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Printer Jammed - now it's broke!

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HP OfficeJet PRO 7740 Series
Mac OS X 10.11 El Capitan

My printer recently jammed - very badly. While clearing the jam, a very clear, thin strip of plastic that is placed just behind the ink cartridge came unattached from the right side. Now - the printer will  not print when I simply starts to spool the paper to try to print, and then says it is jammed. 


Any idea on what this piece is and how to fix it? 



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Message 2 of 3
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Welcome to HP Forums, this is a great place to get support, find answers and tips.

Thank you for posting your query. I'll be more than glad to help you.

I understand that you are facing paper jam issues with HP OfficeJet Pro 7740 Wide Format All-in-One Printer.


This could be a hardware issue with the unit.


I suggest that you follow the steps from the link: Paper Jam


If the issue still persists, please contact HP phone support from this link:
You may select the country and type the product# of the unit and then follow the on-screen instructions to contact HP phone support.


You have a good day ahead.

I am an HP Employee

If you found this post helpful, you can let others know and also show your appreciation by clicking the Accept as Solution button, Thumbs up" button!

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That is the encoder strip- - - your printers carriage reads the lines on that strip so it knows how far to travel on it's axis during operation.

I suggest you do a google search for your printers service manual and download the pdf. then you can follow the steps in the manual for replacing the encoder strip. if it came off, it's broke because they are usually held on each end with a screw.

Good Luck,

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