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Double Feeding

Depending on the cause of the problem, do one of the following:

Is the paper feed roller covered with paper dust?

Paper dust may decrease the traction of the paper feed roller and result in double feeding due to paper slippage or insufficient separation.

Cleaning the paper feed roller will restore traction and so prevent double feeding.

For details about cleaning the paper feed roller, see Cleaning the Paper Feed Path.

For details about removing the paper feed roller, see Replacement Guide.

The two-tray wide LCT (Vacuum Feed LCIT RT5100) does not have paper feed rollers.

Have you ruffled the paper sufficiently?

Double feeding may result if the paper is not ruffled properly.

Remove the paper, ruffle it, and reload it.

For details about ruffling the paper, see "Fanning the paper", About This Machine.

If the separation pressure level has been adjusted

For any of trays 1 to 3, if the separation pressure adjuster has been changed to a non-default separation pressure, double feeding may occur, depending on the paper type used.

Double feeding can be prevented by changing the separation pressure level back to the default position.

Is the Pickup Assist setting enabled?

If the Pickup Assist function operates too much, it may cause double feeding with coated paper.

By disabling the Pickup Assist setting, you can prevent double feeding.

The two-tray wide LCT (Vacuum Feed LCIT RT5100) does not have the Pickup Assist function.

<If custom paper is used>

  1. In [Advanced Settings] for the custom paper in use, set [Pickup Assist Setting] to [Off].

<If custom paper is not used>

  1. In the [Machine: Paper Feed/ Output] group on the [Adjustment Settings for Skilled Operators] menu, set [Pickup Assist Setting] to [Off].

Special or coated paper is used.

  • Is the airflow strong enough?

    The factory-set airflow of the three-tray wide LCT (LCIT RT5080) may not be strong enough to separate the sheets. Increase the airflow.

    <If custom paper is used>

    1. In [Advanced Settings] for the custom paper in use, increase the value in [Adjust Wide LCT Fan Level].

    <If custom paper is not used>

    1. In the [Machine: Paper Feed/ Output] group on the [Adjustment Settings for Skilled Operators] menu, increase the value in [Adjust Wide LCT Fan Level].

  • Is the tab fence attached?

    By attaching the tab fence, you can prevent air from leaking at the trailing edge of the paper and improve separation.

    For details about attaching the tab fence, see "About This Machine" supplied with the machine.

Two-tray wide LCT (Vacuum Feed LCIT RT5100) is used.

The factory-set airflow of the wide LCT may not be strong enough to separate the sheets.

Increase the airflow.

  1. In [Advanced Settings] for the custom paper you are using, set [Paper Feed Mode (Adjust Fan Level)] to [Modrate Dble Fd Red. (Lower)].

  2. If the problem persists, set [Paper Feed Mode (Adjust Fan Level)] to [Max Dble Fd Reduc. (Lowest)].

  3. If the problem persists, increase the value in [Blower Fan] by 10%.

  4. If the problem persists, increase the value an additional 10% in [Blower Fan].

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