To resolve this issue, we will want to add the following URL's to you Trusted Sites in IE.
  1. In Internet Explorer, click Tools or gear icon.
  2. Select Internet Options
  3. On the Security tab, click Trusted Sites.
  4. Enter the following sites:
    • https://*
  5. Click OK
  6. Click Apply, click Ok.
  7. Close Internet Explorer and reopen.
If you still experience issues, please reference Itemized receipts or tickets are not printing (includes video demo) to ensure your printer has been configured correctly in Altru.