This is a EPSON printer update. Based on the information I learned from WWDC, all the updates for Mac OS X are controlled by Apple, including printer driver updates. In this way, Mac users don't need to search or contact their printer company web sites for new updates. As long as you install your printer driver once, Apple will automatically pass the tested updates to user through Apple regular updates.
I have many EPSON printer updates in the past. This is because I installed EPSON printer before and I still have it. When you don't use your printer, you can easily find it from System Preference->Printer & Scan, remove it from there.
Here is the snapshot of the update:
The following is the comparison of spaces used before and after of the updates:
Command: df -lak | Used(Kilobytes in 1024-blocks) |
Before | ...24,896 |
After | ...05,040 |
Difference (A-B) | -19,856 |