Cash Drawer Not Opening (Connected via Receipt Printer)

🔍 How It Works

In Tee On, the cash drawer opens through the receipt printer. When a receipt is printed, the printer sends a signal to trigger the drawer.

If that signal is disabled or misconfigured, the drawer will not open.

✅ Step-by-Step Troubleshooting

1. Confirm Proper Setup

• The cash drawer must be plugged into the back of the receipt printer (RJ12 cable)
• It should not connect directly to the computer

2. Test the Drawer Hardware

• Use the key to manually open the drawer
• If it does not open with the key, this is a hardware issue, not Tee On

3. Verify Tee On Is Printing Receipts

• Complete a test sale in Tee On
• Confirm a receipt prints
  • If no receipt prints, troubleshoot the printer connection first
  • If the receipt prints but the drawer doesn’t open, continue below

4. Check Printer Settings in Windows

1. Open Control Panel
2. Select Devices and Printers
3. Right-click your receipt printer (commonly:
   • Star SP700
   • Epson TM-T88 Series)
4. Click Printer Properties
5. Go to one of the following tabs (varies by model):
   • Device Settings
   • Peripheral Unit Settings
   • Cash Drawer

5. Enable the Cash Drawer Trigger

• Locate the setting for Cash Drawer / Peripheral Unit
• Set it to:
  • Open Drawer 1 (most common)
• Apply/save changes

Notes:

• Some printers refer to this as:
  • “Kick-Out Drawer”
  • “Peripheral Unit 1”
  • “Document Bottom”

6. Confirm Correct Printer Is Used in Tee On

• Ensure Tee On is printing to the same printer the drawer is connected to
• If multiple printers exist, this is a common issue

7. Check Printer Driver

• Make sure you are using the official printer driver, not a generic one
• If unsure:
  • Reinstall the correct driver from the manufacturer
  • Restart the computer

⚠️ Common Causes

• Cash drawer trigger disabled in printer settings
• Incorrect printer selected in Tee On
• Generic printer driver installed
• Drawer plugged into the wrong device

🛠 Still Not Working?

Before contacting support, please have:

• Printer model
• Connection type (USB or Network)
• Does the drawer open with the key?
• Does a receipt print from Tee On?