Can you keep using it?
Can you keep using it?
Contact customer support if any of these apply
- !ADF jams return repeatedly with clean originals.
- !The feeder pulls documents crookedly or stops in the same position every time.
What to check first
Step-by-step checks
- 1
Safe first step
Clear the ADF path fully and remove any scraps.
Start with the official recovery step before moving on to parts or deeper servicing.
- 2
Safe first step
Reload a smaller stack of clean, flat originals.
- 3
Safe first step
Use the scanner glass for delicate or damaged originals.
Background
What this message usually means
Lexmark's MX431 MFP guidance treats ADF jams as a separate scanner-path issue rather than a print-engine jam. In practice it means the original document stalled during copy or scan handling and the ADF path needs to be cleared before scanning can continue normally.
Diagnosis
Likely causes
The original stack was skewed or too thick for a clean ADF feed.
A small scrap remains in the ADF path.
Damaged, stapled, or curled originals caused the feeder to stop.
Service
When service or replacement is more likely
- -This affects copy and scan workflows, not regular print output.
See also
Related codes in this family
Explore more
More Lexmark printer families
Source notes
Lexmark's official MX431 support videos include a dedicated ADF jam-clear procedure for removing original documents stuck in the feeder path.
Built around official Lexmark user-guide and service-manual material for the MX431 and closely related mono office models. Exact code behavior can vary a little by print-only versus MFP model and installed options, but the main paper-jam and supply messages stay close across the family.
Printer error codes can vary a little by firmware, region, and exact model variant. Use this guide as a family-level starting point and stop if the next step would require disassembly or service-mode changes.
Known family variants: MX431adn, MX431adw, MS431dn, MS431dw, XM1342
Last reviewed: 2026-04-12
Reference: Open reference