Hi michaelsomberg,
Are you scanning with HP Scan or the HP Director from a previous installation? If so, the latest HP Printer Driver Update 2.14 included an update for your device which allows scanning via Image Capture. However, this new HP Scanner plugin has a conflict with your HP Scan/HP Director software.
So there are two solutions for you:
1. Use the Image Capture for scanning - you can start it from Print & Scan, Preview or Image Capture itself.
2. Remove the HP Scanner.app:
The plugin is located in Macintosh HD/Library/Image Capture/Devices.
Only remove the “HP Scanner.app” and not the “HPScanner.app”. Those are different drivers. If you remove the “HPScanner.app” and you have another HP Multifunction device such as Officejet or Photosmart it may cause the ICA scanning fail for it too.
So please do only remove the “HP Scanner.app” (the one with the space between “HP” and “Scanner”).
It might be that the HP Scanner plug-in is in use and you cannot move it into the trash bin. In that case open the Activity Monitor (located in Applications/Utilities folder). Search for HP – the HP Scanner will be listed. Highlight HP Scanner and click on Quit Process. Then you can move the file into the trash bin. Restart the Mac.
Hence this plugin is removed, the HP Scan will be able to communicate with the Laserjet and scanning should work fine. However, you will not be able to use the ICA (scan via Preview, Print & Scan or Image Capture) anymore.
Hope this information is helpful.