You hit print on your HP OfficeJet Pro 9120e and the paper slides out clean, no text, no images, just a blank sheet wasting your time and ink. It is one of the more frustrating inkjet faults because the printer acts like everything worked. It pulls paper, it hums through the motions, and it reports success. On a cartridge-based all-in-one like the 9120e, blank pages almost always trace back to a few specific causes, and you can work through them in order without any technical expertise.
The fixes below start with the safest, quickest checks and end with full resets and HP support. Run them in sequence and stop as soon as your pages come out correctly.
Start With the Ink and Cartridges
On any inkjet, a blank page is most often an ink or cartridge problem, so this is the first thing to rule out. Check the estimated ink levels from the printer's touchscreen or in the HP Smart app, and replace any cartridge that reads low or empty. The 9120e uses individual HP 937 and HP 937e EvoMore cartridges in Cyan, Magenta, Yellow and Black, and it ships with HP 937 Setup cartridges.
Open the cartridge access area and confirm each cartridge is firmly seated in its slot. If you recently installed new cartridges, make sure you removed all the plastic protective tape, since a single piece left in place can block ink flow.
This step matters even more on the 9120e because it is an HP+ printer with dynamic security. The printer is locked to Original HP ink that carries a valid HP chip for the life of the printer, and non-HP cartridges or cartridges without a valid HP chip are blocked and can cause printing to fail. If you have a third-party or chipless cartridge installed, swap in a genuine HP 937 or 937e cartridge before going any further.
Print a Test Page to Find Where the Fault Lives
Before you touch any deeper settings, find out whether the problem is the printer itself or the computer sending the job. Press the printer's Information button to print a test page directly from the hardware, bypassing your PC or Mac entirely.
If that test page also comes out blank, the fault is inside the printer, most likely a clogged printhead, so move on to cleaning. If the test page prints correctly, the printer is healthy and the problem is on the computer or app side, which means you should focus on your print settings and the print queue.
Run a Printhead Cleaning Cycle
A dried or clogged printhead is the classic cause of blank inkjet pages, and the 9120e has a built-in cleaning routine. Load plain white paper first, then run the cycle from the touchscreen.
- 1.Swipe down on the touchscreen to open the Dashboard.
- 2.Touch the Setup icon.
- 3.Touch Printer Maintenance.
- 4.Touch Clean Printhead.
A Print Quality Report prints after the cleaning stages. If defects or blanks remain, you can run the cleaning again, up to three cleaning cycles in total. Cleaning consumes ink, so only run it when you actually need it rather than repeatedly out of habit.
If your menu layout does not show this path, you can run the same cleaning from the HP Smart app instead. Open the HP Smart app, click the picture of your printer, scroll to Diagnostics or Tools, then choose Print Quality Tools and Clean Printhead (or View all print quality tools, OK, then Clean Printhead).
Align the Printhead and Re-Check the Output
Once cleaning is done, align the printhead so the freshly cleared nozzles lay down ink in the right place. From the touchscreen, swipe down to open the Dashboard, touch the Setup icon, touch Printer Maintenance, then touch Align Printhead.
Look at the new Print Quality Report after the alignment finishes. If the report and your documents print normally, you are done. If pages still come out blank or defective even after running the cleaning cycles, the cartridges themselves may be the problem and likely need to be replaced.
Make Sure the Job Is Not Paused or Offline (Windows)
If the test page printed fine but documents from your PC come out blank or not at all, a stalled Windows queue is a common cause. Open the print queue and check the printer's menu for two settings, Pause Printing and Use Printer Offline. Neither should be selected.
If you see a checkmark next to either Pause Printing or Use Printer Offline, select that item to clear it. The HP Smart app can also resume paused jobs and clear printer errors for you if you would rather not change the settings by hand.
Clear Stuck Print Jobs and Restart the Print System
A single corrupted job stuck in the queue can make every print after it fail or come out blank. On Windows, restart the print service first by searching for and opening Services, then right-click Print Spooler and choose Stop, then Start.
