Order supplies, accessories, and parts ............................................................................................................................... 30
Supplies and accessories ................................................................................................................................. 30
Customer self-repair parts ............................................................................................................................... 31
Replace the toner cartridges ................................................................................................................................................ 32
How to print (Windows) .................................................................................................................................... 38
Automatically print on both sides (Windows) ............................................................................................... 38
Manually print on both sides (Windows) ........................................................................................................ 39
Print multiple pages per sheet (Windows) .................................................................................................... 39
Select the paper type (Windows) .................................................................................................................... 40
How to print (macOS) ........................................................................................................................................ 41
Automatically print on both sides (macOS) ................................................................................................... 41
Manually print on both sides (macOS) ........................................................................................................... 41
Print multiple pages per sheet (macOS) ........................................................................................................ 42
Select the paper type (macOS) ........................................................................................................................ 42
Mobile printing ........................................................................................................................................................................ 43
Wi-Fi Direct (wireless models only) ................................................................................................................ 43
Enable or disable Wi-Fi Direct ..................................................................................................... 45
Change the printer Wi-Fi Direct name ....................................................................................... 46
HP ePrint via email ............................................................................................................................................ 48
HP ePrint software ............................................................................................................................................ 49
Use walk-up USB printing (touchscreen models only) ..................................................................................................... 51
5 Manage the printer ................................................................................................................................................................................. 53
Use HP Web Services applications (touchscreen models only) ...................................................................................... 54
Change the printer connection type (Windows) ................................................................................................................ 55
Advanced conguration with HP Embedded Web Server (EWS) and HP Device Toolbox (Windows) ....................... 56
Method one: Open the HP Embedded Web Server (EWS) from the software ......................................... 56
Method two: Open the HP Embedded Web Server (EWS) from a web browser ...................................... 56
Congure IP network settings .............................................................................................................................................. 60
View or change network settings ................................................................................................................... 60
Rename the printer on a network ................................................................................................................... 61
Manually congure IPv4 TCP/IP parameters from the control panel ........................................................ 62
Printer security features ....................................................................................................................................................... 64
Print with EconoMode ....................................................................................................................................... 66
Set the Sleep/Auto O After Inactivity setting .............................................................................................. 66
Set the Shut Down After Inactivity delay and congure the printer to use 1 watt or less of power .... 67
Set the Delay Shut Down setting .................................................................................................................... 68
HP Web Jetadmin ................................................................................................................................................................... 70
Update the rmware .............................................................................................................................................................. 71
Method one: Update the rmware using the control panel ........................................................................ 71
Method two: Update the rmware using the Firmware Update Utility ..................................................... 72
Customer support .................................................................................................................................................................. 74
Control panel help system (touchscreen models only) ................................................................................................... 75
Restore the factory-set defaults ......................................................................................................................................... 76
A “Cartridge is low” or “Cartridge is very low” message displays on the printer control panel ................................. 77
Change the “Very Low” settings ...................................................................................................................... 77
For printers with fax capability ................................................................................................... 78
Order supplies .................................................................................................................................................... 78
Printer does not pick up paper or misfeeds ....................................................................................................................... 79
The product does not pick up paper ............................................................................................................... 79
The product picks up multiple sheets of paper ............................................................................................ 79
Clear paper jams ..................................................................................................................................................................... 80
Paper jam locations ........................................................................................................................................... 80
Experiencing frequent or recurring paper jams? .......................................................................................... 81
