Error B200 means the printhead voltage or temperature is not normal. The Printhead could be defective.... but first, try these solutions below:
- Disconnect the power cable from the printer.
- Wait 1 hour.
- Connect the power cable
- Check and Clean Head contact pin condition of the carriage unit
- Check Cable connection especially the carriage FFC
- Turn off the power
- Open the panel
- Turn on the power
- Wait for print carriage to start moving to the left.
- Let it go past half way
- Before print carriage reaches left hand side shut the cover.
- Leave the Printer turned on
- Unplug the power cable.
- Open the printer
- Push the whole print head mechanic to the center
- While the printer still open, plug the power and turn it ON.
- When the printhead still moving and is going to the very LEFT, close the cover.
- Wait until its boot up.
- Take out all of the ink cartridges
- Lift up the grey bar by where the ink goes
- Left the print head in the middle of the printer all while the printer was off.
Solution 4b (thank you Jeremy):
- Clean the plastic head primers/cleaners themselves on the printer (the far right)
Solution 4c (thank you Rhiann):
- Turn off the printer
- Open the cover
- Turn on the printer
- Wait for print carriage to start moving to the left and let it go past half way
- Before print carriage reaches left hand side (but after going halfway across) shut the cover.
- Leave the Printer turned on.
Solution 4d: (thank you John Wittman)
- My Canon MX860 locked up with the B200 error when I continued printing without black ink. I removed printhead as described elsewhere and carefully flushed with hot tap water until no further ink waste was present. Reinstalled, but this did not resolve the B200 message and lockout.
- Removed printhead again and this time removed 2 small screws (with jeweler's scredriver) on printhead to dimantle it. Use care to protect the ribbon cable. Do not try to remove this cable. You will see a complex rubber gasket. Remove this and clean with hot water. Set aside.
- With screws removed, this will give access for more cleaning of the ink passages. Used hot water, then isopropal alcohol to wash, and finally a small (1/4") soft rubber tube to gently blow out water/alcohol from the printhead body. Be careful to not touch or push on the ink jets (little metal strips - large set for color; second set for black printing). Dried parts and reassembled. Carefully replace the gasket so that it fits over the plastic tips of the several ink ports.
- Error B200 has disappeared
- Ran printer maintenance from the PC: head deep cleaning, regular cleaning 3 times and head alignment check. Gradually print quality has been restored as ink has flowed into the printhead cavity and to the ink jets.
- Replace the power supply unit.
- Replace the logic board.