hacking-printers.net/wiki/index.php/Port_9100_printing

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I m glad you liked it.

Can I have a question .. I'm using xamarin in Visual Studio windows version.. I got error using assembly : dependency above in the namespace and dependencyservice ? Can u make a tutorial?

@@chickenpoxtv3287 could you be more specific about the error you are encountering. Thanks.

@@MrNawshad this code is use to all POS printer brand?

@@chickenpoxtv3287 yeah. As long as the printer supports ESC/POS commands. Which majority of the printer providers support.

to show the use of dependency service. You could use the same code on the shared project and that would work the same way. Thanks

yes, as long as its connected to your local network.

for full cut send this command { 0x1d, 0x56, 0x00 }; // Full cut paper

@@MrNawshad How do I apply it after outputList.Add(0x1d); outputList.Add(0x56); outputList.Add(0x00);

@@MrNawshad Thanks, I was able to apply it, I was getting complicated, pSocket.Send(outputList.ToArray()); pSocket.Send(PrinterCommands.CUT_PAPER);

It is a bit difficult to suggest something without looking at your code.

@@MrNawshad public async Task Print(string deviceName, IList linesToPrint) { using (BluetoothAdapter bluetoothAdapter = BluetoothAdapter.DefaultAdapter) { BluetoothDevice device = (from bd in bluetoothAdapter?.BondedDevices where bd?.Name == deviceName select bd).FirstOrDefault(); try { using (BluetoothSocket bluetoothSocket = device?. CreateRfcommSocketToServiceRecord( UUID.FromString("00001101-0000-1000-8000-00805f9b34fb"))) { List outputList = new List(); foreach (string txt in linesToPrint) { // Convert the strings to list of bytes outputList.AddRange(System.Text.Encoding.UTF8.GetBytes(txt)); // Add ECS/POS Print and line feed command outputList.Add(0x0A); ; } bluetoothSocket?.Connect(); if (bluetoothSocket.IsConnected) { Thread.Sleep(200); try { bluetoothSocket.OutputStream.Write(outputList.ToArray()); } catch (Exception e) { } //bluetoothSocket.OutputStream.Position = 0; //System.Threading.Thread.Sleep(5000); bluetoothSocket.OutputStream.Flush(); bluetoothSocket.OutputStream.Close(); bluetoothSocket.OutputStream.Dispose(); // bluetoothSocket.OutputStream.Position =0; bluetoothSocket.Close(); bluetoothSocket.Dispose(); } } } catch (Exception exp) { throw exp; } } }

@@mraak324 use try catch finally for instance try { }catch { }finally{ bluetoothSocket.OutputStream.Flush(); bluetoothSocket.OutputStream.Close(); bluetoothSocket.OutputStream.Dispose(); // bluetoothSocket.OutputStream.Position =0; bluetoothSocket.Close(); bluetoothSocket.Dispose(); } see if this works. good luck. and let me know your result. thanks.

@@MrNawshad hi Issue has been resolved I have update my printer firmware now print is coming perfectly Thank for your quick support Can we print pdf using above code ?

Hi. Could you please tell me how you obtain a bluetoothsocket in IOS?. Thank you.

you need to connect to the device first, the printing commands are same for any devices. thanks.

@@MrNawshad my terminal have an incorated printer so when i try your code i have the message connection refused.

@@MrNawshad my android terminal has an incorporated printer but when i try your code by specifiying the ip adress and the port i get : connection refused, please what can i do ???

@@mestutosisptheophile8991 I guess your terminal printer does not have an associated ip address, the ip address you are targeting is for the terminal itself. I think you have to print to this printer through USB communication. if you look into the terminal's manual they usually proved with printer sample code. thanks.

@@MrNawshad i see the manual of the terminal it written android bluetooth terminal, when i activate bluetooth i see the printer name among connected devices, what can i do so ? thank you.

Didn’t get what you are asking for.

@@MrNawshad OK let me explain I want create PDF file of my listview data items like receipt.

And where would you like to save it?

@@MrNawshad I want to save it on my mobile device or send mail

Ok. I understand now. Can’t promise on doing a video on it anytime sooner. But will definitely do it once I have my current projects sorted first.

codemilltech.com/xamarin-forms-e-z-print/

@@MrNawshad I think this document is supported with older version of Xamarin. Can you please make a tutorial of how to print HTML Page with WebView.

if you do that this is really helpful for me because my whole project is stuck on it. I have tried a lot of things but useless.

implement the printer class on android and call the print method from the button event click handler.

Make sure you target the right IP address of your printer.

@@MrNawshad I connected the printer to my network. Got the ip printed out. Pinged the ip with my laptop to make sure. Than ran my app and tried to print.. Nothing comes out. Do I need certain drivers installed for this on my laptop or sth ?

You need to configure the printer on your network.

@@MrNawshad Do you have discord where I can ask you some questions during my troubleshooting ? I understand your response as going to my router page and look for the printer in the settins over there ?

In the mean time. I just went to the configuration page of the printer. Logged in, and made sure the settings were right. To sum it up. Network mode: infrastructure mode, 9100 Multi session (tried enable and disable) both don't make a difference for making it work.