Pro tisk z webové aplikace můžete použít aplikaci:
V této aplikaci nalinkujte svou připojenou bluetooth tiskárnu. Můžete použít třeba cenově výhodnou Birch BMC02
Po nalinkování již můžete tisknout přímo ze svých stránek. Pro odkaz tisku použijte klasický a tag:
<a href="com.fidelier.printfromweb://$biguhw$Hello World$intro$$small$This is small letter$intro$->$intro$->$intro$->$intro$$intro$$intro$$intro$$cut$$intro$">Print Test from WEB </a>
Test: Print Test from WEB
ESC/POS URL-encoding
An ESC/POS printers get a stream of text embedding some „escape“ formatting code, following the ESC/POS „standard“ original defined by Epson. The problem is that ESC codes contains are also non printable chars. To URL-encode ESC/POS commands, Luis Blatta propose two solutions:
- DOLLAR_SIGN_ENCODING
ESC_POS_DATA is a string containing ESC/POS commands represented by $symbol$ specified by the following table:
$ Escape code Description $small$ small size $smallh$ small size with double hight $smallw$ small size with double width $smallhw$ small size with double hight and width $smallu$ small size underline $smalluh$ small size with double hight underline $smalluw$ small size with double width underline $smalluhw$ small size with double hight and width underline $big$ big size $bigh$ big size with double hight $bigw$ big size with double width $bighw$ big size with double hight and width $big$ big size, underline $bigh$ big size with double hight, underline $bigw$ big size with double width, underline $bighw$ big size with double hight and width, underline $cut$ cut the paper $drawer$ open the first drawer - DOT_ENCODING
This is a more versatile, complete solution for URL-encode any ESC/POS command: developer must represent each ‚non printable‘ char with a special encoding, enclosing the decimal representation of the code with special sign
▪(%C2%B7 URL-encoded), so by example- the char with decimal value 27 become ▪27▪,
- and ESC/POS escape sequence to cut the paper ‚ESC m‘, is equal to 1B6D in hexadecimal and is equal to 27 109 in decimal, become:
▪27▪▪109▪ - at least the complete string to cut the paper is:
▪27▪▪109▪▪13▪▪10▪
Print from your Android App (interactive user action)
Create your ESC data using the helpers Create an Android Intent using Add your ESC data as a “Data” extra Start the intent. You can be printing in minutes with just a couple lines of code. It’s as simple as creating your intent, adding your ESC formatted string and start the (service) intent.
Example:
String dataToPrint="$big$This is a printer test$intro$posprinterdriver.com$intro$$intro$$cut$$intro$";
Intent intentPrint = new Intent();
intentPrint.setAction(Intent.ACTION_SEND);
intentPrint.putExtra(Intent.EXTRA_TEXT, dataToPrint);
intentPrint.setType("text/plain");
this.startActivity(intentPrint);
Examples
Let consider an interesting example: you want to print this receipt of an ecommerce order:
ORDINE 20
del 10-10-2015 alle ore 10:00
pizzeria d'albertis (cod. 663)
1 pizze
01 x capresina 6.50
2 bibite
01 x coca cola 1.50
01 x mezza gassata 0.50
-------------------------------------
confezionamento per asporto 0.50
fattorino a domicilio 1.00
totale euro 10.00
-------------------------------------
consegna a domicilio
10-10-2015 alle ore 13:30
Caterina de Michel
salita san giorgio 6/9
16100 genova
tel. 1234567901
using the mode A encoding, to print the above text with a final paper cut also:
$ curl -X POST http://www.posprinterdriver.com/api/v1/api/sendDataToPrinter? \
linkcode=12345&data=\
ORDINE 20\
del 10-10-2015 alle ore 10:00\
pizzeria d'albertis (cod. 663)\
\
1 pizze\
01 x capresina 6.50\
\
2 bibite\
01 x coca cola 1.50\
01 x mezza gassata 0.50\
-------------------------------------\
confezionamento per asporto 0.50\
fattorino a domicilio 1.00\
totale euro 10.00\
-------------------------------------\
\
consegna a domicilio\
10-10-2015 alle ore 13:30\
\
Caterina de Michel\
salita san giorgio 6/9\
16100 genova\
tel. 1234567901\
\
\$intro$