There may be several reasons why your printer does not recognize a specific paper or envelope size. Here are a few steps you can take to help troubleshoot the issue:
- Confirm that your printer is compatible with the paper/envelope size.
- Make sure the paper/envelope is correctly and securely loaded into the paper tray.
- Minimze any other papers in the paper tray that might be preventing the printer from detecting the size.
- Check the printer settings, confirm that the paper size setting matches what you are trying to use.
- If necessary, try accessing additional menu options on your printer to make sure you are selecting the correct size.
- If the options are unavailable, try reinstalling or updating the printer drivers to the latest version.