Office Jet Pro 8630 black blocks/ shading

[dave_n_s]

See attached print quality report with black marking in varying amounts around the page, eg, top left corner, increasing along line to a block / line at the end of Test Pattern 1 line.

I volunteer for a local thrift store and we get a lot of non-working printers donated. Real good to see one come in that works, nearly and coming in with ink in in-date cartridges, but I'd like to solve this shading problem.

There is much more shading on the printhead calibration page (the one that ends with two birds).

I've run through the tools, cleaning the print head (stage 1 only), aligning and calibrating print head / line feed.

I've pulled the print head and cleaned a lot of goo off the black plastic surround, however I suspect this is being picked up from the parking position, but I'm not going to venture further without guidance or some service documentation. I'm not a printer expert, just an old engineer who'd like to get this printing nicely if I can.

What do the printer experts recommend please?

Thanks!

[dave_n_s]

Any other information required by the experts round here to help me resolve this issue?

[sandytechy20]

@dave_n_s

Welcome to HP support community.

If you have tried all the steps mentioned in this HP document :- Click here

And if the issue still persists, this could a hardware issue.

I request you to talk to HP support.

They might have multiple options to help you with this.

1. Click on this link - https://support.hp.com/us-en/contact-hp?openCLC=true
2. Select the country.
3. Enter the serial of your device.
4. Select the country from the drop-down.
5. Click on "Show Options".
6. Fill the web-form. A case number and phone number will now populate for you.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.

[dave_n_s]

Sandytechy20,

I have run through all the steps in that document.

I've also been to the contact page you included.

That offers one method of support only, the community, which is why I took the trouble to post here in detail.

Can you please comment on my thinking that it could be an overloaded parking location sponge or something of that nature.

Is that credible with the number of pages this printer has produced?

And full disclosure, I'm trying hard not to consider your reply to be canned "option 1" for "got a printer problem" posts.

[sandytechy20]

@dave_n_s

I have brought your issue to the attention of an appropriate team within HP. They will likely request information from you in order to look up your case details or product serial number. Please look for a private message from an identified HP contact. Additionally, keep in mind not to publicly post personal information (serial numbers and case details).

If you are unfamiliar with how the Community's private message capability works, you can learn about that here.

Thank you for visiting the HP Support Community.