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How to Locate the Serial Number, Machine Type, and Config ID on a Lexmark X642, X644, or X646 Printer

Document ID:HO3129

Usergroup :External


Serial number location; Where do I find the printer serial number?; Machine type; Printer model type; TLI number; Config ID number; Service call; How to contact Technical Support



When calling for warranty service, you will need to know your printer's machine (model) type and serial number.  This information can be found on a label on the inside of the printer (see the instructions below). The label also shows the printer's part number (TLI) and config ID number (CID).

The printer serial number is also listed on the menu settings page(s) you can print from the printer operator panel.

Locating the Printer's Serial Number


  1. Push the release latch on the left and open the lower front cover (multipurpose feeder).

  2. Push in the side release latches and open the top front cover.
  2Look for the serial number sticker on the left-hand side of the printer.

Still Need Help?

If you need additional assistance, please contact Lexmark Technical Support

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