Print Bitmap is so blurry

dkelemina · August 9, 2019, 8:16am

Hi Team,
I’m working on Poynt Smart Payment Terminal with internal printer. However, I have a problem with printer quality.

I tried to print my print job as a bitmap, but it is very blurry. I’m using this code.

And this is my result, so do you have some ideas about this issue?

deepak · August 12, 2019, 10:37pm

Did you try using the printer paper that came with the device?

dkelemina · August 13, 2019, 1:27am

Hi Deepak,

No I don’t have printer paper that came with device, I used other paper that is good with other terminal like A920 (pax) but it is not good with Poynt.

deepak · October 16, 2019, 5:52pm

Hi,
The paper specifications can be different for each printer so could you please try with the printer paper that comes with the printer, so we can isolate the issue.

dkelemina · October 21, 2019, 3:26pm

Hi,

Yes we try with printer papers which came with units and results is the same.

Maybe we need to upgrade printer SDK or something like that as also printing speed is not OK.

We are using high quality papers which works fine on PAX A920,A930, NEXGO N5 all Verifone terminals and Ingencio.

Thanks

R,Dejan

pbidolesi · November 6, 2019, 8:01pm

Hi,
I will provide more details:
-Printing taxfree with the original paper in the box => print was faded
-Printing tax free with our paper => same result , print faded
-Printing a demo receipt (not using the taxfree application) => faded aswell
thanks
regards

deepak · November 20, 2019, 8:03pm

Hi,
What is the result when you print the receipt from the transactions app.

dkelemina · November 22, 2019, 12:56pm

Hi,

With transaction app slips are not blurry. Could you give us manuals, code printing examples and how to implement printing correctly.

deepak · January 7, 2020, 7:41pm

If the printing is fine with the transaction app then i believe the way bitmap is generated is causing the issue.
Could you please send the code snippet used to generate the bitmap to devsupport@poynt.co

Thank you!

deepak · January 8, 2020, 12:04am

Try using this sample code to generate bitmap

github.com

poynt/PoyntSamples/blob/receipt-gen/codesamples/src/main/java/co/poynt/samples/codesamples/PrinterServiceActivity.java#L292


        Log.e(TAG,"receipt null");
        return 0;
    }
    //always give some space for user to tear paper
    int height = ReceiptCanvasInfo.PAPER_TEAR_SPACE;


    height += ReceiptCanvasInfo.calculateTextHeight(receipt);
    return height;
}


public static Bitmap createPrintableImage(PrintedReceiptV2 receipt) {


    int mediaHeight = calculateHeight(receipt);
    Log.d(TAG, "Height: " + mediaHeight);


    Bitmap bitmap = Bitmap.createBitmap(ReceiptCanvasInfo.PAPER_WIDTH, mediaHeight,
            Bitmap.Config.ARGB_8888);


    Canvas canvas = new Canvas(bitmap);
    canvas.drawColor(Color.WHITE);
    canvas.drawBitmap(bitmap, 0, 0, null);

you can override the font size, 24 usually works well

github.com

poynt/PoyntSamples/blob/receipt-gen/codesamples/src/main/java/co/poynt/samples/codesamples/PrinterServiceActivity.java#L354


if (content != null && content.getLines() != null) {
    paint.setColor(Color.BLACK);
    paint.setTextAlign(alignment);
    paint.setTextSize(ReceiptCanvasInfo.getDefaultFontSize());
    Typeface tf = Typeface.create(Typeface.MONOSPACE, Typeface.NORMAL);
    paint.setTypeface(tf);


    int leftMargin = Paint.Align.CENTER.equals(alignment) ? canvas.getWidth() / 2 :
            ReceiptCanvasInfo.getLeftMargin();


    //Change the font size for each section individually
    if (content.getFont() != null && content.getFont().getFontSize() != null && content.getFont().getFontSize().getValue() != 0) {
        paint.setTextSize(content.getFont().getFontSize().getValue());
    } else {
        paint.setTextSize(ReceiptCanvasInfo.getDefaultFontSize());
    }


    for (PrintedReceiptLine line : content.getLines()) {
        if (line != null) {
            int margin = 3;
            String str = line.getText();

paint.setTextSize(24);

Let me know the result