OPOS drivers


What is OPOS


OPOS, full name OLE for Retail POS, is a point of sale device standard for Windows operating systems that allows point of sale systems to support the hardware that has an OPOS driver.

If your customer (pole) display has an OPOS driver supplied by the manufacturer, you can use it with Reckon Point of Sale. 

To use an OPOS driver:

  1. Install the OPOS driver on the POS Terminal machine, run its configuration application, and note the device name (and COM port if applicable) from that application for your hardware.
  2. In Reckon Point of Sale Terminal, open the Options window and select the tab for the hardware type
  3. Select the OPOS checkbox and select the device name from the Device Name list. If the correct name doesn’t appear in the list, type in the correct name
  4. Select the correct connection for the device from the ‘Connected to’ list
  5. Set other settings on the tab as required


Customer Displays

If the customer display is set to scroll a message when idle, the scrolling may be intermittent at high scrolling speeds.


Changing PORT number

OPOS drivers set the device name, port and other information for the device in the Windows registry.

The registry settings for each hardware type and then device are under:

  • HKEY_LOCAL_MACHINE\SOFTWARE\OLEforRetail\ServiceOPOS, eg. LineDisplay (for customer display)
  • HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\OLEforRetail\ServiceOPOS, eg. LineDisplay (for customer display)


The device name setting in Reckon Point of Sale must be correct for Reckon POS to be able to control the device, however the ‘Connected to’ setting in Reckon POS for OPOS devices is generally only used to check for port conflicts.


Care:  The following steps show you to how to make changes to your Registry.  Use Registry Editor at your own risk. If you use Registry Editor incorrectly, you can cause serious problems that may require you to reinstall your operating system. Please seek advice from a professional IT (Computer) person if you are unsure or have limited knowledge in dealing with system registry. It is highly recommended to backup your registry before making any changes. Click here to read instructions.

Most OPOS drivers default to using COM 1 for serial port connections. If you need to change the COM port and the OPOS driver software doesn’t let you, change it in the registry Port setting for the device:

  1. Press Windows button and R keys on your keyboard OR click click on the search icon from your task bar > type "regedit" to open Registry Editor
  2. Go to the correct hardware type in the registry under HKEY_LOCAL_MACHINE\SOFTWARE\OLEforRetail\ServiceOPOS for 32 bit drivers, or HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\OLEforRetail\ServiceOPOS for 64 bit drivers
  3. Open that registry key and select the correct device name
  4. Double-click the Port string and enter the new port value and save


Tested hardware

Reckon cannot guarantee that all OPOS devices will work flawlessly with Reckon Point of Sale. The following devices were tested using OPOS drivers with Reckon Point of Sale:

  • Partner Tech CD-7220 serial connection customer display
  • Partner Tech CD-7220 USB connection customer display (using virtual COM driver)


Important Information

Once an OPOS driver has been installed, it is safest to leave it installed even if no longer used. If you uninstall an OPOS driver and then get error messages when running Reckon Point of Sale, either re-install the driver or search for the error message in Reckon's Knowledge Browser.

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