#NI
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Unknown brand name #642 printer ribbon
Part #BM97
The manufacturer no longer makes this part, and there's no substitute part
Model # 3770 Official IBM printer
Here are the diagrams and repair parts for Official IBM 3770 printer, as well as links to manuals and error code tables, if available.
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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.
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