If your Star MC-Print3 receipt printer appears to stop printing or receipts are not coming out, you may need to update a printer setting. The steps below adjust a port configuration that can resolve this issue.
Steps
Open Windows Settings and go to Printers & Scanners.
Select your Star printer from the list.
Click Manage.
Select Printer Properties.
Open the Star / Help tab.
Click Configure Port.
Enable the setting Not monitor print end by each printer job.
Click OK and apply the changes.
After saving the setting, try printing a receipt again to confirm the printer is working properly. If the printer still does not print receipts, please contact support for additional troubleshooting.
Tip: You can check if print jobs are waiting in the queue by going to Printers & Scanners, selecting your printer, clicking Manage, and then selecting Open print queue. If receipts are stuck here, clearing the queue and applying the steps below may resolve the issue.