HP 912 ink cartridges in single tank design with chip

Here are step-by-step instructions for refilling your HP 912 ink cartridges:

Preparation

• Prepare a clean, wipe-clean work surface
• Put on rubber gloves to protect your hands
• Have paper towels handy

Materials needed

• HP 912 ink cartridge
• Refill ink in the appropriate color
• Syringe with needle
• Adhesive tape

1. Prepare the cartridge

• Carefully remove the label on the top of the cartridge. There is a small opening underneath.

2. Expose the filling opening

• Clean the area around the opening with a paper towel.

3. Fill in ink

• Fill the syringe with the appropriate ink.
• Carefully insert the needle into the opening.
• Slowly inject about 4 - 5 ml of ink.
• Stop when you feel slight resistance.

4. Close the cartridge

• Close the opening with a small piece of tape.

At the end, carefully remove any excess ink with a piece of kitchen paper and put the cartridge back in the printer.

• Do not overfill the cartridge as this may cause unwanted ink leaks.
• The printer's ink level indicator may not update.
• For best printing results, use high-quality refill ink designed for HP printers.

Refilling your HP 912 ink cartridges can help you save money while helping the environment. If done carefully, you will continue to get high-quality prints.

To deactivate the ink level on an HP printer that uses HP 912 ink cartridges and to be able to continue printing with refilled cartridges, there are the following options:

Deactivating cartridge protection

• Open the printer menu and navigate to the "Estimated ink levels" item.
• There, deactivate the "Cartridge protection" option or a similarly named setting.
• Important: This deactivation must be done before inserting a new original cartridge. Otherwise, the chip will already be written with the printer information and protected.

Dealing with error messages

When inserting a refilled cartridge, you will probably see the following messages:

• "Original ink used up"
• "No information available on ink level"
• "Replace the cartridge or press --> more information"

Confirm each of these messages with "OK". You can then continue printing despite the warnings.

Alternative solutions

If deactivation does not work, you can consider the following alternatives:

• Replacing the original chip: Replace the chip on the cartridge with an alternative chip.
• Using refill cartridges: Use special refill cartridges, often offered by third-party manufacturers.
• Ignoring the warnings: Just keep printing even if the printer does not display any information about the ink level.

Note that these methods may affect the manufacturer's warranty. Always use high-quality refill ink to avoid damaging the printer.