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Error code reference

Samsung Multifunction Printer Error Code U3-3113

Document jam detected in ADF/DADF unit.

Samsung codesSamsung multifunction printer codes

Document jam detected in ADF/DADF unit.

First step from the service manual

Remove the jammed paper; if persists, turn off then on and check pick up unit roller condition.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What U3-3113 means on a Samsung multifunction printer

The U3-3113 error code on a Samsung multifunction printer indicates that the automatic document feeder (ADF) or duplex automatic document feeder (DADF) unit has detected a document jam. The ADF/DADF system uses a series of sensors positioned along the paper path to monitor document movement during scanning or copying operations. When a sheet fails to reach or clear a sensor within the expected time window, the firmware halts the feed cycle and triggers this code to prevent mechanical damage or document tearing.

The pick-up roller assembly is a primary suspect when this error occurs. Over time, the rubber surface of the pick-up rollers wears smooth, reducing the friction needed to reliably grab and advance documents through the feeder. Worn rollers may pull sheets unevenly, causing misfeeds, skewed feeds, or partial advances that result in jam detection. Dust, paper debris, and residue from coated or glossy sheets can also coat the roller surface and contribute to slippage.

Additional causes include torn or crumpled document fragments left inside the paper path from a previous jam, which can obstruct sensor beams or physically block sheet movement. Environmental factors such as high humidity can cause document sheets to stick together or curl, making them difficult for the feeder to separate and advance individually. A thorough inspection of the entire ADF paper path, including the feed rollers, separation pad, and all sensor windows, is recommended when the jam cannot be cleared by simply removing the visible document.

Source: manufacturer service documentation.

Common causes of U3-3113

  1. 01

    Worn or glazed pick-up roller

    Part replacement

    The rubber pick-up roller loses grip as it wears, causing it to slip on document surfaces instead of pulling them through cleanly. Inspect the roller surface for a smooth, shiny appearance rather than a matte, textured grip surface.

  2. 02

    Document fragment or debris in paper path

    Wiring / connection

    A torn piece of paper or other debris from a previous jam can remain inside the ADF unit and obstruct the path or block a sensor. Open all ADF access panels and inspect the full paper path carefully with a flashlight.

  3. 03

    Improper document preparation

    Wiring / connection

    Documents with staples, tape, tears, folds, or inconsistent thickness can snag inside the feeder and trigger the jam sensor. Always ensure documents are flat, undamaged, and within the supported weight and size specifications before feeding.

  4. 04

    Dirty or contaminated rollers

    Wiring / connection

    Accumulated dust, paper coating residue, or ink from documents can reduce roller friction and cause inconsistent feeding. Wipe the roller surfaces with a lint-free cloth lightly dampened with water or isopropyl alcohol.

  5. 05

    Worn separation pad

    Part replacement

    The separation pad works together with the pick-up roller to prevent multiple sheets from feeding at once. If the pad is worn, sheets can stick together and cause a jam shortly after entering the feeder.

See the test procedure for each cause

Frequently asked questions about U3-3113

What does U3-3113 mean on a Samsung multifunction_printer?
U3-3113 means the printer has detected a document jam in the automatic document feeder (ADF) or duplex automatic document feeder (DADF) unit. The feeder's sensors have determined that a document failed to move through the paper path correctly and the feed cycle was stopped to prevent damage. You will need to remove any jammed documents and inspect the feed rollers before resuming operation.
How do I fix the U3-3113 error on my Samsung printer?
Start by carefully opening the ADF cover and removing any jammed or partially fed documents. Check the entire paper path for torn fragments and remove them completely. Once cleared, power the printer off, wait about 30 seconds, and power it back on. If the error returns, inspect the pick-up roller for wear or contamination and clean or replace it as needed.
Will resetting my Samsung printer clear the U3-3113 error?
A power cycle, turning the printer off and back on, can clear the error code after the physical jam has been removed. However, if the underlying cause is a worn pick-up roller or separation pad, the error will return with the next document feed attempt. A reset alone will not resolve mechanical wear or debris inside the paper path.
Is it safe to keep using my printer with the U3-3113 error?
You should not continue feeding documents through the ADF while this error is active, as doing so risks tearing documents or causing further mechanical damage inside the feeder unit. The flatbed glass can still be used for scanning individual pages as a workaround while the ADF issue is being diagnosed and corrected.
How much does it cost to repair a Samsung printer showing U3-3113?
If the fix is a simple cleaning of the rollers and removal of debris, there may be no parts cost at all. Replacement pick-up roller kits for Samsung ADF units typically range from around $15 to $50 depending on the specific model. If the repair requires a service technician, total costs including labor generally fall in the range of $75 to $200, though complex DADF assembly repairs can cost more.

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