maintain your hp fax

4Check the Self-Test Report for streaking or white lines in the color bars. Make sure that the color bars have even consistency and the lines of color extend across the page.

You will find four color bars on the self-test report: black, cyan, magenta, and yellow.

If any color bars are missing, this might indicate that particular print cartridge is out of ink. You might need to replace the print cartridge. For more information on replacing print cartridges, see replace the print cartridges on page 67.

Streaks might indicate clogged nozzles or dirty contacts. You might need to clean the print cartridges or the print cartridge contacts. For more information on cleaning the print cartridges, see clean the print cartridges on page 70 and clean the print cartridge contacts on page 71. Do not clean with alcohol.

handle the print cartridges

Before you replace or clean a print cartridge, you should know the part names and how to handle the print cartridge.

maintain

Ink nozzles under tape

Gold-colored contacts

Plastic tape with pink pull tab (must be removed)

Do not touch the gold-colored contacts or the ink nozzles

replace the print cartridges

A message appears on the front panel display to let you know when the ink level for the print cartridge is low. When you receive this message, it is recommended that you have a replacement print cartridge available. You should also replace the print cartridges when you see faded text or if you experience print quality issues related to the print cartridges.

For information on ordering replacement print cartridges, see order print cartridges on page 61.

user guide

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HP 1240 manual Handle the print cartridges, Replace the print cartridges