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PrintDiag

Lexmark error code 42.xx

Quick answer

"Replace cartridge, printer region mismatch" — the cartridge is genuine and otherwise correct, but it was manufactured for a different geographic region than the printer. Lexmark region-codes printers and cartridges to each other, so a cartridge bought in another region will be refused even when it physically fits. The fix is a cartridge made for your printer's region.

Before you try the solution

  1. 1. Copy the complete message exactly as shown, including any letters, spaces, or punctuation around 42.xx.
  2. 2. Find the printer's exact model number. The same-looking code can mean something different on another model family.
  3. 3. Let the current print, scan, or update operation stop before touching controls, paper paths, or covers.

Manufacturer-documented solution

"Replace cartridge, printer region mismatch" — the cartridge is genuine and otherwise correct, but it was manufactured for a different geographic region than the printer. Lexmark region-codes printers and cartridges to each other, so a cartridge bought in another region will be refused even when it physically fits. The fix is a cartridge made for your printer's region.

Model scope: the printer error codes table in your own model's Lexmark User's Guide

If the error is still there

  1. 1Return to the screen or job that produced the message and check whether the code has cleared.
  2. 2If 42.xx returns, do not repeat a risky procedure. Record when it appears and check the documentation for the exact model.
  3. 3If the documented action does not clear 42.xx, contact Lexmark support or a qualified printer technician with the model number and complete message.

Other Lexmark error codes

All Lexmark error codes

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Manufacturer reference

The meaning and documented action above were taken from the manufacturer source below.

Printer error codes — Lexmark CS73x User's Guide

Verified against manufacturer documentation, last checked 2026-08-15. PrintDiag has no printers and no technician, so nothing here is claimed as tested on hardware.