Android Question bluetooth not see when use print.

[fifiddu70]

Hello everyone, I have a problem with my new printer model bluetooth : RPP200 - BWU , I can associate it with my smartphone galaxy s2 but when I try to print a command through my software developed for the management of commands pizzerias , this is not displayed from my smartphone , I'm trying to figure out where the problem but do not know what to do , can anyone help ? , for printing using the library message , used to work with my old custom s100 bluetooth printer , now with the new printer no longer .
This is the code I used before for printing

Dim Message As Email
    Message.To.Add(txtMail.text)
    Message.Attachments.Add(File.Combine(File.DirInternal, "TAVOLO" & "_" & txtapritavolo.Text & ".txt"))
    StartActivity(Message.GetIntent)