Canon Calculator; P28-D
Hi there, there are a couple possibilities. First, Remove the cover where the paper feeds out, if there is a ribbon or an ink roller in there it will need replacing. This you can get a staples. The other possibility is, if there is no ribbon or ink roll, it is probably a thermal printer which means is uses a special heat sensitive paper. If this started when you changed the paper, this is most likely the problem. This you can also get at staples!
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