Ok, we had a paper jam. But after clearing all the pages out without tearing any of them, the Rear Cover Open error message continues to show. I've followed the procedure for clearing a jam from the Brother website, but the error message still shows.
Does anyone know how to clear this, override it, or fix the broken microswitch that is reporting an open cover?
Much thanks in advance.
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Re: Rear Cover message stuck on
First, try shutting off, and unplugging the printer to do a reset on the micro & logic circuitry.
If you actually have broken switch or lever which actuates the switch, then an obvious solution is to replace said broken part. Or, if indeed a switch, you could possible bypass & defeat the switch so it doesn't sense the door open.
If this is an actual mechanical switch bypass is fairly simple. You will need to find out if the non-fault (normal operation) condition is either an Open or closed switch and either short across the switch contacts (closed) or pull a wire off (open).
If desperate to get the printer running, bypass the switch, use the printer, and get a replacement part ordered in the meantime, then install the new part to restore proper operation.
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Clearing Paper Jams If the printer's control panel displays a paper jam message, look for paper in the locations indicated in Figure 22, then see the procedure for clearing the paper jam. You might need to look for paper in other locations than indicated in the paper jam message. If the location of the paper jam is not obvious, look first in the top cover area.When clearing paper jams, be very careful not to tear the paper. If a small piece of paper is left in the printer, it could cause additional jams. If paper jams are a recurring problem, see page 78.(A paper jam message might also display if the rear door is open.)
The top cover of the printer must be opened and then closed to clear a paper jam message.Paper jams can occur at the following locations:Output areas(top and rear)Go to page 75.
Loose toner might remain in the printer after a paper jam, but thetoner should clear after a few sheets are printed.
The sensor may be dirty even if it looks like there is no paper jam. Take a bottle of compressed air and give it a once over. Make sure you don't shake or tip the compressed air as you don't want to fast freeze anything.
If this does nothing, you probably have a failed sensor which will need replacing.
Check if there is a reset, or clear message function. or you may try this one:
1. With the printer turned on, if there is a door for the cartridge, open it. 2. Then, if there is a "Go" button, "Print", "Copy" button, press and hold it for 10 sec. 3. Close the cartridge door or cover. Turn it off then turn it on again.
HP LaserJet 3050z, 3050 All-in-one, 3052, 3055, 3390 and 3392 versatile printer - Error reported: Document Feeder Jam
How to correct the HP LaserJet 3050z, 3050 All-In-One, 3052, 3055, 3390 and 3392 versatile printer if this error is reported: Document Feeder Jam
Clear the jammed media from ADF (HP LaserJet 3050, 3050z).
Open the ADF cover plate.
Remove any jammed media with care.Take out the page gently.
Take care not to tear the paper.
Close the ADF cover plate.
Clear the jammed media from ADF (HP LaserJet 3390, 3392, 3052 and 3055).
Open the ADF cover plate.
Check whether all packaging straps inside the ADF are removed.
Unload the jam clearance component.Lift the two handles with both hands until the component clutch is released.Rotate and lift the jam clearance component, and then put it aside.
Lift the green handle, and rotate the paper picker until it is opened.
Gently remove the page without tearing it.If you feel resistance, go to the next step.
Open the ADF cover plate, and loosen the media gently with both hands.
When the media are stopped, pull the media out gently along the shown direction.
Close the cover plate of the flat scanner (HP LaserJet 3390, 3392, 3052, 3055).
Pull down the green handle.
Insert the jam clearance component to reinstall it.Press the two reeds until the component is properly engaged.Install the clearance component correctly. Otherwise, paper jams will continue to occur.