Minolta photocopier

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Hello everybody,
I have a problem with a friend's photocopier which has
no manual
the machine does not respond to any command at all after
initializing.the copier is a Minolta 1080 machine there is this symbol
a small rectangle
with a circle in the middle of the lower edge like this

l-----l
l--O--l (sorry for the poor diagram)
It has turn red but b4 then it was green. Any help please. Thanks in
advance