If the issue persists I would personally suggest you contact our HP Phone Support for further assistance.
If your product is Out of warranty then remember to choose the paid options to get the tech support number.
They might have multiple options to help you with this.
Please use the following link to create yourself a case number, then call and it may help speed up the call process:
Step 1. Open link: https://printercontactsupport.co.uk/hp-printer-support/
Step 2. Enter a Product number or select to auto detect
Step 3. Scroll down to "Still need help? Complete the form to select your contact options"
Step 4. Scroll down and click: HP contact options - click on Get phone number and phone number appear.
They will be happy to assist you immediately. 
Let me know how it goes.
You need of any our Technical Support agent. Please call Technical Support team at +44 203 880 7918 our experts are available 24/7 by phone.