I have a pixma pro9000 mark ii that is about 8 years old but I use extremely sparsely -- I basically print a couple of pictures for family around christmas time. every year I do a "cleaning" (from the maintenance menu) and several "nozzle checks" printouts until the colors patterns look good.
This year, I can't seem to get one of the colors (PM) on the nozzle check to show up, while all others are ok.
- I've replaced the ink cartrige
- I've done the maintenance "cleaning" and "deep cleaning" cycles several times.
- I've manually cleaned the head twice nozzles (on two different days) by removing it, carefully pushing water and air through the nozzles, cleaning, and waiting. Every time the nozzle check after cleaning prints out ok the second/third time, but then after printing 1-3 photos the colors go all crazy again, so i print a nozzle check and that color (PM) is gone again (https://imgur.com/a/d2tvwXH)
Any suggestions at this point?
You have done all the maintenance steps I would recommend and since the issue is not resolved, there may be a problem with the print head and would need to be replaced.
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