Pixma 860 won't print black

[BillHaynes]

My Pixma 860 all-in-one printer will not print black.  One or two pages will print in an unreadable light gray but then by the third page fade to nothing.  Changing the two black ink cartridges has not effect.  Going through the Maintenance cleaning operations has no effect. 

[John_B]

Hi BillHaynes! 

Welcome to the Canon Forums and thanks for your post!

To have a better understanding of your issue, please let everyone know what operating system (Windows Vista/7/8 or Mac OS 10.X) you are using and if you are connected via USB or WI-FI. That way, the community will be able to assist you with suggestions appropriate for your product.

Any other details you'd like to give will only help the Community better understand your issue!

If this is a time-sensitive matter, our US-based technical support team is standing by, ready to help 24/7 via Email at Canon Support Site or by phone at 1-800-OK-CANON (1-800-652-2666) weekdays between 10 AM and 10 PM ET (7 AM to 7 PM PT).

Thanks! 

[BillHaynes]

Using Win 7 connected via USB.  The failure to print black was sudden.  I can't think of anything else pertinent.

[Michael]

Hello.

Troubleshooting with our support group will have to be done to narrow down the cause of your issue. Please contact our support group using the "Contact Us" link below for additional assistance.

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