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Lexmark CX421

231.x3, 231.x5, 232.x3, 232.x5 Duplex Jams

Affected products

Click Properties in the title section above.

What you will see

The paper repeatedly jams and the printer posts a 231.xx or 232.xx error when it tries to print on both sides of the paper (duplex printing).

Troubleshooting

StepAction
1

Verify the media size used is supported by the printer. Media narrower than A4 (210mm/8.27in.) and shorter than 250mm/9.84in. cannot be duplexed.

2

Verify the media weight is supported. Media over 28 lb. bond (105 gsm) is not supported for duplex printing.

3Ensure the printer is on a flat, level surface. An uneven surface may result in 231.x5 jams, other jams and issues picking paper, or bad image skew.
4

Ensure nothing is interfering with the sheet when it is being pulled back into the printer after the first side is printed.
Note:
Do not touch the sheet while it is reversing.

5

If there are multiple pages in the duplex path, try emptying the output bin to ensure another page is not getting pulled back into the printer when duplexing. This is especially important if there is narrow media in the output bin.

6Check media loading to ensure the side guides are set properly to the media size and are snug against the paper loaded in the tray.
7

Check that the S1 flag on the Tray 1 rotates freely and returns to its original position.

8If the media is longer than Letter/A4 (such as legal, folio, or oficio);
  • Does duplexing Letter/A4 media function properly?
  • Is the longer media being run from an option tray?

Try running Letter/A4 from the same source tray or try running the longer media from Tray 1.

Still need help?

If you need additional assistance, please close this browser tab or go to the Lexmark support site, type your printer model and locate

Get in Touch with Lexmark! for contact information.
NOTE:
When calling for support, you will need the following:

  • Affected printer model/s
  • Printer serial number

Please be near the product/s described in this article to expedite the support process and reduce callbacks.


LEGACY ID: SO8606

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