Lexmark CS/X72x and XC41xx: How to Locate the Serial Number, TLI, and Machine Type

Affected Products:

Single-Function: C4150, CS720, CS725, CS727, CS728

Multifunction: CX727, XC4143, XC4150, XC4153

Issue Description:

When contacting Lexmark Technical Support or arranging warranty service, you will need to know your printer's machine (model
) type and serial number. This article explains how to find information such as the serial number
(SN
), top-level indicator
(TLI
), and machine type
on the printer.

Locating the Label:

Open the printer's front cover.

Look for a sticker where the information above is located. See the location pointed by the red arrow
on the right-hand image.

NOTE:
The printer's serial number is also listed on the menu settings page that you can print using the printer.

LEGACY ID: HO4001