Printer MX922 won't print black in photos

[cashtonh]

My MX922 will print black when using the program with plain paper and standard printing but when "Glossy photo" with high printing is chosen all black objects come out light gray.  I have removed the print head and cleaned it but this made no difference.  I purchased this unit two years ago primarily for the DVD/CD label printing feature.  Otherwise, I have been unhappy with it as it seems to always have one problem or the other.  Being experienced with these items, I have been able to keep it printing (with some effort).  After several days of trying, I have given up on it.  I know that the print head is OK.  I have replaced the black cartridges and have tried printing with Photo Shop, MS Picture It and Print Shop, all with the same results.  I have contacted Canon support with no results.  If no answer to my problem is available, I will trash it and never buy another Canon product.  My HP printer is a year older than this unit and still prints perfectly.

[cashtonh]

Omitted the following information from my previous post:  My unit is USB connected, Has been reset to factory reset and I have downloaded and installed latest drivers.

[ArthurJ]

Hi,

So we can best assist you, please let us know what steps Canon support had you perform and also, please attach a copy of a recent nozzle check to your reply. 

We look forward to hearing from you. 

[cashtonh · Accepted solution]

I have solved the problem myself.  In spite of the cleaning I did on the print head it obviously wasn't enough.  I ultimately removed it one last time and allowed it to sit, print head down, in 1/4 inch deep hot water for 15 minutes and then allowed it to dry on a lint free towel for 15 minutes.  It now works perfectly.                               Thanks for Responding

[cashtonh]

I solved the problem before Canon responded, consequently, they provided no support.