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How do i remove the duplex? - Lexmark T640 Laser Printer

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Here's an article on How to Install a Duplex Option on a Lexmark T64x Series Printer. Just click on this link: http://bit.ly/94TYQc. This is just to give you an idea on how the duplex option is installed. The duplex unit attaches under the printer, below the standard tray (tray 1) and above any option drawers (trays 2, 3, etc). Removing it is just a matter of lifting up the printer from the duplex option and then lifting up duplex unit removing it from the option drawers, if you have any.
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Posted on Aug 05, 2010

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Hp4200 duplexer paper jam


If it jams every time, remove the duplexer and look for a piece of paper on the metal plate as the paper feeds out of the duplexer and back into the machine. Also use a file folder to push any jammed paper out from inside the duplex module.

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How do i remove the paper from the duplex unit when there is no paper there


You could have a broken actuator or the spring came of. I would check all areas for paper not only the duplex area. I've seen paper jams in other areas show a different indication on the display.

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Iam getting the duplex paper jam error 371 each time i try to print . how do imake the error go. i dont use the duplex at all.


See page 75 of the attached user manual on how to remove a duplex paper jam. If you can't find a paper jam in the duplexer, simply remove the duplex assembly (power off the printer, then power on) and see if that resolves your issue.

(The printer will operate just fine without the duplex assy. installed)
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It gives me a bad duplexer connection error, im not sure where a duplexer is located


The duplexer on this machine is mounted right on the top where the paper exits. It should have a clear paper guide on it. When duplexing,the paper comes out here, and then reenters the machine.I would try reseating the duplexer as I have had them dislodged by users sometimes when they are removing jams.

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1 Answer

I put in new cartridges and the orange light keeps blinking


If that's the access foor at the back of the printer might just be loose or unlocked. Try locking the door into place and see what happens. Or if you have a duplexer. Try these:
  1. Press the buttons on each side of the duplexer to release it. Figure 7: Press the buttons to release the duplexerc02622982.gif
  2. Remove the duplexer from the product.
  3. Reattach the duplexer. Press the buttons on each side of the duplexer, and then gently push the duplexer back into the rear of the product until it snaps firmly into place. Figure 8: Reattach the duplexerc02622983.gif
  4. Repeat the steps to reattach the duplexer if the lights remain on.
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1 Answer

I have a 18 mo old 8500 OJPro wireless that won't advance the paper, makes a clicking sound and gives a false paper jam error. I have seen a split white gear within a black clutch assembly on the left end...


Follow these steps in the order presented to resolve the paper jam. Step one: Remove any loose paper Remove any loose sheets of paper from the input tray and the output tray. CAUTION: Do not remove jammed paper at this stage. Trying to clear jammed paper from the front of the product can damage the print mechanism. Remove any loose paper Do not pull jammed paper c02073375.gif c01994705.gif Step two: Clear the jam from the rear of the product CAUTION: Never pull jammed paper from the front of the product. If you can pull it from the rear of the product or the tray, always try the rear first. Pulling paper from inside the front cover can cause mechanical damage to the product.
  1. Press the Power button (c01602202.gif ) to turn off the product.
  2. Disconnect the power cord from the rear of the product.
  3. Unplug the power cord from the wall outlet.
  4. Turn the product around so that you can access the rear side. Figure 1: The rear side of the productc01617574.gif
  5. Push in the button on either side of the two-sided printing accessory (duplexer), and then remove the duplexer. Figure 2: Remove the duplexerc02051407.gif 1 - Press the buttons on the sides of the duplexer 2 - Pull the duplexer out of product
  6. Gently remove any jammed paper or bits of torn paper from the rollers inside the product. Use both hands to pull any whole sheets of paper to avoid tearing them. Figure 3: Gently remove the jammed paperc02073376.gif CAUTION: Use a flashlight to thoroughly check the rollers and wheels for torn pieces of paper that might remain inside the product. If any torn pieces of paper remain inside the product, more jams are likely to occur. Figure 4: Remove scraps of paperc02073377.gif
  7. If you do not see jammed paper in the rear access area, push the buttons on the latch on the rear of the duplexer, and then lower the cover. Figure 5: Open the duplexerc01617577.gif 1 - Latch on rear of the duplexer 2 - Duplexer cover
  8. Remove any jammed paper from inside the duplexer.
  9. Close the duplexer cover.
  10. Gently push the duplexer into the product until it snaps firmly into place. Do not press the buttons on the end of the accessory while you reattach it. Figure 6: Reattach the duplexerc01617578.gif
  11. Reconnect the power cord to the rear of the product.
  12. Plug the power cord back into the wall outlet.
  13. Press the Power button (c01602202.gif ) to turn on the product.
Step three: Print a self-test report Follow these steps to print a self-test report. Printing a self-test report verifies if the hardware functions correctly.
  1. Load unused, plain white paper in the input tray.
  2. Press the Power button (c01602202.gif ) to turn on the product.
  3. Press the Setup button (c01726396.gif ).
  4. Press the Right Arrow (c01185072.jpg ) to select Print Report , and then press OK .
  5. Press the Right Arrow (c01185072.jpg ) to select Self-Test Report , and then press OK . The self-test report prints.

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1 Answer

Cannot attach the duplexer to back of printer


If it's the right duplexer you just remove the back door and replace it with the duplexer. There are buttons on each side to push to remove or install. If the size is not correct you don't have the right unit for your machine.

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