bad photocopy; poor copy
Specifically a photocopy that came out poorly (blurry, skewed, too dark/light). Used in printing and office contexts.
This bad photocopy is unreadable because the letters are smudged.
miscopy; incorrect copy
A copy that is wrong in content, not just quality; e.g., a duplicated document with missing pages or a digital file copied incorrectly.
The file was corrupted due to a miscopy of the data.