Yep! chr(14)+"My text" prints "My text" on wide fonts...
I'm asking to epson too, so, when i have the solution i'll give it to you..
The lx-300 and lx-300+ doesn´t have any DIP switches, the setting is made with a combination of the printer's buttons and it's really a PITA...

>I can't test, we no longer have any Epson, but we have the printer book. I looked in the book again, and the double-hight mode escape sequence chr(27)+chr(119), has an extra parameter "1" or "0" to turn on/off.
>Does any escape sequences, like chr(14), work? It's a long time since I last used these things, but there are also escape sequences to initialize the printer mode, and DIP switches on the printer that had to do with graphics, too bad I can't just give you the book...
>
>>Sorry, it didn´t work..... is it working for you?
>>
>>>Yes, try to turn double hight on with chr(119) before sending the double height code.
>>>
>>>
>>>>Hi.
>>>>Sorry it didn't work, I tryed:
>>>>@ 01,01 say chr(91)+"Mytext"
>>>>The result was: "[Mytext"
>>>>That's because chr(91)='['
>>>>
>>>>Then I tryed:
>>>>@ 01,01 say chr(27)+chr(91)+"Mytext"
>>>>The result was: "Mytext" with normal (draft) font..
>>>>
>>>>Any other idea??
>>>>
>>>>
>>>>>Try:
>>>>>chr(91) - double hight
>>>>>chr(119) - turn double hight on/off
>>>>>
>>>>>
>>>>>>Can someone tell me which one is (or where can I find) the escape sequence for setting the DOUBLE HIGH FONT for dor matrix printers? for example:
>>>>>>
>>>>>>chr(14)=Expanded (wide font)
>>>>>>chr(15)=Condensed
>>>>>>chr(18)=normal (draft font)
>>>>>>
>>>>>>I need to print several tickets in a dot matrix printer (LX-300) and I would like to use double-height and wide fonts..
>>>>>>
>>>>>>Thanks in advance.