[cups.development] Printer with front and back heads

[Michael Sweet]

Yuri,

For a printer like this you'll need to do a custom printer driver that buffers whole pages, sending front and back images in parallel.  A simple implementation could have an in-memory buffer for the front side image and then stream front and back as you read the back side image.

You'll find information about writing CUPS raster drivers here:

	http://www.cups.org/documentation.php/raster-driver.html


On Mar 2, 2012, at 9:45 AM, Yuri Albuquerque wrote:

> Sorry for the silly question again, but I couldn't manage to do this by myself.
> 
> I have a printer with a front and back head, which means it prints on both sides of paper. I want one of the pages to be printed on the front, while the other is printed on the back of the paper.
> 
> But the buffer of the printer only has 4K. So, when I send the commands by page, it prints a whole page before it starts the other page.
> 
> Is there a way to print a line from one page and then a line from the second page? I tried to do that with simple commands, and the filter always failed.
> 
> Thanks for the help.
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_________________________________________________________
Michael Sweet, Senior Printing System Engineer, PWG Chair