Ip90 printer does not print blac on a test after

You probably need a new printhead, but there is also a new update for that machine to help clean the black part of the printhead. QY6-0052-000 is the printhead #

the ink may have become very old. i would suggest you to make a refill again.

If cleaning doesn't help, you may need a shop, there's a firmware update that helps with black printhead cleaning, try a couple of deep cleans first, you can select just black deep cleaning.

Did you try to wipe the cartridge.Maybe there's a clogs. inside.

Here's the link to the transcript..
http://www.fixya.com/support/c36778-black_ink_print_cannon_ip90_printer
Please post your comments there if you are not able to reconnect to the session with me..

I had this problem recently with my IP90. Both the black and color heads were clogged. After running the "canned" routines several times to clean the heads and deep clean the heads...still didn't help...here's what I did:

1. open the top lid to have the cartridges that are inserted in the print head move to the middle of the printer.
2. remove both cartridges
3. What is left there is the print head holder. Slightly move it to the right and gently lift the print head lock.
4. Grasp the print head and lift it out of the tank.
5. Have several paper towels hand and know that you will have color and bw ink on your fingers
6. Put the print head on the paper towel
7. Pour rubbing alcohol on the blk and color heads and let them sit of about 10-15 minutes.
8. after that dry the heads and re-insert them in the printer
9. I put new cartridges in the printer and ran clean and deep clean a few times.
10. My color and black and white print came right back!

Hope this helps.

hi karen,
If you are sure that the ink is present, there two other possibilities: Purge unit work properly so the ink cannot flow down from ink tank or Logic board of you printer is faulty.

can anyone tell me what to do

Have you performed a nozzle test? If one or more of the colors is missing when you do the nozzle test, the printhead itself is likely in need of replacement.

Before considering replacment, perform a clean on the printer. Due to variations between mac and pc, please see your documentation / support files on how to perform the clean on your printer.

After performing the clean, again perform the nozzle check to see if the problem is resolved.

If still not resolved, remove and re-install any cartridges you recently replaced to make certain they are installed correctly.

I have had the same issue with my iP90.  I think this results from the black ink nozzle becoming clogged.  I was able to get mine to print by cleaning the nozzles.To clean the print nozzles open the Canon IJ Printer Utility, select the printer from the list of available printers and click the maintenance button.  Then, select a cleaning or deep cleaning cycle.