handheld small character inkjet markerSpecification 1. 4-in-1 sandwich design (controller, screen, printhead and cartridge) 2. Complete stand-alone, no PC required 3. Hot-swap: Circuit safeguard for quick cartridge changeover 4. Dual Switchable Nozzle Design (DSND) allows you to switch nozzles when necessary 5. Dust cover design 6. ...