Hello atlphoto. I have personally installed this particular system on the 1900. Usually when people run into these issues it is because the lines are not routed properly or there's simply too much slack left over on the lines. When you move your carriage left and right, be sure that there's barely enough slack left over for the carriage to move left and right.
Also, set your tanks on the right hand side of the printer and route the lines with the tanks on the right. Sometimes customers like placing the tanks on the left hand side, but ideally it should only be on the right.
If it's possible, can you send me a picture of the routing of the tubes to our main e-mail? I want to have a look to see what else can be done to prevent this issue from happening. Send it to Sales@cisinks.com
. Include your forum ID so that I know what the e-mail is about.
Also you can give us a call is you'd like. (626) 575 0860.