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Error code reference

Samsung Multifunction Printer Error Code U3-3114

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 U3-3114 means on a Samsung multifunction printer

The U3-3114 error code on a Samsung multifunction printer indicates that a document jam has been detected within the Automatic Document Feeder (ADF) or Duplex Automatic Document Feeder (DADF) unit. This sensor-based detection triggers when the ADF's paper path sensors register either a sheet that has failed to advance through the feed mechanism within the expected time window, or a sheet that has become physically obstructed somewhere along the document feed path from the input tray through the scanning zone and into the output area.

The ADF/DADF unit relies on a series of rollers, including the pick-up roller, feed roller, and separation pad, to draw individual sheets from the stack and transport them smoothly through the scanning assembly. When any of these components degrades, wear causes inconsistent grip on the paper, which leads to misfeeds, skewed sheets, or stopped sheets that trigger the jam sensor. Debris accumulation, torn paper fragments left in the paper path, or overly thick/curled media can also interrupt normal sheet travel and generate this fault.

Clearing the error requires physically removing all jammed or partially fed documents from the ADF input tray, feed path, and output area. After clearing the jam, a power cycle is the next step if the error persists. If the error recurs across multiple jobs, the condition of the pick-up roller should be inspected closely for glazing, cracking, or significant wear, as a degraded roller is a leading cause of repeated ADF jam faults in this printer family.

Source: manufacturer service documentation.

Common causes of U3-3114

  1. 01

    Jammed or torn document in ADF paper path

    Wiring / connection

    A sheet or torn fragment is physically blocking the feed path inside the ADF/DADF unit. Open all ADF access panels and inspect the full paper path, including the area under the scanning glass, for any remaining scraps.

  2. 02

    Worn or glazed pick-up roller

    Part replacement

    The pick-up roller degrades over time and loses the friction needed to reliably grab and advance sheets. Signs include repeated jams at the start of the feed cycle, multiple-sheet feeds, or failure to pick at all.

  3. 03

    Improper document loading or incompatible media

    Wiring / connection

    Overfilling the ADF tray, mixing sheet sizes, or feeding curled, torn, or excessively thick documents can cause sheets to misfeed and trigger the jam sensor. Ensure documents meet the supported media specifications and the stack does not exceed the tray capacity.

  4. 04

    Debris or paper fragments in the feed path

    Wiring / connection

    Small torn pieces, sticky note adhesive residue, or dust buildup along the rollers or sensor area can obstruct sheet travel. A thorough cleaning of all accessible rollers and guides with a lint-free cloth is recommended.

  5. 05

    Faulty ADF jam sensor

    Part replacement

    If jams are reported even when the paper path is completely clear and rollers are in good condition, a malfunctioning paper-presence or feed sensor within the ADF unit may be generating a false jam signal. This typically requires component-level diagnosis or ADF unit service.

See the test procedure for each cause

Frequently asked questions about U3-3114

What does U3-3114 mean on a Samsung multifunction_printer?
U3-3114 is a document jam error specific to the ADF or DADF unit on Samsung multifunction printers. It means the printer's sensors have detected that a sheet fed through the automatic document feeder has stopped moving or become obstructed in the paper path. The printer halts all ADF-based operations until the jam is cleared and the error is resolved.
How do I fix the U3-3114 error on my Samsung multifunction printer?
Start by opening the ADF cover and gently removing any jammed pages, pulling in the direction of paper travel to avoid tearing. Check the entire feed path including the input tray, internal rollers, and output area for torn fragments. After clearing all paper, power the printer off completely, wait about 30 seconds, and power it back on. If the error returns on subsequent jobs, inspect the pick-up roller for wear and clean all ADF rollers with a lint-free cloth.
Will resetting my Samsung printer clear the U3-3114 error?
A power cycle (turning the printer fully off and back on) can clear the U3-3114 error after the jammed document has been physically removed. However, if the underlying cause is a worn pick-up roller, debris in the paper path, or a faulty sensor, the error will return with the next ADF job. The reset alone is not a fix if the root cause has not been addressed.
Is it safe to continue using my printer when U3-3114 appears?
ADF-based scanning and copying functions will be unavailable while this error is active, but flatbed scanning directly on the glass is generally unaffected. It is safe to use the printer in that limited capacity. Attempting to force documents through a jammed feeder can cause torn paper fragments to become lodged deeper in the mechanism, so avoid pulling documents against the direction of travel.
How much does it cost to fix a U3-3114 jam error on a Samsung multifunction printer?
If the fix is simply removing a jammed document and cleaning the rollers, there is no parts cost involved. If the pick-up roller is worn and needs replacement, roller kits for Samsung ADF units typically range from around $15 to $50 depending on the specific model. If a sensor or internal ADF component requires replacement and professional service is needed, labor and parts combined can range from $75 to $200 or more depending on the service provider and printer model.

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