On 1 Apr 2009, at 04:25, Joseph wrote:
On 03/31/09 19:40, Grant wrote:
I have a Brother QL-570 label printer printing on 29x90mm labels.  My
goal is to have 6 characters printed across the center of the label.
It prints like this:

$ echo 123456 | lpr

but the text is in the upper corner of the label, it has the wrong
orientation, and the font is too small.

It also prints like this:

$ lpr test.png

but the text doesn't come out very crisp, and I'd rather not create a
file with imagemagick for each label to print.  Is there another way
to print large, properly oriented text on the fly?

With some printers it's possible to add control codes to the text you're printing to do stuff like this.

EG:
http://www.sturec.com/help/printing/printers.htm
http://printers.necsam.com/public/printers/pclcodes/pcl5hp.htm

But it depends whether your printer driver supports them, and I very much doubt any of the above will work for you. In some printers that sort of stuff is implemented in hardware (firmware), but yours appears to be a winprinter. I would look at the .ppd files first, to try & see if the author has implemented anything like this.

I really understand where you're coming from not wanting to mess with imagemagick, but at the end of the day *something* has to raster the ASCII into little pixels, so it's not really that dirty & shameful if you have to write a little wrapper script to do so. On my trusty olde HP LaserJet 4000 it may be the onboard hardware PostScriptâ„¢ which converts the text into character shapes, but your little printer doesn't have so much processing power, so the computer has to do the rendering for it.

Thus a wrapper script that calls imagemagick and converts $1 into an image file may merely be considered a "userspace driver". If you make the image larger, is this reflected on the printer's output, or does it perhaps get sharper? Is it possible to change the DPI of imagemagick's output? If you run lpr on images of other formats, do they print? You may find a different file format might be sharper, or you might find that postscript files work (handled by CUP's built-in software renderer) and that you can use Ghostscript or something to manipulate the output.

I assume you've read all of this guy's pages:
http://etc.nkadesign.com/Printers/QL550LabelPrinterPerl
http://etc.nkadesign.com/Printers/QL550LabelPrinter

It is not very well supported under Linux:
http://openprinting.org/show_printer.cgi?recnum=Brother-QL-570

Have you found these pages useful in the past? My experience is that hardly anyone ever bothers to update such pages. :(

I'm not saying it's exactly a wonderprinter, famed in fable & song, but the only thing I find helpful on there is the link to a page which links to the etc.nkadesign.com pages. From the looks of those one should be able be able to do something fairly useful with this printer, depending upon one's mad skillz.

Stroller.


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