G20i Operator’s Quick Reference Guide
 
        
           
HEALTH AND SAFETY
• Read the relevant Safety Data Sheet (SDS) before storing, 
handling, transporting or using the ink cartridges.
• Disconnect the power before making any wiring connections.
• Ensure all cables are secured away from moving production 
line components.
• Use only lint free wipes when cleaning the cartridge nozzles.
• Clean cartridge nozzles according to the instructions in the 
product manual available at: www.DominoCaseCoding.com
• Protect the print heads from impact with proper adjustment 
and alignment of side rails and product guides.
• Do not open any enclosed components of the printer or print 
heads. They contain no user-serviceable parts.
• Wear suitable protective equipment when operating the 
G20i.
• The G20i is for indoor use only, do not operate the printer 
outdoors, or in an environment outside of the specified 
operating range.
PRINTER DESCRIPTION
The G20i is a compact thermal ink jet printer, intended to print 
data on user supplied products on manufacturing production 
lines.
The G20i uses a Domino BK640 ink cartridge as the print engine.
The G20i can be controlled with a wireless USB keyboard, an 
Android device via Bluetooth or a PC connected via USB.
For further instructions, refer to the G20i Product Manual
available at: www.DominoCaseCoding.com
SPECIFICATION
  
Length 107.5mm (4.23")
Width 74.5mm (2.93")
Height: 83mm (3.27")
Weight: 450g
Power Supply: 12V, 5.0A, 60W
Maximum Power 
Consumption:
48W
Temperature Range: +5°C to +50°C
(+41°F to +122°F)
Humidity Range: 10% to 90% non-condensing
HARDWARE INSTALLATION
Carry out a risk assessment of the area before the printer is 
installed.
Ensure that the Ground Cable is fitted to the Anti Shock Clamp 
and connected to a suitable ground point according to local 
regulations.
(1)
(2)
G20i Printer
Anti Shock 
Clamp
Ground Cable
PACKAGE CONTENTS
  
  
G20i Printer
  
Base Clamp
  
Clamps x2
  
Anti Shock Clamp
  
Round Bars
  
Screws x10
  
Wireless USB Keyboard
  
USB Cable
  
Power Adapter
  
Tools
  
Ground Cable
INK CARTRIDGE INSTALLATION
(1) Remove the cover from the ink cartridge.
  
(2) Insert the ink cartridge into the G20i.
  
(3) Close the latch.
  
KEYBOARD CONNECTION
(1) Insert the USB keyboard receiver into the USB 
keyboard slot.
  
(2) Insert 2 AAA batteries (included) into the keyboard.
  
(3) Turn on the keyboard.
  
POWER SUPPLY CONNECTION
CAUTION: Only use the power adapter provided.
(1) Plug the power adapter into the 12 VDC socket.
  
(2) Plug the power adapter into a power source.
  
(3) Turn on the power adapter using the in-line switch.