- Printers
- Laser printer
31.XY
Lexmark 31.xy on a laser printer: missing or unresponsive supply
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
The printer cannot find the toner cartridge or imaging unit, or gets no response from it. Check whether it is missing, then remove and reinstall it. If the message returns after reinstalling, Lexmark says to replace that supply.
Safety first
Stop and check this first
- After printing, the inside of a laser printer can be hot. Only remove the supply through the front door and touch nothing else.
Safe checks you can perform
- Which supply the code points to
- Presence and reinstall
- Test with a new genuine supply
Leave these tasks to a qualified professional
- Do not attempt this professional task: Detection test with another supply
- Do not attempt this professional task: Internal check by service
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Detection test with another supply
What they doIf 31.xy stays with a new genuine supply, the Lexmark technician tests detection with another supply and the printer's configuration page.
They must show youthe code in the Embedded Web Server before and after the test.
In writingthe cause and the part replaced with its reference.
Internal check by service
What they doIf detection fails with correct supplies, Lexmark service checks the inside that owners should not open.
They must show youwhat they checked and a page printed after the repair.
In writingthe diagnosis and whether it is covered.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Which supply the code points to
- Who:
- you.
- How:
- press the panel button twice to see the supplemental light sequence, or open the Embedded Web Server at the printer's IP address, where the code appears with its x and y values.
- Result that matters:
- you know whether it is the toner cartridge or the imaging unit.
- If it is the cartridge:
- check the toner cartridge.
- If it is the imaging unit:
- check the imaging unit.
- Evidence to keep:
- photo of the lights or a screenshot of the Embedded Web Server.
Evidence: Lexmark MS310 User's Guide - Understanding the printer messages
Presence and reinstall
- Who:
- you, no tools.
- How:
- open the front door and check the indicated supply is installed. If it is missing, install it following the supply's instruction sheet; if it is there, remove and reinstall it.
- Result that matters:
- the message clears on closing.
- If it clears:
- seating or a missing supply was the cause.
- If it returns:
- try a new genuine supply.
- Evidence to keep:
- note of the supply reference.
Only remove the cartridge or imaging unit through the front door; do not touch the inside.
Evidence: Lexmark MS310 User's Guide - Understanding the printer messages
Test with a new genuine supply
- Who:
- you.
- How:
- replace the indicated supply with a genuine Lexmark one of your printer's reference.
- Result that matters:
- the printer recognises it.
- If it does:
- the old supply was defective or not genuine.
- If 31.xy stays with a new genuine supply:
- contact Lexmark support.
- Evidence to keep:
- photo of the new supply label and the lights.
Evidence: Lexmark MS310 User's Guide - Understanding the printer messages
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Printers
- Brand
- Lexmark
- Product type
- Laser printer
Known code variants
- Lexmark 31.40
- Lexmark 31.xy
- Lexmark MS310 31
- Lexmark reinstalar cartucho que falta o no responde
- Lexmark reinstall missing or unresponsive cartridge
What it means
In the Lexmark MS310 guide, code 31.xy goes with Reinstall missing or unresponsive cartridge and also with Reinstall missing or unresponsive imaging unit; the light sequence tells you which. The printer checks that the supply is present and responding. Lexmark says to install it if missing or reinstall it if present and, if the message stays, replace it, because it may be defective or a non-genuine Lexmark supply. The code does not prove the printer is faulty.
Warnings and stop conditions
- Mediumeditorial warning
After printing, the inside of a laser printer can be hot. Only remove the supply through the front door and touch nothing else.
Evidence: Lexmark MS310 User's Guide - Understanding the printer messages
Symptoms and causes
Probable causes · in order
- Supply not seatedCommon
Lexmark says to remove and reinstall the unresponsive supply. This fits if the message clears after reinstalling it.
Evidence: Lexmark MS310 User's Guide - Understanding the printer messages
- Supply missingPossible
After a replacement the cartridge or imaging unit may be missing. Opening the front door shows it.
Evidence: Lexmark MS310 User's Guide - Understanding the printer messages
- Defective or non-genuine supplyPossible
If the message returns after reinstalling, Lexmark says the supply may be defective or not genuine Lexmark. A new genuine supply confirms it.
Evidence: Lexmark MS310 User's Guide - Understanding the printer messages
Virtual technician
Does 31.XY still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Lexmark MS310 User's Guide - Understanding the printer messages
Lexmark International · official_doc
Was this entry useful?