Can't Print anymore from iMac to HP Laserjet 100 MFP M175nw

[caseyvan]

I can't print any longer from my iMac running MacOS Sonoma 14.6.1 or MacOS Sequoia 15.3. 

After installing HP Easy Start, the driver installation process completes successfully, but printing via USB fails. Computer is connected to printer via USB, but I'm getting a prompt 'Unable to communicate with the device'. I've tried restarting computer, restarting printer, nothing helps. What could be up? Does the printer no longer work with the latest MacOS? 

[Garp_senchau]

@caseyvan, Welcome to HP Support Community 😀,

Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue

(Having printer troubles? Don’t worry, you’re not alone—every tech device has its diva moments 😅. Let’s get your Mac and printer on the same page (literally) with these simple updates and fixes. Ready to turn your printing woes into a thing of the past? Let’s dive in! 🚀)

Update Printer and Mac Firmware

• Update Printer Firmware:
  To ensure your printer is up to date, follow the steps outlined here: HP Printers - Updating or Upgrading Printer Firmware.

• Update Mac Software:
  To keep your Mac software current, refer to this guide: Click here

Update or Reinstall the HP Smart App

• If downloaded from HP.com:

  1. Delete the app by going to /Users/Username/Library/Application Support/HP Smart.
  2. Remove HP Smart from your Applications folder.
  3. Reinstall the app from the Mac App Store.

• If downloaded from the Mac App Store:
  Go to the App Store and check for updates to the HP Smart app.

Add Your Printer Using AirPrint

To ensure your printer is set up correctly for AirPrint:

1. Go to System Preferences > Printers & Scanners.
2. Check if your printer appears in the list:
   • If listed: Select the printer, click the minus (“-”) sign to remove it, then click the plus (“+”) sign to re-add it and ensure AirPrint is enabled.
   • If not listed: Click the plus (“+”) sign, select your printer, and continue.
3. Ensure "AirPrint" or "Secure AirPrint" appears under the Use or Print Using menu, then click Add.
4. Try printing a document or photo by selecting File > Print.

There you have it! 🎉 If your printer and Mac are still having issues, just remember—great things take time, but we’re getting closer to a seamless printing experience 🏆. Follow these steps, and you’ll soon be printing like a pro ✨. If problems persist, please don’t hesitate to reach out for further assistance—we’re here to help! 🧙‍♂️

Please feel free to reply here if you have any questions or if you need further clarification on any of the steps.

Take care and have a good day.

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Regards,