thanks for all information, but I discover others problems. The screw in the back (the nut glue on board in fact) is impossible to tight because glue is broken. And the main problem, all printcore are glue to the frame because of nylon go between all many part. When I tried to lift the switch I turn too far and impossible to go back.
Do you have any idea to remove printcore???? I'm out of business without my printer.
Merry Christmas to you
UM 3 Head Assembly (read all before you start the re-assembling)
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