30e120n

Lexmark E120n error 30: Paper Jam Detected

Lexmark E120n error 30 signifies a paper jam located within the internal path of the printer. This error alerts the user to stop printing immediately to prevent mechanical damage. It commonly stems from moist paper, incorrect tray settings, or aged pickup rollers losing their friction. Follow these instructions for a clean and safe removal of the obstruction.

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Common causes

  • 1Damp paper: Humidity causes paper to curl and block the path.
  • 2Roller wear: Worn rollers cannot grip paper properly.
  • 3Debris: Small paper fragments blocking internal sensor flags.
  • 4Tray settings: Improper guide alignment causing skewing.

Solutions

Diagnóstico rápido

Error 30 on the Lexmark E120n is confirmed by blinking indicator lights on the control panel. Open the main lid; if the paper is crinkled or stuck in the fuser area, you have found the jam.

Solución paso a paso

  1. Power off: Turn off the printer and unplug the power to ensure safety.
  2. Remove cartridge: Take out the toner cartridge for better access to the print path.
  3. Remove paper: Gently pull the jammed paper using both hands to prevent tearing.
  4. Final check: Ensure no small scraps remain near the exit sensor.

Prevención y mantenimiento

Fan the stack of paper before inserting it to prevent sheets from sticking. Regularly wipe the pickup rollers with isopropyl alcohol to maintain paper grip.

Cuándo llamar a un técnico

If jams persist without any visible paper, the printer's fuser unit or internal sensors may be damaged and require expert servicing.

Ficha técnica del equipo

  • Technology: Laser
  • Tray capacity: 150 sheets
  • Compatible paper: 60-163 g/m²
  • Connectivity: USB/Ethernet
  • Consumable: E120 series toner
  • Maintenance: Roller cleaning every 10,000 pages
  • Drivers / official firmware

Steps to follow

  1. 1

    Power off

    Turn off the printer and unplug the power to ensure safety.

  2. 2

    Remove cartridge

    Take out the toner cartridge for better access to the print path.

  3. 3

    Remove paper

    Gently pull the jammed paper using both hands to prevent tearing.

Frequently asked questions

The internal sensors detected that paper is blocking the movement path.

Yes, provided you pull slowly and gently to avoid damaging the sensors.

Standard 20lb (75-90g) paper is ideal to minimize jams.

Yes, dirty rollers are a frequent cause of paper path issues.