If the invoice print jobs not going through in BUSY on some systems, it colud be the below reasons:
1. Check for printer connectivity issues.
2. Verify printer settings for accuracy.
3. Update outdated printer drivers or check for compatibility issues with the operating system.
4. Ensure that printer connections are working correctly.
5. Select the appropriate printer, update printer drivers, and confirm software compatibility with the operating system.
By addressing these factors, you can resolve issues related to invoice printing in BUSY.