do you use vb code to print?
did you assign the DATA field name on the tag template?
(here it is FIELD1)
the data is in access form field: me.txtBox1
Code:
dim btFormat, btApp
Set btApp = New BarTender.Application
Set btFormat = New BarTender.Format
Set btFormat = btApp.Formats.Open(CurrentTagPath, True, "")
'set the field name
btFormat.SetNamedSubStringValue "Field1", me.txtBox1
'print lbl
btFormat.PrintOut False, False
btFormat.Close (BarTender.BtSaveOptions.btDoNotSaveChanges)
btApp.Quit
Set btApp = Nothing