BasePrinter Dispose() method block printing

[emanuhell]

BasePrinter Dispose() method block printing. For example:

printer.Write(e.Initialize());
printer.Write(e.Enable());
printer.Write(Tests.Receipt(e));
printer.Dispose();

prints nothing!
I need the Dispose method to release the connection to the printer after each print, to allow other running applications to use the same printer.
Thanks.

[lukevp]

Which printer are you using? Some of the implementations are asynchronous (Writes are buffered and flushed by a task). This is to increase the performance of many small writes. You may just be disposing the connection before the flush happens. We should probably expose a way to await the print queue being empty.

[emanuhell]

Which printer are you using?
I'm using the SerialPrinter.

We should probably expose a way to await the print queue being empty.
What method are you talking about? I can't find it.

Thanks.