No matter how you try, the ink doesn’t come out. The problem happens with the ink (original or not) deposit in the nozzle plate. Because of that, it works as an one-way valve – you can drop ink up to down, but not the other way around.įigure 2: Ink course in the printing head. The ink course is not a straight line, as you can see in Figure 2. PZT, Piezo Electric Element) that, when “energized”, move and expel ink droplets that fall to the paper. The expulsion area works with piezoelectric elements (a.k.a. There has been an arising problem with Epson scanners where the scanner application fails to scan for any documents. ![]() They are known for their robustness and their ability to scan clear documents and images. When the cartridge is reintroduced in the printer, the tube makes a hole in the tape and creates the same pressure seal.Īs you can see in Figure 1, the ink enters through that tube and goes to the head nozzle plate, passing by an ink filter and temporarily stored on the cavity, which is a small ink tank. Epson scanners may either be standalone or may be integrated with a printer facility. ![]() That’s why when someone removes the cartridge (original or not) from an Epson printer, they cover the nozzle with a tape: the tape keeps the ink from flowing. If this vacuum didn’t exist, the ink would certainly flow completely though the head holes. There is a tube (called “needle”) that makes a hole in the cartridge plastic and, by doing so, creates a pressure seal that helps prevent ink leakage and to create a kind of vacuum in the cartridge. Printhead Inkjet Printer Cleaning Kit for Epson Printers - 150mlįirst, let’s study how the system works.
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