Question about HP Officejet Pro K850 InkJet Printer

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Printer lid open light is coming on when printer lid is closed

Printer cover open light keeps coming on when the printer cover is closed

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The printer lid error can appear if any of the following are true:
- top lid is open
- rear duplexer or flat panel is not installed correctly
- cartridge bay area door is open

All of these conditions are detected by a series of sensors or circuits in the printer design so with regard to the lid and cartridge bad door you need to make sure that nothing has broken off that closes the switch.

I'd lay odds that it's most likey the rear panel/duplex unit. I'd recommend taking this out as per the manuals instructions and then reinserting it, carefully so that it fits in place properly.

Hope that solves your problem.

Martin

Posted on May 19, 2009

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I changed my ink cartridge, and now it has cover open displayed but the cover is closed


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hello,
To correct this problem, unlock the carriage from the printer‘s capping station.
  1. Lift the lid to the printer (cartridges are on the right side.)
  2. Turn the printer off, then power it on again.
  3. Unplug the power cable from the back of the printer when the grinding noise starts.
  4. Move the carriage towards the middle of the printer (this procedure may take a couple of tries to get the timing correct.)
  5. Take out the cartridges and close the top cover.
  6. Reconnect the power cord. The power and the resume lights (green and red) should be on.
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Pop off the right side cover - it is just held with clips. At the hinge, you will see that the cover switch arm that is supposed to move up and down as the cover opens & closes (in the slot in the geared hinge) is probably broken off. It is in the up position when the lid is closed, and down when the lid is open. I cut the shaft of a Q-tip to length and wedged it into the space to keep the cover switch up all of the time and still allow free movement of the lid.

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1 Answer

My printer keeps saying Cover Open and won't let me do anything else


Hi All printers have a protruding piece of plastic on the cover / lid, when out of place it tells the printer the cover is open

When you close lid it is inserted into main frame which tells the printer that the lid is closed.

Look for this it may be damaged. If so roll a small piece of paper and insert ito the recepticle hole.

It will trick printer that the lid is now closed.

You will need to remove it each time you need to change inks etc...

Good Luck!

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if your power light is off and the paper and ink lights are flashing try this.
1. remove all the paper,
2. open the cover and check for paper jam
3. make sure the ink cartridge lid is securley in place by opening and re closing the ink cartridge lid
reclose the lid, disconnect the power supply and hold the power button for 30 seconds. reinstall the power plug and turn the printer back on.

hope this helps

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I had that problem too.

Unplug the printer.
Hold the printer cover open while you plug in the printer.
Then wait for the printer to power on while still holding the cover open.
Then close the cover.
The buttons should work and th error message should be gone.

It worked for me.

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