- Joined
- Nov 27, 2010
- Messages
- 5,113
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- Location
- Copenhagen Denmark
- Printer Model
- Canon MP990
Your uploaded nozzle check shows no signs of clogged nozzles, only wrong cyan or wrong cyans. When a cartridge is changed the printer does a priming of the cartridges and print head. This will remove most of the wrong ink. One or two regular, not deep print head cleanings will remove the rest of the wrong ink. As the problem is only about wrong cyan there is no reason to change all the cartridges, only the cyan cartridges. You don't need to buy new cartridges, the cyan cartridges can be flushed with distilled/de-mineralized water and dried before refilling with the proper inks.Ok well, i think my next move is going to be to grab a new pack of all 8 ink carts and give that a go, since these originals have been used over a year now, it may be time to replace or refresh them anyways. Should i do another print head flush with warm water? Or would just a deep clean nozzle purge be enough?
I once deliberately installed a photo magenta instead of a regular magenta cartridge in an iP4000 to simulate an error. I had no problems of changing from one ink type to another and back. The priming triggered by the cartridge change, followed by two regular print head cleanings removed residues of the ink that was previously installed.
Don't wash the print head with water. Cleaning the print head outside the printer is always risky, and should not be done unless absolutely necessary. Water left where it does not belong, behind the circuit board and the ribbon cable on the backside of the print head, can create leakage currents that can ruin not only the print head but the logic board in the printer as well making the printer a total loss. If a print head has been cleaned with water or other cleaning liquid outside the printer it is important that it is completely dry before reinstalling it. See this.