Question about Brother MFC-9840CDW Laser Printer

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Wrinkled envelopes Brother mfc 9840cdw

TOOK YOUR SUGGESTION, OPENED LARGE BACK DOOR. ADJUSTED GREEN LEVERS TO ENVELOPES. TRIED TO PRINT MY THREE ENVELOPES. WITH MY MFC 9840 IT WILL NOT LET ME PRINT WITH THE BACK DOOR OPEN. THE MESSAGE SAYS, "COVER IS OPEN". CANNOT PRINT WITH DOOR OPEN AT ALL. CAN YOU HELP? ANYONE?

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Instead of moving the whole green lever to adjust that grey arrow to the envelope symbol, simply push the gray part that has the arrow on it. This will move the gray piece down to the env. symbol and will not move the green lever so you can close the back door. I used to have severly wrinkled envelopes. Now they print out perfect.

Posted on Oct 05, 2009

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Posted on Jan 02, 2017

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http://www.iusermanual.com/printer/brother-mfc-9840cdw-multi-function-printer-manual.htm

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http://welcome.solutions.brother.com/BSC/public/as/nz/en/faq/faq/000000/000000/000063/faq000063_033.html?reg=as&c=nz&lang=en&prod=mfc9840cdw_all&Cat=103

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Problem Solved!

I have a Brother MFC-8480 DN all in one printer, copier, fax and scanner.

I discovered that envelopes wrinkle because users, like me, didn't know that Brothers built in a no-wrinkle, pass through exit for envelopes, labels and thick paper.

Envelopes were never to be printed by inserting them in the front and letting them wrap around a HOT roller and get cooked and wrinkled. The way it works:

An envelope is inserted in the front and goes straight out the back of the printer through an exit door, completely avoiding the hot roll-through mechanism.

Take a look. On the back of the machine is a large pass through exit door. Just snap it open. You will see one blue lever on each side of the opening. Snap them both straight down to the . . .ta da. . ."envelope icons".

Put three envelopes in the front and they will print straight out the back, perfect and wrinkle free. After printing your envelopes, snap the blue levers back up and shut the door. Takes about five seconds to open the door and snap down the blue levers down/up.

Happy envelope printing.

-Eric


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