I will try to help here 
Ok there is a ton of info on this forum covering pretreatment. One thread that I think might help is this one http://www.t-shirtforums.com/direct-garment-dtg-inkjet-printing/t52278.html, it goes into pretty good detail of pretreatment, so hopefully this will help some.
As far as the white ink layer, it sounds like you need to print at a higher density. There should be a section on either your advanced printer settings when going to print that you can adjust to either medium or a higher dpi. There are also settings in the rip program which you can adjust for a higher dpi on your layers too. The section should be called something like ink and printer configuration in your rip program. Sorry I have a HM1 so use a different rip program, but they all should have the same basic settings. Let me know if this helps.
Ok there is a ton of info on this forum covering pretreatment. One thread that I think might help is this one http://www.t-shirtforums.com/direct-garment-dtg-inkjet-printing/t52278.html, it goes into pretty good detail of pretreatment, so hopefully this will help some.As far as the white ink layer, it sounds like you need to print at a higher density. There should be a section on either your advanced printer settings when going to print that you can adjust to either medium or a higher dpi. There are also settings in the rip program which you can adjust for a higher dpi on your layers too. The section should be called something like ink and printer configuration in your rip program. Sorry I have a HM1 so use a different rip program, but they all should have the same basic settings. Let me know if this helps.
