System Slow-Down After Printing

Question

I recently installed Mountain Lion. Over the last couple of weeks I have noticed a significant operating system (10.8.2) slow down after printing with my Epson R3000 printer. This happens after every printing session. When I say slow-down I mean significant delays and dreading "beachballs" when opening applications, selecting menu items or anything else I should choose to do. I'm left with re-starting the computer to get going normally again.After re-atarting I have gone to "verify permissions" and I get approx "5" pages of permission errors, all associated with the printer library in some fashion or another. I then repair all those permissions and re-start my MacPro. The operating system then works as normal and I can use the computer with no problems (until I start printing again). I mainly use the computer for photo editing with Adobe Photoshop CS6, Adobe Lightroom 4 and Aperture 3.2.
I did not have this problem before upgrading to Mountain Lion (and then to 10.8.2). I did not get "significant" permission errors before upgrading. Since all printer drivers for this printer are handled now by Apple via the "new" Software Update process I can't even re-download the Epson printer driver and start over. I'm completely at a loss as to what, associated with the printer function, is causing these "significant" permission errors and subsequent operating system slow down. My printer is almost brand new and was working flawlessly before Mountain Lion. Let me be clear though, I can print fine. My problem is the system slow down after using the print function which I am only guessing has something to do with the "5" pages of permission errors after printting photos (with CS6/Lightroom/Aperture).
Incidently, I am not in any way a computer expert. Verifying and repairing permissions is about all I know how to do that's why I need help. I also just thought I would try the forums first before going to technical support to see what people thought about this.
Again, I repair the permission errors, re-start my system and all is fine. Any further suggestions would be deeply appreciated.

Answer 1

When you see a beachball cursor or the slowness is especially bad, note the exact time: hour, minute, second.  
These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting.