Question about HP DeskJet 6840 InkJet Printer

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Hp deskjet printer 6840 wont print .keeps on saying top cover is open when it is actually closed.

I could not print as it keeps on saying the top cover is open when it is already closed. I changed the ink cartridge and it started doing this.

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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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Posted on Feb 05, 2013

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Did you puch down on the cover some models requires you to puch down so that sencer knows it is completly in place.

Posted on May 20, 2009

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1 Answer

Disassemble


If you get this error:

Top Cover Open. The device cannot print because the top cover is open. Close the top cover and press continue, or cancel the printing.


then follow this guide:
HP Support document HP Support Center

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Sep 24, 2011 | HP DeskJet 6840 InkJet Printer

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HP920c cartridge light wont stop blinking, printer wont print


Please refer below for detailed troubleshooting of the specific condition:

PRINT CARTRIDGE light RESUME light POWER light Blinking Off On c00106873.jpg c00106862.jpg c00106865.jpg Problem

The printer top cover is open, or there may be something wrong with the print cartridge.

Solution

  1. Close the printer top cover.
  2. If the PRINT CARTRIDGE light continues to blink, continue with the following steps:
    1. Open the top cover. The print cartridge cradle will move and then stop.
    2. Locate the yellow arrow on the top of the print cartridge cradle. The yellow arrow points to a drawing of a cartridge that represents a symptom. Perform the task associated with that symptom.
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May 12, 2010 | HP DeskJet 920c InkJet Printer

2 Answers

Says can't print because top cover open when it's not. Tried resetting by pulling plug, re-opening and closing top cover.


this is the common problem of 5150 printer .you just open the top cover ,in your right hand you can see a black moving part it may not working properly. try to move back and forth many time ,then close and check your printer.

Feb 12, 2010 | HP DeskJet 5150 InkJet Printer

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HP Deskjet 6988 Printer Installed properly. Can be detected by the network (both wired and wireless) BUT WON'T PRINT BECAUSE QUIET MODE IS ALWAYS ON. Puts documents to queue but will not print. Tried all...


Hp printer properties best to do this with the usb attached. in the properties you will find printer name make model and setting go to settings and a list with links on depending on what windows you are using, there is auto shut down (2hr) etc on one of the drop lincs is standard and quiet mode. click to standers and save it should be out of that setting now. if still stuck use this link to fix problem with the printer. HP DeskJet 6520 6620 6840 6940 and 6980 Printers Top Cover Open Message...

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1 Answer

Orange ink light keeps flashing and printer won't print


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.
  7. Open the top cover, reinstall the cartridges, and close the top cover.
  8. The printer should print the alignment page.
  9. Print from another application.
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1 Answer

Line in photo when it prints


try to clean the copper contacts on the cartridge and printer with the help cotton moistened with water

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2 Answers

HP Deskjet 5150 - top cover open


I had the same problem, and the cause turned out to be the cover switch not being fully pushed in. On the underside right edge of the top cover, there's a little triangular protrusion that pushes down a black rectangular button (the cover switch) when the cover is closed. The problem occurs because the flimsy top cover is made of plastic and flexes slightly when you close it. This means that sometimes, the right edge of the cover won't seat properly even though it appears as if the cover is closed all the way. When this happens, the triangular protrusion isn't fully pressing the switch down.

To test if this is this is happening, send a print job to the printer and wait for the "top cover is open" error message to appear. Next, open the top cover door and locate the cover switch. It's a little black button in a rectangular hole at the right edge of the doorway near the ink cartridges. Take a pen or a car key and use it to push the cover switch down. You can also use your fingertip to do this if it's skinny enough. If you keep the cover switch pressed down, the power button should start blinking to indicate a print job is coming through. If the print job actually starts printing, then you know the problem was the cover switch.

In my case, all I had to do the fix the problem was close the cover and make sure it was fully seated by firmly pressing down the right edge of the cover until I heard a plasticky "click" noise. After that, the problem went away.

Hope this helps.

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2 Answers

Printer Door


Hi,

I have that exact problem at work. There is a bump on the right side of the lid...and when you close the lid it presses on a lever. Check and see that the bump actually pushes that lever downwards. That's how the printer determines that it's closed.

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