Pro 7900 and 9900 Field Repair Guide 10/6/10
Ink Bay (Right) Removal Printer Component, Software Item, LCD Display, Printer Button Page 128.
6. Remove the Ink Tube Guide.
1. Free the Ink Tubes from the Ink Tube Guide.
2. Squeeze in to release 2 Interlocks.
3. Rotate the Ink Tube Guide up to remove.