Before you start
- An original refill bottle that fits the selected tank and has space to receive ink.
- Tape to help keep other tank closures and the bottle in position.
- A second person if needed to support the printer and bottle; a surface protected against ink spills.
The bottle-and-gravity method explained
Professor Printer’s method is to reconnect an original refill bottle to a tank, then turn the printer upside down so ink can flow back into the bottle. He proposes this for removing tank ink, including when the wrong ink has been added.
He explains the method and positions the bottle, but does not perform the inversion or drainage in this recording.
Step 1:Unplug the printer and secure the other tanks
Unplug the printer and remove its paper. The presenter suggests taping the other tank closures down so they do not open and release ink while you work on one tank.
Have a second person help if needed to keep the printer and receiving bottle supported together. Prepare a surface that can contain ink drips.
Step 2:Put the original refill bottle onto the tank inlet
Open the bottle and place it on the selected tank inlet in the same position used for filling. The source prefers an original HP bottle because its opening fits the tank connection. He suggests securing the bottle with tape while keeping it seated.
Use a receiving bottle with space for the ink you intend to remove.
Step 3:Keep the bottle seated while turning the printer over
The presenter instructs turning the printer and attached bottle over together, putting the tank above the bottle. His explanation is that gravity then reverses the normal filling direction, allowing ink to run from the tank back into the bottle.
Keep the bottle in place and check the other tanks for leakage. Work on one tank at a time, as described in the video.
Step 4:Return it upright before removing the bottle
After the intended transfer, return the supported printer and bottle to their upright position before separating them, so an open tank is not pointing down. Close the tank and bottle.
This method concerns the tank reservoir. It does not cover flushing wrong ink from the internal ink path or printheads.
What if you no longer have the original bottle?
The presenter discusses tubing and other bottle openings as possibilities, but does not fit or test an alternative. No tube diameter, substitute cap or guaranteed bottle fit is supplied here. The written method follows his original-refill-bottle approach.
