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printer won't print in black and white

HP Recommended
office jet 7500A E910 wide format printer all in one
Mac OS X 10.9 Mavericks

Printer won't print in black and white. Color seems to be working. I cleaned the printhead, more than once. Still doesn't print black and white. What else can I do to fix the problem?

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Thanks for stopping by the HP community. A very good day to you. I reviewed the post regarding issues with the printer not printing in black. I will be delighted to assist you here.

Superb description and stupendous diagnosis of the issue before posting. Kudos to you for that. 🙂

For better clarity and to assist you better I would require information regarding this:

  • Did this happen after a recent power outage or Surge?
  • Does it copy in black directly from the printer?
  • Did you replace the black ink cartridge and check again?


For now, try these steps:

  • Please perform a hard reset on the printer from this link: and follow instructions from the section “Step 1: Reset the printer
  • Then make a copy in black directly from the printer without any communication from the computer and check if it copies correctly.


If it fails to copy in black then perform all the prescribed steps from this link:  (Fixing Print Quality Problems for the HP Officejet 7500A (E910a and E910c)

  • Solution one: Use genuine HP cartridges
  • Solution two: Check the paper
  • Solution three: Check the print settings
  • Solution four: Check ink levels, and then replace low or empty cartridges
  • Solution five: Print and evaluate a print quality report and troubleshoot defects
  • Solution six: Update the printer firmware
  • Solution seven: Replace the printhead

Now check if the issue gets resolved. If it still continues, then contact HP phone support to get the faulty ink cartridge replaced and this should fix the issue as long as the printer’s hardware is not faulty. I am being honest about it by keeping your best interest in mind without beating around the bush.


HP Technical Support can be reached by clicking on the following link:

  • Once the support page opens please select the country in which you're located. Next, enter your HP model number on the right.
  • Next, choose the 'Contact Support' tab at the top and scroll down to the bottom of the 'HP Support- Contact' page to fill out the form provided with your contact information.
  • Once completed click the 'Show Options' icon on the bottom right.
  • Lastly, scroll down to the bottom of the page and select 'Get phone number.' A case number and phone number will now populate for you.
  • Please select paid options if the printer is out of warranty.

They will be happy to assist you immediately.

If the unit is under warranty, the manufacturer’s warranty should take care of it for you.



Perform all these steps patiently as it is critical to resolving the issue. Good luck to you. I will keep a watch for your response.  


Let me know how it goes and you have a great day!

To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as Accepted Solution as it will help several others with the same issue to get it resolved without hassles.

Take care and have a blessed week ahead. 🙂

I am an HP Employee

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