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HP Deskjet 9300 Printer - Cleaning and Maintaining the Printer
Cleaning the printer
The printer does not require scheduled maintenance. However, clean the printer from time to time to keep it free of dust and debris. Cleaning might also make it easier to diagnose problems.
Follow these guidelines for cleaning the printer:
Clean the printer as follows:
CAUTION: Do not use a powerful vacuum cleaner such as a shop vacuum or compressed air to remove dust from the printer. Fast moving air can generate static electricity that might damage electrical components.
CAUTION: Do not clean or lubricate the carriage rod. Cleaning or lubricating the rod might reduce its life. The carriage rod is the shaft inside the printer that the print cartridges move back and forth on. Any ink present on the rod will not hinder the operation of the printer.
Aligning the print cartridges
The printer has an automatic alignment feature that aligns the print cartridges whenever they are replaced. If the printout looks blurry, try aligning the print cartridges manually as follows:
NOTE: The print cartridges can also be aligned from the Services tab in the printer driver.
Cleaning the print cartridges
The print cartridges have microscopic nozzles that can clog when exposed to the air for more than a few minutes. The printer is designed to prevent nozzles from drying out when it is idle and when it is turned off by using the Power button.
A print cartridge that is not used for long periods of time can also clog, resulting in a noticeable decrease in print quality. To unclog the nozzles, clean the print cartridges.
Clean the print cartridges if the printed characters are incomplete, or if dots or lines are missing from the printed text or graphics.
NOTE: Cleaning the print cartridges too often wastes ink and reduces the life of the print cartridges.
To clean the print cartridges, do the following:
NOTE: The print cartridges can also be cleaned from the Services tab in the printer driver.
Poor contact between the print cartridges and cartridge cradles might also affect the quality of the printout. When this occurs, try cleaning the print cartridges and cartridge cradles: