1.I just replaced the toner cartridge and the LCD continues to display the message "Toner Low" / "Replace Toner" / "Toner Ended" or the Toner LED is still on or flashing.

2.I updated my Windows 11 PC through Windows Update and I can no longer Print, Scan or Fax from my PC.

3.I installed the Full Driver & Software Package, but some applications were not installed. (For Windows 10)

4.Curled (video instructions available)

5.The scanned data is attached to an E-mail application which I do not use regularly, or the error message indicating no default E-mail application is registered on my computer (CC4-121-[error code]) when trying to scan a document directly into my E-mail application using ControlCenter4 or the SCAN key on my Brother machine.