C260e-STUDIO 2309A

How to Resolve Error C260 on Toshiba e-STUDIO 2309A

The C260 error code on the Toshiba e-STUDIO 2309A indicates a CIS (Contact Image Sensor) peak detection abnormality. This occurs when the scanning carriage fails to perform correct white level auto-calibration against the internal reference strip during initial bootup.

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Common causes

  • 1Dust, spots, or residue on the white reference glass/calibration plate.
  • 2Faulty CIS sensor assembly or failing exposure lamp.
  • 3Damaged, twisted, or unplugged Flat Flexible Cable (FFC).
  • 4Main SYS board failure.

Solutions

A C260 error is frequently caused by dirt on the optics or a faulty data ribbon cable (FFC) connecting the scanning bed to the system board.

Troubleshooting and Diagnosis Steps:

  1. Clean the Calibration Plate: Lift the platen cover or document feeder. Access the white calibration strip situated under the left-hand guide of the glass scanner. Wipe it clean of any dust, toner, or adhesive residue.
  2. Inspect the Flat Flexible Cable (FFC): The scanning carriage constantly moves, which can cause wear, tears, or loose connections in the ribbon cable over time. Check for continuity and make sure the contacts are firmly seated.
  3. Test CIS Sensor Functionality: Power the machine on and verify if the scanning lamp lights up bright white. A dim, flickering, or colored output indicates a worn-out CIS sensor unit.

Steps to follow

  1. 1

    Clean the scan glass and reference strip

    Use a microfiber cloth and a mild window cleaner to thoroughly clean the glass bed, particularly the underside of the left side panel.

  2. 2

    Check carriage movement

    With the machine powered off, manually slide the scan carriage back and forth to ensure there is no mechanical blockage on the guide rail.

  3. 3

    Inspect and reseat scanner cables

    Open the scanner unit housing, disconnect and clean the gold pins of the ribbon cable, and securely reconnect them to the mainboard.

Frequently asked questions

Yes, cleaning the calibration strip is highly effective. If there is debris blocking the light feedback, the scanner cannot calculate its white baseline and halts with a C260 code.

Typically, yes. If the scanning unit fails, you may still be able to send network print jobs, although local copying and scanning features will remain disabled until resolved.