err-paper-sizeSELPHY CP1000

Canon SELPHY CP1000 err-paper-size error: Troubleshooting

The Canon SELPHY CP1000 err-paper-size error indicates a discrepancy between the detected paper format and the current printer software settings. This warning is common when switching printing kits without updating format settings in the control panel. The device is strict about using designated input trays for every paper measurement.

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Common causes

  • 1Incongruity between menu settings and the inserted physical cassette.
  • 2Paper displacement in the cassette preventing the edge sensor from detecting it.
  • 3Use of non-original paper with slightly different dimensions.
  • 4Size detection sensor obstructed by paper debris.

Solutions

Diagnóstico rápido

If you see the err-paper-size warning, check if the physical cassette matches the size shown on the display. Often, the error arises from using a card-type paper with settings configured for postcard format.

Solución paso a paso

  1. Remove the cassette and verify the paper is compatible with the tray.
  2. Access the 'Settings' menu on the printer's LCD.
  3. Select 'Paper Size' and adjust it to match the actual consumable.
  4. Ensure no residual paper is trapped in the exit slot.

Prevención y mantenimiento

Always keep paper in its protective envelope to prevent humidity from affecting its dimensions. Do not mix paper types in the same tray. Clean the inside of the paper cassette with a dry cloth to remove dust that might interfere with detection sensors.

Cuándo llamar a un técnico

If the error persists after configuring the size correctly, the cassette detection sensor may be misaligned or faulty.

Ficha técnica del equipo

  • Technology: Dye-sublimation
  • Formats: Postcard, Card, Labels (based on cassette)
  • Input capacity: 18 sheets (depending on format)
  • Compatible Consumables: KP and KC series (postcard/card format)
  • Recommended use: Events, ID photos, and home use
  • Official drivers / firmware

Steps to follow

  1. 1

    Check paper and cassette

    Ensure the paper size matches the cassette in use.

  2. 2

    Adjust menu settings

    Enter the printer menu and set the 'Paper Size' to match the loaded cassette.

  3. 3

    Retry print

    Confirm the settings and retry the print job.

Frequently asked questions

It appears when the software setting does not match the inserted cassette.

Yes, but each size requires its own specific physical cassette.

Supports postcard format (KP-108), card size, and adhesive labels (KC series).

Usually not, unless the error persists after correct configuration; then clean the edge sensors.

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