Hello, please operate as follows:
Press the 【OK】 key to enter the menu options, select 4 for Cleaning, and press the 【OK】 key. The printer will print a cleaning effectiveness chart. Use this chart to perform the necessary maintenance.
If you wish to cancel the cleaning process at any time, please press the 【Back】 key.
You can check if the cleaning was successful by printing a test pattern. If you are not satisfied with the results, you can perform a second cleaning.