HP Device Monitor taking up 70% of CPU on mac!

[leabig]

My Activity Monitor is showing HP Device Monitor Constantly Taking 70% of my CPU which is making my system very laggy and causing issues with reponsiveness of other programs.  

I've referenced https://h30434.www3.hp.com/t5/LaserJet-Printing/HP-Device-Monitor-Constantly-Taking-70-88-of-CPU/td-..., but it is not resolving the issue.  I've completely reset, then uninstalled and reinstalled the HP Easy Start app, but the issue remains.   

PLEASE HELP!  I can't run this printer and a zoom meeting at the same time.  

Mac OS Catalina 10.15.1 (Catalina)

RAM: 32GB

Internet Connectivity: WiFi connected

Printer also connected via USB cable

[Kumar0307 · Accepted solution]

@leabig, Welcome to the HP Support Community!

Let us try these steps to resolve this issue:

Uninstall the application completely from the MAC

• Disconnect the USB cable from the printer, if necessary.
• Click Finder in the Dock.
• In the menu bar, click Go, click Applications, and then open the HP or Hewlett Packard folder.
• If HP Uninstaller is in the folder, double click it to uninstall the software, and then skip to the step to prepare the printer for the driver installation.
• If HP Uninstaller is not in the folder, continue to the next step.
• Click and drag the HP or Hewlett Packard folder to the Trash icon in the Dock.
• In the menu bar, click Go, click Go to Folder, type /Library/Printers, and then click Go.
• Click and drag the HP or Hewlett Packard folder to the Trash icon in the Dock.
• Right-click or Ctrl + click the Trash icon, and then select Empty Trash.
• Reboot the MAC.

Install the printer using AirPrint driver

Please ensure that the printer is up to date with its firmware and Mac is up to date with its software. If you are unsure you may use the links below to update the printer firmware and Mac software:

Update printer firmware

Update software on Mac 

1.) Click the Apple menu, click System Preferences, and then click Print & Scan or Printers & Scanners.

2.) Check if your printer name displays in the Printers list, If your printer is listed, click the printer name, click the minus sign to delete the printer.

3.) If you see multiple printer queues for the same printer, remove all extra printers by selecting them one at a time, and then clicking the minus button at the bottom of the list.

4.) Click the plus sign, click Add Printer or Scanner, click the printer name.

5.) Click the Use or Print Using menu, select AirPrint in the pop-up menu. Then click Add.​​​​​​

6.) Try to print. Check the Device monitor.

Let me know how this goes.

If you feel my post solved your issue, please click “Accept as Solution”, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

[leabig]

Kumar - unfortunately, this only solved my problem for a short period of time.  HP Device Monitor is back at its bad behavior, taking up 30-50% of my CPU.  This gets even worse when I am using Zoom.  Is there a patch, or a known problem that I can report for review?

[TEJ1602]

@leabig

I am doing a little bit of research on the issue. I will write to you once I have a solution.

Thanks for understanding

[leabig]

I have removed all of the HP software from my Mac which has solved the lagging issue.  I will wait to hear from you before reinstalling. In the meantime, I'm unable to use the device for printing and scanning.  

[Kumar0307]

@leabig

You may update the MAC software and the printer firmware and Install the printer using AirPrint driver as suggested in my previous post.

Let me know how it goes.

[CWW1]

I too am having the same problem.  I followed all the steps in both posts and my system is still slowed very significantly by this HP Device Monitor using up system resources.  A fix for this HP software bug would be most appreciated.

[leabig]

I have done this already Kumar. The only solution to the system issue has been to completely remove all HP software from my device. Now I am without a printer until there is a fix. What is the update on your end?

[Kumar0307]

@leabig, @CWW1, Thank you for your patience. Since you have tried all the troubleshooting steps and the issue persists, I will have to replicate the issue on a MAC in the lab to find a solution. 

I will keep you posted. 

[CWW1]

Thanks for looking into the issue.