HP Officejet Pro - Printer Door Open Light Stuck On
Have a 1 year old HP Officejet Pro K850 with a "door open" light that seems to be stuck on. Have checked and rechecked all doors and access panels, even uninstalled and reinstalled the duplex unit. Have no idea why the door light is still on.
Re: HP Officejet Pro - Printer Door Open Light Stuck On
There is a problem with the proximity sensor for the top door. I have took mine off and soldered the connections over to trick it into thinking the door is closed all the time. I am trying to source a new part
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The Power light is on and the Resume light blinks. The printer is out of paper. &#... the printer, and press (Resume button). The Power light and the Resume light are on. A cover is not closed completely. ?... completely. ?
Remove all the paper out of the machine
At the back of the printer there is an access door.
Open up the door.
Look for any paper that may be stuck inside.
If there is paper, slowly pull it out of the machine.
Close the access door
Why are you taking out the ink cartridges?? The message says to open the carriage access door and clear the jam. The printer thinks that paper is stuck in the paper path, see if you can find it. I believe that there is also a rear door on that printer, remove it and look inside.
I had the same problem. Chatted with HP technician who indicated the repair would cost more than a new printer. I asked for access to service manual but was told there is none. I was able to fix it myself by using a hacksaw blade to cut across the dark plastic bridge area that hides the open cover sensor. After removing this section of plastic I was able to see the wiring plug attached to the faulty sensor. All you have to do is jumper the two colored wires together (ignore the black wire) and the cover open error will go away. Make sure you clean out all the debris you created from cutting out the plastic section before powering it up. I placed a clean rag inside the printer under this area before cutting to catch most of the plastic "sawdust." It wasn't pretty, but it was better than throwing the printer away and buying a new one. It didn't take more than a few minutes to fix, and with the cover down, you don't even know it's been "hacked."
I think the message is instructions, as in (1) open door
(2) clear carriage jam
(3) press enter
So there is something internal to the printer that makes it think it has a carriage jam, piece of paper under a sensor, dirty or stuck sensor.
If you can't find it using a bright light, try canned air.
Inspect the location or tray the printed paper ejects to. If the stuck paper is visible manually remove it.*
Remove all paper trays and any paper that may be stuck between the tray and the printer. If the stuck paper is visible manually remove it.*
Open the printer door that allows you access to the printer ink cartridges or toner and look for any stuck paper. If the stuck paper is visible manually remove it.*
Turn the printer back on. If you continue to receive a printer jam error try repeating the above steps again. If issue still persist and you see no paper that is stuck in the printer it's likely your printer is experiencing another hardware issue and i suggest contacting theprinter manufacturerfor additional assistance and/or repair.
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.