1) Perform ink drainage. Refer to "Disassembly/Reassembly > Points to Note on Disassembly and Reassembly > Draining the ink".
2) Remove the right cover, front cover, and right ink tank cover.
3) Remove four screws [1], and then remove the support plate [2].
4) Remove four screws [1] and disconnect two connectors [2], and then remove the cable from the cable guide. Then, remove the joint [3] between the ink tube unit
and ink tank unit carefully and remove the ink tube from the guide, and then remove the right ink tank unit [4].