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Whether you have a laser printer, or a printer with inkjet technology, it is a good idea to clean your printhead regularly to avoid a clogged nozzle. You can use a commercial solvent to clean your printer's head or hire a technician. Cleaning the nozzles on a printer Keeping your printer's print head clean can help keep it in good working order. Sometimes, nozzles can block and cause streaky prints. It is important that you maintain your printer at minimum once a month. Unplug your printer as soon as possible.