Description
| Operating System | Link-OS |
| Resolution | 203 dpi/8 dots per mm 300 dpi/12 dots per mm (optional) |
| Memory | 512 MB Flash; 256 MB SDRAM |
| Maximum Print Width | ZD611: 2.2 in./56 mm for 203 dpi 2.13 in./54 mm for 300 dpi ZD621: 4.09 in./104 mm for 203 dpi 4.27 in./108 mm for 300 dpi |
| Maximum Print Speed |
8 in./203 mm per second (203 dpi) 6 in./152 mm per second (300 dpi) |
| Media Sensors | Full width, moveable reflective/black mark sensor; multi-position transmissive/gap sensor |
| Programming Languages | ZPL II; EPL 2; XML; ZBI; PDF Direct |










