my hp officejet pro 7740 cannot detect paper in the ADF. What can I do then

[ClaudeBu]

my hp officejet pro 7740 cannot detect paper in the ADF. What can I do then

[A_Gayathri]

Hi @ClaudeBu ,

Welcome to The HP Support Community.  

Thank you for posting your query, I will be glad to help you.

I understand the HP OfficeJet Pro 7740 printer is not detecting paper in the Automatic Document Feeder (ADF), here are steps you can try to troubleshoot and resolve the issue:
 

1. Check for Paper Jams in the ADF

• Open the ADF cover and inspect for any paper pieces, debris, or foreign objects that might be stuck inside the feeder.
• Remove any paper that may have been improperly loaded.
• Clean the rollers to ensure smooth paper feeding.

2. Check the Paper Type and Size

• Ensure that the paper in the ADF is of the correct size and type that is supported by the printer (e.g., standard sizes like A4 or Letter).
• Make sure the paper is loaded properly and not too thick or curled, as this might prevent detection.

3. Reset the Printer

• Turn off the printer and unplug it from the power source.
• Wait for about 60 seconds and then plug the printer back in.
• Turn it on again and try using the ADF.

4. Clean the ADF Sensors

• Dust or dirt on the ADF sensors can prevent the printer from detecting paper.
• Use a lint-free cloth lightly dampened with water to clean the ADF sensor window and rollers.
• Ensure that the sensors are free of any dust or debris that might interfere with paper detection.

5. Update Printer Firmware Update the firmware on an HP printer

• Ensure that your printer's firmware is up to date, as this can fix bugs that may be causing the ADF issue.
• You can update the firmware using the HP Smart app or directly from the printer’s settings.

6. Run a Printer Diagnostic

• Use the HP Print and Scan Doctor tool to troubleshoot and detect any hardware-related issues with the ADF. HP Print and Scan Doctor
• Download it from the HP Support website and follow the instructions to diagnose the problem.

7. Check ADF Settings in Printer Preferences

• On your computer, navigate to Devices and Printers, right-click on your HP OfficeJet Pro 7740, and select Printer Properties.
• Check the Paper Source settings to ensure the ADF is selected when scanning or copying.

8. Test with a Different Document

• Try using different types of paper or another document to see if the issue persists.
• If the problem is with specific paper or documents, it could be an issue with the paper rather than the ADF itself.

Refer to this document: HP OfficeJet Pro 7740 Wide Format All-in-One Printer series User manual 

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. 

[A_Gayathri]

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