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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:

  • Use a soft cloth moistened with mild detergent and water to clean the printer case.

  • Do not touch the rollers, as skin oil might result in poor print quality.

  • Using other cleaners, such as alcohol or alcohol-based cleaners, can damage the printer.

Clean the printer as follows:
  1. Turn the printer off, and unplug the power cord.

  2. Open the top cover.

  3. Clean dust or dirt from the paper feed guides using a soft, dry, lint free cloth.

  4. Close the top cover.

  5. Plug in the power cord, and turn on the printer.

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:
  1. Open the Toolbox: Click Start, point to Programs, hp deskjet 9300 series, and then click hp deskjet 9300 series Toolbox.

  2. Click the Printer Services tab.

  3. Click Align Print Cartridges.

  4. Follow the onscreen instructions to align the print cartridges.

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:
  1. Open the Toolbox: Click Start, point to Programs, hp deskjet 9300 series, and then click hp deskjet 9300 series Toolbox.

  2. Click the Printer Services tab.

  3. Click Clean Print Cartridges and follow the onscreen instructions.

  4. If the printout still has problems, repeat this cleaning process.

  5. If the printout is still unsatisfactory, use a new print cartridge.

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:
  1. Turn on the printer.

  2. Open the top cover and the print cartridges will move to the center of the printer.

  3. Unplug the power cord.

  4. Remove the print cartridges from the printer.

  5. Clean the electrical contacts on the print cartridge cradle with a dry cotton swab. Slightly moisten the swab with water if dried ink cannot be removed with the dry cotton swab. Dry the contacts with a clean, soft, lint-free cloth.

  6. Clean the electrical contacts on the print cartridge with a dry, lint-free cloth. Slightly moisten the cloth if dried ink cannot be removed with the dry cloth. Dry the contacts with a clean, soft, lint-free cloth. To prevent damage to the electrical contacts, wipe the contacts only once. Do not wipe the ink nozzles on the print cartridge.

  7. Reinstall the print cartridge.

  8. Plug in the power cord and turn on the printer.

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