I can't print images

[santosbj]

Hi, i have a problem printing images,

Even, after reducing quality, the result is the same.

This is my code.

Any idea?...

Thanks for your help.

[Abubakarshaikh]

What is the Bluetooth Version of your thermal printer device?

[santosbj]

Hi, the problem is not Bluetooth device, it's sdk!.
When use:
sdk: '>=2.12.0 <3.0.0'
Everything works great, but, when use:

sdk: '>=2.19.3 <3.0.0'

It happens.

[santosbj]

By now, I got solution, using a fork of your project:

https://pub.dev/packages/flutter_esc_pos_utils

[islamroshan]

Hello Everyone!

I am also struggling for couple of days to fix this issue and after losing 2-3 printer rolls I still wasn't able to fix it.

if someone had a solution, please share.
thanks

[Abubakarshaikh]

Your printer should have Bluetooth 4.0 or support BLE.

[islamroshan]

The issue was resolved for me by downgrading the esc_pos_utils_plus package version to 2.0.1+6 in my pubspec.ymal file.

[AhmedTawfiqM]

@santosbj
i use 2 packages to print an image
flutter_esc_pos_utils: ^1.0.0
flutter_blue_plus: ^1.30.3

but problem is still that is decoded in Papers
please tell me about how u solved the problem ?
my email: [email protected]
linkedin:
https://www.linkedin.com/in/ahmed-tawfiiq/

[Cannon99]

I solved this using https://pub.dev/packages/flutter_esc_pos_utils_v2.

[iOSyan]

@santosbj i use 2 packages to print an image flutter_esc_pos_utils: ^1.0.0 flutter_blue_plus: ^1.30.3

but problem is still that is decoded in Papers please tell me about how u solved the problem ? my email: [email protected] linkedin: https://www.linkedin.com/in/ahmed-tawfiiq/

Hello, have you solved this problem now? I also use 2 packages to print an image
flutter_esc_pos_utils
flutter_blue_plus
Pictures can be printed, but printing is very slow and too laggy.
May I ask if there is a new solution? be deeply grateful!

[santosbj]

Hi,

I'm using:
flutter_esc_pos_utils: ^1.0.0
print_bluetooth_thermal: ^1.1.1
` ...

final imageBytes =
    base64.decode(logoData.replaceAll("data:image/png;base64,", "").trim());

var image = decodeImage(imageBytes);
var bytes = generator.image(image!, align: PosAlign.center);

bytes += generator.reset();

...
`

That's working for me.