moves the printheads back and forth across the width of the page, carefully controlling the position and speed of the printheads. As the printheads traverse the page, they fire ink droplets from the nozzles to the surface of the page to form the images and characters of the printed page. The nozzles are positioned just above the surface of the page, the exact distance is important and is called the pen-to- paper spacing (PPS). Each nozzle can fire ink droplets to the page at a rate of up to 36,000 times per second. The ink droplets are absorbed and the page is transfered to the output mechanism. As the page exits the printer, it is dried by the post-heater, then ejected into the output tray.
After completing a print job, the carriage and printheads return to their original parked position, beyond the edge of the paper path, where the Service Station performs maintenance. The printhead nozzles are fired to clear the nozzles of any ink residue and then wiped to remove any remaining ink deposits. 4-8 hp restricted support