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- HP Community
- Printers
- Printing Errors or Lights & Stuck Print Jobs
- Hp Officejet Pro 8500A Plus Sensor Cleaning

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04-05-2022 08:04 PM
I have two questions:
Question 1 - I read that user cfxcorp tried cleaning the "printhead carriage alignment sensor" that yielded a better result. Could cfxcorp or anyone else please explain the proper process to access the alignment sensor?
Question 2 - I would also like to ask for a video or written instruction on how to properly disassemble my Officejet Pro 8500A Plus, so I can clean all my ink lines and connectors. The scanner lid gets in the way.
Thanks in advance and for even reading!
04-09-2022 04:37 AM
@Rotti-Ron, Welcome to the HP Support Community! I’m here to help.
The internal parts of this model printer are non-removable. Hence, there is no service guide available.
You may do it at your own discretion.
You may refer to - Alignment errors or click here to access all other available troubleshooting documents related to this model printer.
Hope this helps! Let me know how it goes.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
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Have a great day!
KUMAR0307
I am an HP Employee