No, I think the double CMYK is the best configuration personally. Mine is configured white and metallic which slows it down for banners etc.Are there other variants you think better
How does it do the job better? Its the same software, the same ink and the same print head. The only difference is there is no servo in the movement hence why it is slower.dose the job better
LOGO, I think you need to see both in action, I have three Rolands, a VS300 and SP540 and a BN20. The BN20 gets used the least because it is the slowest. The majority of the work pushed through these machines are stickers, all about the size of a wrist watch strap the BN20 simply can not keep up so is now used as a sampling machine. Also, the wastage comment I do not understand as you can still use smaller width material in a larger machine so whatever size material you use in a BN20 will fit in a 640.
If I had to make a decision it would be based as follows:
BN20. If I am only intending to print garments and a few stickers then I would get this machine. It's a cute little machine which will sit in the corner and happily print away. I would consider getting one with white ink so I could print window car decals though
640. If I want to print garments and stickers and consider breaking into banners, roll up stands and other items I would get this machine. Space is a big consideration when thinking about this machine as the media rolls are huge as is the space required to make things like banners. But this is an industrial machine and wants to print hundreds of meters a week, if a BN20 will pay for itself in matter of months so will this machine as this can do more than the BN20
P.S. if you are going for a BN20 let me know as I might be interested in the VS :-)