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- HP Community
- Printers
- Printer Ink Cartridges & Print Quality
- Printer not printing dark enough

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03-14-2025 05:26 AM
Hi @DrSnipes,
Welcome to HP Support Community.
Thank you for posting your query, I will be glad to help you.
I understand you have trouble printing where the HP OfficeJet Pro 8600 N911a is not printing dark enough. Sorry to hear about the issue, lets try the steps shared below, this will help to resolve the issue, try and keep me posted.
Use an automated tool to clean the printhead
Follow these steps to clean the printhead.
note:If the printhead is badly clogged, you might need to clean the printhead several times to restore normal print quality.
Load plain white paper into the tray.
On the printer control panel, touch the Right Arrow () to display additional options.
Touch Setup (), and then touch Tools.
Touch Clean Printhead. The printer cleans the printhead, and then prints a test page.
Evaluate the test page for print quality.
If you are satisfied with the print quality on the test page, touch No to return to the current print job.
If you are not satisfied with the print quality on the test page, touch Yes to continue to the next printhead cleaning stage.
note:There are three printhead cleaning stages. Complete all three stages if necessary. If the printhead is badly clogged, you might need to start another cleaning cycle. If so, wait 30 minutes after the last (third) cleaning stage to start the first stage of the cleaning process over again.
caution:Never turn off the printer when ink cartridges are not installed. To avoid issues that require cleaning the printhead or that can damage the ink system, always replace ink cartridges as soon as possible, and always turn off the printer using the Power button.
If these steps resolved the issue, you do not need to continue troubleshooting.
If the issue persists, continue to the next solution from the Link: Click Here
I hope this helps.
Take care and have a good day.
Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!
VikramTheGreat
HP Support