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Receipts Stopped Printing
If your receipts were printing previously but have stopped, follow these steps to get things working again.
1. Confirm Your Computer is Connected to the Printer
Before checking PrintNode or Corksy settings, ensure the computer is connected to the printer and it can successfully print a test page.
On Windows:
Go to Control Panel > Devices and Printers
Find your printer (e.g., Epson TM-T20III or Star TSP143IIIW)
Right-click and select Print Test Page
On Mac:
Open System Settings > Printers & Scanners
Select the printer
Click Options & Supplies > Utility > Print Test Page
If the test print does not work:
Check cables or WiFi connection
Restart the printer and your computer
Reinstall the correct driver
Try a different USB port or network
If the test page still fails, contact your printer manufacturer directly:
Epson Support: https://www.epson.com
Star Micronics Support: https://www.starmicronics.com
If the test page prints successfully, continue below.
2. Check PrintNode Client Status
Locate the PrintNode icon in your system tray (Windows) or top menu bar (Mac)
Click the icon to open the PrintNode app
Note: PrintNode does not open from your Applications or Start Menu. It must be accessed from the background bar.
3. Verify the Printer is Listed in PrintNode
Open the PrintNode client
Make sure your printer appears under Available Printers
If it doesn’t:
Reconnect the printer
Restart your computer
Relaunch the PrintNode app
Reinstall the printer driver
Follow the printer setup guide if needed
4. Restart PrintNode
Right-click the PrintNode icon
Select Quit PrintNode
Reopen the app from the tray or menu bar
5. Verify the Printer is Connected to the Corksy POS User
Each Corksy POS user must have a printer assigned to their user account. To check:
Log into Corksy POS
Go to ☰ Menu > Settings > Printer Settings
Ensure the correct Printer ID and API key are entered
Verify your user account is assigned to that printer
Without this step, printing will not work—even if everything else is correctly set up.
6. Test Print from Corksy POS
From the Printer Settings page, click Print Test Receipt
If everything looks right but receipts still don’t print, contact hardwaresupport@corksy.io and include:
A screenshot of your PrintNode app
A screenshot of Corksy POS printer settings
Your printer model and connection method (USB, WiFi, or Ethernet)
Computer Won’t Connect to the Printer
If your computer doesn’t detect the printer at all:
Recheck USB, Ethernet, or WiFi connections
Restart both the printer and the computer
Try different ports or cables
Reinstall the correct driver
Confirm the printer shows up in your system settings
Follow full connection steps here: Connecting Epson & Star Printers (Windows/Mac)
If you still can't connect, please contact your printer's support team:
Epson Support: https://www.epson.com
Star Micronics Support: https://www.starmicronics.com
Receipts Are Printing Too Small
If your receipts are printing with tiny text or compressed formatting:
1. Adjust Corksy POS Settings
Go to ☰ Menu > Settings > Printer Settings
Try changing the page size
2. Adjust PrintNode Preferences
Open the PrintNode client
Select your printer
Look for print scaling, margin, or paper size options
Settings vary by printer model and operating system
3. Check System-Level Printer Settings
On your computer, open printer settings
Make sure the default paper size is set to 72mm or Receipt
Still Need Help?
If you’ve gone through the steps in this guide and still have issues, feel free to reach out.
Email hardwaresupport@corksy.io and include:
PrintNode client screenshot
Corksy POS printer settings screenshot
Your printer model + connection type