Light Choke Cleaning Method

If uneven color issues with white ink are not resolved even after performing Powerful Cleaning, perform Light Choke Cleaning. Uneven colors refers to the symptom of printed colors being uneven (such as the color density being inconsistent) even when the same data is printed with the same settings.

Light Choke Cleaning can be used to stabilize the output colors by replacing the white ink.

IMPORTANT

Light Choke Cleaning consumes a lot of ink, and too-frequent use may damage the print heads themselves. Avoid performing this operation more than necessary.

Procedure
  1. Tap AP-640_Panel_Icon_MENU.
  2. Tap Maintenance - Light Choke Cleaning.
  3. Select the group with uneven colors.
    • Group A: White ink
    • Group B: CMYK ink
    • Both: White ink and CMYK ink
  4. Tap Execute.

    Cleaning will start. On completion, you will return to the original screen.

    MEMO
    If Discard the discharged fluid in the bottle. appears after tapping Execute

    LG_RemoveDrainBottle2

    1. Remove the drain bottle and discard the discharged fluid.

      When you remove the drain bottle, a few drops of discharged fluid may come out of the machine. Exercise caution to prevent this fluid from soiling your hands or the floor.

    2. Quickly attach the emptied drain bottle to the machine once more.
    3. Tap Finish.
    WARNING

    Never place discharged fluid or ink near an open flame.

    Doing so may cause a fire.

    CAUTION

    Before you detach the drain bottle, be sure to wait for the screen to display Discard the discharged fluid in the bottle.. After discarding the discharged fluid, promptly attach the drain bottle to the machine.

    Failing to follow this procedure may cause discharged fluid to flow out of the tube and spill, soiling your hands or the floor.

    CAUTION

    To store discharged fluid temporarily, place it in the included drain bottle or in a durable sealed container such as a metal can or polyethylene tank, and cap the container tightly.

    Any spillage or vapor leakage may cause fire, odor, or physical distress.

    IMPORTANT

    • Do not store discharged fluid in a location where it is exposed to direct sunlight.

      When temporarily storing discharged fluid in the included drain bottle, do not store it in a location that is exposed to direct sunlight. The discharged fluid may harden, making the drain bottle unusable. The drain bottle may also deteriorate, leading to discharged fluid leaks.

    • Dispose of discharged fluid properly, in accordance with the laws in effect in your locale.

      Discharged fluid is flammable and contains toxic ingredients. Never attempt to incinerate discharged fluid or discard it with ordinary trash. Also, do not dispose of it in sewer systems, rivers, or streams. Doing so may have an adverse impact on the environment.

  5. If uneven output color issues are not resolved even after performing Light Choke Cleaning, perform Ink Renewal.
  6. Tap AP-640_Panel_Icon_HOME to go back to the original screen.