Some cash drawers comes with a field replaceable cable. The ends of the cable may be labeled for printer and drawer ends. Sometimes this is overlooked, and the ends are reversed. If this is the case, the drawer will not work.
Upon verifying the connections are correct, try the following:
1. If this is replacing an existing drawer (which means the software should already be configured correctly for your printer), you should verify the model is the correct interface for your printer.
2. For new installations, confirm the CONTROL CODES are correct for your printer or printer emulation. Many of today's printers use Epson's ESC/POS language by default. Search for EPSON CONTROL CODES for more information on this.
3. You may need to contact your POS software provider to confirm settings for the drawer. Some software requires the driver to handle opening the drawer or there may be various special instructions to follow for adding the control codes to the software.
4. If all else fails, you may need to contact us for further assistance in troubleshooting this. The drawer may be defective.