Document feeder intermittenly does not detect documents

[Fran4745]

My Officejet 7740 wide format all in one printer intermittently does not detect documents in the document feeder. Rebooting my laptop and printer some times helps. Other times it does not. What is the problem?

[zoey7886]

@Fran4745, Welcome to the HP Support Community!  

Thanks for reaching out about your query regarding your Officejet 7740! 

We're thrilled to have the opportunity to assist you and provide a solution.  

I understand how frustrating it must be when your OfficeJet 7740's document feeder isn’t consistently detecting documents. Let’s try to get this sorted out!

Since rebooting your laptop and printer sometimes helps, it sounds like this could be a software or connection issue. However, there are also a few hardware-related checks we can do:

Clean the Document Feeder Sensors – Dust or debris can sometimes block the sensors, causing intermittent detection issues. Try gently wiping the feeder rollers and sensors with a lint-free cloth and a little distilled water.

Check the Paper Placement – Make sure the documents are properly aligned and inserted all the way into the feeder. A slight misalignment can cause the printer to miss them.

Update Printer Firmware and Drivers – If you haven’t already, check for updates on the HP Support website. A firmware or driver update could resolve underlying bugs.

Reset the Printer – Unplug the printer from power while it’s still on, wait about a minute, then plug it back in. This can help clear temporary glitches.

Test with a Different Set of Documents – If the issue happens with specific types of paper (like crumpled or glossy sheets), try using standard plain paper to see if the issue persists.

If none of these steps work, let me know, and we can dig a little deeper! Hope this helps. 😊  

Take care, and have an amazing day!  

Did we resolve the issue? If yes, Please consider marking this post as "Accepted Solution" and click "Yes" to give us a helpful vote - your feedback keeps us going!  

Regards, 

[Fran4745]

Thanks for your reply. I have performed your suggested tasks several times with the same results. The document feeder does not consistently detect documents are loaded.

I like the printer but am disappointed in having this problem.

Where is the sensor that detects that documents are loaded? How does the feeder detect the documents? Is there a replacement part for this issue?

Please advise.

Regards

[zoey7886]

@Fran4745, thank you for getting back to us!

To troubleshoot your issue, please follow these steps from this link.  

Let me know how it goes!

Take care, and have an amazing day!  

Did we resolve the issue? If yes, Please consider marking this post as "Accepted Solution" and click "Yes" to give us a helpful vote - your feedback keeps us going!  

Regards,