Compare thermal bubble jet print head and piezo electrically actuated inkjet printhead

Posted on by DIY InkJet

(a) a thermal bubble jet print head and (b) a piezo electrically actuated inkjet printhead.

 Epson’s Micro Piezo TechnologyThermal bubble jet technology
How to spray inkPiezoelectric substances use mechanical pressureThe ink is sprayed by creating and spraying air bubbles after heating the ink
EfficiencyThe machine controls the ink movement with voltage, for high-speed and multi-size drops of inkReach high speed by increasing the number of sprays
ResolutionThe Micro Piezo printhead accurately generates ink droplets of up to 5 sizes, resulting in sharper, smoother prints with quieter tonal gradations.Thermal inkjet printers can achieve up to 2 different droplet sizes by using print heads with different sized nozzles.
Ink compatibilityMicro Piezo printheads operate at low temperatures making them compatible with a wide range of inks such as powder inks, pigment inks, solvent inks, and UV inks.Limit the type of ink used due to the use of excessive heat. The machine cannot use UV and water based inks because they are volatile at high temperatures.
LongevityEpson Micro Piezo printheads operate at much lower temperatures than thermal nozzles, thus extending the printer’s life even more. None of Epson’s inkjet cartridges require an attached printhead, thereby saving the user’s cost of ownership.Most printers have thermal printheads that need to be changed frequently, as operating temperatures are too high, which is detrimental to long-term use. As a result, thermal ink cartridges often come with expensive print heads and users have to replace the printhead every time the cartridge is replaced.

×