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I print using this method :

PrintDocument tmpDoc = new PrintDocument();
tmpDoc.PrintPage += new PrintPageEventHandler(toPrinter);
PrintPreviewDialog tmpDiag = new PrintPreviewDialog();
tmpDiag.Document = tmpDoc;
tmpDiag.WindowState = FormWindowState.Maximized;
tmpDiag.PrintPreviewControl.Zoom = 1;

But print slow, I print Text and Barcode.
What can I do to print faster like other POS.

Thank you.
Updated 16-Aug-10 16:14pm

I once used a thermal printer and it had two speeds, configured by dip-switch on the back of the unit: slow and not-so-slow.

The faster version was less resolution, kind of draft quality, which should be fine for most applications.

The newer printers are much faster, so if you're comparing something that's a decade old to ones you see that have been installed in the last few years, you can only make it faster by replacing it.

1. See if you can avoid the print preview dialog. If you don't absolutely need it, you can save time by skipping that.

2. This is the one [non-hardware] thing that will probably make a big difference. Go to Control Panel/Printers, right-click your POS printer, select Properties, then the advanced tab and then check "Print directly to the printer". This bypasses the Windows Print Spooling subsystem, and can make a HUGE difference to the overall print time. In particular, if the printer seems to "wait" before printing, then prints at a reasonable speed, that's it.

btw, various bits of software I have written are currently printing over a million thermal tickets a year, so I do have some experience in this area! :-D
Peter I did what you said but it didn't get faster.
I'm trying Send raw data to the printer. It's really fast.
But how send barcode?

Thank y.
Read the manual for your printer. (If you haven't got a paper one there, I'm sure it's available online.) There will be some character sequence that says "take the next few characters and print them as a barcode in some particular style and size". Just put these in your raw data. Be prepared to experiment - it can take quite some time to get it right!

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