Clear paper jams in the single-sheet slot (Tray 1) ....................................................................................... 83
Clear paper jams in Tray 2 ................................................................................................................................ 85
Clear paper jams in the rear door and the fuser area .................................................................................. 87
Clear paper jams in the duplexer (duplex models only) .............................................................................. 89
Clear paper jams in the output bin .................................................................................................................. 91
Update the printer rmware ............................................................................................................................ 94
Print from a dierent software program ....................................................................................................... 94
Check the paper-type setting for the print job ............................................................................................. 94
Check the paper type setting on the printer ............................................................................. 94
Check the paper type setting (Windows) .................................................................................. 94
Check the paper type setting (macOS) ...................................................................................... 94
Check toner-cartridge status ........................................................................................................................... 95
Step one: Print the supplies status page .................................................................................. 95
Step two: Check supplies status ................................................................................................. 95
Print a cleaning page ......................................................................................................................................... 96
Visually inspect the toner cartridge or cartridges ........................................................................................ 97
Check paper and the printing environment ................................................................................................... 97
Step one: Use paper that meets HP specications .................................................................. 97
Step two: Check the environment .............................................................................................. 97
Step three: Set the individual tray alignment ........................................................................... 98
Try a dierent print driver ................................................................................................................................ 99
Check the EconoMode settings ..................................................................................................................... 100
Adjust Print Density ........................................................................................................................................ 100
Calibrate the printer to align the colors ....................................................................................................... 101
Adjust color settings (Windows) ................................................................................................................... 102
Print and interpret the print quality page ................................................................................................... 102
The printer does not print after the wireless conguration completes .................................................. 115
The printer does not print, and the computer has a third-party rewall installed ............................... 115
The wireless connection does not work after moving the wireless router or printer .......................... 115
Cannot connect more computers to the wireless printer ......................................................................... 115
The wireless printer loses communication when connected to a VPN ................................................... 116
The network does not appear in the wireless networks list .................................................................... 116
The wireless network is not functioning ..................................................................................................... 116
Perform a wireless network diagnostic test ............................................................................................... 116
Reduce interference on a wireless network ................................................................................................ 117
Index ........................................................................................................................................................................................................... 119
ENWWvii
viiiENWW
1Printer overview
●
Warning icons
●
Printer views
●
Printer specications
●
Printer hardware setup and software installation
For more information:
The following information is correct at the time of publication. For current information, see www.hp.com/
support/ljM255.
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
ENWW1
Warning icons
Warning icon denitions: The following warning icons may appear on HP products. Apply appropriate caution
where applicable.
●
Caution: Electric shock
●
Caution: Hot surface
●
Caution: Keep body parts away from moving parts
●
Caution: Sharp edge in close proximity
2Chapter 1 Printer overviewENWW
Printer views
6
7
3
1
4
2
8
5
9
10
●
Printer front view
●
Printer back view
●
2-line control-panel view (nw and dn models only)
●
Touchscreen control-panel view (dw models only)
Printer front view
Table 1-1 Printer front view legend
NumberPrinter component
12-line backlit control panel (nw and dn models only)
2Output bin
3Output bin extension
4Front door (access to the toner cartridges)
5Model name
6Single-sheet priority feed slot (Tray 1)
7Main input tray (Tray 2)
8Power button
9Control panel with color touchscreen display (dw models only)
10Walk-up USB port for printing without a computer (dw models only)
ENWWPrinter views3
Printer back view
2
1
6
3
5
4
Table 1-2 Printer back view legend
NumberPrinter component
1Rear door (access for clearing jams)
2Serial number and product number label
3Power connection
4USB interface port
5Ethernet port
6Duplexer (duplex models only)
4Chapter 1 Printer overviewENWW
2-line control-panel view (nw and dn models only)
2
1
3
6
45
7
Table 1-3 2-line control panel legend
NumberControl panel componentFunction
12-line control panel displayThis screen displays menus and printer information.
2OK buttonPress the OK button for the following actions:
●Open the control-panel menus.
●Open a submenu displayed on the control-panel display.
●Select a menu item.
●Clear some errors.
●Begin a print job in response to a control-panel prompt (for example, when
the message Press [OK] to continue appears on the control-panel display).
3
Left arrow button
Use this button to navigate through the menus or to decrease a value that
appears on the display.
ENWWPrinter views5
Table 1-3 2-line control panel legend (continued)
NumberControl panel componentFunction
4
5
6
7
Back arrow button
Wireless button (wireless
models only)
Cancel button
Right arrow button
Use this button for the following actions:
●Exit the control-panel menus.
●Scroll back to a previous menu in a submenu list.
●Scroll back to a previous menu item in a submenu list (without saving
changes to the menu item).
Use this button to access the wireless menu.
Press this button to cancel a print job or to exit the control panel menus.
Use this button to navigate through the menus or to increase a value that appears
on the display.
