Riso ComColor X1 series Technical Manual page 261

17) Pull the Negative pressure ink tank gently forward to disengage from the Ink supply unit.
<Watch out for the small amount of ink which may drip, when the tank is pulled out.>
18) A rubber O-Ring may stay inside the Heat exchanger tower. If so, take out the O-Ring from the tower.
Caution:
<Make sure to remove the existing O-Ring out from the Heat exchanger tower, or it will cause ink
leakage when the new O-Ring on the new replaced Negative pressure ink tank pushes over the
existing O-Ring which should have been removed.>
Precaution in Assembly:
1) Confirm that there is an O-Ring attached on the port on the Negative pressure ink tank.
2) Coat the port, on which the O-Ring is attached, lightly with the ink of its color to act as lubrication and then
firmly insert the Negative pressure ink tank into the Ink supply unit tower.
3) The Ink drainage tube under the Heat exchanger should be replaced with new drainage tube, which is
included in the Negative pressure ink tank spare part kit.
<Make sure to make good Z-shaped bend on the each drainage tube to prevent ink leakage.>
4) Add the Joints on the cut tubes.
<Straight joints are for the tubes to the ink supply.>
<Right-angled joints are for the tubes to the Ink bus.>
5) The right-angled joints should face in the direction as shown on the photograph below.
6) The tube Clips on the straight joints and bottom Clips on the right-angled joints should all face forward.
The top Clips on the right-angled joints should face up.
7) Mount the Common air chamber on the Overflow pan.
8) Connect the Air tube on the Common air chamber to the Negative pressure ink tank air valve.
9) Connect the 4 Air tubes between the Common air chamber and Negative pressure ink tanks.
<Make sure to keep the Caps on the Common air chamber ports plugged for those ports not used on the
chamber. Otherwise the air will go into the Common air chamber and the ink will overflow.>
10) Hook the Air tube of the replaced Negative pressure ink tank in the tube guide on the Ink tower.
11) The Clips for the 4 Air tubes attached by step-(9) should all face to the left on the Common air chamber ports.
12) Mount the Bellows unit back on the machine and connect the Air tube between the Bellows unit and Common
air chamber.
13) Confirm that all the parts are mounted back on the machine.
Confirm that all the Ink tubes and Air tubes are mounted correctly.
Confirm that both the Air valves for the Pressurized ink tank and Negative pressure ink tank have the black
rubber cap on the top.
Confirm that all the electrical connectors are connected.
14) Follow the instruction on the Initial Ink Filling and fill the machine with the ink.
The photograph shows the following:
The photograph shows all Joints replaced, but in
actual, it would be only for the replaced tank.
[ 11A-49 ]
Ink Flow Section
- How the right-angled joints should face.
- How the tube joint Clips should face.
ComColor Series (Revision 2.4)