Scrap-n-Repair: HP Deskjet Ink Advantage 2135 Leaked Ink, Disassembly and Cleaning

Found this printer from de-trash. Tested with printout problem where ink is scattered on the paper edges. Upon disassembly, I found that the ink is scattered all over the internal parts of the printer. This could be due to the ink cartridge leaking or the printer being moved sideway / Upside down.
The unit was stripped, cleaned, and reassembled.