HP Device Monitor Constantly Taking 70-88% of CPU

[tacofeast]

My Activity Monitor is showing HP Device Monitor Constantly Taking 70-88% of my CPU causing severe slowing of applications- opening and use. This is happening with only 3-4 applications open.

The printer is connected only via USB and WiFi on the printer is disconnected/turned off.

How can this be fixed?

My config:

Mac OSX 10.11.6 (El Capitan)

RAM: 8GB

Internet Connectivity: WiFi connected to high speed cable.

Thank you.

[sandytechy20 · Accepted solution]

@tacofeast

Welcome to the HP Forums, this is a great location to get assistance! I read your post and see that HP Device Monitor Constantly Taking 70-88% of CPU. I would like to help you resolve this issue. 

Please follow the steps below.

Reset the Print System:

Please click here for instructions on how to perform the Reset. When the website opens follow the steps under'Resetting the printing system in OS X Lion' as the steps are the same for Mac OS X 10.10. This Reset will remove every printer from your Mac. However, it does not uninstall the printers. Therefore, should you use other printers on this Mac, once the Reset is complete simply ensure that the printers are connected via a USB Cable or Network connected and (+) Add them back in. Do not add your HP Officejet back in at this time.

Once the reset is complete, please proceed to the next step.

Uninstall Drivers and Software:

Next, please click here for steps on how to properly uninstall your printer. Once the site opens select the dropdown for 'Mac OS X v10.6, OS X v10.7, OS X v10.8, and OS X v10.9' and follow the steps under Method Two to complete the uninstall process.

Once the uninstall is complete, please continue on. 

Verify and Repair your Disk Permissions on the Mac:

1. Open Macintosh HD and go to Applications
2. Go to the Utilities Folder
3. Open the Disk Utility
4. Select the Hard Drive volume you are using (usually on the left)
5. Select Verify Disk Permissions
6. Once that process is done, select Repair Disk Permissions

Manually install Driver Package:

Please click here to manually download the Apple Update package for HP Printer Drivers v3.0. Once the website opens select the Download button at the top. Follow the onscreen instructions to install the driver package.

Check for Apple Updates:

1. Go to Apple
2. Select System Preferences
3. Select Software Update
4. Click Update Now
5. Install your available updates
6. Restart your computer

Add the Device:
1. Click the Apple menu, and then click System Preferences.

2. Click Print & Scan, and then check if the name of your printer displays in the Printers list.

3. Click the name of your printer, click the minus sign (), and then delete the printer. 

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

5. Click the Use or Print Using box, and then select the name of your printer in the pop-up menu. Ensure that the Officejet driver is selected.

6. Click Add to add the printer to the list.

Let me know if that helps.

Cheers.

[tacofeast]

Looks like these steps did the trick! HP Device monitor is no longer appearing as a process my Activity Monitor. Thanks.

[Riddle_Decipher]

@tacofeast

Thank you for the update,

I appreciate your time and efforts, 

I'm glad we could contribute towards identifying and leading you towards the solution for this concern. 

You've been great to work with and it has been a genuine pleasure interacting with you.

I hope both you and your product works great and remain healthy for a long time 😉 

To simply say thanks for my efforts to assist you, please click the "Thumbs Up" button to give me a Kudos.

Take care now and do have a fabulous week ahead. 🙂