6Chapter 1 Printer overviewENWW
Touchscreen control-panel view (dw models only)
54
1
2
3
Table 1-4 Touchscreen control panel legend
NumberControl panel componentFunction
1
2
3
4TouchscreenThe display provides access to menus, help animations, and printer information.
5Home page screen indicatorThe display indicates which Home screen the control panel is currently
Back button
Home button
Help button
Touch this button to return to the previous screen.
Touch this button to navigate to the Home screen.
Touch this button to open the control-panel help system.
displaying.
NOTE: While the control panel does not have a standard Cancel button, during many printer processes a Cancel
button appears on the touchscreen. This permits users to cancel a process before the printer completes it.
ENWWPrinter views7
Home screen layout
12
45367
2
The Home screen provides access to the printer features and indicates the current status of the printer.
Return to the Home screen at any time by touching the Home button on the printer control panel.
NOTE: The features that appear on the Home screen can vary, depending on the printer conguration.
Table 1-5 Home screen layout legend
NumberHome screen
1Reset buttonTouch this button to reset any temporary job settings to the default printer settings.
2Connection Information
3Printer statusThis screen area provides information about the overall printer status.
4
5
6
7Setup button Touch this button to open the Setup menu.
component
button
USB button
Supplies button
Apps button
Function
Touch this button to open the Connection Information menu, which provides network
information. The button appears as either a wired network icon or a wireless
network icon , depending on the type of network to which the printer is connected.
Touch this button to open the USB Flash Drive menu.
Touch this button to view information about supplies status.
Touch this button to open the Apps menu to print directly from select Web applications.
8Chapter 1 Printer overviewENWW
How to use the touchscreen control panel
Use the following actions to use the printer touchscreen control panel.
Table 1-6 Touchscreen control panel actions
ActionDescriptionExample
TouchTouch an item on the screen to select that
item or open that menu. Also, when
scrolling through menus, briey touch the
screen to stop the scrolling.
SwipeTouch the screen and then move the nger
horizontally to move the screen sideways.
ScrollTouch the screen, and then, without lifting
the nger, move the nger vertically to move
the screen.
Touch the Setup button to open the
Setup menu.
Swipe the Home screen to access the Setup
button .
Scroll through the Setup menu.
ENWWPrinter views9
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/ljM255.
●
Technical specications
●
Supported operating systems
●
Mobile printing solutions
●
Printer dimensions
●
Power consumption, electrical specications, and acoustic emissions
●
Operating environmental range
Technical specications
See www.hp.com/support/ljM255 for current information.
Supported operating systems
The following information applies to the printer-specic Windows PCL 6 and HP print drivers for macOS and to
the software installer.
Windows: The HP Software Installer installs the “HP PCL.6” version 3 print driver, the “HP PCL 6” version 3 print
driver, or the “HP PCL-6” version 4 print driver, depending on the Windows operating system, along with optional
software when using the software installer. Download the "HP PCL.6" version 3 print driver, the "HP PCL 6"
version 3 print driver, and the "HP PCL-6" version 4 print driver from the printer-support website for this printer:
www.hp.com/support/ljM255.
macOS: Mac computers are supported with this printer. Download HP Smart either from 123.hp.com or from the
Printer Support page, and then use HP Smart to install the HP print driver. HP Smart is not included in the
HP Software Installer.
1.Go to 123.hp.com.
2.Follow the steps provided to download the printer software.
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.
Table
1-7 Supported operating systems and print drivers
Operating systemPrint driver installed (from the software on
the web)
Windows® XP SP3, 32-bit
The “HP PCL.6” printer-specic print driver is
installed for this operating system as part of
the software installation.
Notes
Microsoft retired mainstream support for
Windows XP in April 2009. HP will continue
to provide best eort support for the
discontinued XP operating system. Some
features of the print driver are not
supported.
