Setting the paper size in Delphi for a endless label: Brother Printer QL 550

In Delphi I can set the paper size of a label Printer (see code below). But I can't set the paper size in the Brother QL 550 when the Label is endless.

So if I have labels 38mm x 90mm the procedure works well. When I have a endless label I get a error from the Brother Printing Driver saying the the label is endless and not compatible.

    Printer.GetPrinter(Device, Driver, Port, DeviceMode);
    OpenPrinter(Device, hPrinter, nil);
      DevMode := PDevMode(GlobalLock(DeviceMode));
        with DevMode^ do
          dmFields := dmFields or DM_PAPERSIZE;
          dmPaperSize := DMPAPER_USER;
          dmFields := dmFields or DM_PAPERWIDTH;
          dmPaperWidth := 380; //  39 mm : in 1/ 10 mm;
          dmFields := dmFields or DM_PAPERLENGTH;
          dmPaperLength := 900; // 90 mm : in 1/ 10 mm
          ResetDC(Printer.Handle, DevMode^);
Who is Participating?
Eddie ShipmanConnect With a Mentor All-around developerCommented:
Well, I couldn't find anyway to do it programatically. I would suggest either
downloading the SDK I mentioned earlier and using the COMObject to print
or contacting their support group to ask them how to do it using Windows API calls.
Eddie ShipmanAll-around developerCommented:
From what I can see, you set the size in the Printer Options dialog NOT the Print Job Options.
There seems to be a separate setup called Label Format definiiton that you must perform
using the Printer Setup. I'm not sure if the Printer devMode fields will hold that info. It is
more than likely stored in the registry.

What I'd do, if I had one of these printers, is fill the label format definition and then show the
DevMode values for the printer in a test program. Then you shoul dbe able to use the same
values when you want to set them. I'd also check the registry for that info.

Last resort, I'd contact Borther's Support group to see if they have any info. I could not gather
how to do it from the available downloadable docs.
Eddie ShipmanAll-around developerCommented:
Also, if you get the p-SDK, you can use the COMObject to do the printing and not have
to worry about this as you would create a label template to set the dimensions.
The 14th Annual Expert Award Winners

The results are in! Meet the top members of our 2017 Expert Awards. Congratulations to all who qualified!

vonburgAuthor Commented:
If I do not set the size in the Printer Option, I get only a error message.
With all fixed sized Labels, setting the Printer Option works fine!  Same with Dymo LabelWriter 400.

It's not practicable to set the size of a label in the Printer Setup. And there is no setup for that in the Brother Tools.

Eddie ShipmanAll-around developerCommented:
The documents say that there is a paper size setup in the Printer Options screen.
vonburgAuthor Commented:
No I get a screen with the actual size and with the selected size - only two buttons for abort and restart (if the labels where changed)

I don't like to setup any size in a Printer Option screen. It has to be made under program controll (Delphi)

Once again fixed label size work without any Printer Option screen!
Forced accept.

EE Admin
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.