I've changed hundreds of printheads.... but also am a certified printer technican. A versacamm uses 2 epson dx4 printheads.... without proper percuation you could damage the new head, burn up the carriage board or mainboard. BTW if and when you get it in can you do mechanical alignments for the bias and x,y axis? saying that i know end users who can change heads but thats after proper training and experience.