Setting up Epson & Star OPOS with a Cash Drawer - Cloud Retailer and RMS

Modified on Thu, 29 Feb 2024 at 11:43 AM


Use the latest version of the ADK installer only for new printers. If you are installing an old printer, use the ADK280ER14.exe installer.


Be sure you uninstall ANY existing printer OPOS software, including older STAR software from Windows.  This is so there are no conflicts in device name or resources.

Epson Procedure

Version 280ER14


  1. Run the installer and change the target folder to c:\rite, then click Unzip, OK, and Close.
  2. Go to and download and run setup.exe
  3. Go through the wizard screens, and accept the default settings except for the Port selection screen. You must choose which interfaces you want to support for the Epson OPOS devices attached to the computer. Typically, you will need to check the USB port option, but it depends on the printer.
  4. Once the installer is finished, launch the Epson OPOS ADK program from the Start menu.

Adding a Printer

  1. To add a printer, expand the Device tree on the left panel by clicking the plus box, then right-click the POS Printer icon and select Add New Device...
  2. Select the printer's model number from the Select Device Name dropdown, then add an LDN (logical device name) for the printer. This is the name that will be used to connect to the printer's OPOS interface. Use something descriptive like printer or receipt printer. Click Next.
  3. For USB devices, the wizard should automatically set up the TMPORT1 (USB) port.
  4. Click the Check Health Interactive button, then click the Start button. The printer should print a test message and the dialog box should display OPOS_SUCCESS.
  5. Click Finish. Click through any warning boxes.

Adding a Cash Drawer

  1.  Right-click the POS Printer icon and select Add New Device...
  2. Select the "Standard" from the Select Device Name dropdown. From the Select detailed model dropdown, select Standard if the receipt printer is connected to the computer via a serial port; select StandardP for parallel port, StandardU for USB, StandardE for ethernet, or StandardB for Bluetooth. Then add an LDN (logical device name) for the cash drawer. This is the name that will be used to connect to the drawer's OPOS interface. Use something descriptive like drawer or cash_drawer. Click Next.
  3. Select the model of the receipt printer to which the cash drawer is attached.
  4. The TMPORT Settings should be the same as the receipt printer.
  5. Make sure that there is someone by the cash drawer before you test it if you are doing this remotely. You don't want an unattended cash drawer popping open! Click the Check Health Interactive button, then click the Start button. The cash drawer should pop open.
  6. If the cash drawer does not pop, click the Device Specific Settings button and change the Open Status Phase or Connector Pin settings. Click OK and try the previous step again. Keep trying different combinations until the drawer pops.
  7. Click Finish. Click through any warning boxes.

Star Printer Procedure

Have the printer powered off and disconnected from the computer.  You can go ahead and connect the printer to the Cash Drawer.  Check Devices and Printers in the Control Panel and verify it is not installed.  If it is, remove it and remove any drivers for the printer in the Printer Server Properties.

Download the driver from   The install is straightforward, taking defaults.

At this point, connect the printer, and cash drawer and power it on.  The Printer will show up with a Windows driver. Be sure it is not set as the default printer.  

Run the Configuration Utility for the printer. Start-Star Micronics-COnfiguration Utility TSP100

Choose the top - default option and click OK.  You will get an OPOS Settings Window.

In the upper- printer - area, choose Add new.

Highlight the device and click on configure.  Then, click on “Add New”.  Change the name it gives you to “printer”.

Click on Accept.  Click on Check Health.  You will be prompted to apply the changes.  Note: Clicking on the “Apply Changes” at the bottom of the Window does not prevent this prompt.

Click on the Check Health option to do a Health Check. This will cause a print-out to verify the OPOS driver is working.

Repeat the Process for the OPOS Cash Drawer, the only difference being that you change the name to “drawer” instead of “printer”.  These are the names that you will enter for the OPOS devices in your POS.

Note for Cloud Retailer: When setting up a cash drawer for Cloud Retailer, you will want to make sure the "Active" setting is checked to allow for a setting in Cloud Retailer to sense whether a drawer is open or closed.

Do a Check Health on it.  Be sure the cash drawer closed and that it won’t hit anything when it pops open.

Adding to Cloud Retailer:

1. Logged into the Cloud Retailer instance

2. Admin>Device / register list>click into the register in question

3. Add the newly created LDN (logical device name) , assign the device type(cash drawer or OPOS printer>you'll need to set Standard OPOS template for this), and hit save in the top right

4. Sync Cloud Retailer in the sync configuration or within the POS

Adding to Microsoft RMS:

1. Launch Store Operation Manager and log in

2. Database>Registers>Register List>click into your register

3. Assign "OPOS device name" in Cash Drawer 1 and Receipt Printer 1 with the newly created LDN (logical device name) before hitting okay

4. Hit okay and relaunch the POS

TIP! For versions of Windows 7 (or higher), both the OPOS drivers and the POS you use should be installed while UAC is enabled in order to avoid odd permission issues.

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