10Chapter 1 Printer overviewENWW
Table 1-7 Supported operating systems and print drivers (continued)
Operating systemPrint driver installed (from the software on
the web)
Windows Vista®, 32-bit
Windows 7, 32-bit and 64-bitThe “HP PCL 6” printer-specic print driver is
Windows 8, 32-bit and 64-bitThe “HP PCL 6” printer-specic print driver is
Windows 8.1, 32-bit and 64-bitThe “HP PCL-6” V4 printer-specic print
Windows 10, 32-bit and 64-bitThe “HP PCL-6” V4 printer-specic print
Windows Server 2008 SP2, 32-bitThe “HP PCL.6” printer-specic print driver is
The “HP PCL.6” printer-specic print driver is
installed for this operating system as part of
the software installation.
installed for this operating system as part of
the software installation.
installed for this operating system as part of
the software installation.
driver is installed for this operating system
as part of the software installation.
driver is installed for this operating system
as part of the software installation.
available for download from the printersupport website. Download the driver, and
then use the Microsoft Add Printer tool to
install it.
Notes
Microsoft retired mainstream support for
Windows Vista in April 2012. HP will
continue to provide best eort support for
the discontinued Vista operating system.
Some features of the print driver are not
supported.
This operating system is fully supported.
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.
This operating system is fully supported.
Microsoft retired mainstream support for
Windows Server 2008 in January 2015. HP
will continue to provide best eort support
for the discontinued Server 2008 operating
system. Some features of the print driver
are not supported.
Windows Server 2008 SP2, 64-bitThe “HP 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 2008 R2, SP 1, 64-bitThe “HP PCL 6” printer-specic print driver is
installed for this operating system as part of
the software installation.
Windows Server 2012, 64-bitThe “HP PCL 6” printer-specic print driver is
installed for this operating system as part of
the software installation.
Windows Server 2012 R2, 64-bitThe “HP PCL-6” printer-specic print driver is
installed for this operating system as part of
the software installation.
Windows 10 server (Server 2016), 32-bit
and 64-bit
macOS v10.15 Catalina, macOS v10.14
Mojave, macOS v10.13 High Sierra, macOS
v10.12 Sierra
The “HP PCL-6” printer-specic print driver is
installed for this operating system as part of
the software installation.
To install the print driver, download
HP Smart from 123.hp.com. Follow the
steps provided to install the printer software
and print driver.
Microsoft retired mainstream support for
Windows Server 2008 in January 2015. HP
will continue to provide best eort support
for the discontinued Server 2008 operating
system.
This operating system is fully supported.
This operating system is fully supported.
This operating system is fully supported.
This operating system is fully supported.
This operating system is fully supported.
NOTE: For a current list of supported operating systems, go to www.hp.com/support/ljM255 for HP's all-
inclusive help for the printer.
ENWWPrinter specications11
NOTE: For HP UPD driver support for this printer, go to www.hp.com/go/upd. Under Additional information,
click the links.
Table 1-8 Minimum system requirements
WindowsmacOS
●Internet connection
●Dedicated USB 1.1 or 2.0 connection or a network connection
●400 MB of available hard-disk space
●1 GB RAM (32-bit) or 2 GB RAM (64-bit)
Mobile printing solutions
HP oers multiple mobile and ePrint 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/
LaserJetMobilePrinting.
NOTE: Update the printer rmware to ensure all mobile printing and ePrint capabilities are supported.
●Wi-Fi Direct (wireless models only)
●HP ePrint via email (Requires HP Web Services to be enabled and the printer to be registered with
HP Connected)
●HP ePrint app (Available for Android, iOS, and Blackberry)
●HP Smart app for iOS and Android devices
●HP ePrint software
●Internet connection
●1 GB of available hard-disk space
●Google Cloud Print
●AirPrint
●Android Printing
12Chapter 1 Printer overviewENWW
Printer dimensions
3
2
1
3
1
2
3
2
1
3
1
2
Figure 1-1 Dimensions for the nw and dn models
Table 1-9 nw and dn model printer dimension legend
DimensionPrinter fully closedPrinter fully open
1. Height247.5 mm (9.7 in)247.5 mm (9.7 in)
2. Depthnw models: 385.8 mm (15.2 in)
dn models: 419 mm (16.5 in)
3. Width392 mm (15.4 in)392 mm (15.4 in)
Weight (with cartridges)nw models: 13.8 kg (30.4 lb)
dn models: 14.8 kg (32.6 lb)
Figure 1-2 Dimensions for dw models
nw models: 855 mm (33.7 in)
dn models: 1008 mm (39.7 in)
nw models: 13.8 kg (30.4 lb)
dn models: 14.8 kg (32.6 lb)
Table
1-10 dw model printer dimension legend
DimensionPrinter fully closedPrinter fully open
1. Height247.5 mm (9.7 in)297 mm (11.7 in)
2. Depth419 mm (16.5 in)1008 mm (39.7 in)
ENWWPrinter specications13
Table 1-10 dw model printer dimension legend (continued)
DimensionPrinter fully closedPrinter fully open
3. Width392 mm (15.4 in)392 mm (15.4 in)
Weight (with cartridges)14.8 kg (32.6 lb)14.8 kg (32.6 lb)
Power consumption, electrical specications, and acoustic emissions
See www.hp.com/support/ljM255 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 environmental range
Table 1-11 Operating environmental range
EnvironmentRecommendedAllowed
Temperature15° to 27°C (59° to 80.6°F)10° to 32.5°C (50° to 90.5°F)
Relative humidity30% to 70% relative humidity (RH)10% to 80% (RH)
14Chapter 1 Printer overviewENWW
Printer hardware setup and software installation
For basic setup instructions, see the Setup Poster and Getting Started Guide that came with the printer. For
additional instructions, go to HP support on the Web.
