We are glad to assist you with software issue. Please try this solution:
1. turn off both computer and printer.
2. Unplug both computer and printer.
3. wait for 60 seconds
4. Turn on printer.
5. Turn on computer
6. Print a words document to test the connection.
7. Print your checks.
If you cannot print a document in step 6, please contact your printer vendor. They can give you better support.
Thank you.