HP Officejet PRO X551dw printing issue

[fbc0026]

Hello,

 My HP Officejet PRO X551dw printing issue is that approximately one inch of the print quality is missing. I have cleaned the duplex unit and ink cartridges using isopropyl alcohol to no avail.When I print I continue to see @1" of the print missing through the entire page. I have run all the diagnostic tools @8 times and still continue to have the same issue. Please advise if and if the brand new ink cartridges need to be replaced or if there's another issue I am not seeing to help resolve this issue.  I would have attached a screen shot of what is happening but cannot do so. Thank you. 

[Bob_Headrick]

Unfortunately it appears you have a failure in the printhead for your HP Officejet Pro x551dw.  I suggest you Contact HP for repair or replacement options.  You can check your product warranty here.

[fbc0026]

Hello,

can you please advise what this print head looks like? Is it part of the duplex unit?

Thanks!

[Bob_Headrick]

The Officejet Pro X551dw is a very large assembly built into the printer.  Unlike other Officejet models that have a printhead that moves side to side across the page while printing, this printhead is very large ( the width of the paper) and fixed in place.  I do not believe the printhead is a user servicable part, you will need to contact HP for service.  

The printhead is about a foot wide and looks something like this:

[fbc0026]

Hello,

Thank you for your response. I am hesitant to contact HP. Last time it cost me $35 to ask a question and they could not assist me nor would they refund my money. Appreciate your advice though.