1. Read This First 
1-1. Precautions 
 
Please observe the following precautions before using your printer. 
  GT-3 represents the common specifications of GT-381, GT-361 and GT-341 models. The individual 
specifications are described with each model name.   
  Please advise the following to your customers who buy your printed materials: 
  Printed colors may transfer when a printed surface rubs on white or light-colored synthetic leather 
made of PVC (polyvinyl chloride). When printing CMYK-only garments, the CMYK ink may transfer 
to the White-only printed garment when they rub against each other. In those cases, clean the 
stains with a soft cloth or toothbrush with a household cleaner or alcohol. 
  Wash away the pretreatment halo marks.   
  The printer is designed to be used within the temperature and humidity levels below. Less humidity may 
cause ink clogging in Print Head nozzles and higher temperature may cause splashy print result. Use 
the printer within the range of our recommendation for the best print result.     
 
 
 
  Do not pull out Ink Cartridge(s) during the operation; it may result in poor print quality or cause damage 
to your printer. 
  Do not turn off your printer, or open the Front Cover during the operation; otherwise the printer may be 
damaged or spoil the print job. 
  Be careful in handling a printed T-shirt that has not yet fixed by heat. Ink is difficult to wash from stained 
clothes. 
  Clean the Caps and Wipers, replace the Wiper Cleaners, Fan Filter, Roller Felts (4), Flushing Plate Sponge (top) 
and Flushing Plate Felt (bottom) according to our maintenance schedule to maintain good print quality. 
Replace them when you see the warning indicated on the display. Print quality may be damaged by insufficient 
cleaning, e.g. dirty printed materials, mis-firing. 
  Never use alcohol when you clean Head Caps and Wiper Blade; it will cause damage to the Print Heads. 
Use Wash Liquid when you clean around the Print Heads.   
  Install the Ink Cartridges in the correct positions as shown. Confirm both the colors of labels on your 
printer and the Ink Cartridges. 
  The printer indicates empty status "Empty XXXX (color)" when the ink cartridge is used up. Replace with 
a new Ink Cartridge. Make a new Ink Cartridge available when the icon on the Operation Panel starts 
blinking. A small amount of ink remains to avoid damage to your printer.   
  New consumables should be stored away from direct sunlight until they are required. Use up the Ink 
Cartridges, Pretreatment and Maintenance Solution before the expired date, and CMYK inks should be 
used up within six months after opening the new one.   
 
Temperature  Humidity 
Keeping your printer 
32 °F to 104 °F 
20 % to 85 % 
Operating your printer 
50 °F to 95 °F 
(10 °C to 35 °C) 
45 % to 85 % 
(no condensation) 
For the best print result 
64 °F to 86 °F 
(18 °C to 30 °C) 
GT-3 Series 
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