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Error code reference

Samsung Multifunction Printer Error Code U3-3313

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; check ADF/DADF drive unit and connection to scanner.

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

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What U3-3313 means on a Samsung multifunction printer

Error code U3-3313 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. The ADF/DADF system relies on a series of feed rollers, separation pads, and positional sensors to move documents through the scan path at a controlled rate. When a document fails to advance, stalls, or becomes lodged along this path, the sensor array detects the obstruction and triggers U3-3313 to halt operation and prevent further media damage.

The drive unit within the ADF/DADF assembly powers the roller train that moves paper through the feeder. If the drive unit loses connection to the scanner control board, or if its motor fails to respond, the printer firmware interprets the resulting sensor state as a jam condition even when no physical obstruction is present. The connection between the ADF/DADF drive unit and the scanner is a common point of failure due to cable fatigue from the repeated opening and closing of the ADF lid over the unit's service life.

Common physical causes include torn or crumpled paper fragments remaining in the feed path after an initial jam, worn separation pads that allow multiple sheets to feed simultaneously, and degraded pick rollers that lose grip and cause sheets to skew or stall. Environmental factors such as high humidity, oversized documents, or paper with coated finishes can also contribute to recurring jam events in the ADF/DADF path.

Source: manufacturer service documentation.

Common causes of U3-3313

  1. 01

    Paper or torn fragment lodged in ADF/DADF path

    Wiring / connection

    A sheet or piece of a torn page is physically blocking the document feed path. Open the ADF/DADF cover fully and inspect the entire paper path, including under rollers, for any remaining fragments.

  2. 02

    Worn or glazed ADF pick and separation rollers

    Part replacement

    Over time, pick and separation rollers lose their grip surface, causing sheets to skew, double-feed, or stall midway through the scan path. Inspect the rollers for smooth, shiny surfaces or visible cracking as indicators of wear.

  3. 03

    Loose or damaged ADF/DADF drive unit cable connection

    Wiring / connection

    The cable connecting the ADF/DADF drive unit to the scanner control board can loosen or develop breaks from repeated lid movement. A disconnected or intermittent cable causes the printer to report a jam even when no paper is present.

  4. 04

    Faulty ADF/DADF drive unit

    Part replacement

    The motor or gear assembly within the drive unit may have failed, preventing the roller train from advancing documents correctly. If the connection and paper path check out but the error persists, the drive unit itself may need replacement.

  5. 05

    Incompatible or damaged document stock

    Wiring / connection

    Overly thick, crumpled, stapled, or coated paper fed into the ADF/DADF can jam the feeder and potentially leave debris behind. Verify that the document stock meets the printer's supported media specifications before reloading.

See the test procedure for each cause

Frequently asked questions about U3-3313

What does U3-3313 mean on a Samsung multifunction_printer?
U3-3313 is a document jam error specific to the ADF or DADF unit on Samsung multifunction printers. It means the printer's sensors detected that a document failed to move through the automatic feeder as expected. The error halts all scanning and copying functions until the jam is cleared and the feeder is confirmed operational.
How do I fix error U3-3313 on my Samsung printer?
Start by opening the ADF/DADF cover and carefully removing any jammed or torn paper from the entire feed path, including areas beneath the rollers. After clearing the path, check that the cable connecting the ADF/DADF drive unit to the scanner is firmly seated. If the error returns after clearing the jam, inspect the pick and separation rollers for wear and test the drive unit connection for damage.
Will resetting the printer clear the U3-3313 error?
A power cycle or soft reset will typically clear the error code from the display, but it will return immediately if the underlying cause has not been resolved. The jam must be physically cleared and any faulty connections or components must be addressed before the printer will resume normal ADF/DADF operation. Resetting without fixing the root cause is only a temporary measure.
Is it safe to keep using the printer while U3-3313 is active?
The printer disables ADF/DADF functions when U3-3313 is active, so attempting to force documents through the feeder during this condition risks damaging the feed rollers, tearing the document, or worsening any existing paper jam. It is safe to use the flatbed glass for scanning if available, but the ADF/DADF should not be operated until the error is resolved.
How much does it cost to repair a Samsung printer showing U3-3313?
If the fix involves only clearing a paper jam or reseating a cable, there is no parts cost and only your time is required. Replacement ADF roller kits typically range from $15 to $50 depending on the specific printer model. If the ADF/DADF drive unit itself needs replacement, parts and labor costs can range from $80 to $200 or more, depending on parts availability and service rates in your area.

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