Printers

Hello, thanks in advance for reading this! I was replacing the printer
actuator modules on my Genicom 4440 but something is wrong. I get them all
lined up and tightened down, but I can't move the striker bar. If I remove
(or loosen) the far left module I can move the striker bar again, but of
curse that won't work. Is there something I'm missing here? Any help is
appreciated - thanks!

Mike