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- HP Community
- Printers
- Printing Errors or Lights & Stuck Print Jobs
- Pro 9129E fails to print evenlopes

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06-09-2025 12:02 PM
Load envelopes as required. Print from MSWord mailing. After filling out the needed address, etc, hit print, and nothing happened. Have tried many times with the same results.
06-09-2025 12:41 PM
Welcome to the HP English Community --
If not done,
- Load Software
- Alert the printer to Tray and Paper Settings
- Re-check job configuration - Print using Word Mailings or Print manual envelope in Word
Details / Examples
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Printer Software
If you have not yet done so, (re)install the Full Feature Software / full driver printer software.
HP Full Feature Software / Full Driver printer software - supports printing and scanning from the web, printing in in other software and programs (for example, Word), and provides access to the full range of Printing Preferences / Shortcuts. The full driver generally adds at one, possibly least one, possibly two shortcuts to the Desktop: Printer Assistant, HP Scan Assistant, and/or HP Scan.
NOTES:
HP Scan is not installed if the printer does not support Scan.
The Printer Assistant is not installed if the type of full driver software does not support it.
If the printer model includes built-in Fax hardware, Fax software is installed to support the setup and use of the Fax driver.
No Sign-in required to use full driver printer software.
Reinstalling?
- Uninstall existing full driver printer software from Programs and Features.
Reference: Uninstall HP printer software and drivers / HP Smart
- If your printer software includes a separate "Help" segment in Programs and Features, uninstall that, too.
- Restart the computer and log in.
- If the printer is connected to the computer using a printer USB cable, remove / disconnect the cable before loading the software.
>>> Full Feature Software - Web Pack Installation Webpage - Information - Download / Save / (then) Install <<<
HP OfficeJet Pro 9120 series EasyStart Printer Setup Software - Offline Use Only
In general, the web pack should load -
Download package > Save > Right-Click on the installation Package > Run as Administrator
If / When asked, opt for the Full Driver / Full Software to be installed.
Using USB? (Re)Connect when instructed to do so.
After the software is installed, Restart the computer and sign in.
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Next,
Optional – When Supported for your printer
HP Universal Scan Software
NOTE: Model and Operating System version Dependent
Note: HP Universal Scan Software can be installed as standalone or installed after the full feature printer software.
HP Universal Scan Software installs a new, full featured, (and separate) HP Scan software shortcut to the Desktop.
Reference: Open HP Universal Scan Full Feature Software > If needful, Choose a different OS > Open all > Find / Download / Save / Install HP Universal Scan – Full Feature Software and Driver Webpack.
After the software is installed, Restart the computer and sign in.
HP Universal Scan Software includes a larger GUI to make using the software easier on high-resolution screens. New features have been added to the main menu to help with navigating the settings.
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Shortcuts on the Desktop
The installation of the full driver generally adds at least one or more shortcuts to the Desktop.
Note: Printer Assistant, HP Scan Assistant, and HP Scan are dependent on printer model and supported software options.
- Printer Assistant – Where still supported as part of the full driver printer software
- HP Scan – Shortcut on Desktop named for the printer model
OR
- HP Scan Assistant – For those printers that no longer provide the Printer Assistant
- HP Scan - Shortcut named for itself
AND / OR
- When installed, HP Universal Scan software adds a separate self-named “HP Scan” shortcut
- NOTE >> If you install the full driver printer software, installing HP Universal Scan as a standalone software from category Software & Drivers is not necessary. The system will allow you to install both.
Printer Assistant shortcut > Tab Scan > Manage Scan to Computer > Enable
Or
HP Scan Assistant shortcut > Manage Scan to Computer > Enable
Example - Desktop Shortcuts
Printer_Assistant_Scan_Assistant_Shortcut_Icons_on_Desktop_9
Example - Programs and Features - Installed Printer Software
Programs_and_Features_Printer_Desktop_Icons_20
Example - Programs and Features - Installed Printer Software
and Paper
According to the user manual, the printer has but one tray:
User Guide - HP OfficeJet Pro 9120e Series
Pages 1-2
After changing the paper in the tray (from plain to envelope),
Use the Printer Control Panel to modify the Tray and Paper settings
OR
Use the Embedded Web Server (EWS) to Modify the Tray and Paper / Print Default settings.
Open your Browser > Type / enter the Printer IP address into URL / Address bar
Section Paper > Trays > click on Tray to configure
Next (as available)
Section Print > Default Print Options > Select default options / tray
General Example - EWS - Tray and Paper
EWS_9135_Tray_and_Paper_8
EWS_9135_Print_Default_Print_Options_8
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Print Envelopes - Word
Example - Word > Mailings > Envelopes
Rabbits_and_Chickens_Test_Envelope_10_16
As an alternative when Mailings > Envelopes just won't work ...
Example - Word - Manual Envelope
Manual_DL_Envelope_Text_Box_Insert_5
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References / Resources
HP Printer Home Page - References and Resources
Learn about your Printer - Solve Problems
“Things that are your printer”
When the website support page opens, Select (as available) a Category > Topic > Subtopic
NOTE: Content depends on device type and Operating System
Categories: Warranty Check, Alerts, Troubleshooting, Ink & Paper, HP Software & Drivers / Firmware Updates, Setup & User Guides, Product Specifications, Account & Registration, Warranty & Repair
Open
Enter the device type and model name of your HP product
OR
Select a saved product from HP Account Dashboard
OR
HP OfficeJet Pro 9129e All-in-One Printer
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