HP Inkjet 78 Print Cartridge Instructions

By Ty Arthur

  • Overview

    After printing off all of those promotional flyers, school papers, instructional manuals, and family photographs your Hewlett Packard (HP) printer will eventually run out of ink and need to have a replacement cartridge installed. The HP 78 ink cartridge fits most of the HP "Photosmart," "Deskjet," and "Officejet" printer models and allows the machine to print off color images and text. Installing HP ink cartridges is a quick and painless process because HP printers have an automatic sliding carriage and come with software that automates the test page printing process.
    HP Inkjet 78 Print Cartridge Instructions
    • Step 1

      Remove the blue strip of tape from the bottom of the ink cartridge. Be sure not to scratch or tear the gold striping on the bottom of the cartridge as it will render the cartridge useless.
    • Step 2

      Pop open the top plastic cover of your HP printer and wait for the ink cartridge carriage to slide over to the left. Push open the small plastic piece at the top of the carriage that has the number 78 printed on it.


    • Step 3

      Snap the ink cartridge into place and then push the plastic top back down until it clicks. Close the plastic top of the printer and a test page should then automatically begin printing.
    • Step 4

      Wait for the test page to print to finish the installation. Open the HP printer software that you installed on your computer when you first setup the printer if the test page does not print.
    • Step 5

      Click on the "Options" or "Troubleshooting" tab and then choose the option to print off a test page. Make sure the test images are all aligned properly and that the ink isn't smudging. Remove the ink cartridge and put it back in if the test page did not print properly. Print another test page to ensure the printer is working properly.
    • Skill: Moderately Easy
    • Ingredients:
    • HP Printer
    • HP 78 Ink Cartridge
    • Tip: Check your printer's manual before buying a 78 cartridge to make sure it is the correct ink cartridge for the printer.
    • Tip: If you need to remove the HP 78 print cartridge from your printer for some reason you should keep it in a Tupperware container in a cool and dry room to prevent the ink from drying out.
    • Tip: The HP 78 print cartridge is available in two versions, the 78A for large volume printing and the 78D for normal print jobs.
    • Warning:
    • Keep the cartridge in it's sealed plastic container until it is needed because the ink can evaporate once it is exposed to the open air.
    • The 78 ink cartridge will cease to work properly if the room temperature ever goes below five degrees Fahrenheit or above 95 degrees Fahrenheit.
    • The ink inside the cartridge will eventually dry up over time so be sure to check the "best by" date on the back of the box before installing the cartridge.

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