Question about Brother MFC 420CN All-In-One InkJet Printer

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False Paper Jam Message

No matter what I try I keep getting paper jam message. There is not any paper jammed inside the printer. Please help.

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  • Anonymous Jun 19, 2008

    it says paper jam, but there is no paper any where. when you close the lid back down the printhead goes across then back and makes a scratching like sound

  • Anonymous Mar 14, 2014

    printer keeps showing paper jam message

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I'm not an expert by any means, but here's what worked for me on my brother mfc-240c ink guzzler. First, I cleared the paper jam by lifting up the scanner from the bottom. It wasn't accessible thru the back cover. Then I unplugged the printer twice. Finally it did a cleaning cycle, which seems to be the trick that fixed it. Like I say, No expert, not even sure if you can initiate a cleaning cycle manually! couldn't find it in html owner's manual.

Posted on Dec 03, 2009

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Probably a jam sensor is dirty or stuck. Look through the paper path for a stuck plastic sensor arm, or dirt or paper dust on photocell typr sensors.Paper sensors are normally located near where paper feeds, and where it exits the machine. The paper must pass over these sensors as it travels through the machine.If a scrap of paper is left on the sensors, they will report it as a jam. If you can, try manually pushing a sheet of paper through the printer, ONLY in the direction it normally feeds. This may free up a stuck sensor arm, or force out the jammed scrap.

Posted on Jun 09, 2008

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Posted on Jan 02, 2017

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1. Turn off your printer
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Paper jams can be tricky to solve. The paper is usually stuck inside the printer mechanism so even if there is no visible paper jam, you will still get the paper jam error. Try this:

1. Turn off your printer
2. Open all trays and remove any paper stuck there
3. Locate the button to open the printer, open it and remove any paper stuck there also.
4. Repeate the above step for all buttons that you can find to access the inside of the printer
5. Close all doors and put back all trays
6. Turn on your printer

NOTE: Please rate our help to keep this free service online.

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It appear from here that the exit sensor may be dirty and you can use canned air and blow it out.

You may also be missing the paper out sensor that is located at the bottom of the printer oposite of the paper tray when you pull it out. When the flag arm has fallin out, it will give a false paper jam error when the last sheet has printed from the tray, not knowing or detecting that the tray is now empty.

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Hi,

Paper jams can be real or false. The all-in-one may report a paper jam when there is not any jammed paper, however, the solution to a real paper jam or a false paper jam is the same. Up-grading the printer firmware could also fix this kind of issue, however I would appreciate if you try the steps below before you up-grade the printer firmware.
To fix the paper Jam errors please try the following steps:
1. Confirm that no foreign materials are inside the machine.
2. Confirm that usable paper is set.
3. Confirm that the paper is set properly.
4. Confirm that recommended paper is used, and the number of sheets set does not exceed the required limit.
5. Disconnect the printer power cord as well as the printer cable form the printer.
6. Turn the printer upside down and shake the printer in order to remove any obstacle which is stuck inside the printer causing the paper jam error.
Open the printer cover and remove the cartridges and check carefully if there is any small piece of paper which is stuck inside, if so carefully remove it.
7. Disconnect the printer power cord and press and hold the power button on the printer for about 15 to 20 seconds( this will release the flee power) and reconnect the printer and check.

If the above mentioned steps do not fix the issue please up-grade the printer firmware form the Support.dell.com web site. However make sure that you do not turn off either your printer or computer when you are downloading and installing the printer firmware.
Alternately you can also try to download the and install the printer drives form the support site if the paper jam message is being displayed on the computer’s screen but not on the printer’s LCD screen.

Should you require any further assistance regarding the printer or even any other computer related issue please feel free to contact me I will be more than glad to assist you.

Regards

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Hi,

Paper jams can be real or false. The all-in-one may report a paper jam when there is not any jammed paper, however, the solution to a real paper jam or a false paper jam is the same. Up-grading the printer firmware could also fix this kind of issue, however I would appreciate if you try the steps below before you up-grade the printer firmware.
To fix the paper Jam errors please try the following steps:
1. Confirm that no foreign materials are inside the machine.
2. Confirm that usable paper is set.
3. Confirm that the paper is set properly.
4. Confirm that recommended paper is used, and the number of sheets set does not exceed the required limit.
5. Disconnect the printer power cord as well as the printer cable form the printer.
6. Turn the printer upside down and shake the printer in order to remove any obstacle which is stuck inside the printer causing the paper jam error.
Open the printer cover and remove the cartridges and check carefully if there is any small piece of paper which is stuck inside, if so carefully remove it.
7. Disconnect the printer power cord and press and hold the power button on the printer for about 15 to 20 seconds( this will release the flee power) and reconnect the printer and check.

If the above mentioned steps do not fix the issue please up-grade the printer firmware form the Support.dell.com web site. However make sure that you do not turn off either your printer or computer when you are downloading and installing the printer firmware.
Alternately you can also try to download the and install the printer drives form the support site if the paper jam message is being displayed on the computer’s screen but not on the printer’s LCD screen.

Should you require any further assistance regarding the printer or even any other computer related issue please feel free to contact me I will be more than glad to assist you.

Regards

Malik Khan

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If this helps you, please rate me. Thanks, Patty

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