There are few things that can cause blockages, the most common is having the printer set idle for over a long period of time. If it is left plugged in, it will clean itself but without power the ink will dry out inside the head, depending on weather conditions.
Old and poor quality Ink can also cause blockages , particularly the black as it contains powered graphite that settles over time.
Finally, the microelectronics in the head can burn out. Printheads don’t last forever, and the electronics can’t be repaired, so the best you can do is to try to clean the blockage manually or replace it if it still doesn’t work.
Here are the steps on how you can fix HP Officejet pro 6830 printhead problem manually.
- If you suspect your printhead is blocked, the first thing to do is print a nozzle check pattern to find out which colours are affected. Select Tools and then click on Print Quality report.
- If there are any error messages that appear on print quality report those error messages are to be resolved. And then select OK.
- Next select Settings in the menu and then click Ok.
- Now choose tools and click Ok.
- Now in the tools menu select “Clean Printhead” and then click OK.
It is the printer’s self cleaning cycle and your printheads are automatically cleaned. This clears most of the blockage and could be run twice or thrice for better results.
If you still cannot fix the printheads you need to replace the cartridges to a mew one.