[Lazarus] Strange behaviour sending data to a serial port.

[Felipe Monteiro de Carvalho]

The only thing I know is that the code here worked for me:

http://wiki.lazarus.freepascal.org/Hardware_Access#Serial_Communication

> However, if I put a breakpoint into the code and step through it, the
> printer prints as expected.

Maybe the printer needs some time to rest somewhere. Put some Sleep's

-- 
Felipe Monteiro de Carvalho