Field help (IMPRIMEBLA) 

This field is used to enter the code of the report than can be used for the balance printing. There are various print types: preview (PREVISU) submitting an overview of the balance before printing, the editing in a pdf (PDF) file, the inserting of the report in a message and the printing directly on your printer.
SEEINFO If the field is not entered, the PREVISU screen code is used by default.