you can paste this Access generated code (with small modifications - just added more reports) on the OnCLick event of the button you're using to print the reports.
Just replace the "Report 1 Name" (and 2 and 3) with your reports names and replace the "Button_Name_Here" with the name of the button.
On Error GoTo Err_Button_Name_Here_Click
Dim stDocName As String
stDocName = "Report 1 Name"
DoCmd.OpenReport stDocName, acNormal
stDocName = "Report 2 Name"
DoCmd.OpenReport stDocName, acNormal
stDocName = "Report 3 Name"
DoCmd.OpenReport stDocName, acNormal
Exit_Button_Name_Here_Click:
Exit Sub
Err_Button_Name_Here_Click:
MsgBox Err.Description
Resume Exit_Button_Name_Here_Click