icdd PrintUITool Chewing up CPU Cycles

I might have stumbled on a solution for icdd and PrintUITool consuming all of the PCU cycles. I was have this exact same issue.= and was searching for a fix online. I noticed that I had to outstanding software updates in the app store. One for Spark and one for iPhoto, the old version. I didn't actually think it would help but installed the updates anyway. I installed both of these and rebooted. Now I don't see icdd and PrintUITool consuming all of the PCU cycles. I've only been running for an hour so we'll see. I'll report back and provide and update if this is the fix or not.

Try running this program in your normal account, then copy and paste the output in a reply. The program was created by etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. On the screen with Options, please open Options and check the bottom 2 boxes before running. Click “Share Report” button in the toolbar, select “Copy Report” and then paste into a reply. This will show what is running on your computer. No personal information is shown.

Etrecheck – System Information

No go, still happens, still looking for a solution

Please restart your Mac in "Safe Mode" and observe that process while operating in that mode.

Then, restart normally.

Report your observations.

Those processes are not always that active? In other words it comes and goes?

Try disabling iCloud. Sign out of iCloud completely.

Select Open Files and Ports, copy all that information and post it in a reply. It may or may not reveal anything useful.

Is there anyone from the Apple engineering team that is even remotely qualified to address this issue?

Yes but they will never directly contribute to this site. They labor in darkness, deep within a concrete and steel reinforced bunker.

Is it malware?

No.

Is it a bug in Sierra?

Possibly.

I even tried removing the executable permission on the icdd binary but no go, even with sudo I have no permission.

You can't do that due to SIP.