Inkjet printer
An inkjet printer is a printing apparatus printing an image by spraying ink stored in a print head through nozzles. Inkjet printers are one of the most widely used print technologies, providing low cost, high speed, and high resolution printing. A typical inkjet printer reproduces an image by ejecting small drops of ink from the printhead containing an array of spaced apart nozzles, and the ink drops land on a receiver medium at selected pixel locations to form round ink dots. The ink jet printer uses a print cartridge including the print head and the ink. In the inkjet printer, information data for printing the images is transferred to the print cartridge through a portion of the print cartridge, wherein the print cartridge contacts a cartridge shaft along which the print cartridge is moved. The inkjet printer comprises a heater driving control unit for controlling a width or waveform of a driving pulse to drive the ink ejection heater according to a temperature of an ink cartridge head. The inkjet printhead may be incorporated into a carriage type printer, a partial width array type printer, or a pagewidth type printer. In the ink jet printer, the amount of liquid to form ink droplets to be ejected is adjusted by causing degree of distortion at the piezoelectric element by changing the amplitude of the pulse voltage applied to the piezoelectric element. Inkjet printers perform a printing operation using a direct current (DC) motor. They generate information related to positions and a fire signal of a head using a sense signal output from an encoder sensor installed behind a carriage. A color inkjet printer these days carries four arrayed recording heads on a carriage for spraying ink of each process color of yellow (Y), magenta (M), cyan (C) and black (K). By moving the carriage over the recording medium (back-and-forth movement), the inkjet printer is capable of recording a full-colored image easily.
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