These printers use the S050187 cartridge:

Epson Aculaser C-1100

Epson Aculaser C-1100 D

Epson Aculaser C-1100 DN

Epson Aculaser C-1100 N

Epson Aculaser CX-11 N

Epson Aculaser CX-11 NF

Epson Aculaser CX-11 NFC