Do You Know How To Solve Clogged Epson Inkjet Printer Head?



These are some possible reasons for Epson Printer clogging: If the print head is exposed to the air for a long period, ink can dry up and block the small opening. Foreign objects (ink impurity or microscopic dust) can block the opening. Some internet instructions advise users to wipe clean the print head with tissues or paper towels, which may introduce blockage to the print head. An air bubble can temporarily block the opening. Air is naturally dissolved in the ink. Fluctuation of room temperature will change the air concentration and thus form air bubbles.

Epson Inkjet Printer Head
Epson Inkjet Printer Head


Changing cartridges also introduces air into the system. (*Note: This is why you should do a print head- cleaning cycle after installing a new cartridge). It may not be a blockage. There are processes that can permanently damage the nozzle; the print head may be scratched and damaged, the print head may have over-heated during a long printing process, or a paper jam may have caused the issue.

Epson Inkjet Printer Head
Epson Inkjet Printer Head


It is a common misconception that pigment ink is more prone to clogging than dye sublimation ink because pigment ink is in the form of suspended particles and somehow the particles aggregate and blocks the print head. Pigment ink from reputable manufacturers has such a small size (0.1 µm) that it is almost impossible to block the opening of a print head jet. This picture shows the relative size of a print head jet opening and a pigment particle (small red dot). Many dye inks are filtered with 0.22 µm mesh which means the particles in the dye ink are twice the size of pigments. The particle size of filtered drinking water is about 1 µm.

Epson Inkjet Printer Head
Epson Inkjet Printer Head


When you perform the head-cleaning routine, some printers have a suction chamber underneath the sublimation printer head which will suck the ink out of the cartridge, thus unclogging the blockage. Some HP cartridges (950, 932) have built-in air bags, which will inflate and squeeze the ink out of the print head, to purge particles and to prevent drying. There is a small rubber wiper to wipe out excessive ink. 

Epson Inkjet Printer Head
Epson Inkjet Printer Head


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