(*Note: This is why you should do a print head-cleaning cycle after installing a new cartridge). Changing cartridges also introduces air into the system.Fluctuation of room temperature will change the air concentration and thus form air bubbles.An air bubble can temporarily 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. Foreign objects (ink impurity or microscopic dust) can block the opening.If the print head is exposed to the air for a long period, ink can dry up and block the small opening.These are some possible reasons for clogging: The ink is designed to dry fast so as not to smudge. During printing, the machine squeezes out microscopic (picoliter) ink droplets. The print head is like a water tank with a very tiny opening. The mechanics behind clogging are simple. Today, I describe the unclogging process from an ink supplier’s perspective and hope it will be helpful to household users. Such tips range from helpful to detrimental for the printer. There are many tips on the internet about unclogging the print head. If you are experiencing a decrease in print quality, missing lines or blank pages while trying to print, this may be the issue. Some common problems in printers are indicative of print head clogging.
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