If that alone does not clear it, empty the stuck queue manually. With the Print Spooler service stopped, open File Explorer and go to C: then Windows then System32 then spool then PRINTERS, then delete all the files inside the PRINTERS folder. Start the Print Spooler service again afterward.
On a Mac, clear the queue by opening Terminal, typing cancel -a, pressing Enter, then closing Terminal and restarting the Mac. If problems continue, open Printers & Scanners, Control-click (right-click) in the Printers list, and choose Reset printing system. Note that this removes all printers and queued jobs, so you must re-add the 9120e afterward using Add Printer, Scanner, or Fax.
Update the Firmware and Reinstall the Latest Software
Outdated firmware or an old driver can quietly cause blank or failed prints even when everything else is fine. Update the printer's firmware and grab the latest software, either through the HP Smart app or from HP's official Software and Drivers download for the OfficeJet Pro 9120e, choosing the build that matches your operating system.
The 9120e supports Windows 11 and Windows 10, macOS 11 Big Sur through macOS 15 Sequoia, plus Linux and Chrome OS, so pick the correct version for your machine. Reinstalling the latest full driver and HP Smart often resolves stubborn blank-page issues on its own.
Restart Everything, Then Reset the Network or the Printer
If you have worked through every step above and pages are still blank, start with a simple restart of the printer, the computer and your router, then test again. A clean power cycle clears temporary glitches that no menu setting will fix.
If that does not help, restore the network settings. On the control panel, touch the Setup or Wireless icon, choose Network setup or Settings, then Restore Network Settings, and confirm with Yes. Wait about 60 seconds until the Wireless light blinks blue. Restoring the network settings clears your saved Wi-Fi details, so you will need to reconnect the printer to your network afterward.
As a last resort, restore the printer to factory defaults. Swipe down to open the Dashboard, choose Tools (or Printer Maintenance), then Restore, then Restore Factory Defaults, and confirm with Yes (your firmware may show Continue or Restore instead). The printer restarts after about 20 seconds. A factory reset clears your configuration and saved settings, so you will need to set the printer up again, including reconnecting it to your network, afterward.
When to Bring in HP Support
If your 9120e keeps printing blank pages even after you have checked the ink, replaced cartridges, cleaned and aligned the printhead, updated the firmware and drivers, and run a reset, the hardware may need professional attention. Use HP's official support channel for the 9120e to ask for further help or warranty service rather than buying more cartridges on a guess.
Frequently Asked Questions
Why does my OfficeJet Pro 9120e print blank pages but show no error?
The printer can pull paper and report a successful job while a clogged printhead, an empty or unseated cartridge, or a blocked non-HP cartridge prevents any ink from reaching the page. Press the Information button to print a test page. If it is blank, the fault is in the printer and a printhead cleaning is the next step.
Can I use non-HP ink cartridges in the 9120e?
No. The 9120e is an HP+ printer with dynamic security, so it is locked to Original HP cartridges carrying a valid HP chip for the life of the printer. Non-HP or chipless cartridges are blocked and can cause the printer to refuse to print correctly, so install genuine HP 937 or HP 937e EvoMore cartridges.
How many times should I clean the printhead?
Run the Clean Printhead cycle and review the Print Quality Report it prints after the cleaning stages. If blanks or defects remain, you can repeat it, up to three cleaning cycles in total. Cleaning uses ink, so only run additional cycles if the report still shows problems.
Will restoring factory defaults delete my settings?
Yes. Restore Factory Defaults clears your configuration, including your network connection, and the printer restarts after about 20 seconds. You will need to set the printer up again and reconnect it to Wi-Fi afterward, so use this only after the other fixes have failed.
My test page prints fine but documents from my computer are blank, what now?
That points to the computer side rather than the printer. On Windows, open the print queue and clear any checkmark next to Pause Printing or Use Printer Offline, then restart the Print Spooler service and delete stuck jobs in the C:\Windows\System32\spool\PRINTERS folder if needed. On a Mac, clear the queue with cancel -a in Terminal or reset the printing system from Printers & Scanners.
