Officejet Pro 6835 won't accept new 935XL cartridge and won't print!

[Melelanihula]

Recently changed Magenta ink cartridge - new 935 XL - but getting "Cartridge Problem -  One or more cartridges appear to be missing or damaged" message, and it won't print!  Ink cartridge is genuine and correct for my printer.  Have tried to follow all self-help, including cleaning the cartridge 'contact' as well as the contacts inside the printer, to no avail.  Help!  I really don't want to have to go buy a new printer because of this issue, and these cartridges aren't cheap.  Thank you.

[Kumar0307]

@Melelanihula, Welcome to the HP Support Community! I’m here to help.

I see that the printer is not accepting the Magenta ink cartridge. 

Make sure you are using HP ink cartridges.

Check if the ink cartridges are properly inserted in the printer, you may refer to - Replace HP inkjet printer cartridges

Kindly perform the steps mentioned in this document - Ink cartridge error

Insert the old ink cartridge(if available) and check if the error persists. If not, then the new one is defective.

If the error persists with 2 different ink cartridges, it could be an issue with the printer.

Please reach out to the HP Technical Support team in your region regarding the replacement options (under warranty). 

Follow the instructions below to reach them:

1) Click on this link - https://support.hp.com/us-en/contact-hp

2) Select your product type below.

3) Enter the serial of your device. 

4) Select the country from the drop-down. 

5) Select the chat or get phone number options based on your preferences. 

6)Fill out the web-form and proceed further.

If you are having trouble navigating through the above options, it's most likely because the device is out of warranty. If yes, you may use this link to find the phone number of the regional HP Support team: HP Phone Assist Worldwide

Keep me posted for any other assistance.

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click on the YES button to reply that the response was helpful and/or to say “Thank You”.

Have a great day! 

[Melelanihula · Accepted solution]

Thank you for the response.  I used a Q-Tip dampened with an alcohol-based antiseptic and cleaned the contact on both the ink cartridge and inside the printhead, but it still wouldn't work.  Finally, I swabbed around the round ink receptacle itself (INSIDE the printer), and it worked!   Whew.