e-405C112

OKI C112 Error E-405: Paper Sensor Fix

The OKI C112 error E-405 alerts users to a paper sensor fault in the feed path. This error code effectively locks the device, as it cannot detect the presence of paper to begin a print cycle.

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Common causes

  • 1Dust build-up
  • 2Sensor arm stuck
  • 3Misaligned paper
  • 4Hardware sensor failure

Solutions

Quick diagnosis

Error E-405 is triggered by paper dust on the sensor or a physically stuck sensor arm. Always verify the tray guides first.

Step-by-step solution

  1. Remove all paper from the input tray.
  2. Blow air into the sensor area to dislodge dust.
  3. Reload fresh paper and align the tray guides.
  4. Power cycle the device.

Prevention and maintenance

Keep the machine environment clean and use standard 80g paper to reduce dust build-up.

When to call a technician

If the error persists after cleaning, the sensor hardware might have failed.

Technical data

  • Technology: LED Digital
  • Speed: 20 ppm
  • Connectivity: USB 2.0
  • Compatible supply: C112 series / 444697XX
  • Recommended use: Small office
  • Official drivers / firmware

Steps to follow

  1. 1

    Empty tray

    Remove existing paper.

  2. 2

    Clean

    Use compressed air.

  3. 3

    Reload

    Insert new sheets.

  4. 4

    Restart

    Power cycle.

Frequently asked questions

The paper sensor isn't detecting media correctly.

No, it prevents printing to protect internal components.

C112 compatible series.

Use compressed air only.