These printers use the T068320 cartridge:

Epson Stylus C-120

Epson Stylus CX-5000

Epson Stylus CX-6000

Epson Stylus CX-7000 F

Epson Stylus CX-8400

Epson Stylus CX-9400 F

Epson Stylus CX-9475 Fax

Epson WorkForce 30

Epson WorkForce 40

Epson WorkForce 310

Epson WorkForce 500

Epson WorkForce 600

Epson WorkForce 610

Epson WorkForce 1100 WideFormat