The HP Photosmart C4280, like HP’s other Photosmart printers, uses ink jet technology to print both in color and black and white. If you notice the printer’s print quality has become splotchy or spotty, you should clean the printer’s nozzles. These nozzles spray tiny droplets of ink onto pages as they pass through the printer. Sometimes the droplets of ink dry and collect in the nozzles, blocking them partially or completely. HP’s Solution Center software will clean the printer’s nozzles, freeing them of any dried ink deposits. Tips
