I want to print from iOS app to thermal printer (connected to a network) that use ESC/POS command.
I have already a framework that translate a text to ESC/POS command but I don’t know how to send it to the printer.
I think that the steps are:
connection to printer
send code to printer
close connection to printer when job is done.
Somebody can help me?
Related
I am developing a Flutter app, and I’ve been trying to print via usb in a thermal printer. I have found a lot of libraries/package for bluetooth thermal printers, but I need my program ALSO works via USB.
I only have found one package that allows me to print in almost any printer, the name of the package is “printing”, but this works whit PDF’s, and the thermal printer doesn’t allow print PDF’s.
Note: The app I am developing is for Windows.
Does someone know some package or method I can try to achieve my goal?
Thanks in advance for any help.
I would add a comment but I don't yet have enough reputation. However, I have faced a similar issue recently attempting to print to a thermal receipt printer that is USB.
The only solution I found was to create a flutter plugin with native windows code and use https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/winspool/. There is the win 32 package that could do the same thing https://pub.dev/packages/win32.
Hopefully someone else may have a better solution, but that is something to look into.
Try looking into quick_usb to connect to the printer via usb
I am trying to print receipts for POS printer that is not accessible with Wifi nor Bluetooth. It can only be connected with USB or network cable (now, connecting with Ethernet). I found examples to print POS printer are connecting with IP address. There are more than one printer connected to the server. How can I make Flutter app to print receipt to specific printer that is Ethernet connected server?
I can print simple receipts using the esc_pos_printer plugin, but only simple text works for me. I can't change font size, make columns etc...
https://pub.dev/packages/esc_pos_printer
You have to specify your local printer ip and use PORT 9100. The printer IP is 192.168.0.'something'.
I used another app from App Store called Retail POS to connect my printer via Ethernet and see the IP.
Hope this helps somewhat.
If you find a solution where you can print more than just simple lines of text let me know!
I have a thermal printer that needs to be connected into my Android device via WiFi connection. I need it to be automatically print whenever a button is triggered (without the printing dialog)
Currently, I am using Ionic 4, but I cannot find any library which supports ESC/POS language. Any library that I could use?
Note:
The following solution works for Ionic 4 and 5.
I managed to find the solution via TCP/IP port connection from ionic into my WiFi connected thermal printer
In order to create a TCP/IP socket connection from ionic, I used sockets for cordova and send byte into my thermal printer IP. Depending on each printer, each printer has different set of ESC command (CMIIW) which mean we still need to convert the byte code one by one and send them into the thermal printer.
Also, I have fork a repository https://www.npmjs.com/package/esc-pos-encoder-ionic which can be used as a wrapper to encode ESC command into byte code. Then the result can be sent into the printer using TCP/IP socket.
Hope this helps others too.
Demo source code: https://github.com/Ans0n-Ti0/esc-pos-encoder-ionic-demo
I want to Know whether I can print a file through AIRPrint Printers only.
OR
I can print through a normal Printer connected to a Machine which can be connected through WIFI.
Thank you.
There's no built in API to print to anything other than an AirPrint printer.
If you put in all the hard work of writing your own printer drivers (or porting someone else's), you could presumably print to a normal printer, but it ain't going to be simple.
I write an native application for an iOS devices(iPhone and iPad) and want to print to Receipt Printer Epson TM-T88. I can not find any information on how to write a driver for Receipt Printer on iOS devices. Pleas can some one help me out or point out where even to start, thank you all.
Epson provides SDKs for iOS, which should be sufficient in connecting to their printers.
http://pos.epson.com/mobilesdks/index.htm
I don't believe the T88 is supported unless you have the Ethernet module to give the printer a TCP/IP connection as I believe that is the only way to print through iOS.
The target printer needs to be "AirPrint" capable. Currently, only a handful of HP printers are capable. I recommend you looking into solutions similar to Printopia.
I need to do this too but this is all I can find on StackOveflow:
Printing to Epson TM-T88V receipt printer from iOS/iPad using CUPS or other framework
Why can I not receive a response from a TCP/IP capable printer?
printing from ipad to receipt printer(Epson TM-T88v) thr wifi
The 3rd post mentions signing up with Epson Expert to gain access to technical docs etc. The TM-T88 Technical Reference Guide states:
With ESC/POS commands, you can
directly control all the TM printer functions, but detailed knowledge of printer specifications or
combination of commands is required, compared to using a driver.
To use ESC/POS commands, you need to agree to a nondisclosure contract first and obtain the
ESC/POS Application Programming Guide. Ask your dealer for details.
It also says this about the TM-T88V Mac Printer Driver:
Mac printer driver allows you to control the TM-T88V using Common
UNIX Printing System (CUPS) on Mac OS X.
This MacWorld forum post contains a lot of information about IOS printing via CUPS:
http://hints.macworld.com/article.php?story=20101027080807322