RGB PATTERN [B30]

Paper and Feed Tray
  • Paper size: A4/Letter
  • Paper type: Plain paper
  • Paper feed tray: Paper cassette (C1) to paper cassette (C2), rear tray
Check pattern

Judgment

Visually check the banding levels of the check pattern to confirm that there is no problem.

Work procedure
  1. Start the service support mode. (Service mode startup and operating procedures)
  2. Select “Adjustment Main Unit: MENU” from the service support mode top menu.
  3. Select “RGB Pattern”.

    Check Point / チェックポイント

    Select and execute the corresponding adjustment item using either procedure below.

    • Selecting by entering the program number

    1. Select “Input B No.-Main Unit Adjust” from the Adjustment menu.
    2. Press the [#] button and software number key is displayed on LCD. Enter program number “30”.
    3. Press the [#] button.
    • Selecting from menu

    1. Select “Individual Adjustment: MENU” from the Adjustment menu.
    2. Select “Printing Check: MENU” from the Individual Adjustment menu.
    3. Select “RGB Pattern” from the Printing Check menu.
  4. The following screen will be displayed.
  5. Load paper into the paper feed tray.
  6. Press the [#] button to print the check patterns.
  7. Check the check pattern. If the result is NG, refer to the table below to take action.
No. Symptom Suspected cause Measure
1 Multiple white bands are occurring. Nozzles missing
  1. Check the head state.
  2. Perform cleaning in diagnostic mode.
  3. Perform manual cleaning, etc.
2 The banding level differs depending on the color. LUT_POL adjustment value is incorrect. Adjustment value is not suited to environmental changes Perform adjustment again.(LUT_POL adjustment (easy adjustment, adjustment by paper type))
3 White bands are occurring overall. Adjustment is incorrect.(Band adjustment, easy adjustment, adjustment by paper type) Perform adjustment again.(LUT_POL adjustment (easy adjustment, adjustment by paper type))
4 Dark lines are occurring overall. Adjustment is incorrect.(Band adjustment, easy adjustment, adjustment by paper type) Perform adjustment again. If this does not rectify problem,a probable cause is a defective mechanism.
5 White banding or black banding is occurring at the top and middle of the pattern. Adjustment is incorrect. Perform band feed adjustment again.
6 White banding or black banding is occurring at the bottom edge. Adjustment is incorrect. Perform band feed adjustment again.