First, thanks for the reply. Here is a quick wrap up of the 7700 that I am having problems with. It had suffered bad damage and almost all major parts were replaced including the two main circuit boards. I have a service manual and the printer is functional, but I can't get the colors to align properly. I try Regicon test #4 with the DIP switch 2 down and it restarts itself. It seems to be in the warm up phase for 3-5 minutes then displays an error 80 message (motor control board). Going back into the service menu and checking the test results show that it passes its test. The motor control board is new so I am hoping that the error message may be caused by some other component. So, I guess that I really have two problems, one with the color alignment and one with the error 80. I would appreciate any suggestions.