i have a pixma mp970 about 4 years old; it was printing a long streak of black ink on the back of pa

[victoriashaw]

oops - ok, pixma mp970 was doing above, now i just placed a new black ink cartridge and it's saying it can't detect any ink and won't let me do anything else.  maddening!  any suggestions???  thanks! victoria

[Michael]

Hello victoriashaw.

For testing purposes, please remove and reinstall the black ink tank.  Also, make sure that the correct tank is installed in both blacks lots.

If additional assistance is needed, feel free to call us at 1-800-OKCANON.

[victoriashaw]

thanks i'd already done that several times, still no go.  i'll try and call on sunday or monday.  tha;nks