I was installing the yellow ink and then all the sudden after I installed it the message Error Oxc18a0301 appeared! How do I fix this?

Shut down your printer by pressing Simultaneously Cancel + OK + Black + Color.
Complete the steps below in the order presented to resolve the problem. It might not be necessary to complete all of the steps.
NOTE: The printer will not operate unless all six ink cartridges are installed. Also, HP cannot guarantee the quality of refilled or re manufactured ink cartridges. Step one: Reset the printer CAUTION: Do NOT perform any other type of reset on the printer before the ink initialization process has been completed.

1. Without turning the power off, remove the power cord from the back of the printer and from the wall socket.
2. Wait 30 seconds and reconnect the power cord to the printer and to the wall socket. Turn the unit on if it is not already turned on.
3. Check the printer for the error message. If the error message still displays, go to the next step.

1. Lift the top cover. Figure 1: Lifting the top cover
2. Locate the ink cartridge indicated in the error message. Squeeze the gray tab below the cartridge slot to release the latch and then lift the latch. Figure 2: Unlatching the cartridge 1 - Black cartridge 2 - Color cartridges
3. Remove the cartridge indicated in the error message. Figure 3: Removing the cartridge
4. Gather the following cleaning materials:
   • Distilled, filtered, or bottled water. Do not use tap water, alcohol, or platen cleaners.
   • Lint-free cloth or swab. Eyeglass wipes and coffee filters work well.
5. Lightly moisten the swab or cloth and squeeze out the excess moisture.
6. Holding the cartridge by its handle, wipe the copper contacts. Figure 4: Wiping the contacts (1) - Copper contacts
7. Replace the cartridge and then close the latch and the printer top cover.
8. Check the printer for the error message. If the error message still displays, go to the next step.
   NOTE: The printer may take up to 15 seconds to clear the error and recognize the cartridge after closing the cover.