A typical thermal print head used in Canon plotters has 2,560 nozzles per color, with matte black having 5,120 nozzles because two matte black cartridges are required. Thermal print heads are compatible with aquas or water-based inks.
Once the ink is expelled, the chamber rapidly cools down and the process repeats. The air bubble is then exploded as it's forced through the print heads nozzle. Instead of using a membrane to build pressure and force ink out onto paper, heat is used to boil the ink and create an air bubble of ink vapor. Thermal inkjet print heads, currently used in Canon and HP inkjet printers, use heat and water-based inks for printing. Should the piezo print head need to replaced, it is more expensive and requires an authorized service technician. Piezo print heads have a longer lifespan and are designed to last for the life of the printer (generally around 3-5 years).
Piezo print heads can control the size of the ink droplet, which can increase print resolution in some applications when smaller droplet sizes are used. A typical Piezo print head has 720 nozzles per color which can require multiple passes and may slow down printing speed. Compatible inks include water-based, oil, eco-solvent and solvent based inks. Piezo print heads are compatible with a wide range of inks since they don't use heat in the printing process. Being able to quickly vibrate and flex the film allows for more precise control of how fast the ink gets pushed out of the nozzle. The vibration causes the film top flex and bend, building up pressure and forcing the ink from the nozzle onto the paper. Instead, Piezo print heads feature a layer - usually a thin film – that is exposed to an electric charge that causes the film to vibrate. Piezo print heads don't use heat to force ink out of the nozzle. Piezo inkjet print heads are currently used in Epson inkjet printers including both their small format and large format printers. While both are drop-on-demand print heads, the ways they move ink into and out of the print head are different. Currently, there are two main print head types, each using a different method for spraying ink. Different manufacturers use print heads with different technology. Though they all do the same basic job, not all print heads are the same. Inkjet print heads spray ink onto paper or other media in a controlled manner to produce the desired image.īut how exactly do print heads work? Are all print heads created equal? Modern print heads don't touch the media being printed on reducing mess and lowering the cost of printing. The process was often messy and expensive and the presses were very large. Before print heads came around, prints were made on printing presses that made direct contact with the media. Modern print heads contain chambers that get fed ink and tiny nozzles that spray out ink. Small and large format inkjet printers all feature print heads that deposit ink on all of various types of media. Every inkjet printer on the market has one thing in common: a print head.
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