These printers use the 24B6020 cartridge:

Lexmark XM 7155

Lexmark XM 7155 X

Lexmark XM7155 MFP

Lexmark XM7155X MFP

Lexmark XM 7163

Lexmark XM 7163 X

Lexmark XM7163 MFP

Lexmark XM7163X MFP

Lexmark XM 7170

Lexmark XM 7170 X

Lexmark XM7170 MFP

Lexmark XM7170X MFP

Lexmark XM 7263