Answer: It is different in features between offset and flexo printings, and it is also different in graphic pattern designs. In order to change offset printing into flexo printing, besides the four basic colors, normally, one or two special colors shall be prepared, therefore, most users will have 6 color printing units, and there will be 7 color printing units if a varnishing function unit added (unit structure same as the printer). Although there is no color number limit in servo transmission, under normal situation, it will meet the demand if users have the 6+1 configuration, and at present the 8 color units are the max color number configuration.