Go to www.hp.com/support/ljM255 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
ENWWPrinter hardware setup and software installation15
16Chapter 1 Printer overviewENWW
2Paper trays
●
Introduction
●
Load paper to the single-sheet slot (Tray 1)
●
Load paper to Tray 2
●
Load and print envelopes
●
Load and print labels
For more information:
The following information is correct at the time of publication. For current information, see www.hp.com/
support/ljM255.
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
ENWW17
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 the single-sheet slot (Tray 1)
Introduction
The following information describes how to load paper in Tray 1. This tray holds 1 sheet of paper, use it to print
single-page documents, documents that require multiple paper types, or envelopes.
NOTE: To avoid paper jams:
●Never add or remove paper from the tray during printing.
●Use paper that is not wrinkled, folded, or damaged.
1.Move the paper width guides in the single-sheet
priority feed slot outward.
2.Place the top edge of the sheet at the opening, and
then adjust the side guides so that they lightly
touch the sheet, but do not bend it.
18Chapter 2 Paper traysENWW
3.Insert the single sheet into the slot and hold it. The
printer will pull the sheet partially into the paper
path. For information about how to orient the
paper, see Tray 1 paper orientation on page 20.
NOTE: Depending on the size of the paper, you
might need to support the sheet with two hands
until the sheet advances into the printer.
4.At the computer, begin the printing process from
the software application. Make sure that the driver
is set to the correct paper type and size for the
paper being printed from the single-sheet priority
feed slot.
ENWWLoad paper to the single-sheet slot (Tray 1)19
Tray 1 paper orientation
123
When using paper that requires a specic orientation, load it according to the information in the following table.
Table 2-1 Tray 1 paper orientation
Paper typeImage orientationOutputPaper sizeHow to load paper
Letterhead or
Preprinted
Letterhead or
Preprinted
Portrait
NOTE: In Tray 1, A5
paper can be oriented
for both Landscape
and Portrait printing.
Portrait2-sided printingLetter, Legal, Executive,
1-sided printingLetter, Legal, Executive,
Ocio (8.5 x 13), A4, A5, A6, B5 (JIS),
B5 (ISO), Postcard #10, Japanese
Postcard (Postcard (JIS)), Double
Japan Postcard Rotated (Double
Postcard (JIS))
Ocio (8.5 x 13), A4, A5, A6, B5 (JIS),
B5 (ISO), Postcard #10, Japanese
Postcard (Postcard (JIS)), Double
Japan Postcard Rotated (Double
Postcard (JIS))
Face-up
Top edge leading into the printer
Face-down
Top edge leading into the printer
PrepunchedPortrait
NOTE: In Tray 1, A5
paper can be oriented
for both Landscape
and Portrait printing.
1-sided printing or 2sided printing
Letter, Legal, Executive,
Ocio (8.5 x 13), A4, A5, A6, B5 (JIS),
B5 (ISO), Postcard #10, Japanese
Postcard (Postcard (JIS)), Double
Japan Postcard Rotated (Double
Postcard (JIS))
Face-up
Holes toward the left side of the
printer
20Chapter 2 Paper traysENWW
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