Roland VersaCamm VS-640 Service Notes page 175

When you cut the Ink Tube at the rear of the Head
Carriage, it is easy to remove the Ink Tube.
Be careful with the ink in the Ink Tubes when you
cut the Ink Tube.
Remove the Ink Tubes with the Tube Guides from the Holder
17
Cable Plate and the Support Frame.
When you move the Head Carriage to the center of
the machine, you can take out the Ink Tubes easily.
Remove the Tube Guides from the Ink Tubes and fix them to
18
the new Ink Tubes
Holder Cable Plate
Support Rail Frame
Tube Guide
3-102