Here are some steps to troubleshoot why your printer is not responding to print commands from a specific file format:

1. Check to see if the printer is fully functioning by completing a test print.
2. Verify that the file format matches the printer type.
3. Check the physical cable connections between computer and printer.
4. Check that the device driver is up-to-date and installed correctly.
5. Install the latest printer drivers from the printer's manufacturer.
6. Check for any potential software conflicts.