labels on matrix printer

rbuser

Hello,

I want to print labels on EPSON LQ 1050 matrix printer.
Problem is that I want to print labels one by one...
When I was a young programer (a long time before Windows), I didn't work
with Pascal but... I assigned LPT1 and then wrote 3 lines of text, and then
2 CR and it as OK, my label was printed.
I would like to do exactly the same today, just using drivers if possible...
but I can't manage to do that with RB. RB sends a FF at end of each report
and LQ 1050 does not accept a 5 cm page height...

Could anyone help me please ?

Thanks !

digitalmetaphors

You need to print the report to a text file and then print that file to the
dot matrix printer. Here is some good info in this topic:


-----------------------------------------------
Article: Printing to Dot Matrix Printers
-----------------------------------------------

Dot matrix printers are natively line and character based. Most dot matrix
printers can emulate graphical (i.e. pixel based) printing, but there is
additional overhead which degrades printing speed.

Some options for maximizing performance:

1. Use native printer fonts.

Each dot matrix printer normally has some built-in fonts. You can choose
these fonts when using the ReportBuilder Report Designer. Choose File |
PageSetup and select the dot matrix printer (or optionally use the object
inspector to set Report.Printersetup.PrinterName). The fonts displayed in
Report Designer's font drop down list located on the format toolbar will
display the printer native fonts (indicated by a special printer icon next
to the font name).

2. Vertically position and size objects in 1/6 inch increments.

A standard dot matrix printer can print 66 lines per 11 inch portrait page.
This translates to a line height of 1/6 inch. Therefore the height of each
band should be a multiple of 1/6 as should the size of the margins, the
vertical position of each object etc.

3. Keep the layout simple, avoid using graphics of any kind.

Alternatives to using the dot matrix printer driver:

1. Use the generic text printer driver.

When using the generic text printer you will need to use the courier or
courier new font and apply the layout techniques described above.

2. Use ReportBuilder's ReportTextFile device output format.

This ReportTextFile device can exports the report to a .txt file which you
can then send to the printer. Demo dm0107.pas in the main reports demo app
shows an example of printing a report to a .txt file and previewing the
results.

--
Tech Support mailto:support@digital-metaphors.com
Digital Metaphors http://www.digital-metaphors.com




-----------------------------------------------
Tech Tip: Send TextFile to Printer
-----------------------------------------------

I designed a application that exports the report to a .txt
file using ReportTextFile device.

How can I Send the text file to the printer?

The following procedure will send the .txt file to
the printer using Delphi's TPrinter object.



uses
Printers;


procedure SendTextFileToPrinter(aFileName: String);
var
lsLines: TStringList;
lOutputFile: TextFile;
liIndex: Integer;
begin

lsLines := TStringList.Create;

try
lsLines.LoadFromFile(aFileName);

AssignPrn(lOutputFile);
Rewrite(lOutputFile);

for liIndex := 0 to lsLines.Count-1 do
Writeln(lOutputFile, lsLines[liIndex]);

CloseFile(lOutputFile);

finally
lsLines.Free;
end;


end;




--
Tech Support mailto:support@digital-metaphors.com
Digital Metaphors http://www.digital-metaphors.com




Cheers,

Jim Bennett
Digital Metaphors