mypros+
Error code reference

Samsung Multifunction Printer Error Code S2-4110

Door is open or the cover open switch is defective; status LED is red.

Samsung codesSamsung multifunction printer codes

Door is open or the cover open switch is defective; status LED is red.

First step from the service manual

Check if front and rear doors are closed perfectly; check connection between main board and HVPS board.

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

MyPros+ Max

Get the full diagnostic procedure for S2-4110.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What S2-4110 means on a Samsung multifunction printer

The S2-4110 error code on a Samsung multifunction printer indicates that the printer has detected an open door condition, or that the cover open switch responsible for monitoring door status is defective. The printer's control system continuously monitors the state of the front and rear access doors through a dedicated switch circuit. When this circuit signals an open state, either because a door is genuinely ajar or because the switch or its wiring has failed, the printer halts operation and illuminates the status LED in red to alert the user.

The cover open switch communicates door status to the main board. A critical signal path runs between the main control board and the High Voltage Power Supply (HVPS) board. If this connection is damaged, loose, or interrupted, the printer may incorrectly interpret the door as open even when it is physically closed. The HVPS board requires confirmation that all doors are secured before it enables high-voltage output for the print process, so any fault in this communication path will trigger the S2-4110 code.

Common root causes include a door that is not fully latched, debris or damage preventing proper door closure, a failed or misaligned cover open switch, or a wiring harness issue between the main board and the HVPS board. Diagnosing this error involves physically verifying that both the front and rear doors are completely closed and latched, then inspecting the connector and wiring between the main board and HVPS board for looseness, corrosion, or damage before testing or replacing the switch itself.

Source: manufacturer service documentation.

Common causes of S2-4110

  1. 01

    Door not fully closed or latched

    Wiring / connection

    The front or rear door may not be fully seated in the closed position. Check both doors carefully, pressing firmly until you hear or feel the latch engage.

  2. 02

    Loose or damaged connection between main board and HVPS board

    Wiring / connection

    The wiring harness or connector linking the main control board to the HVPS board may be loose, corroded, or damaged, causing the printer to incorrectly report an open door. Inspect the connector at both ends for secure seating and visible damage.

  3. 03

    Defective or misaligned cover open switch

    Part replacement

    The cover open switch itself may have failed electrically or shifted out of alignment so it no longer actuates properly when the door closes. The switch may need to be realigned or replaced.

  4. 04

    Debris or obstruction preventing door closure

    Wiring / connection

    A piece of torn paper, a foreign object, or a warped door panel can prevent the door from closing completely and actuating the switch. Inspect the door edges and hinge areas for any obstruction.

  5. 05

    Damaged or worn door latch mechanism

    Part replacement

    The physical latch that holds the door closed may be broken or worn, preventing the door from staying fully seated against the switch actuator. A damaged latch will require a replacement part.

See the test procedure for each cause

Frequently asked questions about S2-4110

What does S2-4110 mean on a Samsung multifunction_printer?
The S2-4110 error means the printer has detected that a door or cover is open, or the switch that monitors door status has failed. The status LED turns red and printing stops until the condition is resolved. The error involves a signal path between the cover open switch, the main board, and the HVPS board.
How do I fix the S2-4110 error on my Samsung printer?
Start by firmly closing both the front and rear doors, pressing until the latch clicks into place. If the error remains, inspect the wiring connector between the main board and HVPS board for looseness or damage and reseat it. If those steps do not resolve the issue, the cover open switch itself may need to be tested and replaced.
Will resetting the printer clear the S2-4110 error?
A power cycle or reset may temporarily clear the error display, but the code will return immediately if the underlying cause is not addressed. If a door is not properly closed or the switch is defective, the printer will continue to detect the fault every time it checks door status. A reset is not a fix for this error.
Is it safe to continue using my printer while the S2-4110 error is active?
No. The printer is designed to stop operation when this error is active because the HVPS board will not enable high-voltage output until all doors are confirmed closed. Attempting to bypass or ignore this safety interlock could expose internal components to damage and poses a risk to the user. The error should be resolved before resuming printing.
How much does it cost to repair a Samsung printer showing the S2-4110 error?
If the fix is simply reseating a door or a connector, there is no parts cost involved. If the cover open switch needs replacement, parts typically range from a few dollars to around $20 to $40 depending on the model. If the HVPS board or main board connection wiring has failed, repair costs including labor could range from $50 to $150 or more, depending on service rates in your area.

Related Samsung multifunction printer codes

All Samsung multifunction printer codes
View all 59 Samsung multifunction printer codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass