When you close the lid where the rollers are at, it will not stay closed. Now if you put something heavy on it and it will work fine. I forgot to mention that 2 plastic pieces came out of it as well. I dont know exactly where they go. One is Green and the other one is Black.
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Re: HP Officejet Pro l7780
Most likely the cover latches. Try calling HP support to see if they will sell you new latches. They are pretty bad at selling parts. In the past, I have used velcro strips, that you can buy ay Home Depot or Walmart.
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There should be a textured seperator pad, if that's worn out, replace it. Also check the ADF rollers should not be smooth. You may need to just replaced the ADF maintenance kit. It should include the roller assembly and seperator pad.
Hi this appears to be part of a generic problem possibly caused due to power surges… As recommended by HP on these types of errors: 1: Disconnect the USB cable from the back of the product, but leave the product turned on. 2. Open the cover of the product and remove the print cartridges. 3. Close the cover and wait for the Insert Ink Cartridges message to display. 4. Disconnect the power cord from the back of the product and wait for one minute. 5. Reconnect the power cord. If the product does not automatically turn on, press the Power button. 6. Open the cover and reinsert the print cartridges. 7. Close the cover. If prompted, print a calibration page. 8. Reconnect the USB cable, and try to print a print job from the computer.
If this works, please grade the answer... If the steps don’t work I would recommend you check with HP.