Installing and setting up the G20i on your production line is quick, simple and doesn’t require any technical expertise. The system is virtually service free and needs no service or maintenance contracts to keep it printing. Ink cartridge changeover is easy, quick and clean.

  • Easy to self install
  • Easy to configure
  • Easy to change ink cartridges

How to install, set up and use your Case Coder

Explore the range of guidance videos


Kit Components








How to adjust the sensor


Setting expiry and julian date


Creating a custom string


How to update language


Update firmware without a keyboard


How to install G20i inkjet coder driver


Special character entry with app


Answers to common questions

You can connect to the printer in three different ways: - Through a Windows based connection to a PC - Using the Bluetooth wireless keyboard included in the box - With the Android application available to download on any Android (v4.0 or above) device

Download the app from the Google Play website.

There is space in the G20i memory for 3 fonts. You can change these fonts via the PC application.

The on board controller supports English (default), Simplified Chinese, French, German, Spanish, Russian, Portuguese, Korean, Polish and Vietnamese. The Android app additionally supports Thai, Indonesian (Bahasa), Japanese.

Asian and Chinese characters can be downloaded using the PC connection.

The printer is not designed to work with Check Weigh applications.

The G20i is fully compliant to all health and electrical safety regulations and Bluetooth admitted in all countries where it is sold.

The printer is designed as a stand alone printer and is not intended to be networked. For network applications the G130i Thermal Ink Jet printer is ideally suited.

TIJ stands for Thermal Ink Jet – a process where ink droplets are heated and as the ink expands it is ejected from the nozzle. This is a very accurate, fast and controllable technology.

Simply open the latch on the printer that holds the cartridge in place and remove any empty cartridge; then take the plastic protection clip off the new cartridge and slide the cartridge, electrical connectors facing down, nozzles facing forward into the slot; Ensure the cartridge is firmly located and close the latch. See the installation video to watch a cartridge being inserted.

The prints per cartridge depend on many factors including the size, complexity and font of the message being printed. The printer will give you an indication of the number of prints that can be made, based on each individual code created.

The printer is able to print a wide range of barcode types. For a good barcode quality the line speed needs to be consistent. For lines which vary in speed an encoder is required.

The G20i is not supplied with an encoder; but industry standard encoders can be supplied and fitted by your supplier. Details on how on the correct encoder to use is give in the advisory note Guidance on Encoder Use.

The G20i is not supplied with an alert beacon, however these can be sourced from your supplier. Details on how to install a beacon can be found in the product manual.

Thermal Inkjet technology can print up to 600 x 600 dpi. For outer case coding applications image output of up to 300 x 300dpi is recommended.

Changing the language of the printer is an easy task from a menu option on the printer.

No, the printer does not have to be switched off, although the printing function should be stopped and restarted after the new cartridge is installed.

The printer can print at a maximum speed of 180m/min (590 ft/min) at 100 dpi horizontal resolution to 30m/min (98 ft/min) at 600 dpi horizontal resolution.

The maximum power output is 48W.

The maximum amount of fields and characters that can be added to one message is: 20 logos per message 6 lines with up to 150 characters per line 6 counters 2 clocks 5 shift codes

The limit is 100 messages that can be stored on board the G20i.

Yes, one keyboard can be used for several G20i printers, but the matching dongle needs to be connected to the printer. As each keyboard is matched to the bluetooth dongle that is supplied with the keyboard, the keyboard will only work with this dongle. To use the keyboard on another G20i printer the dongle will need to be plugged into the G20i printer.

The G20i printer can support over 110 different barcode types. For the full list of supported barcodes please go to the product manual for the printer.

Ensure the printer is using the latest firmware version. Any G20i printer running a firmware version beginning with 3 should be upgraded to Any G20i printer running a firmware version beginning with 7 should be upgraded to

TBN002 – Installing G20i Driver on Windows 10 PC

Technical and Sales information

Find all the information you require about the G20i: Manuals, Declaration of Conformity, Brochures and Material Safety Data Sheets (MSDS).

Need more information?

If you need any other information on the G20i or any other product in the Domino range, please contact your local distributor or Domino subsidiary. Alternatively you can send your questions to our support team who will be happy to assist or fill in the form on the right and we will get in touch with you as soon as possible.