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HP LaserJet Enterprise M604, M605, M606 - Control-panel diagnostics

Touchscreen diagnostic mode (M605x and M606x only)

Use the diagnostics in this section to test the control-panel hardware and embedded firmware. These tests are useful for checking control-panel functionality independent of the printer control-panel system diagnostics. To test the control panel using the system diagnostics, see Control-panel system diagnostics (touchscreen control panel).
  1. Locate the diagnostic-tests access button on the back of the control panel.
    Figure : Diagnostic-tests access button
  2. Press the diagnostics-access button. Repeatedly pressing the button cycles through the available diagnostics.
    note:
    A pen, pencil, or other small blunt object is needed to press the button.
    note:
    When pressed, the button illuminates green.
    Figure : Press the diagnostics-access button
  3. A yellow screen appears (after the first press of the button) indicating that the control-panel firmware is version A (a magenta screen indicates version B firmware).
    note:
    If a different color appears on the screen, contact your global business unit (GBU) to determine the firmware version.
    note:
    After 4 seconds of inactivity, the diagnostic mode times out and is exited.
    Figure : Control-panel version A yellow screen
  4. Touch the screen to cycle the screen through the following:
    • A red screen, a green screen, and a blue screen.
    • Five brightness levels of a white screen.
    • A final black screen.
      note:
      When the final black screen displays, press the Home button to cycle through the diagnostic screens and test its functionality.
    Figure : Touch the screen to advance colored screens
  5. Pressing the diagnostic-tests button with the black screen displayed, exits the diagnostic mode.
    Figure : Exit the diagnostic mode

Control-panel system diagnostics (touchscreen control panel)

Use the diagnostics in this section to test the control-panel hardware and display using the printer firmware system diagnostics.

Open the control-panel system diagnostic tests

Open the control-panel system diagnostic tests from a touchscreen control panel
  1. Touch the HP logo in the middle of the control-panel display when you see the 1/8 under the logo.
    Figure : Open the Pre-boot menu
  2. On the Pre-boot menu screen, use the following buttons to navigate the tests.
      Figure : Pre-boot menu
    1. Use this button to see more information about a selected item.
    2. Use this button to scroll up through menu items.
    3. Use this button to select a highlighted menu item.
    4. Use this button to scroll down through menu items.
    5. Use this button to go back to the previous menu.
    6. Not used.
    7. Use this button to exit a diagnostic test.
  3. Use the down arrow button to scroll to +3 Administration, and then press the OK button to select it.
    Figure : Access the administration menu
  4. Use the down arrow button to scroll to +E CP Diagnostics, and then press the OK button to select it.
    note:
    An administrator password might be required to continue.
    Figure : Access the diagnostics menu

Screen test

  1. Open the control-panel system diagnostic tests. See Open the control-panel system diagnostic tests.
  2. With 1 Screen Test highlighted, press the OK button to select it.
    Figure : Open the screen test
  3. The blue vertical gradient screen appears.
    Figure : Blue vertical gradient screen
  4. Touch the touchscreen to scroll though the remaining touchscreen test screens.
    note:
    Touch the Home button to exit the test.
    Green vertical gradient
    Red vertical gradient
    Blue horizontal gradient
    Green horizontal gradient
    Red horizontal gradient
    Blue with black horizontal interlaced
    Green with black horizontal interlaced
    Red with black horizontal interlaced
    Blue with black vertical interlaced
    Green with black vertical interlaced
    Red with black vertical interlaced
    Black with white center
    White with black center
    Checkerboard
    Multicolor stripes
    Blue green grid meshing

Touch test

  1. Open the control-panel system diagnostic tests. See Open the control-panel system diagnostic tests.
  2. Use the down arrow button to scroll to 2 Touch Test, and then press the OK button to select it.
    Figure : Open the touch test
  3. Use your finger to touch the white grid on the display.
    Figure : Touch the white grid
  4. A mark appears on the grid where it was touched.
    note:
    Touch the Home button to exit the test.
    Figure : Verify the mark

SoftKey test

  1. Open the control-panel system diagnostic tests. See Open the control-panel system diagnostic tests.
  2. Use the down arrow button to scroll to 3 SoftKey Test, and then press the OK button to select it.
    Figure : Open the softkey test
  3. When prompted, touch the Home button.
    Figure : Touch the Home button
  4. If the test is successful, the following screen appears on the display.
    note:
    Touch the screen to exit the test.
    Figure : Successful test

Backlight test

  1. Open the control-panel system diagnostic tests. See Open the control-panel system diagnostic tests.
  2. Use the down arrow button to scroll to 4 Backlight Test, and then press the OK button to select it.
    After selecting the 4 Backlight Test, the screen automatically dims, and then returns to full brightness.
    note:
    Touch any key to exit the test.
    Figure : Open the backlight test

Sound test

  1. Open the control-panel system diagnostic tests. See Open the control-panel system diagnostic tests.
  2. Use the down arrow button to scroll to 5 Sound Test, and then press the OK button to select it.
    After selecting the 5 Sound Test, the printer emits a series of audible tones.
    note:
    Touch any key to exit the test.
    Figure : Open the sound test

Keyboard test

note:
The control-panel system diagnostic tests include a 6 Keyboard Test item. For this printer, this test is not valid.
If the 6 Keyboard Test is opened, the printer power must be turned off to exit the test.
HP does not recommend turning the printer power off during the control-panel system diagnostic tests.
Do not open the keyboard test
Figure : Do not open the keyboard test

Version

  1. Open the control-panel system diagnostic tests. See Open the control-panel system diagnostic tests.
  2. Use the down arrow button to scroll to 7 Version, and then press the OK button to select it.
    note:
    Touch any key to exit the test.
    Select 7 Version to view the following types of information:
    • Panel ID
    • Hardware (version)
    • Firmware (version)
    • KB Hw (version)
    • KB Firm (version)
    • LCD Vendor
    • Touch Controller Version
    Figure : Open the sound test