31.60C is a support code documented for Lexmark MB2236adw. Imaging unit missing or unresponsive.
What this support code means
Imaging unit missing or unresponsive.
Applies to: Lexmark MB2236adw. Do not reuse the same code on an unrelated model.
What to try, in order
- Restart once. Open the front door and remove the toner/imaging assembly.
- Separate and reseat the toner in the imaging unit, then reinstall the complete assembly.
- If the documented checks fail, this article directs replacement of the imaging unit, not an assumption that toner is empty.
After each step, repeat the action that produced the message. If it clears, you can stop.
Does this call for a replacement?
The message alone does not justify buying a part. Complete the documented installation or cleaning checks first; consider the exact OEM number only if the manufacturer procedure then calls for it.
Part pages contain paid Amazon search links only after the diagnostic context; no seller or retail item is verified by this error code.
When to stop
Stop if the instructed check does not apply, access requires disassembly, or the error persists after the documented steps.
- Avoid touching the imaging surface. Keep a replacement purchase conditional on completing the official diagnosis.
Do not buy a part from the code alone. Check the exact model and manufacturer's part list if a replacement is actually required.
Models covered by this source
Official sources
These links identify the source and its scope. Check the manufacturer page again before changing a printer setting or buying a part.
- Lexmark — MB2236: 31.40C,31.60C,31.40E supply detection errors Checked 2026-11-01; official full page
Useful next steps
Found a mismatch? Request a correction with the public source URL and exact model, without passwords or full serial numbers.