Remember when photocopiers just copied what you put on them?
Not any more. Thanks to the miracle of modern software, some models are compressing the scanned image and then printing from the compressed file, which just happens to corrupt numbers during the compression process.
The more software is introduced into simple physical processes, the less robust the world becomes. And we end up with photocopiers which can’t do the very thing they’re designed for: producing a copy of the documents you feed into them.