Description: When the machine has encountered the Toner Empty.
Remedy: Replace with a new Toner Cartridge.
Code: 20
Display: TONER LOW
Description: Toner is almost empty. Toner may be low Toner may be unevenly distributed.
Remedy: Take out the toner cartridge and gently shake it. By doing this printing operations can be temporarily resumed.
Code: 21
Display: Function Impossible
Description: Means that these modes do not work together or are not supported in your current machine configuration.
Remedy: In case of copying, try again without function combination .For Scan-To-Email, please check secured connection of the DIMM and QWERTY keyboard
Code: 22
Display: DIMM not installed
Description: If the MODEM chip is installed on the main PBA for SCX-6520FN but the DIMM for Fax memory is not installed then this message appears on the LCD.
Remedy: Check the DIMM in the expansion memory slot. * Please test the RAM testing in engine test mode. * If the problem is in the DIMM, replace the DIMM.
Code: 23
Display: NETWORK IP Conflict
Description: Your MFP has been given the same IP address as anther device on your network.
Remedy: Correct the network settings.
Code: 24
Display: No Paper
Description: The paper in the paper Tray has run out.