- Printers
- Laser printer
23Y.XX
Lexmark 23Y.XX on laser printer: paper jam in the duplex area
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
Lexmark 23y.xx flags a sheet stuck in the two-sided printing path, reached through the tray 1 opening. Pull the tray all the way out, push the blue lever down, draw the paper out with both hands and, if nothing is visible, check the rear door once it has cooled.
Safety first
Stop and check this first
- Do not pull out or refill the tray while the printer is working; Lexmark lists it among the habits that cause jams.
- Lexmark's guide warns the inside may be hot: if you must open the rear door, let it cool before touching anything.
Safe checks you can perform
- Free the duplex section through tray 1
- Look behind the rear door once cool
- Confirm the paper suits two-sided printing
- Reload tray 1 calmly
Leave these tasks to a qualified professional
- Do not attempt this professional task: Duplex diagnosis by a Lexmark technician
- Do not attempt this professional task: Fragments out of your reach
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.
Duplex diagnosis by a Lexmark technician
What they doWhen 23y.xx keeps coming back even though the paper is duplex capable and correctly loaded, a Lexmark authorised service provider checks the duplex unit and the path rollers.
They must show youthe printed configuration page and a two-sided test print after the repair.
In writingthe parts replaced, the reason and whether warranty covers them.
Fragments out of your reach
What they doIf a piece of a sheet stays in the duplex section or near the fuser and your hand cannot reach it without tools, have authorised service remove it.
They must show youthe removed fragment and a two-sided page printed with no message.
In writingwhat was done and the case number.
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.
Free the duplex section through tray 1
- Who:
- you.
- How:
- pull tray 1 out completely, find the blue lever inside the opening and pull it down to open the path; hold the jammed sheet by both sides and draw it out steadily.
- Result that matters:
- leaving the return path clear of paper and loose scraps.
- If the page comes free in one piece:
- slide the tray back in and press the panel button to clear the message.
- If you cannot see paper there:
- go on to the rear door, as Lexmark's note says.
- Evidence to keep:
- photo of the message with the full code digits.
Evidence: Lexmark MS410 Series User's Guide - Clearing jams
Look behind the rear door once cool
- Who:
- you, after the inside has cooled.
- How:
- open the front door with the button on the right side, lower the rear door gently and pull out any sheet you see by both edges; then close both doors.
- Result that matters:
- removing paper the duplex section pushed toward the exit without touching hot components.
- If the sheet appears and the message clears:
- check whether the printer reprints the lost pages.
- If the paper tears:
- do not close anything until every fragment is found.
- Evidence to keep:
- note of which door the sheet was behind and whether it tore.
Evidence: Lexmark MS410 Series User's Guide - Clearing jams
Confirm the paper suits two-sided printing
- Who:
- you.
- How:
- compare the paper type and weight with the guide's table: bond and heavy only up to 90 g/m2 in duplex, and Universal size only from 210 x 279 mm; if it does not qualify, print that job single-sided.
- Result that matters:
- not sending media through the duplex path that Lexmark does not support there.
- If the paper was unsuitable:
- the jam had a clear reason and stops with the right media.
- If the paper is ordinary and supported:
- focus on how it is loaded.
- Evidence to keep:
- paper ream label or spec sheet showing its weight.
Evidence: Lexmark MS410 Series User's Guide - Clearing jams
Reload tray 1 calmly
- Who:
- you.
- How:
- wait until no job is running, flex and align the sheets, lay them flat below the fill indicator, set the guides without pressure and push the tray fully in; confirm size and type on the panel or computer.
- Result that matters:
- the sheet feeding straight and not stalling on the second side path.
- If two-sided jobs print without jams:
- the loading was the problem.
- If 23y.xx persists with suitable, well loaded paper:
- book a Lexmark authorised repair visit.
- Evidence to keep:
- count of jams before and after reloading.
Evidence: Lexmark MS410 Series User's Guide - Clearing jams
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 230.xx
- Lexmark 231.xx
- Lexmark 23y.xx
- Lexmark atasco extraiga la bandeja 1 presione la solapa azul
- Lexmark atasco impresión a doble cara 23y
- Lexmark jam pull tray 1 push down blue flap
- Lexmark MS410 atasco dúplex
- Lexmark MS410 duplex jam
- Lexmark two-sided printing jam 23y
What it means
The MS410 series user guide ties code 23y.xx to the message Jam, pull tray 1. Push down blue flap. It covers the front duplex section, which turns the sheet over to print the second side, and you reach it by removing the standard tray. Lexmark notes that some 23y.xx jams also need the rear door opened, and the inside there can be hot. Other Lexmark models may place the jam differently. The message on its own does not confirm a faulty duplex unit; paper unsuited to two-sided printing or loaded badly is the usual reason.
Warnings and stop conditions
- Mediumsource verified
Do not pull out or refill the tray while the printer is working; Lexmark lists it among the habits that cause jams.
Evidence: Lexmark MS410 Series User's Guide - Clearing jams
- Highsource verified
Lexmark's guide warns the inside may be hot: if you must open the rear door, let it cool before touching anything.
Evidence: Lexmark MS410 Series User's Guide - Clearing jams
Symptoms and causes
Probable causes · in order
- Paper not supported in duplex modeCommon
The guide's paper type table limits bond and heavy paper in duplex to 90 g/m2, and labels, envelopes or card stock are not listed for two-sided printing.
Evidence: Lexmark MS410 Series User's Guide - Clearing jams
- Universal size too small for two-sided printingPossible
Lexmark says Universal size works in duplex only when the sheet is at least 210 mm wide and 279 mm long; a smaller sheet can stall in that section.
Evidence: Lexmark MS410 Series User's Guide - Clearing jams
- Tray 1 stack badly preparedCommon
A skewed stack, one above the fill indicator or guides squeezing the paper make the sheet arrive crooked at the return path.
Evidence: Lexmark MS410 Series User's Guide - Clearing jams
- Tray pulled or refilled during printingPossible
The guide says not to remove or load a tray while printing; doing so in the middle of a two-sided job leaves sheets halfway through.
Evidence: Lexmark MS410 Series User's Guide - Clearing jams
Virtual technician
Does 23Y.XX 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 MS410 Series User's Guide - Clearing jams
Lexmark International · 2014 · official_doc
- 2
Guía del usuario Lexmark serie MS410 - Eliminación de atascos
Lexmark International · 2014 · official_doc
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