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Lexmark CX725

Lexmark CX725

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Auto alignment service check

    Pre‑check procedure

  1. Open and close the toner door a few times to clean the sensor (TPS) lenses.

  2. Enter the Diagnostics menu, and then navigate to:

    Printer diagnostics & adjustments > Color alignment adjust

  3. On the AA adjustment row, touch Start.

    Note:  This triggers the auto align routine which performs the color alignment error corrections (0.42 mm, 0.84 mm, and 3 mm range).

    Note:  If the AA adjustment is successful, an AA adjustment passed message appears on the screen. If an AA adjustment passed message does not appear, skip the next pre-check step, and then go directly to step 3 in the service check.

  4. Enter the Diagnostics menu, and then navigate to:

    Printer setup > EP setup > Toner patch sensor adjust > Full calibration

    Note:  This triggers the auto align routine (0.42 mm range only).

ActionYesNo

Step 1

  1. From the home screen, touch Settings > Reports > Print Quality Pages.

  2. On the CalSet section of the test page, check the color alignment stat value.

Is the value 0?

Go to step 2.

The problem is solved.

Step 2

  1. Perform the blank or white pages service check or missing color service check. See Blank or white pages check or Missing color check.

  2. Enter the Diagnostics menu, and then navigate to:

    Printer setup > EP setup > Toner patch sensor adjust

  3. On the sensor gain characterization row, touch Start.

  4. On the sensor gain verification row, touch Start.

  5. Check the graph in the printout.

    This sample graph shows good values:

    Note:  The normal range of the sensor voltage is 1.5–2.0 volts.

Does the graph show good values?

The problem is solved.

Go to step 3.

Step 3

  1. Remove the imaging kit.

  2. Move the TPS wiper mechanism lever up and down.

Does the wiper mechanism properly move?

Go to step 5.

Go to step 4.

Step 4

Check the TPS sled and TPS wiper mechanism for proper installation.

Are the TPS sled and TPS wiper mechanism properly installed?

Go to step 6.

Go to step 5.

Step 5

Reinstall, repair, or replace the TPS sled and TPS wiper mechanism. See TPS sled removal and TPS wiper mechanism removal.

Does the problem remain?

Go to step 6.

The problem is solved.

Step 6

Check the cables on the sensor (auto alignment) and on the JTPSAA1 connector on the controller board for proper connection, and reseat if necessary.

Does the problem remain?

Go to step 7.

The problem is solved.

Step 7

  1. Replace the sensor (TPS). See Sensor (TPS) removal.

  2. Enter the Diagnostics menu, and then navigate to:

    Printer setup > EP setup > Toner patch sensor adjust

  3. On the sensor gain characterization row, touch Start.

  4. On the sensor gain verification row, touch Start.

  5. Check the graph in the printout.

    This sample graph shows good values:

    Note:  The normal range of the sensor voltage is 1.5–2.0 volts.

Does the graph show good values?

The problem is solved.

Contact the next level of support.
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