Re: lag while printing and serial redirect

Frank Cox
2016-12-13T17:04:36Z

On Tue, 13 Dec 2016 14:26:34 +0100
Jakub Klawiter wrote:

> $ echo test | lpr -l
> the printer starts to print immediately.
>
> But from dosemu if i'll try:
>
> C:>echo test > lpt1:
>
> it's working but there is 3-4 seconds lag before it starts to print.
> Where can i look to fix it?

That's the way that lpr works under dosemu. It's my understanding that the objective is to print a whole page at a time because that's how modern printers work. Since most dos programs don't send a page end/page break, dosemu just waits for a few seconds to see if anything more is coming; if not the page is assumed complete and send it to the printer.

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