Line Interface Unit (LIU) 1 Open or remove the left side door (page 129). 2 Remove one screw at the left of the formatter board (callout 1). 3 Disconnect the flat flexible cable (callout 2) from the connector. 4 Rotate the LIU around the hooks to remove. 2 2 21 Figure 58. Removing the LIU EN Printer assemblies 141